FCC Regulation Document

Part: 
Topic: C

47 CFR Part 80 (up to date as of 2/20/2024)
                                                                        47 CFR Part 80 (Feb. 20, 2024)
Stations in the Maritime Services

This content is from the eCFR and is authoritative but unofficial.

Title 47 —Telecommunication
Chapter I —Federal Communications Commission
Subchapter D —Safety and Special Radio Services

Part 80 Stations in the Maritime Services
  Subpart A General Information
      General
         § 80.1 Basis and purpose.
         § 80.2 Other regulations that apply.
         § 80.3 Other applicable rule parts of this chapter.
         § 80.5 Definitions.
         § 80.7 Incorporation by reference.
  Subpart B Applications and Licenses
      § 80.11 Scope.
      § 80.13 Station license required.
      § 80.15 Eligibility for station license.
      § 80.17 Administrative classes of stations.
      § 80.21 Supplemental information required.
      § 80.25 License term.
      § 80.31 Cancellation of license.
      § 80.37 One authorization for a plurality of stations.
      § 80.39 Authorized station location.
      § 80.41 Control points and dispatch points.
      § 80.43 Equipment acceptable for licensing.
      § 80.45 Frequencies.
      § 80.47 Operation during emergency.
      § 80.49 Construction and regional service requirements.
      § 80.51 Ship earth station licensing.
      § 80.53 Application for a portable ship station license.
      § 80.54 Automated Maritime Telecommunications System (AMTS)—System Licensing.
      § 80.55 Application for a fleet station license.
      § 80.57 Canada/U.S.A. channeling arrangement for VHF maritime public correspondence.
      § 80.59 Compulsory ship inspections.
      § 80.60 Partitioned licenses and disaggregated spectrum.
  Subpart C Operating Requirements and Procedures
      Station Requirements—General
         § 80.61 Commission inspection of stations.

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          § 80.63 Maintenance of transmitter power.
       Station Requirements—Land Stations
          § 80.67 General facilities requirements for coast stations.
          § 80.68 Facilities requirements for public coast stations using telegraphy.
          § 80.69 Facilities requirement for public coast stations using telephony.
          § 80.70 Special conditions relative to coast station VHF facilities.
          § 80.71 Operating controls for stations on land.
          § 80.72 Antenna requirements for coast stations.
          § 80.74 Public coast station facilities for a telephony busy signal.
          § 80.76 Requirements for land station control points.
       Station Requirements—Ship Stations
          § 80.79 Inspection of ship station by a foreign Government.
          § 80.80 Operating controls for ship stations.
          § 80.81 Antenna requirements for ship stations.
          § 80.83 Protection from potentially hazardous RF radiation.
       Operating Procedures—General
          § 80.86 International regulations applicable.
          § 80.87 Cooperative use of frequency assignments.
          § 80.88 Secrecy of communication.
          § 80.89 Unauthorized transmissions.
          § 80.90 Suspension of transmission.
          § 80.91 Order of priority of communications.
          § 80.92 Prevention of interference.
          § 80.93 Hours of service.
          § 80.94 Control by coast or Government station.
          § 80.95 Message charges.
          § 80.96 Maintenance tests.
          § 80.97 Radiotelegraph operating procedures.
          § 80.98 Radiotelegraph testing procedures.
          § 80.99 Radiotelegraph station identification.
          § 80.100 Morse code requirement.
          § 80.101 Radiotelephone testing procedures.
          § 80.102 Radiotelephone station identification.
          § 80.103 Digital selective calling (DSC) operating procedures.
          § 80.104 Identification of radar transmissions not authorized.
       Operating Procedures—Land Stations
          § 80.105 General obligations of coast stations.
          § 80.106 Intercommunication in the mobile service.
          § 80.107 Service of private coast stations and marine-utility stations.

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        § 80.108 Transmission of traffic lists by coast stations.
        § 80.109 Transmission to a plurality of mobile stations by a public coast station.
        § 80.110 Inspection and maintenance of antenna structure markings and associated control
                   equipment.
        § 80.111 Radiotelephone operating procedures for coast stations.
     Operating Procedures—Ship Stations
        § 80.114 Authority of the master.
        § 80.115 Operational conditions for use of associated ship units.
        § 80.116 Radiotelephone operating procedures for ship stations.
     Special Procedures—Public Coast Stations
        § 80.121 Public coast stations using telegraphy.
        § 80.122 Public coast stations using facsimile and data.
        § 80.123 Service to stations on land.
     Special Procedures—Private Coast Stations
        § 80.131 Radioprinter operations.
        § 80.133 Private coast stations using facsimile in Alaska.
     Special Procedures—Ship Stations
        § 80.141 General provisions for ship stations.
        § 80.142 Ships using radiotelegraphy.
        § 80.143 Required frequencies for radiotelephony.
        § 80.145 [Reserved]
     Shipboard General Purpose Watches
        § 80.146 [Reserved]
        § 80.147 Watch on 2182 kHz.
        § 80.148 Watch on 156.8 MHz (Channel 16).
     Violations
        § 80.149 Answer to notice of violation.
   Subpart D Operator Requirements
     § 80.151        Classification of operator licenses and endorsements.
     Coast Station Operator Requirements
        § 80.153 Coast station operator requirements.
     Ship Station Operator Requirements
        § 80.155 Ship station operator requirements.
        § 80.156 Control by operator.
        § 80.157 Radio officer defined.
        § 80.159 Operator requirements of Title III of the Communications Act and the Safety
                  Convention.
        § 80.161 Operator requirements for subpart T vessels on the Great Lakes.
        § 80.163 Operator requirements of the Bridge-to-Bridge Act.
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        § 80.165 Operator requirements for voluntary stations.
     General Operator Requirements
        § 80.167 Limitations on operators.
        § 80.169 Operators required to adjust transmitters or radar.
        § 80.175 Availability of operator licenses.
        § 80.177 When operator license is not required.
        § 80.179 Unattended operation.
   Subpart E General Technical Standards
     § 80.201 Scope.
     § 80.203 Authorization of transmitters for licensing.
     § 80.205 Bandwidths.
     § 80.207 Classes of emission.
     § 80.209 Transmitter frequency tolerances.
     § 80.211 Emission limitations.
     § 80.213 Modulation requirements.
     § 80.215 Transmitter power.
     § 80.217 Suppression of interference aboard ships.
     § 80.219 Special requirements for narrow-band direct-printing (NB–DP) equipment.
     § 80.221 Special requirements for automatically generating the radiotelephone alarm signal.
     § 80.223 Special requirements for survival craft stations.
     § 80.225 Requirements for selective calling equipment.
     § 80.227 Special requirements for protection from RF radiation.
     § 80.229 Special requirements for automatic link establishment (ALE).
     § 80.231 Technical Requirements for Class B Automatic Identification System (AIS)
               equipment.
     § 80.233 Technical requirements for Automatic Identification System Search and Rescue
               Transmitters (AIS–SART) equipment.
   Subpart F Equipment Authorization for Compulsory Ships
     § 80.251 Scope.
     § 80.268 Technical requirements for radiotelephone installation.
     § 80.271 Technical requirements for portable survival craft radiotelephone transceivers.
     § 80.273 Radar standards.
     § 80.275 Technical Requirements for Class A Automatic Identification System (AIS)
               equipment.
     § 80.277 Ship Security Alert System (SSAS).
     § 80.288 Direction finding and homing equipment.
     § 80.289 Requirements for radio direction finder.
     § 80.290 Auxiliary receiving antenna.
     § 80.291 Installation of direction finder.

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     § 80.292 Contingent acceptance of direction finder calibration.
     § 80.293 Check bearings by authorized ship personnel.
   Subpart G Safety Watch Requirements and Procedures
     Coast Station Safety Watches
        § 80.301 Watch requirements.
        § 80.302 Notice of discontinuance, reduction, or impairment of service involving a distress
                   watch.
        § 80.303 Watch on 156.800 MHz (Channel 16).
     Ship Station Safety Watches
        § 80.304 Watch requirement during silence periods.
        § 80.305 Watch requirements of the Communications Act and the Safety Convention.
        § 80.307 Compulsory use of radiotelegraph auto alarm.
        § 80.308 Watch required for subpart T vessels on the Great Lakes.
        § 80.309 Watch required by the Bridge-to-Bridge Act.
        § 80.310 Watch required by voluntary vessels.
     Distress, Alarm, Urgency and Safety Procedures
        § 80.311 Authority for distress transmission.
        § 80.312 Priority of distress transmissions.
        § 80.313 Frequencies for use in distress.
        § 80.314 Distress communications.
        § 80.317 Radiotelegraph and radiotelephone alarm signals.
        § 80.318 Use of alarm signals.
        § 80.319 Radiotelegraph distress call and message transmission procedure.
        § 80.320 Radiotelephone distress call and message transmission procedure.
        § 80.321 Acknowledgement of receipt of distress message.
        § 80.322 Form of acknowledgement.
        § 80.323 Information furnished by an acknowledging station.
        § 80.324 Transmission of distress message by station not itself in distress.
        § 80.325 Control of distress traffic.
        § 80.326 Notification of resumption of normal working.
        § 80.327 Urgency signals and messages.
        § 80.329 Safety signals and messages.
        § 80.331 Bridge-to-bridge communication procedure.
        § 80.332 Equipment to aid search and rescue operations.
        § 80.333 Stations in the maritime mobile-satellite service.
        § 80.334 False distress alerts.
        § 80.335 Procedures for canceling false distress alerts.
   Subpart H Frequencies

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     Radiotelegraphy and Data
        § 80.351 Scope.
        § 80.353 [Reserved]
        § 80.355 Distress, urgency, safety, call and reply Morse code frequencies.
        § 80.357 Working frequencies for Morse code and data transmission.
        § 80.359 Frequencies for digital selective calling (DSC).
        § 80.361 Frequencies for narrow-band direct-printing (NBDP), radioprinter and data
                   transmissions.
        § 80.363 Frequencies for facsimile.
        § 80.364 Frequencies for VHF digital small message services (VDSMS).
     Radiotelephony
        § 80.365 Scope.
        § 80.367 General uses—radiotelephony.
        § 80.369 Distress, urgency, safety, call and reply frequencies.
        § 80.371 Public correspondence frequencies.
        § 80.373 Private communications frequencies.
        § 80.374 Provisions for frequencies in the 4000–4063 and the 8100–8195 kHz bands
                   shared with the fixed service.
     Radiodetermination
        § 80.375 Radiodetermination frequencies.
        § 80.376 Radio buoy operations.
     Ship Earth Stations
        § 80.377 Frequencies for ship earth stations.
     Aircraft Stations
        § 80.379 Maritime frequencies assignable to aircraft stations.
     Operational Fixed Stations
        § 80.381 Frequencies for operational fixed stations.
     Vessel Traffic Services System (VTS)
        § 80.383 Vessel Traffic Services (VTS) system frequencies.
     Automated Systems
        § 80.385 Frequencies for automated systems.
     Alaska Fixed Stations
        § 80.387 Frequencies for Alaska fixed stations.
     Maritime Support Stations
        § 80.389 Frequencies for maritime support stations.
     Developmental Stations
     AIS Stations
        § 80.393 Frequencies for AIS stations.
   Subpart I Station Documents
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     § 80.401 Station documents requirement.
     § 80.403 Availability of documents.
     § 80.405 Station license.
     § 80.407 Operator authorization.
     § 80.409 Station logs.
     § 80.411 Vessel certification or exemption.
     § 80.413 On-board station equipment records.
     § 80.415 Publications.
     § 80.417 FCC Rules and Regulations.
   Subpart J Public Coast Stations
     Stations on Land
        § 80.451 Supplemental eligibility requirements.
        § 80.453 Scope of communications.
     Use of Telegraphy
        § 80.455 Assignment and use of frequencies for manual Morse code telegraphy.
        § 80.459 Digital selective calling.
        § 80.461 Narrow-band direct-printing.
     Use of Telephony
        § 80.465 Assignment and use of frequencies for telephony.
        § 80.467 Duplication of VHF service.
        § 80.469 Maritime mobile repeater stations in Alaska.
        § 80.471 Discontinuance or impairment of service.
     Automated Systems
        § 80.475 Scope of service of the Automated Maritime Telecommunications System (AMTS).
        § 80.477 AMTS points of communication.
        § 80.479 Assignment and use of frequencies for AMTS.
        § 80.481 Alternative technical parameters for AMTS transmitters.
   Subpart K Private Coast Stations and Marine Utility Stations
     § 80.501 Supplemental eligibility requirements.
     § 80.503 Cooperative use of facilities.
     § 80.505 Points of communication.
     § 80.507 Scope of service.
     § 80.509 Frequency assignment.
     § 80.513 Frequency coordination.
     § 80.514 Marine VHF frequency coordinating committee(s).
     § 80.515 Limitations on use.
     § 80.517 Time limitation on communication.
     § 80.519 Station identification.
   Subpart L Operational Fixed Stations

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     § 80.551 Applicability.
     § 80.553 Supplemental eligibility requirements.
     § 80.555 Scope of communication.
     § 80.557 Assignment and use of frequencies.
     § 80.559 Licensing limitations.
   Subpart M Stations in the Radiodetermination Service
     § 80.601 Scope of communications.
     § 80.603 Assignment and use of frequencies.
     § 80.605 U.S. Coast Guard coordination.
   Subpart N Maritime Support Stations
     § 80.651 Supplemental eligibility requirements.
     § 80.653 Scope of communications.
     § 80.655 Use of frequencies.
     § 80.659 Technical requirements.
   Subpart O Alaska Fixed Stations
     § 80.701 Scope of service.
     § 80.703 Priority of distress and other signals.
     § 80.705 Hours of service of Alaska-public fixed stations.
     § 80.707 Cooperative use of frequency assignments.
     § 80.709 Frequencies available.
     § 80.711 Use of U.S. Government frequencies.
   Subpart P Standards for Computing Public Coast Station VHF Coverage
     § 80.751 Scope.
     § 80.753 Signal strength requirements at the service area contour.
     § 80.755 Applicability.
     § 80.757 Topographical data.
     § 80.759 Average terrain elevation.
     § 80.761 Conversion graphs.
     § 80.763 Effective antenna height.
     § 80.765 Effective radiated power.
     § 80.767 Propagation curve.
     § 80.769 Shadow loss.
     § 80.771 Method of computing coverage.
     § 80.773 Co-channel interference protection.
   Subpart Q [Reserved]
   Subpart R Technical Equipment Requirements for Cargo Vessels Not Subject to
               Subpart W
     § 80.851 Applicability.
     § 80.853 Radiotelephone station.

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     § 80.854      Radiotelephone installation.
     § 80.855      Radiotelephone transmitter.
     § 80.858      Radiotelephone receiver.
     § 80.859      Main power supply.
     § 80.860      Reserve power supply.
     § 80.861      Required capacity.
     § 80.862      Proof of capacity.
     § 80.863      Antenna system.
     § 80.864      Emergency electric lights.
     § 80.865      Radiotelephone station clock.
     § 80.866      Spare antenna.
     § 80.867      Ship station tools, instruction books, circuit diagrams and testing equipment.
     § 80.868      Card of instructions.
     § 80.869      Test of radiotelephone station.
     § 80.871      VHF radiotelephone station.
     § 80.872      The VHF radiotelephone installation.
     § 80.873      VHF radiotelephone transmitter.
     § 80.874      VHF radiotelephone receiver.
     § 80.875      VHF radiotelephone power supply.
     § 80.876      VHF radiotelephone antenna system.
     § 80.877      Controls and indicators required for VHF radiotelephone installation.
     § 80.880      Vessel radio equipment.
     § 80.881      Equipment requirements for ship stations.
     § 80.882      2182 kHz watch.
   Subpart S       Compulsory Radiotelephone Installations for Small Passenger Boats
     § 80.901      Applicability.
     § 80.903      Inspection of radiotelephone installation.
     § 80.905      Vessel radio equipment.
     § 80.907      Principal operating position.
     § 80.909      Radiotelephone transmitter.
     § 80.911      VHF transmitter.
     § 80.913      Radiotelephone receivers.
     § 80.915      Main power supply.
     § 80.917      Reserve power supply.
     § 80.919      Required capacity.
     § 80.921      Proof of capacity.
     § 80.923      Antenna system.
     § 80.925      Electric light.
     § 80.927      Antenna radio frequency indicator.

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     § 80.929 Nameplate.
     § 80.931 Test of radiotelephone installation.
     § 80.933 General small passenger vessel exemptions.
     § 80.935 Station clock.
   Subpart T Radiotelephone Installation Required for Vessels on the Great Lakes
     § 80.951 Applicability.
     § 80.953 Inspection and certification.
     § 80.955 Radiotelephone installation.
     § 80.956 Required frequencies and uses.
     § 80.957 Principal operating position.
     § 80.959 Radiotelephone transmitter.
     § 80.961 Radiotelephone receiver.
     § 80.963 Main power supply.
     § 80.965 Reserve power supply.
     § 80.967 Antenna system.
     § 80.969 Illumination of operating controls.
     § 80.971 Test of radiotelephone installation.
   Subpart U Radiotelephone Installations Required by the Bridge-to-Bridge Act
     § 80.1001 Applicability.
     § 80.1003 Station required.
     § 80.1005 Inspection of station.
     § 80.1007 Bridge-to-bridge radiotelephone installation.
     § 80.1009 Principal operator and operating position.
     § 80.1011 Transmitter.
     § 80.1013 Receiver.
     § 80.1015 Power supply.
     § 80.1017 Antenna system.
     § 80.1019 Antenna radio frequency indicator.
     § 80.1021 Nameplate.
     § 80.1023 Test of radiotelephone installation.
   Subpart V Emergency Position Indicating Radiobeacons (EPIRB's)
     § 80.1051 Scope.
     § 80.1053 Prohibition on certification, manufacture, importation, sale or use of Class A, Class
                B, Class S, and INMARSAT–E EPIRBs.
     §§ 80.1055-80.1059 [Reserved]
     § 80.1061 Special requirements for 406.0–406.1 MHz EPIRB stations.
   Subpart W Global Maritime Distress and Safety System (GMDSS)
     General Provisions
     § 80.1065          Applicability.

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       § 80.1067         Inspection of station.
       § 80.1069         Maritime sea areas.
       § 80.1071         Exemptions.
       § 80.1073         Radio operator requirements for ship stations.
       § 80.1074         Radio maintenance personnel for at-sea maintenance.
       § 80.1075         Radio records.
       § 80.1077         Frequencies.
       Equipment Requirements for Ship Stations
          § 80.1081 Functional requirements.
          § 80.1083 Ship radio installations.
          § 80.1085 Ship radio equipment—General.
          § 80.1087 Ship radio equipment—Sea area A1.
          § 80.1089 Ship radio equipment—Sea areas A1 and A2.
          § 80.1091 Ship radio equipment—Sea areas A1, A2, and A3.
          § 80.1093 Ship radio equipment—Sea areas A1, A2, A3, and A4.
          § 80.1095 Survival craft equipment.
          § 80.1099 Ship sources of energy.
          § 80.1101 Performance standards.
          § 80.1103 Equipment authorization.
          § 80.1105 Maintenance requirements.
          § 80.1107 Test of radiotelephone station.
       Operating Procedures for Distress and Safety Communications
          § 80.1109 Distress, urgency, and safety communications.
          § 80.1111 Distress alerting.
          § 80.1113 Transmission of a distress alert.
          § 80.1114 False distress alerts.
          § 80.1115 Transmission of a distress alert by a station not itself in distress.
          § 80.1117 Procedure for receipt and acknowledgement of distress alerts.
          § 80.1119 Receipt and acknowledgement of distress alerts by coast stations and coast
                    earth stations.
          § 80.1121 Receipt and acknowledgement of distress alerts by ship stations and ship earth
                    stations.
          § 80.1123 Watch requirements for ship stations.
          § 80.1125 Search and rescue coordinating communications.
          § 80.1127 On-scene communications.
          § 80.1129 Locating and homing signals.
          § 80.1131 Transmissions of urgency communications.
          § 80.1133 Transmission of safety communications.
          § 80.1135 Transmission of maritime safety information.

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   Subpart X Voluntary Radio Installations
     General
        § 80.1151 Voluntary radio operations.
        § 80.1153 Station log and radio watches.
     Voluntary Telegraphy
        § 80.1155 Radioprinter.
        § 80.1157 Facsimile.
        § 80.1159 Narrow-band direct-printing (NB-DP).
        § 80.1161 Emergency position indicating radiobeacon (EPIRB).
     Voluntary Telephony
        § 80.1165 Assignment and use of frequencies.
        § 80.1169 [Reserved]
        § 80.1171 Assignment and use of frequencies.
     On-Board Communications
        § 80.1175 Scope of communications of on-board stations.
        § 80.1177 Assignment and use of frequencies.
        § 80.1179 On-board repeater limitations.
        § 80.1181 Station identification.
        § 80.1183 Remote control for maneuvering or navigation.
     Mobile-Satellite Stations
        § 80.1185 Supplemental eligibility for mobile-satellite stations.
        § 80.1187 Scope of communication.
        § 80.1189 Portable ship earth stations.
     Radiodetermination
        § 80.1201 Special provisions for cable-repair ship stations.
   Subpart Y Competitive Bidding Procedures
     § 80.1251 Maritime communications subject to competitive bidding.
     § 80.1252 Designated entities.

PART 80—STATIONS IN THE MARITIME SERVICES
Authority: 47 U.S.C. 151–155, 301–609; 3 U.S.T. 3450, 3 U.S.T. 4726, 12 U.S.T. 2377.

Source: 51 FR 31213, Sept. 2, 1986, unless otherwise noted.

Subpart A—General Information

                                                   GENERAL

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§ 80.1 Basis and purpose.
This section contains the statutory basis for this part of the rules and provides the purpose for which this part is
issued.

     (a) Basis. The rules for the maritime services in this part are promulgated under the provisions of the
         Communications Act of 1934, as amended, which vests authority in the Federal Communications
         Commission to regulate radio transmission and to issue licenses for radio stations. The rules in this part
         are in accordance with applicable statutes, international treaties, agreements and recommendations to
         which the United States is a party. The most significant of these documents are listed below with the
         short title appearing in parenthesis:

           (1) Communications Act of 1934, as amended—(Communications Act).

           (2) Communications Satellite Act of 1962, as amended—(Communications Satellite Act).

           (3) International Telecommunication Union Radio Regulations, in force for the United States—(Radio
               Regulations).

           (4) International Convention for Safety of Life at Sea, 1974, as amended, and the Annex thereto—(Safety
               Convention).

           (5) Vessel Bridge-to-Bridge Radiotelephone Act—(Bridge-to-Bridge Act).

     (b) Purpose. This part states the conditions under which radio may be licensed and used in the maritime
         services. These rules do not govern radio stations operated by agencies of the U.S. Government.

[51 FR 31213, Sept. 2, 1986, as amended at 88 FR 77219, Nov. 9, 2023]

§ 80.2 Other regulations that apply.
The Commandant, U.S. Coast Guard has promulgated regulations which affect radiotelecommunication equipment
carriage and power source installation requirements for certain ships. Inquiries concerning applicable U.S. Coast
Guard regulations are to addressed to the Commandant, U.S. Coast Guard, Washington, DC 20593, or to the nearest
District Headquarters Office of the U.S. Coast Guard.

§ 80.3 Other applicable rule parts of this chapter.
Other FCC rule parts applicable to licensees in the maritime services include the following:

     (a) Part 0. This part describes the Commission's organization and delegations of authority. Part 0 also lists
         available Commission publications, standards and procedures for access to Commission records and
         location on Commission monitoring stations.

     (b) Part 1. This part includes rules of practice and procedure for license applications, adjudicatory
         proceedings, procedures for reconsideration and review of the Commission's actions; provisions
         concerning violation notices and forfeiture proceedings; and the environmental processing requirements
         that, together with the procedures specified in § 17.4(c) of this chapter, if applicable, must be complied
         with prior to the initiation of construction. Subpart Q of part 1 contains rules governing competitive
         bidding procedures for resolving mutually exclusive applications for certain initial licenses.

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     (c) Part 2. This part contains the Table of Frequency Allocations and special requirements in international
         regulations, recommendations, agreements, and treaties. This part also contain standards and
         procedures concerning marketing of radio frequency devices, and for obtaining equipment authorization.

     (d) Part 13. This part contains information and rules for the licensing of commercial radio operators.

     (e) Part 17. This part contains requirements for the construction, marking and lighting of antenna towers, and
         the environmental notification process that must be completed before filing certain antenna structure
         registration applications.

     (f) Part 20 of this chapter which governs commercial mobile radio services which include subpart J of this
         part (public coast stations).

     (g) Part 21. This part contains rules concerning point-to-point microwave service authority relating to
         communication common carriers.

     (h) Part 64. This part contains miscellaneous rules relating to communication common carriers.

     (i)   Part 68. This part contains technical standards for connection of terminal equipment to the telephone
           network.

     (j)   Part 87. This part contains rules for the aviation services. Some maritime frequencies are authorized for
           use by aircraft stations for safety and distress, public correpondence and for operational
           communications.

     (k) Part 101. This part contains rules concerning the private microwave service relating to point-to-point
         communication requirements.

[51 FR 31213, Sept. 2, 1986, as amended at 55 FR 20398, May 16, 1990; 59 FR 18499, Apr. 19, 1994; 63 FR 40062, July 27, 1998;
63 FR 68955, Dec. 14, 1998; 77 FR 3955, Jan. 26, 2012]

§ 80.5 Definitions.
    Alaska—public fixed station. A fixed station in Alaska which is open to public correspondence and is licensed by
          the Commission for radio communication with Alaska-Private fixed stations on paired channels.

    Alaska—private fixed station. A fixed station in Alaska which is licensed by the Commission for radio
          communication within Alaska and with associated ship stations, on single frequency channels. Alaska-
          private fixed stations are also eligible to communicate with Alaska-public fixed stations on paired
          channels.

    Associated ship unit. A portable VHF transmitter for use in the vicinity of the ship station with which it is
         associated.

    Automated maritime telecommunications system (AMTS). An automatic maritime communications system.

    Automated mutual-assistance vessel rescue system (AMVER). An international system, operated by the U.S.
         Coast Guard, which provides aid to the development and coordination of search and rescue (SAR) efforts.
         Data is made available to recognized SAR agencies or vessels of any nation for reasons related to marine
         safety.

    Automatic Identification Systems (AIS). A maritime navigation safety communications system standardized by
         the International Telecommunication Union (ITU) and adopted by the International Maritime Organization
         (IMO) that provides vessel information, including the vessel's identity, type, position, course, speed,

47 CFR 80.5 “Automatic Identification Systems (AIS)” (enhanced display)                                         page 14 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                   47 CFR 80.5 “Bridge-to-bridge station”
Stations in the Maritime Services

           navigational status and other safety-related information automatically to appropriately equipped shore
           stations, other ships, and aircraft; receives automatically such information from similarly fitted ships;
           monitors and tracks ships; and exchanges data with shore-based facilities.

    Bridge-to-bridge station. A radio station located on a ship's navigational bridge or main control station operating
          on a specified frequency which is used only for navigational communications, in the 156–162 MHz band.

    Cargo ship safety radio certificate. A certificate issued after a ship passes an inspection of the required
          radiotelegraph, radiotelephone or GMDSS radio installation. Issuance of this certificate indicates that the
          vessel complies with the Communications Act and the Safety Convention.

    Cargo ship safety radiotelegraphy certificate. A certificate issued after a ship passes an inspection of a
          radiotelegraph installation. Issuance of this certificate indicates that the vessel complies with the
          Communications Act and the Safety Convention.

    Cargo ship safety radiotelephony certificate. A certificate issued after a ship passes an inspection of a
          radiotelephone installation. Issuance of this certificate indicates that the vessel complies with the
          Communications Act and the Safety Convention.

    Categories of ships.

           (1) When referenced in Part II of Title III of the Communications Act or the radio provisions of the Safety
               Convention, a ship is a passenger ship if it carries or is licensed or certificated to carry more than
               twelve passengers. A cargo ship is any ship not a passenger ship.

           (2) A commercial transport vessel is any ship which is used primarily in commerce

                 (i)   for transporting persons or goods to or from any harbor(s) or port(s) or between places within a
                       harbor or port area, or

                (ii) in connection with the construction, change in construction, servicing, maintenance, repair,
                     loading, unloading, movement, piloting, or salvaging of any other ship or vessel.

           (3) The term passenger carrying vessel, when used in reference to Part III, Title III of the Communications
               Act or subpart T of this part, means any ship transporting more than six passengers for hire.

           (4) Power-driven vessel. Any ship propelled by machinery.

           (5) Towing vessel. Any commercial ship engaged in towing another ship astern, alongside or by pushing
               ahead.

           (6) Compulsory ship. Any ship which is required to be equipped with radiotelecommunication equipment
               in order to comply with the radio or radio-navigation provisions of a treaty, statute, or subpart T of
               this part to which the vessel is subject.

           (7) Voluntary ship. Any ship which is not required by treaty or statute to be equipped with
               radiotelecommunication equipment.

    Coast station. A land station in the maritime mobile service.

    Commercial communications. Communications between coast stations and ship stations aboard commercial
        transport vessels, or between ship stations aboard commercial transport vessels, which relate directly to
        the purposes for which the ship is used including the piloting of vessels, movements of vessels, obtaining
        vessel supplies, and scheduling of repairs.

    Day.

47 CFR 80.5 “Day” (enhanced display)                                                                       page 15 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                    47 CFR 80.5 “Day” (1)
Stations in the Maritime Services

           (1) Where the word day is applied to the use of a specific frequency assignment or to a specific
               authorized transmitter power, its use means transmission on the frequency assignment or with the
               authorized transmitter power during that period of time included between one hour after local
               sunrise and one hour before local sunset.

           (2) Where the word day occurs in reference to watch requirements, or to equipment testing, its use
               means the calendar day, from midnight to midnight, local time.

    Digital selective calling (DSC). A synchronous system developed by the International Telecommunication Union
           Radiocommunication (ITU–R) Sector, used to establish contact with a station or group of stations
           automatically by means of radio. The operational and technical characteristics of this system are
           contained in ITU–R M.493–13 and ITU–R M.541–9 (both incorporated by reference, see § 80.7) (see
           subpart W of this part.)

    Direction finder (radio compass). Apparatus capable of receiving radio signals and taking bearings on these
           signals from which the true bearing and direction of the point of origin may be determined.

    Distress signal. The distress signal is a digital selective call using an internationally recognized distress call
          format in the bands used for terrestrial communication or an internationally recognized distress message
          format, in which case it is relayed through space stations, which indicates that a person, ship, aircraft, or
          other vehicle is threatened by grave and imminent danger and requests immediate assistance.

           (1) In radiotelephony, the international distress signal consists of the enunciation of the word “Mayday”,
               pronounced as the French expression “m'aider”. In case of distress, transmission of this particular
               signal is intended to ensure recognition of a radiotelephone distress call by stations of any
               nationality.

           (2) For GMDSS, distress alerts result in an audible alarm and visual indication that a ship or person is
               threatened by grave and imminent danger and requests immediate assistance. These automatic
               systems contain sufficient information in the distress alert message to identify the vessel, prepare to
               assist and begin a search. However, except when transmitted via satellite EPIRB, the distress alert is
               just the initial call for help. Communication between the vessel or person in distress and the Rescue
               Coordination Center (RCC) or ship assisting should always follow.

    Distress traffic. Distress traffic consists of all messages relating to the immediate assistance required by a
          person, ship, aircraft, or other vehicle in distress, including search and rescue communications and on-
          scene communications.

    Emergency position indicating radiobeacon (EPIRB) station. A station in the maritime mobile service the
         emissions of which are intended to facilitate search and rescue operations.

    Environmental communications. Broadcasts of information about the environmental conditions in which vessels
          operate, i.e., weather, sea conditions, time signals adequate for practical navigation, notices to mariners,
          and hazards to navigation.

    Fleet radio station license. An authorization issued by the Commission for two or more ships having a common
           owner or operator.

    Global maritime distress and safety system (GMDSS). An International Maritime Organization (IMO) worldwide
          coordinated maritime distress system designed to provide the rapid transfer of distress messages from
          vessels in distress to units best suited for giving or coordinating assistance. The system includes

47 CFR 80.5 “Global maritime distress and safety system (GMDSS)” (enhanced display)                       page 16 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                               47 CFR 80.5 “Great Lakes”
Stations in the Maritime Services

           standardized equipment and operational procedures, unique identifers for each station, and the integrated
           use of frequency bands and radio systems to ensure the transmission and reception of distress and
           safety calls and messages at short, medium and long ranges.

    Great Lakes. This term means all of Lakes Ontario, Erie, Huron (including Georgian Bay), Michigan, Superior, their
          connecting and tributary waters and the St. Lawrence River as far east as the lower exit of the St. Lambert
          Lock at Montreal in the Province of Quebec, Canada, but does not include any connecting and tributary
          waters other than: the St. Marys River, the St. Clair River, Lake St. Clair, the Detroit River and the Welland
          Canal.

    Harbor or port. Any place to which ships may resort for shelter, or to load or unload passengers or goods, or to
         obtain fuel, water, or supplies. This term applies to such places whether proclaimed public or not and
         whether natural or artifical.

    Inland waters. This term, as used in reference to waters of the United States, its territories and possessions,
          means waters that lie landward of the boundary lines of inland waters as contained in 33 CFR 80.01, as
          well as waters within its land territory, such as rivers and lakes, over which the United States exercises
          sovereignty.

    INMARSAT. INMARSAT Ltd. is a private commercial company licensed in the United Kingdom.

    Marine utility station. A station in the maritime mobile service consisting of one or more handheld
          radiotelephone units licensed under a single authorization. Each unit is capable of operation while being
          hand-carried by an individual. The station operates under the rules applicable to ship stations when the
          unit is aboard a vessel, and under the rules applicable to private coast stations when the unit is on land.

    Maritime control communications. Communications between private coast and ship stations or between ship
          stations licensed to a state or local governmental entity, which relate directly to the control of boating
          activities or assistance to ships.

    Maritime mobile repeater station. A land station at a fixed location established for the automatic retransmission
          of signals to extend the range of communication of ship and coast stations.

    Maritime mobile-satellite service. A mobile-satellite service in which mobile earth stations are located on board
          ships. Survival craft stations and EPIRB stations may also participate in this service.

    Maritime mobile service. A mobile service between coast stations and ship stations, or between ship stations, or
          between associated on-board communication stations. Survival craft stations and EPIRB stations also
          participate in this service.

    Maritime mobile service identities (MMSI). An international system for the identification of radio stations in the
          maritime mobile service. The system is comprised of a series of nine digits which are transmitted over
          the radio path to uniquely identify ship stations, ship earth stations, coast stations, coast earth stations
          and groups of stations.

    Maritime radiodetermination service. A maritime radiocommunication service for determining the position,
          velocity, and/or other characteristics of an object, or the obtaining of information relating to these
          parameters, by the propagation properties of radio waves.

    Maritime support station. A station on land used in support of the maritime services to train personnel and to
          demonstrate, test and maintain equipment.

47 CFR 80.5 “Maritime support station” (enhanced display)                                                  page 17 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                           47 CFR 80.5 “Navigable waters”
Stations in the Maritime Services

    Navigable waters. This term, as used in reference to waters of the United States, its territories and possessions,
          means the waters shoreward of the baseline of its territorial sea and internal waters as contained in 33
          CFR 2.36.

    Navigational communications. Safety communications pertaining to the maneuvering of vessels or the directing
          of vessel movements. Such communications are primarily for the exchange of information between ship
          stations and secondarily between ship stations and coast stations.

    Noncommercial communications. Communication between coast stations and ship stations other than
         commercial transport ships, or between ship stations aboard other than commercial transport ships
         which pertain to the needs of the ship.

    Non-selectable transponder. A transponder whose coded response is displayed on any conventional radar
         operating in the appropriate band.

    On-board communication station. A low-powered mobile station in the maritime mobile service intended for use
         for internal communications on board a ship, or between a ship and its lifeboats and life-rafts during
         lifeboat drills or operations, or for communication within a group of vessels being towed or pushed, as
         well as for line handling and mooring instructions.

    On-board repeater. A radio station that receives and automatically retransmits signals between on-board
         communication stations.

    Open sea. The water area of the open coast seaward of the ordinary low-water mark, or seaward of inland
          waters.

    Operational fixed station. A fixed station, not open to public correspondence, operated by entities that provide
          their own radiocommunication facilities in the private land mobile, maritime or aviation services.

    Passenger ship safety certificate. A certificate issued by the Commandant of the Coast Guard after inspection of
         a passenger ship which complies with the requirements of the Safety Convention.

    Pilot. Pilot means a Federal pilot required by 46 U.S.C. 764, a state pilot required under the authority of 46 U.S.C.
           211, or a registered pilot required by 46 U.S.C. 216.

    Port operations communications. Communications in or near a port, in locks or in waterways between coast
          stations and ship stations or between ship stations, which relate to the operational handling, movement
          and safety of ships and in emergency to the safety of persons.

    Portable ship station. A ship station which includes a single transmitter intended for use upon two or more
          ships.

    Private coast station. A coast station, not open to public correspondence, which serves the operational,
           maritime control and business needs of ships.

    Public coast station. A coast station that offers radio communication common carrier services to ship radio
          stations.

    Public correspondence. Any telecommunication which the offices and stations must, by reason of their being at
          the disposal of the public, accept for transmission.

    Radar beacon (RACON). A receiver-transmitter which, when triggered by a radar, automatically returns a
          distinctive signal which can appear on the display of the triggering radar, providing range, bearing and
          identification information.

47 CFR 80.5 “Radar beacon (RACON)” (enhanced display)                                                      page 18 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                    47 CFR 80.5 “Radioprinter operations”
Stations in the Maritime Services

    Radioprinter operations. Communications by means of a direct printing radiotelegraphy system using any
          alphanumeric code, within specified bandwidth limitations, which is authorized for use between private
          coast stations and their associated ship stations on vessels of less than 1600 gross tons.

    Safety communication. The transmission or reception of distress, alarm, urgency, or safety signals, or any
          communication preceded by one of these signals, or any form of radiocommunication which, if delayed in
          transmission or reception, may adversely affect the safety of life or property.

    Safety signal.

           (1) The safety signal is the international radiotelegraph or radiotelephone signal which indicates that the
               station sending this signal is preparing to transmit a message concerning the safety of navigation or
               giving important meteorological warnings.

           (2) In radiotelegraphy, the international safety signals consists of three repetitions of the group “TTT,”
               sent before the call, with the letters of each group and the successive groups clearly separated from
               each other.

           (3) In radiotelephony, the international safety signal consists of three oral repetitions of “Security,”
               pronounced as the French word “Securite,” sent before the call.

           (4) For GMDSS, safety calls result in an audible alarm and visual indication that the station sending this
               signal has a very urgent message to transmit concerning the safety of navigation or giving important
               meteorological warnings.

    Selectable tfransponder. A transponder whose coded response may be inhibited or displayed on a radar on
          demand by the operator of that radar.

    Selective calling. A means of calling in which signals are transmitted in accordance with a prearranged code to
          operate a particular automatic attention device at the station whose attention is sought.

    Ship earth station. A mobile earth station in the maritime mobile-satellite service located on board ship.

    Ship or vessel. Ship or vessel includes every description of watercraft or other artificial contrivance, except
          aircraft, capable of being used as a means of transportation on water whether or not it is actually afloat.

    Ship radio station license. An authorization issued by the Commission to operate a radio station onboard a
           vessel.

    Ship station. A mobile station in the maritime mobile service located on-board a vessel which is not permanently
          moored, other than a survival craft station.

    Station. One or more transmitters or a combination of transmitters and receivers, including the accessory
          equipment, necessary at one location for carrying on radiocommunication services.

    Survival craft station. A mobile station in the maritime or aeronautical mobile service intended solely for survival
          purposes and located on any lifeboat, liferaft or other survival equipment.

    Underway. A vessel is underway when it is not at anchor, made fast to the shore, or aground.

    Urgency signal.

           (1) The urgency signal is the international radiotelegraph or radiotelephone signal which indicates that
               the calling station has a very urgent message to transmit concerning the safety of a ship, aircraft, or
               other vehicle, or of some person on board or within sight.

47 CFR 80.5 “Urgency signal” (1) (enhanced display)                                                         page 19 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                               47 CFR 80.5 “Urgency signal” (2)
Stations in the Maritime Services

           (2) In radiotelegraphy, the international urgency signal consists of three repetitions of the group “XXX,”
               sent before the call, with the letters of each group and the successive groups clearly separated from
               each other.

           (3) In radiotelephony, the international urgency signal consists of three oral repetitions of the group of
               words “PAN PAN”, each word of the group pronounced as the French word “PANNE” and sent before
               the call.

           (4) For GMDSS, urgency calls result in an audible alarm and visual indication that the station sending
               this signal has a very urgent message to transmit concerning the safety of a ship, aircraft, or other
               vehicle, or of some person on board or within sight.

    Vessel traffic service (VTS). A U.S. Coast Guard traffic control service for ships in designated water areas to
          prevent collisions, groundings and environmental harm.

    Watch. The act of listening on a designated frequency.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 7417, Mar. 11, 1987; 52 FR 35244, Sept. 18, 1987; 56 FR 3783, Jan. 31, 1991; 57
FR 26778, June 16, 1992; 58 FR 16504, Mar. 29, 1993; 60 FR 35510, July 10, 1995; 63 FR 29658, June 1, 1998; 68 FR 46959, Aug.
7, 2003; 71 FR 60074, Oct. 12, 2006; 72 FR 31194, June 6, 2007; 73 FR 4480, Jan. 25, 2008; 76 FR 67607, Nov. 2, 2011; 88 FR
77220, Nov. 9, 2023]

§ 80.7 Incorporation by reference.
     (a) Certain material is incorporated by reference into this part with the approval of the Director of the Federal
         Register under 5 U.S.C. 552(a) and 1 CFR part 51. To enforce any edition other than that specified in this
         section, the FCC must publish a document in the FEDERAL REGISTER and the material must be available to
         the public. All approved incorporation by reference (IBR) material is available for inspection at the FCC
         and the National Archives and Records Administration (NARA). Contact the FCC through the Federal
         Communications Commission's Reference Information Center, phone: (202) 418–0270. For information
         on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations.html or
         email fr.inspection@nara.gov. The material may be obtained from the sources in the following paragraphs
         of this section.

     (b) The International Maritime Organization (IMO), 4 Albert Embankment, London SE1 7SR, United Kingdom;
         http://www.imo.org; Tel. + 44 (0)20 7735 7611; Fax + 44 (0)20 7587 3210; email: info@imo.org.

           (1) IMO Resolution A.525(13) (“IMO Resolution A.525(13)”), “Performance Standards for Narrow-band
               Direct Printing Telegraph Equipment for the Reception of Navigational and Meteorological Warnings
               and Urgent Information to Ships,” including Annex, adopted 17 November 1983, IBR approved for §§
               80.905 and 80.1101.

           (2) IMO Maritime Safety Committee (MSC) Resolution MSC.148(77) (“IMO Resolution MSC.148(77)”),
               “Adoption of the Revised Performance Standards for Narrow-band Direct Printing Telegraph
               Equipment for the Reception of Navigational and Meteorological Warnings and Urgent Information to
               Ships (NAVTEX),” adopted on 3 June 2003, IBR approved for §§ 80.905 and 80.1101.

           (3) IMO Assembly Resolution A.662(16) (“IMO Resolution A.662(16)”), “Performance Standards for
               Float-free Release and Activation Arrangements for Emergency Radio Equipment,” adopted 19
               October 1989, IBR approved for § 80.1101.

           (4) IMO Assembly Resolution A.664(16) (“IMO Resolution A.664(16)”), “Performance Standards for
               Enhanced Group Call Equipment,” adopted 19 October 1989, IBR approved for § 80.1101.
47 CFR 80.7(b)(4) (enhanced display)                                                                             page 20 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                   47 CFR 80.7(b)(5)
Stations in the Maritime Services

           (5) IMO Resolution A.694(17) (“IMO Resolution A.694(17)”), “Recommendation on General Requirements
               for Shipborne Radio Equipment Forming part of the Global Maritime Distress and Safety System
               (GMDSS) and for Electronic Navigational Aids,” adopted 6 November 1991, IBR approved for §§
               80.273 and 80.1101.

           (6) IMO Resolution MSC.149(77) (“IMO Resolution MSC.149(77)”), “Adoption of the Revised
               Performance Standards for Survival Craft Two-Way VHF Radiotelephone Apparatus,” adopted on 3
               June 2003, IBR approved for §§ 80.273 and 80.1101.

           (7) IMO Assembly Resolution A.700(17), (“IMO Resolution A.700(17)”), “Performance Standards for
               Narrow-band Direct-printing Telegraph Equipment for the Reception of Navigational and
               Meteorological Warnings and Urgent Information to Ships (MSI) by HF,” adopted 6 November 1991,
               IBR approved for § 80.1101.

           (8) IMO Assembly Resolution A.801(19) Appendix 13, Annex 5 (“IMO Resolution A.801(19)”), “Criteria for
               Use When Providing Inmarsat Shore-Based Facilities for Use in the GMDSS,” adopted 23 November
               1995, IBR approved for § 80.1091.

           (9) IMO Assembly Resolution A.802(19) (“IMO Resolution A.802(19)”), “Performance Standards for
               Survival Craft Radar Transponders for Use in Search and Rescue Operations,” with Annex, adopted 23
               November 1995, IBR approved for § 80.1101.

          (10) IMO Resolution MSC.247(83) (“IMO Resolution MSC.247(83)”), “Adoption of Amendments to
               Performance Standards for Survival Craft Radar Transponders for Use in Search and Rescue
               Operations,” adopted on 8 October 2007, IBR approved for § 80.1101.

          (11) IMO Assembly Resolution A.803(19) (“IMO Resolution A.803(19)”), “Performance Standards for
               Shipborne VHF Radio Installations Capable of Voice Communication and Digital Selective Calling,”
               with Annex, adopted 23 November 1995, IBR approved for § 80.1101.

          (12) IMO Resolution MSC.68(68) (“IMO Resolution MSC.68(68)”), “Adoption of Amendments to
               Performance Standards for Shipborne Radiocommunications Equipment,” adopted on 6 June 1997,
               IBR approved for § 80.1101.

          (13) IMO Assembly Resolution A.804(19) (“IMO Resolution A.804(19)”), “Performance Standards for
               Shipborne MF Radio Installations Capable of Voice Communication and Digital Selective Calling,”
               with Annex, adopted 23 November 1995, IBR approved for § 80.1101.

          (14) IMO Assembly Resolution A.806(19) (“IMO Resolution A.806(19)”), “Performance Standards for
               Shipborne MF/HF Radio Installations Capable of Voice Communication, Narrow-Band Direct Printing
               and Digital Selective Calling,” with Annex, adopted 23 November 1995, IBR approved for § 80.1101.

          (15) IMO Assembly Resolution A.807(19) (“IMO Resolution A.807(19)”), “Performance Standards for
               INMARSAT–C Ship Earth Stations Capable of Transmitting and Receiving Direct-Printing
               Communications,” with Annex, adopted 23 November 1995, IBR approved for § 80.1101.

          (16) IMO Assembly Resolution A.808(19) (“IMO Resolution A.808(19)”), “Performance Standards for Ship
               Earth Stations Capable of Two-Way Communications,” with Annex, adopted 23 November 1995, IBR
               approved for § 80.1101.

          (17) IMO Assembly Resolution A.809(19) (“IMO Resolution A.809(19)”), “Performance Standards for
               Survival Craft Two-Way VHF Radiotelephone Apparatus,” including Annexes 1 and 2, adopted 23
               November 1995, IBR approved for § 80.1101.

47 CFR 80.7(b)(17) (enhanced display)                                                                page 21 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                  47 CFR 80.7(b)(18)
Stations in the Maritime Services

          (18) IMO Assembly Resolution A.810(19) (“IMO Resolution A.810(19)”), “Performance Standards for
               Float-free Satellite Emergency Position-indicating Radio Beacons (EPIRBs) Operating on 406 MHz,”
               with Annex, adopted 23 November 1995, IBR approved for § 80.1101.

          (19) IMO Resolution MSC.56(66) (“IMO Resolution MSC.56(66)”), “Adoption of Amendments to
               Recommendations on Performance Standards for Float-free Satellite Emergency Position-indicating
               Radio Beacons (EPIRBs) Operating on 406 MHz,” adopted on 3 June 1996, IBR approved for §
               80.1101.

          (20) IMO Resolution MSC.120(74) (“IMO Resolution MSC.120(74)”), “Adoption of Amendments to
               Performance Standards for Float-free Satellite Emergency Position-indicating Radio Beacons
               (EPIRBs) Operating on 406 MHz,” adopted on 31 May 2001, IBR approved for § 80.1101.

          (21) IMO Assembly Resolution A.811(19) (“IMO Resolution A.811(19)”), “Performance Standards for a
               Shipborne Integrated Radiocommunication System (IRCS) When Used in the GMDSS,” with Annex,
               adopted 23 November 1995, IBR approved for § 80.1083.

          (22) IMO Assembly Resolution A.1001(25) (“IMO Resolution A.1001(25)”), “Criteria for the Provision of
               Mobile Satellite Communication Systems in the Global Maritime Distress and Safety System
               (GMDSS),” with Annex, adopted 29 November 2007, IBR approved for § 80.1091.

          (23) IMO Resolution MSC.74(69) (“IMO Resolution MSC.74(69)”), “Adoption of New and Amended
               Performance Standards, Annex 3 Recommendation on Performance Standards for an Universal
               Shipborne Automatic Identification System (AIS),” adopted 12 May 1998, IBR approved for §
               80.1101.

          (24) IMO Resolution MSC.80(70) (“IMO Resolution MSC.80(70)”), “Adoption of New Performance
               Standards for Radiocommunication Equipment,” with Annexes, adopted 8 December 1998, IBR
               approved for § 80.1101.

          (25) IMO Resolution MSC.191(79) (“IMO Resolution MSC.191(79)”), “Performance Standards for the
               Presentation of Navigation-Related Information on Shipborne Navigational Displays,” adopted 6
               December 2004, IBR approved for §§ 80.273 and 80.1101.

          (26) IMO Resolution MSC.192(79) (“IMO Resolution MSC.192(79)”), “Revised Recommendation on
               Performance Standards for Radar Equipment,” adopted 6 December 2004, IBR approved for §§
               80.273 and 80.1101.

          (27) IMO Circular MSC/Circ.1040 (“IMO Circular MSC/Circ.1040”), “Guidelines on annual testing of 406
               MHz satellite EPIRBs” adopted 28 May 2002, IBR approved for § 80.1085.

          (28) IMO Resolution MSC.246(83), (“IMO Resolution MSC.246(83)”) “Adoption of Performance Standards
               for Survival Craft AIS Search and Rescue Transmitters (AIS–SART) for Use in Search and Rescue
               Operations,” IBR approved for § 80.233(a).

     (c) The International Telecommunication Union (ITU), Place des Nations, CH–1211, Geneva 20, Switzerland;
         www.itu.int; Voice: + 41 22 730 5111; Fax: + 41 22 733 7256; email: itumail@itu.int.

           (1) ITU–R Recommendation M.476–5 (“ITU–R M.476–5”), “Direct-Printing Telegraph Equipment in the
               Maritime Mobile Service,” with Annex, 1995, IBR approved for §§ 80.219 and 80.225.

           (2) ITU–R Recommendation M.492–6 (“ITU–R M.492–6”), “Operational Procedures for the use of Direct-
               Printing Telegraph Equipment in the Maritime Mobile Service,” with Annex, 1995, IBR approved for §
               80.142.

47 CFR 80.7(c)(2) (enhanced display)                                                                 page 22 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                   47 CFR 80.7(c)(3)
Stations in the Maritime Services

           (3) ITU–R Recommendation M.493–13, (“ITU–R M.493–13”), “Digital Selective-calling System for Use in
               the Maritime Mobile Service,” with Annexes 1, 2, 3, and 4 (10/2009), IBR approved for §§ 80.5,
               80.179, 80.225, 80.1101, and 80.1113.

           (4) ITU–R Recommendation M.540–2 (“ITU–R M.540–2”), “Operational and Technical Characteristics for
               an Automated Direct-printing Telegraph System for Promulgation of Navigational and Meteorological
               Warnings and Urgent Information to Ships,” including Annexes, 1990, IBR approved for §§ 80.905,
               80.1101, and 80.1135.

           (5) ITU–R Recommendation M.541–9 (“ITU–R M.541–9”) “Operational Procedures for the Use of Digital
               Selective-Calling Equipment in the Maritime Mobile Service,” with Annexes 1 through 5, 2004, IBR
               approved for §§ 80.5, 80.103, 80.179, 80.225, 80.359, 80.1101, 80.1113, and 80.1117.

           (6) ITU–R Recommendation M.625–3 (“ITU–R M.625–3”), “Direct-Printing Telegraph Equipment
               Employing Automatic Identification in the Maritime Mobile Service,” with Annex, 1995, IBR approved
               for §§ 80.219, 80.225, 80.1125, 80.1127, 80.1131, and 80.1133.

           (7) ITU–R Recommendation M.628–4 (“ITU–R M.628–4”), “Technical Characteristics for Search and
               Rescue Radar Transponders,” with Annexes, 2006, IBR approved for §§ 80.1101 and 80.1129.

           (8) ITU–R Recommendation M.633–3 (“ITU–R M.633–3”), “Transmission characteristics of a satellite
               emergency position-indicating radiobeacon (satellite EPIRB) system operating through a low polar-
               orbiting satellite system in the 406 MHz band,” 2004, IBR approved for § 80.1101.

           (9) ITU–R Recommendation M.824–3 (“ITU–R M.824–3”), “Technical Parameters of Radar Beacons
               (RACONS),” with Annexes, 2007, IBR approved for § 80.605.

          (10) ITU–R Recommendation M.1177–3 (“ITU–R M.1177–3”), “Techniques for measurement of unwanted
               emissions of radar systems,” June 2003, IBR approved for §§ 80.273 and 80.1101.

          (11) ITU–R Recommendation M.1371–3 (“ITU–R M.1371–3”), “Technical characteristics for a universal
               shipborne automatic identification system using time division multiple access in the VHF maritime
               mobile band,” with Annexes, 2007, IBR approved for § 80.1101.

          (12) ITU–T Recommendation E.161 (“ITU–T E.161”), “Series E: Overall Network Operation, Telephone
               Service, Service Operation and Human Factors: International Operation-Numbering Plan of the
               International Telephone Service: Arrangement of Digits, Letters and Symbols on Telephones and
               Other Devices that Can Be Used for Gaining Access to a Telephone Network” (02/2001), IBR
               approved for § 80.1101.

          (13) ITU–T Recommendation E.164.1 (“ITU–T E.164.1”), “Series E: Overall Network Operation, Telephone
               Service, Service Operation and Human Factors: International Operation—Numbering Plan of the
               International Telephone Service: Criteria and Procedures for the Reservation, Assignment, and
               Reclamation of E.164 Country Codes and Associated Identification Codes (ICs)” (09/2008), IBR
               approved for § 80.1101.

     (d) The International Electrotechnical Commission (IEC), 3 Rue de Varembe, CH–1211, Geneva 20,
         Switzerland; www.iec.ch; phone: + 41 22 919 02 11; fax: + 41 22 919 03 00; email: info@iec.ch. (IEC
         publications can also be purchased from the American National Standards Institute (ANSI) through its
         NSSN operation (www.nssn.org), at Customer Service, American National Standards Institute, 25 West
         43rd Street, New York NY 10036, telephone (212) 642–4900.)

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           (1) IEC 60092–101:1994 + A1:1995 (“IEC 60092–101”), Edition 4.1, 2002–08, “Electrical installations in
               ships—Part 101: Definitions and general requirements,” IBR approved for § 80.1101.

           (2) IEC 60533:1999(E) (“IEC 60533”), Second edition, 1999–11, “Electrical and electronic installations in
               ships—Electromagnetic compatibility,” IBR approved for § 80.1101.

           (3) IEC 60945:2002 (“IEC 60945”), Fourth edition, 2002–08, “Maritime navigation and
               radiocommunication equipment and systems–General requirements–Methods of testing and
               required test results,” with Annexes, IBR approved for §§ 80.273 and 80.1101.

           (4) IEC 61097–1:2007(E) (“IEC 61097–1”), Second edition, 2007–06, “Global maritime distress and
               safety system (GMDSS)—Part 1: Radar transponder—Marine search and rescue (SART)—Operational
               and performance requirements, methods of testing and required test results,” with Annexes, IBR
               approved for § 80.1101.

           (5) IEC 61097–3:1994 (“IEC 61097–3”), First edition, 1994–06, “Global maritime distress and safety
               system (GMDSS)—Part 3: Digital selective calling (DSC) equipment—Operational and performance
               requirements, methods of testing and required testing results,” with Annexes, IBR approved for §
               80.1101.

           (6) IEC 61097–4 (“IEC 61097–4”), Edition 2.0, 2007–10, “Global maritime distress and safety system
               (GMDSS)—Part 4: INMARSAT–C ship earth station and INMARSAT enhanced group call (EGC)
               equipment—Operational and performance requirements, methods of testing and required test
               results,” IBR approved for § 80.1101.

           (7) IEC 61097–6:2005(E) (“IEC 61097–6”), Second edition, 2005–12, “Global maritime distress and
               safety system (GMDSS)—Part 6: Narrowband direct-printing telegraph equipment for the reception of
               navigational and meteorological warnings and urgent information to ships (NAVTEX),” IBR approved
               for § 80.1101.

           (8) IEC 61097–7:1996 (“IEC 61097–7”), First edition, 1996–10, “Global maritime distress and safety
               system (GMDSS)—Part 7: Shipborne VHF radiotelephone transmitter and receiver—Operational and
               performance requirements, methods of testing and required test results,” IBR approved for §
               80.1101.

           (9) IEC 61097–8:1998(E) (“IEC 61097–8”), First edition, 1998–09, “Global maritime distress and safety
               system (GMDSS)—Part 8: Shipborne watchkeeping receivers for the reception of digital selective
               calling (DSC) in the maritime MF, MF/HF, and VHF bands—Operational and Performance
               Requirements, Methods of Testing and Required Test Results,” with Annexes, IBR approved for §
               80.1101.

          (10) IEC 61097–9:1997(E) (“IEC 61097–9”), First edition, 1997–12, “Global maritime distress and safety
               system (GMDSS)—Part 9: Shipborne transmitters and receivers for use in the MF and HF bands
               suitable for telephony, digital selective calling (DSC) and narrow band direct printing
               (NBDP)—Operational and performance requirements, methods of testing and required test results,”
               with Annexes, IBR approved for § 80.1101.

          (11) IEC 61097–10:1999(E) (“IEC 61097–10”), First edition, 1999–06, “Global maritime distress and
               safety system (GMDSS)—Part 10: INMARSAT–B ship earth station equipment—Operational and
               performance requirements, methods of testing and required test results,” with Annexes, IBR
               approved for § 80.1101.

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          (12) IEC 61097–12:1996(E) (“IEC 61097–12”), First edition, 1996–11, “Global maritime distress and
               safety system (GMDSS)—Part 12: Survival craft portable two-way VHF radiotelephone
               apparatus—Operational and performance requirements, methods of testing and required test
               results,” IBR approved for § 80.1101.

          (13) IEC 61097–13:2003(E) (“IEC 61097–13”), First edition, 2003–05, “Global maritime distress and
               safety system (GMDSS)—Part 13: INMARSAT F77 ship earth station equipment—Operational and
               performance requirements, methods of testing and required test results,” IBR approved for §
               80.1101.

          (14) IEC 61097–14 (“IEC 61097–14”), Edition 1.0, 2010–02, “Global maritime distress and safety system
               (GMDSS)—Part 14: AIS search and rescue transmitter (AIS–SART)—Operational and performance
               requirements, methods of testing and required test results,” IBR approved for § 80.233(a).

          (15) [Reserved]

          (16) IEC 61162–1:2007(E) (“IEC 61162–1”), Third edition, 2007–04, “Maritime navigation and
               radiocommunication equipment and systems—Digital interfaces—Part 1: Single talker and multiple
               listeners,” IBR approved for § 80.1101.

          (17) IEC 61993–2:2001(E) (“IEC 61993–2”), First edition, 2001–12, “Maritime navigation and
               radiocommunication equipment and systems—Automatic identification systems (AIS)—Part 2: Class
               A shipborne equipment of the universal automatic identification system (AIS)—Operational and
               performance requirements, methods of test and required test results,” with Annexes, IBR approved
               for § 80.1101.

          (18) IEC 62238:2003(E) (“IEC 62238”), First edition, 2003–03, “Maritime navigation and
               radiocommunication equipment and systems—VHF radiotelephone equipment incorporating Class
               “D” Digital Selective Calling (DSC)—Methods of testing and required test results,” IBR approved for §
               80.225.

          (19) IEC 62287–1:2006(E) (“IEC 62287–1”), First edition, 2006–03, “Maritime navigation and
               radiocommunication equipment and systems–Class B shipborne equipment of the Automatic
               Identification System–Part 1: Carrier–sense time division multiple access (CSTDMA) techniques,”
               IBR approved for § 80.231.

          (20) IEC 62388 (“IEC 62388”), Edition 1.0, 2007–12, “Maritime navigation and radiocommunication
               equipment and systems–Shipborne radar–Performance requirements, methods of testing and
               required test results,” IBR approved for §§ 80.273 and 80.1101.

     (e) The International Organization for Standardization (ISO), 1, ch. De la Voie-Creuse, CP 56, CH–1211,
         Geneva 20, Switzerland; www.iso.org; Tel.: + 41 22 749 01 11; Fax: + 41 22 733 34 30; email:
         central&iso.org. (ISO publications can also be purchased from the American National Standards Institute
         (ANSI) through its NSSN operation (www.nssn.org), at Customer Service, American National Standards
         Institute, 25 West 43rd Street, New York NY 10036, telephone (212) 642–4900.)

           (1) ISO Standard 3791 (“ISO Standard 3791”), “Office Machines and Data Processing
               Equipment—Keyboard Layouts for Numeric Applications,” First Edition 1976(E), IBR approved for §
               80.1101.

           (2) [Reserved]

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                                                                                                                 47 CFR 80.7(f)
Stations in the Maritime Services

     (f) The Radio Technical Commission for Maritime Services (RTCM), 1611 N. Kent Street, Suite 605, Arlington,
         VA 22209; www.rtcm.org; telephone (703) 527–2000; email information@rtcm.org.

           (1) RTCM Paper 56–95/SC101–STD (“RTCM Paper 56–95/SC101–STD”), “RTCM Recommended
               Minimum Standards for Digital Selective Calling (DSC) Equipment Providing Minimum Distress and
               Safety Capability,” Version 1.0, August 10, 1995, IBR approved for § 80.225.

           (2) RTCM Standard 11000.3 (“RTCM 11000”), “406 MHz Satellite Emergency Position Radiobeacons
               (EPIRBs),” June 12, 2012, IBR approved for § 80.1061(a) and (c).

           (3) RTCM Standard 11020.1 (“RTCM 11020”), “RTCM Standard 11020.1, Ship Security Alert Systems
               (SSAS) Using the Cospas-Sarsat Satellite System,” October 9, 2009, IBR approved for § 80.277.

           (4) RTCM Standard 12301.1 (“RTCM 12301”), “VHF–FM Digital Small Message Services,” July 10, 2009,
               IBR approved for § 80.364(a).

[76 FR 67607, Nov. 2, 2011, as amended at 79 FR 77918, Dec. 29, 2014; 81 FR 90745, 90746, Dec. 15, 2016; 85 FR 64409, Oct. 13,
2020; 88 FR 21449, Apr. 10, 2023]

Subpart B—Applications and Licenses
§ 80.11 Scope.
This subpart contains the procedures and requirements for the filing of applications for licenses to operate radio
facilities in the maritime services. part 1 of the Commission's rules contains the general rules of practice and
procedure applicable to proceedings before the FCC.

§ 80.13 Station license required.
     (a) Except as noted in paragraph (c) of this section, stations in the maritime service must be licensed by the
         FCC either individually or by fleet.

     (b) One ship station license will be granted for operation of all maritime services transmitting equipment on
         board a vessel. Radiotelegraph and narrow-band directing-printing equipment will not be authorized,
         however, unless specifically requested by the applicant.

     (c) A ship station is licensed by rule and does not need an individual license issued by the FCC if the ship
         station is not subject to the radio equipment carriage requirements of any statute, treaty or agreement to
         which the United States is signatory, the ship station does not travel to foreign ports, and the ship station
         does not make international communications. A ship station licensed by rule is authorized to transmit
         radio signals using a marine radio operating in the 156–162 MHz band, any type of AIS, any type of EPIRB,
         and any type of radar installation. All other transmissions must be authorized under a ship station license.
         Even though an individual license is not required, a ship station licensed by rule must be operated in
         accordance with all applicable operating requirements, procedures, and technical specifications found in
         this part.

[61 FR 58010, Nov. 12, 1996, as amended at 62 FR 40304, July 28, 1997; 71 FR 60074, Oct. 12, 2006]

§ 80.15 Eligibility for station license.
     (a) General. A station license cannot be granted to or held by a foreign government or its representative.

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Stations in the Maritime Services

     (b) Public coast stations and Alaska-public fixed stations. A station license for a public coast station or an
         Alaska-public fixed station cannot be granted to or held by:

           (1) Any alien or the representative of any alien;

           (2) Any foreign government or its representative;

           (3) Any corporation organized under the laws of any foreign government;

           (4) Any corporation of which more than one-fifth of the capital stock is owned of record or voted by
               aliens or their representatives or by a foreign government or its representative, or by a corporation
               organized under the laws of a foreign country; or

           (5) Any corporation directly or indirectly controlled by any other corporation of which more than one-
               fourth of the capital stock is owned of record or voted by aliens, their representatives, or by a foreign
               government or its representatives, or by any corporation organized under the laws of a foreign
               country, if the Commission finds that the public interest will be served by the refusal or revocation of
               such license.

     (c) Private coast and marine utility stations. The supplemental eligibility requirements for private coast and
         marine utility stations are contained in § 80.501(a).

     (d) Ship stations. A ship station license may only be granted to:

           (1) The owner or operator of the vessel;

           (2) A subsidiary communications corporation of the owner or operator of the vessel;

           (3) A State or local government subdivision; or

     (e) A 406.0–406.1 MHz EPIRB may be used by any ship required by U.S. Coast Guard regulations to carry an
         EPIRB or by any ship that is equipped with a VHF ship radio station.

[51 FR 31213, Sept. 2, 1986, as amended at 53 FR 37308, Sept. 26, 1988; 58 FR 33344, June 17, 1993; 61 FR 55581, Oct. 28, 1996;
68 FR 46960, Aug. 7, 2003; 69 FR 64671, Nov. 8, 2004; 73 FR 4480, Jan. 25, 2008; 76 FR 67610, Nov. 2, 2011]

§ 80.17 Administrative classes of stations.
     (a) Stations in the Maritime Mobile Service are licensed according to class of station as follows:

           (1) Public coast stations.

           (2) Private coast stations.

           (3) Maritime support stations.

           (4) Ship stations. The ship station license may include authority to operate other radio station classes
               aboard ship such as; radionavigation, on-board, satellite, EPIRB, radiotelephone, radiotelegraph and
               survival craft.

           (5) Marine utility stations.

     (b) Stations on land in the Maritime Radiodetermination Service are licensed according to class of station as
         follows:

           (1) Shore radiolocation stations.

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           (2) Shore radionavigation stations.

     (c) Fixed stations in the Fixed Service associated with the maritime services are licensed as follows:

           (1) Operational fixed stations.

           (2) Alaska-public fixed stations.

           (3) Alaska-private fixed stations.

§ 80.21 Supplemental information required.
Applications must contain supplementary information as indicated in this section. Other supplemental information
may be required by other rule sections of this part concerning particular maritime services.

     (a) Each application for a new public coast station operating on frequencies in the band 156–162 MHz must
         include as supplementary information a chart, with supporting data, showing the service area contour
         computed in accordance with subpart P of this part.

     (b) Each application for a new public coast station operating on frequencies in the band 156–162 MHz to be
         located within the coordination boundaries of “Arrangement “A” of the Canada/U.S.A. Frequency
         Coordination Agreement above 30 MHz”, must comply with the provisions of the “Canada/U.S.A.
         Channeling Agreement for VHF Maritime, Public Correspondence” as contained in § 80.57.

     (c) A new station on a vessel not located in the United States must not be documented or otherwise
         registered by any foreign authority. The foreign authorities where the vessel is located will not or cannot
         license the vessel radio equipment and can not object to the licensing of the equipment by the United
         States. An applicant must provide verification of these facts upon request by the Commission.

[51 FR 31213, Sept. 2, 1986, as amended at 60 FR 50122, Sept. 28, 1995; 62 FR 55533, Oct. 27, 1997; 63 FR 68955, Dec. 14, 1998]

§ 80.25 License term.
     (a) Licenses for ship stations in the maritime services will normally be issued for a term of ten years from the
         date of original issuance, or renewal.

     (b) Licenses other than ship stations in the maritime services will normally be issued for a term of ten years
         from the date of original issuance, major modification, or renewal.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 68062, Dec. 23, 1993; 62 FR 40304, July 28, 1997; 63 FR 40062, July 27, 1998;
63 FR 68955, Dec. 14, 1998; 65 FR 77823, Dec. 13, 2000; 78 FR 25175, Apr. 29, 2013]

§ 80.31 Cancellation of license.
Wireless telecommunications carriers subject to this part must comply with the discontinuance of service
provisions of part 63 of this chapter.

[63 FR 68955, Dec. 14, 1998]

§ 80.37 One authorization for a plurality of stations.
    Marine utility stations. One station license may be issued to authorize a designated maximum number of marine
          utility stations operating at temporary unspecified locations, normally in multiples of ten stations when:

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                                                                               47 CFR 80.37 “Marine utility stations” (a)
Stations in the Maritime Services

           (a) The licensee of each station is the same; and

           (b) The authorized area of operation of each station is the same.

§ 80.39 Authorized station location.
This section describes the circumstances under which a coast station location is classified as permanent or
temporary unspecified.

     (a) Permanent. Whenever a station is to transmit from a single location, the station location is permanent and
         the location must be shown on the application.

     (b) Temporary unspecified. Whenever a station is to transmit from unspecified locations within a prescribed
         geographical area, the station location is temporary unspecified and the proposed geographical operating
         area must be shown on the application.

§ 80.41 Control points and dispatch points.
This section applies to coast or fixed stations at permanent locations.

     (a) Applicants must provide the address or location of the control point where station records will be kept.

     (b) When the address or location of a control point where station records are kept is to be changed, the
         licensee must request a modification of the station license.

     (c) Control points not collocated with station records and dispatch points may be installed and used without
         obtaining any authorization from the Commission.

§ 80.43 Equipment acceptable for licensing.
Transmitters listed in § 80.203 must be authorized for a particular use by the Commission based upon technical
requirements contained in subparts E and F of this part, except for transmitters that are used on vessels in the
Maritime Security Fleet and are deemed to satisfy all Commission equipment certification requirements pursuant to
section 53108(c) of Title 46 of the United States Code.

[73 FR 4480, Jan. 25, 2008]

§ 80.45 Frequencies.
For applications other than ship stations, the applicant must propose frequencies and ensure that those requested
frequencies are consistent with the applicant's eligibility, the proposed class of station operation, and the
frequencies available for assignment as contained in subpart H of this part.

[63 FR 68955, Dec. 14, 1998]

§ 80.47 Operation during emergency.
A station may be used for emergency communications when normal communication facilities are disrupted. The
Commission may order the discontinuance of any such emergency communication service.

§ 80.49 Construction and regional service requirements.
     (a) Public coast stations.

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                                                                                                       47 CFR 80.49(a)(1)
Stations in the Maritime Services

           (1) Each VHF public coast station geographic area licensee must notify the Commission of substantial
               service within its region or service area (subpart P) within five years of the initial license grant, and
               again within ten years of the initial license grant in accordance with § 1.946 of this chapter.
               “Substantial” service is defined as service which is sound, favorable, and substantially above a level
               of mediocre service which just might minimally warrant renewal. For site-based VHF public coast
               station licensees, when a new license has been issued or additional operating frequencies have been
               authorized, the licensee must notify the Commission in accordance with § 1.946 of this chapter that
               the station or frequencies authorized have been placed in operation within twelve months from the
               date of the grant.

           (2) For LF, MF, and HF band public coast station licensees, when a new license has been issued or
               additional operating frequencies have been authorized, if the station or frequencies authorized have
               not been placed in operation within twelve months from the date of grant, the authorization becomes
               invalid and must be returned to the Commission for cancellation.

           (3) Each AMTS coast station geographic area licensee must make a showing of substantial service
               within its service area within ten years of the initial license grant, or the authorization becomes
               invalid and must be returned to the Commission for cancellation. “Substantial” service is defined as
               service which is sound, favorable, and substantially above a level of mediocre service which just
               might minimally warrant renewal. For site-based AMTS coast station licensees, when a new license
               has been issued or additional operating frequencies have been authorized, if the station or
               frequencies authorized have not been placed in operation within two years from the date of the
               grant, the authorization becomes invalid and must be returned to the Commission for cancellation.

     (b) Public fixed stations. When a new license has been issued or additional operating frequencies have been
         authorized, the licensee must notify the Commission in accordance with § 1.946 of this chapter that the
         station or frequencies authorized have been placed in operation within twelve months from the date of the
         grant.

[63 FR 68955, Dec. 14, 1998, as amended at 65 FR 77823, Dec. 13, 2000; 67 FR 48563, July 25, 2002]

§ 80.51 Ship earth station licensing.
A ship earth station must display the Commission license.

[73 FR 4480, Jan. 25, 2008]

§ 80.53 Application for a portable ship station license.
The Commission may grant a license permitting operation of a portable ship station aboard different vessels of the
United States.

[63 FR 68956, Dec. 14, 1998]

§ 80.54 Automated Maritime Telecommunications System (AMTS)—System Licensing.
AMTS licensees will be issued blanket authority for a system of coast stations and mobile units (subscribers).
AMTS applicants will specify the maximum number of mobile units to be placed in operation during the license
period.

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                                                                                                        47 CFR 80.55
Stations in the Maritime Services

[56 FR 3783, Jan. 31, 1991]

§ 80.55 Application for a fleet station license.
     (a) An applicant may apply for licenses for two or more radiotelephone stations aboard different vessels on
         the same application. Under these circumstances a fleet station license may be issued for operation of all
         radio stations aboard the vessels in the fleet.

     (b) The fleet station license is issued on the following conditions:

           (1) The licensee must keep a current list of vessel names and registration numbers authorized by the
               fleet license;

           (2) The vessels do not engage in voyages to any foreign country;

           (3) The vessels are not subject to the radio requirements of the Communications Act or the Safety
               Convention.

§ 80.57 Canada/U.S.A. channeling arrangement for VHF maritime public correspondence.
     (a) Canada/U.S.A. arrangement. Pursuant to arrangements between the United States and Canada,
         assignment of VHF frequencies in the band 156–162 MHz to public coast stations in certain areas of
         Washington state, the Great Lakes and the east coast of the United States must be made in accordance
         with the provisions of this section.

     (b) Definitions. On the west coast, specific terms are defined as follows:

           (1) Inland Waters Public Correspondence Sector. A distinct geographical area in which one primary and
               one supplementary channel is allotted. A number of local channels may also be authorized.

           (2) Coastal Waters Public Correspondence Sector. A distinct geographical area in which one primary and
               one supplementary channel is allotted. Local channels may also be authorized.

           (3) Inland waters. Inland waters of western Washington and British Columbia bounded by 47 degrees
               latitude on the south, the Canada/U.S.A. Coordination Zone Line B on the north, and to the west by
               124 degrees 40 minutes longitude at the west entrance to the Strait of Juan de Fuca.

           (4) Coastal waters. Waters along the Pacific Coast of Washington state and Vancouver Island within the
               Canada/U.S.A. Coordination Zone.

           (5) Inland Waters Primary Channel. A channel intended to cover the greater portion of an Inland Waters
               Public Correspondence Sector. It may provide some coverage to an adjacent sector but must not
               provide coverage beyond the adjacent sector. Harmful interference beyond the adjacent sector must
               not occur. Only one primary channel will be authorized in any sector.

           (6) Inland waters of western Washington and British Columbia bounded by 46°59′59.3″ north latitude on
               the south, the Canada/U.S.A. Coordination Zone Line B on the south, and to the west by 124°40′4.7″
               west latitude at the west entrance to the Strait of Juan de Fuca.

                 Note: All coordinates are referenced to North American Datum 1983 (NAD83).

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                                                                                                     47 CFR 80.57(b)(7)
Stations in the Maritime Services

           (7) Inland Waters Local Channel. A channel designed to provide local coverage of certain bays, inlets and
               ports where coverage by primary or supplementary channels is poor or where heavy traffic loading
               warrants. A local channel must not cause harmful interference to any primary or supplementary
               channels. Coverage must be confined to the designated sector.

           (8) Coastal Waters Primary Channel. Same as (5) except for technical characteristics.

           (9) Coastal Waters Supplementary Channel. Same as (6) except for technical characteristics.

          (10) Coastal Waters Local Channel. Same as (7) except for technical characteristics.

     (c) Technical characteristics. On the west coast, technical characteristics of public correspondence stations
         will be as follows:

           (1) Inland Waters Primary and Supplementary Channels. The effective radiated power (ERP) must not
               exceed 60 watts. Antenna height must not exceed 152 meters (500 feet) above mean sea level
               (AMSL) with the exceptions noted in paragraph (d)(5) of this section.

           (2) Inland Waters Local Channel. ERP must not exceed 8 watts with an antenna height of no more than
               15 meters (50 feet) AMSL or the ERP must not exceed 2 watts with an antenna height of no more
               than 30 meters (100 feet) AMSL.

           (3) Coastal Waters Primary and Supplementary Channels. ERP must not exceed 125 watts with no
               antenna restrictions.

           (4) Coastal Waters Local Channel. ERP must not exceed 10 watts with a maximum antenna height of 76
               meters (250 feet) AMSL.

           (5) Harmful interference will be determined and resolved using the definition and procedures of the ITU
               Radio Regulations.

           (6) To keep the ERP and antenna elevations at a minimum and to limit coverage to the desired areas, an
               informal application may be filed for special temporary authority in accordance with §§ 1.41 and
               1.931 of this chapter to conduct a field survey to obtain necessary data for informal application.
               Such data may accompany the application and be used in lieu of theoretical calculations as required
               in subpart P of this part. The Seattle FCC District Office must be notified in advance of scheduled
               tests.

     (d) Canada/U.S.A. channeling arrangement for West Coast VHF maritime mobile public correspondence.

           (1) The provisions of the Canada/U.S. channeling arrangement apply to waters of the State of
               Washington and of the Province of British Columbia within the coordination boundaries of
               “Arrangement A” of the Canada/U.S.A. Frequency Coordination Agreement above 30 MHz. In
               addition, all inland waters as far south as Olympia are to be included. A map of these waters is
               contained in paragraph (d)(6) of this section, Figure 1.

           (2) The channeling arrangement applies to the following VHF public correspondence channels: Channels
               24, 84, 25, 85, 26, 86, 27, 87 and 28.

           (3) Public correspondence stations may be established by either country in accordance with the
               provisions of the arrangements. However, there must be an exchange of information prior to the
               establishment of new stations or a change in technical parameters of existing stations. Any channel

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                except that used as primary or supplementary channel in a given sector is available for use as a local
                channel in that sector. Local channels are not protected from interference caused by primary or
                supplementary channels in adjacent sectors if these stations are in compliance with this section.

           (4) Preliminary local Canadian/U.S. coordination is required for all applications at variance with this
               section. This coordination will be in accordance with the provisions of Arrangement “A” of the
               Canada/U.S. Frequency Coordination Agreement over 30 MHz. Stations at variance with the
               arrangement are not protected from interference and must not cause interference to existing or
               future stations which are in accordance with the agreement.

           (5) The agreed channeling arrangements for the west coast are as follows:

                          Public correspondence sector           Primary channel          Supplementary channel
                 British Columbia (Coastal Waters):
                      Tofino                                                       24                                26
                      Barkley Sound                                                27                                87
                 British Columbia (Inland Waters)
                      Juan de Fuca West (Canada)                                   26                                24
                      Juan de Fuca East (Canada)                                   86                                84
                                                                                                                      1
                      Gulf Islands                                                 27
                      Strait of Georgia South                                      26                                86
                      Howe Sound                                                   24                                84
                      Strait of Georgia North                                      26                                87
                      Campbell River                                               28                                85
                 Washington (Coastal Waters):
                      Cape Johnson                                                 26                                85
                      Point Grenville                                              28                                25
                 Washington (Inland Waters):
                      Juan de Fuca West (U.S.A.)                                   28                                 1

                                                                                                                      1
                      Juan de Fuca East (U.S.A.)                                   25
                      San Juan Islands                                             28                                85
                      Puget Sound North                                            24                                87
                      Puget Sound Hood Canal                                       26                                25
                      Lower Puget Sound                                            28                                85

                1   Supplementary channel not available.

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     (e) Canada/U.S.A. VHF channeling arrangement on the Great Lakes and the St. Lawrence Seaway. Channels on
         the Great Lakes and the St. Lawrence Seaway will be assigned as follows:

           (1) The provisions of the arrangement apply to the waters of the Great Lakes and the St. Lawrence
               Seaway within the coordination boundaries of “Arrangement A” of the Canada/U.S.A. Frequency
               Coordination Agreement above 30 MHz.

           (2) The arrangement applies to the following public correspondence channels: Channels 24, 84, 25, 85,
               26, 86, 27, 87, 28, and 88.

           (3) Canada and the U.S.A. use the following channeling arrangement:

                 (i)   Canadian channels: 24, 85, 27, 88 (Note 1).

                 (ii) U.S.A. channels: 84, 25, 86, 87, 28 (Note 2).

                (iii) Shared channels: 26 (Note 3).

                       Notes: 1. Also assignable to U.S. Stations within the frequency coordination zone
                       following successful coordination with Canada.
                       2. Also assignable to Canadian station within the frequency coordination zone following
                       successful coordination with the United States.

                       3. Changes to existing assignments and new assignments within the frequency
                       coordination zone of either country are subject to prior coordination with the other
                       Administration.

     (f) Canada/U.S.A. channeling arrangement for East Coast VHF maritime mobile public correspondence. For
         purposes of this section, channels on the east coast will be assigned as follows:

           (1) The provisions of the arrangement apply to the Canadian and U.S.A. east coast waters including the
               St. Lawrence Seaway within the coordination boundaries of “Arrangement A” of the Canada/U.S.A.
               Frequency Coordination Agreement above 30 MHz.

           (2) The arrangement applies to the following public correspondence channels: Channels 24, 84, 25, 85,
               26, 86, 27, 87, 28, and 88.

           (3) Canada and the U.S.A. use the following channeling arrangement:

                 (i)   Canadian channels: 24, 85, 27, 88 (Note 1).

                 (ii) U.S.A. channels: 84, 25, 86, 87, 28 (Note 2).

                (iii) Shared channel: 26 (Note 3).

           Notes: 1. Also assignable to U.S. stations within the frequency coordination zone following
           successful coordination with Canada.
           2. Also assignable to Canadian stations within the frequency coordination zone following
           successful coordination with the United States.

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                                                                                                              47 CFR 80.59
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           3. Changes to existing assignments and new assignments within the frequency coordination zone
           of either country are subject to prior coordination with the other Administration.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 68956, Dec. 14, 1998; 73 FR 4480, Jan. 25, 2008]

§ 80.59 Compulsory ship inspections.
     (a) Inspection of ships subject to part II or III of title III of the Communications Act or the Safety Convention.

           (1) The FCC will not normally conduct the required inspections of ships subject to the inspection
               requirements of part II or III of title III of Communications Act or the Safety Convention.

                 Note to paragraph (a)(1): Nothing in this section prohibits Commission inspectors from
                 inspecting ships. The mandatory inspection of U.S. vessels must be conducted by an FCC-
                 licensed technician holding an FCC General Radiotelephone Operator License, GMDSS Radio
                 Maintainer's License, Second Class Radiotelegraph Operator's Certificate, First Class
                 Radiotelegraph Operator's Certificate, or Radiotelegraph Operator License in accordance with
                 the following table:

                                 Minimum class of FCC license required by private sector technician to
                                                              conduct
                                               inspection—only one license required
                               General
    Category of vessel                      GMDSS         Radiotelegraph operator license     First class
                              radiotele-
                                              radio           (formerly second class        radiotelegraph
                                 phone
                                           maintainer's      radiotelegraph operator's        operator's
                               operator
                                            license                 certificate)              certificate.
                                license
 Radiotelephone equipped √                 √              √                                 √
 vessels subject to 47 CFR
 part 80, subpart R or S
 GMDSS equipped vessels                    √
 subject to 47 CFR part 80,
 subpart W

           (2) A certification that the ship has passed an inspection must be entered into the ship's log by the
               inspecting technician. The technician conducting the inspection and providing the certification must
               not be the vessel's owner, operator, master, or employee or their affiliates. Additionally, the vessel
               owner, operator, or ship's master must certify in the station log that the inspection was satisfactory.
               There are no FCC prior notice requirements for any inspection pursuant to paragraph (a)(1) of this
               section. An inspection of the bridge-to-bridge radio stations on board vessels subject to the Vessel
               Bridge-to-Bridge Radiotelephone Act must be conducted by the same FCC-licensed technician.

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           (3) Additionally, for passenger vessels operated on an international voyage the inspecting technician
               must send a completed FCC Form 806 to the Officer in Charge, Marine Safety Office, United States
               Coast Guard in the Marine Inspection Zone in which the ship is inspected.

           (4) In the event that a ship fails to pass an inspection the inspecting technician must make a log entry
               detailing the reason that the ship did not pass the inspection. Additionally, the technician must notify
               the vessel owner, operator, or ship's master that the vessel has failed the inspection.

           (5) Because such inspections are intended to ensure the availability of communications capability
               during a distress the Commission will vigorously investigate reports of fraudulent inspections, or
               violations of the Communications Act or the Commission's Rules related to ship inspections. FCC-
               licensed technicians, ship owners or operators should report such violations to the Commission
               through its National Call Center at 1–888–CALL FCC (1–888–225–5322).

     (b) Inspection and certification of a ship subject to subpart T of this part. The FCC will not inspect vessels
         that are subject to subpart T of this part. An inspection and certification of a ship subject to subpart T of
         this part must be made by a technician holding one of the following: an FCC General Radiotelephone
         Operator License, a GMDSS Radio Maintainer's License, a Second Class Radiotelegraph Operator's
         Certificate, a First Class Radiotelegraph Operator's Certificate, or a Radiotelegraph Operator License. The
         certification required by § 80.953 must be entered into the ship's log. The technician conducting the
         inspection and providing the certification must not be the vessel's owner, operator, master, or an employee
         of any of them. Additionally, the vessel owner, operator, or ship's master must certify that the inspection
         was satisfactory. There are no FCC prior notice requirements for any inspection under this section.

     (c) Application for exemption.

           (1) Applications for exemption from the radio provisions of part II or III of title III of the Communications
               Act, the Safety Convention, or subpart T of this part, or for modification or renewal of an exemption
               previously granted must be filed as a waiver request using FCC Form 605. Waiver requests must
               include the following information:

                 (i)   Name of ship;

                 (ii) Call sign of ship;

                (iii) Official number of ship;

                (iv) Gross tonnage of ship;

                 (v) The radio station requirements from which the exemption is requested:

                       (A) Radiotelephone (VHF/MF);

                       (B) Radiotelegraph; and/or

                       (C) Radio direction finding apparatus;

                (vi) File number of any previously granted exemption;

                (vii) Detailed description of the voyages for which the exemption is requested, including:

                       (A) Maximum distance from nearest land in nautical miles;

                       (B) Maximum distance between two consecutive ports in nautical miles; and

                       (C) Names of all ports of call and an indication of whether travel will include a foreign port;

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                (viii) Reasons for the exemption:

                       (A) Size of vessel;

                       (B) Variety of radio equipment on board;

                       (C) Limited routes; and/or

                       (D) Conditions of voyages;

                (ix) A copy of the U.S. Coast Guard Certificate of Inspection an indication of whether the vessel is
                     certified as a Passenger or Cargo ship (for passenger ships, list the number of passengers the
                     ship is licensed to carry); and

                 (x) Type and quantity of radio equipment on board, including:

                       (A) VHF Radio Installation (indicate if GMDSS approved);

                       (B) Single Side-Band (SSB) (indicate the band of operation, MF or HF and indicate if GMDSS
                           approved);

                       (C) Category 1, 406 MHz EPIRB (GMDSS approved);

                       (D) NAVTEX Receiver (GMDSS approved);

                       (E) Survival Craft VHF (GMDSS approved);

                       (F) 9 GHz Radar Transponder (GMDSS approved);

                       (G) Ship Earth Station;

                       (H) 2182 Radiotelephone Auto Alarm

                       (I)   Reserve Power Supply (capability); and

                       (J) Any other equipment.

           (2) Feeable applications for exemption must be filed electronically using the Commission's Universal
               Licensing System. Emergency requests must be filed with the Federal Communications
               Commission, Office of the Secretary, located at the address of the FCC's main office indicated in 47
               CFR 0.401(a).

                 Note: With emergency requests, do not send the fee, you will be billed.

     (d) Waiver of annual inspection.

           (1) The Commission may, upon a finding that the public interest would be served, grant a waiver of the
               annual inspection required by Section 362(b) of the Communications Act, 47 U.S.C. 360(b), for a
               period of not more than 90 days for the sole purpose of enabling a United States vessel to complete
               its voyage and proceed to a port in the United States where an inspection can be held. An informal
               application must be submitted by the ship's owner, operator or authorized agent. The application
               must be submitted to the Commission's Wireless Telecommunications Bureau at least three days
               before the ship's arrival. The application must include:

                 (i)   The ship's name and radio call sign;

                 (ii) The name of the first United States port of arrival directly from a foreign port;

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                (iii) The date of arrival;

                (iv) The date and port at which annual inspection will be formally requested to be conducted;

                (v) The reason why an FCC-licensed technician could not perform the inspection; and

                (vi) A statement that the ship's compulsory radio equipment is operable.

           (2) Vessels that are navigated on voyages outside of the United States for more than 12 months in
               succession are exempted from annual inspection required by section 362(b) of the Communications
               Act, provided that the vessels comply with all applicable requirements of the Safety Convention,
               including the annual inspection required by Regulation 9, Chapter I, and the vessel is inspected by an
               FCC-licensed technician in accordance with this section within 30 days of arriving in the United
               States.

[51 FR 31213, Sept. 2, 1986, as amended at 56 FR 64715, Dec. 12, 1991; 60 FR 50122, Sept. 28, 1995; 61 FR 8478, Mar. 5, 1996;
61 FR 25805, May 23, 1996; 63 FR 29658, June 1, 1998; 63 FR 68956, Dec. 14, 1998; 64 FR 53241, Oct. 1, 1999; 68 FR 46960, Aug.
7, 2003; 69 FR 64671, Nov. 8, 2004; 73 FR 9031, Feb. 19, 2008; 78 FR 23154, Apr. 18, 2013; 80 FR 53751, Sept. 8, 2015; 81 FR
90746, Dec. 15, 2016; 85 FR 64409, Oct. 13, 2020; 88 FR 77220, Nov. 9, 2023]

§ 80.60 Partitioned licenses and disaggregated spectrum.
     (a) Except as specified in § 20.15(c) of this chapter with respect to commercial mobile radio service
         providers, charges must not be made for service of:

           (1) VHF Public Coast area licensees, see § 80.371(c)(1)(ii), may partition their geographic service area
               or disaggregate their spectrum pursuant to the procedures set forth in this section.

           (2) AMTS geographic area licensees, see § 80.385(a)(3), may partition their geographic service area or
               disaggregate their spectrum pursuant to the procedures set forth in this section. Site-based AMTS
               public coast station licensees may partition their license or disaggregate their spectrum pursuant to
               the procedures set forth in this section, provided that the partitionee or disaggregatee's predicted 38
               dBu signal level contour does not extend beyond the partitioner or disaggregator's predicted 38 dBu
               signal level contour. The predicted 38 dBu signal level contours shall be calculated using the F(50,
               50) field strength chart for Channels 7–13 in § 73.699 (Fig. 10) of this chapter, with a 9 dB correction
               for antenna height differential.

           (3) Nationwide or multi-region LF, MF, and HF public coast station licensees, see §§ 80.357(b)(1),
               80.361(a), 80.363(a)(2), 80.371(b), and 80.374, may partition their spectrum pursuant to the
               procedures set forth in this section, except that frequencies or frequency pairs licensed to more than
               one licensee as of March 13, 2002 may be partitioned only by the earliest licensee, and only on the
               condition that the partitionee shall operate on a secondary, non-interference basis to stations
               licensed as of March 13, 2002 other than the earliest licensee. Coordination with government users
               is required for partitioning of spectrum the licensing of which is subject to coordination with
               government users.

     (b) Technical standards —

           (1) Partitioning. In the case of partitioning, all requests for authorization for partial assignment of a
               license must include, as an attachment, a description of the partitioned service area. The partitioned
               service area shall be defined by coordinate points at every 3 degrees along the partitioned service
               area unless an FCC-recognized service area is utilized (e.g., Metropolitan Service Area, Rural Service
               Area, or Economic Area) or county lines are used. The geographic coordinates must be specified in
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                degrees, minutes, and seconds to the nearest second of latitude and longitude, and must be based
                upon the 1983 North American Datum (NAD83). In a case where an FCC-recognized service area or
                county lines are utilized, applicants need only list the specific area(s) (through use of FCC
                designations or county names) that constitute the partitioned area.

           (2) Disaggregation. VHF (156–162 MHz) spectrum may only be disaggregated according to frequency
               pairs. AMTS spectrum may be disaggregated in any amount.

           (3) Combined partitioning and disaggregation. The Commission will consider requests for partial
               assignment of licenses that propose combinations of partitioning and disaggregation.

     (c) License term. The license term for a partitioned license area and for disaggregated spectrum shall be the
         remainder of the original licensee's term as provided for in § 80.25 of this part.

     (d) Partitioning and disaggregation construction requirements for site-based AMTS, and nationwide or multi-
         region LF, MF, and HF public coast. Parties seeking to acquire a partitioned license or disaggregated
         spectrum from a site-based AMTS, or nationwide or multi-region LF, MF, and HF public coast licensee will
         be required to construct and commence “service to subscribers” in all facilities acquired through such
         transactions within the original construction deadline for each facility as set forth in § 80.49. Failure to
         meet the individual construction deadline will result in the automatic termination of the facility's
         authorization.

[63 FR 40063, July 27, 1998, as amended at 67 FR 48563, July 25, 2002; 69 FR 64671, Nov. 8, 2004; 82 FR 41548, Sept. 1, 2017]

Subpart C—Operating Requirements and Procedures

                                          STATION REQUIREMENTS—GENERAL

§ 80.61 Commission inspection of stations.
All stations and required station records must be made available for inspection by authorized representatives of the
Commission.

§ 80.63 Maintenance of transmitter power.
     (a) The power of each radio transmitter must not be more than that necessary to carry on the service for
         which the station is licensed.

     (b) Except for transmitters using single sideband and independent sideband emissions, each radio
         transmitter rated by the manufacturer for carrier power in excess of 100 watts must contain the
         instruments necessary to determine the transmitter power during its operation.

                                       STATION REQUIREMENTS—LAND STATIONS

§ 80.67 General facilities requirements for coast stations.
     (a) All coast stations licensed to transmit in the band 156–162 MHz must be able to transmit and receive on
         156.800 MHz and at least one working frequency in the band.

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     (b) All coast stations that operate telephony on frequencies in the 1605–3500 kHz band must be able to
         transmit and receive using J3E emission on the frequency 2182 kHz and at least one working frequency in
         the band.

[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46960, Aug. 7, 2003]

§ 80.68 Facilities requirements for public coast stations using telegraphy.
Public coast station using telegraphy must be provided with the following facilities.

     (a) Stations having a frequency assignment below 150 kHz must:

           (1) Transmit A1A emission on at least one working frequency within the band 100–150 kHz;

           (2) Receive A1A emission on all radio channels authorized for transmission by mobile stations operating
               in the maritime mobile service for telegraphy within the band 100–150 kHz.

     (b) Stations having a frequency assignment within the 405–525 kHz band must transmit and receive on 500
         kHz and at least one working frequency in the band.

     (c) Stations having frequency assignments above 4000 kHz must be equipped to receive on each of their
         assigned frequencies and all ship station radiotelegraphy frequencies in the same sub-band as the
         assigned frequency of the coast station. See subpart H of this part for the list of frequencies.

§ 80.69 Facilities requirement for public coast stations using telephony.
Public coast stations using telephony must be provided with the following facilities.

     (a) When the station is authorized to use frequencies in the 1605–3500 kHz band, equipment meeting the
         requirements of § 80.67(b) must be installed at each transmitting location.

     (b) The transmitter power on the frequency 2182 kHz must not exceed 50 watts carrier power for normal
         operation. During distress, urgency and safety traffic, operation at maximum power is permitted.

§ 80.70 Special conditions relative to coast station VHF facilities.
     (a) Coast stations which transmit on the same radio channel above 150 MHz must minimize interference by
         reducing radiated power, by decreasing antenna height or by installing directional antennas. Coast
         stations at locations separated by less than 241 kilometers (150 miles) which transmit on the same radio
         channel above 150 MHz must also consider a time-sharing arrangement. The Commission may order
         station changes if agreement cannot be reached between the involved licensees.

     (b) Coast stations which transmit on a radio channel above 150 MHz and are located within interference
         range of any station within Canada or Mexico must minimize interference to the involved foreign
         station(s), and must notify the Commission of any station changes.

     (c) A VHF (156–162 MHz) public coast licensee initially authorized on any of the channels listed in the table
         in § 80.371(c)(1), or an AMTS licensee initially authorized on any of the channel blocks listed in the table
         in § 80.385(a)(2), may transfer or assign its channel(s), or channel block(s), to another entity. If the
         proposed transferee or assignee is the geographic area licensee for the geographic area to which the
         frequency block is allocated, such transfer or assignment will be deemed to be in the public interest.
         However, such presumption will be rebuttable.

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                                                                                                          47 CFR 80.71
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[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 40063, July 27, 1998; 67 FR 48564, July 25, 2002]

§ 80.71 Operating controls for stations on land.
Each coast station, Alaska-public fixed station and Alaska-private fixed station must provide operating controls in
accordance with the following:

     (a) Each station using telegraphy or telephony must be capable of changeover from transmission to reception
         and vice versa within two seconds excluding a change in operating radio channel.

     (b) During it hours of service, each station must be capable of:

           (1) Commencing operation within one minute after the need to do so occurs;

           (2) Discontinuing all emission within five seconds after emission is no longer desired. The emission of
               an unattended station in an automated multistation system at which restoration to standby is
               automatic on conclusion of a call must be discontinued within three seconds of the disconnect
               signal or, if a disconnect signal is not received, within twenty seconds after reception of the final
               carrier transmission from a ship station.

     (c) Each station using a multichannel installation for telegraphy must be capable of changing from one
         telegraphy channel to any other telegraphy channel within the same sub-band below 525 kHz within five
         seconds. This requirement need not be met by equipment intended for use only in emergencies and not
         used for normal communication.

     (d) Every coast station using a multi-channel installation for radiotelephony must be capable of changing
         from one telephony channel to another telephony channel within:

           (1) Five seconds within the frequency band 1605–3500 kHz; or

           (2) Three seconds within the band 156–162 MHz. This requirement also applies to marine utility
               stations.

§ 80.72 Antenna requirements for coast stations.
All emissions of a coast station a marine-utility station operated on shore using telephony within the frequency
band 30–200 MHz must be vertically polarized.

§ 80.74 Public coast station facilities for a telephony busy signal.
A “busy” signal, when used by a public coast station in accordance with the provisions of § 80.111(d), must consist
of the transmission of a single audio frequency regularly interrupted, as follows:

     (a) Audio frequency. Not less than 100 nor more than 1100 Hertz, provided the frequency used for this
         purpose will not cause auto alarms or selective-ringing devices to be operated.

     (b) Rate of interruption. 60 times per minute ±10%.

     (c) Duration of each interruption. 0.5 second ±10%.

§ 80.76 Requirements for land station control points.
Each coast or fixed station subject to this part must have the following facilities:

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                                                                                                             47 CFR 80.76(a)
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         (a) Except for marine utility stations, a visual indication of antenna current; or a pilot lamp, meter or
             equivalent device which provides continuous visual indication whenever the transmitter control circuits
             have been actuated.

         (b) Capability to aurally monitor all transmissions originating at dispatch points and to disconnect the
             dispatch points from the transmitter or to terminate the operation of the transmitter.

         (c) Facilities which will permit the responsible operator to turn the carrier of the radio transmitter on and off
             at will.

                                         STATION REQUIREMENTS—SHIP STATIONS

§ 80.79 Inspection of ship station by a foreign Government.
The Governments or appropriate administrations of countries which a ship visits may require the license of the ship
station or ship earth station to be produced for examination. When the license cannot be produced without delay or
when irregularities are observed, Governments or administrations may inspect the radio installations to satisfy
themselves that the installation conforms to the conditions imposed by the Radio Regulations.

§ 80.80 Operating controls for ship stations.
         (a) Each control point must be capable of:

              (1) Starting and discontinuing operation of the station;

              (2) Changing frequencies within the same sub-band;

              (3) Changing from transmission to reception and vice versa.

              (4) In the case of stations operating in the 156–162 MHz bands, reducing power output to one watt or
                  less in accordance with § 80.215(e).[1]

         (b) Each ship station using telegraphy must be capable of changing from telegraph transmission to telegraph
             reception and vice versa without manual switching.

         (c) Each ship station using telephony must be capable of changing from transmission to reception and vice
             versa within two seconds excluding a change in operating radio channel.

         (d) During its hours of service, each ship station must be capable of:

              (1) Commencing operation within one minute;

              (2) Discontinuing all emission within five seconds after emission is no longer desired.

   [1]Ship station transmitters, except hand-held portable transmitters, manufactured after January 21, 1987
   must automatically reduce the carrier power to one watt or less when turned to the frequency 156.375 MHz or
   156.650 MHz. All ship station tramsmitters, except hand-held portable transmitters, used after January 21,
   1997, must automatically reduce power as described above. A manual override device must be provided which
   when held by the operator will permit full carrier power operation on channels 13 and 67. Hand-held portable
   transmitters must be capable of reducing power to one watt, but need not do so automatically.

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     (e) Each ship station using a multi-channel installation for telegraphy (except equipment intended for use only
         in emergencies on frequencies below 515 kHz) must be capable of changing from one radio channel to
         another within:

           (1) Five seconds if the channels are within the same sub-band; or

           (2) Fifteen seconds if the channels are not within the same sub-band.

     (f) Each ship station and marine-utility station using a multi-channel installation for telephony must be
         capable of changing from one radio channel to another within:

           (1) Five seconds within the band 1605–3500 kHz; or

           (2) Three seconds within the band 156–162 MHz.

     (g)

           (1) Any telegraphy transmitter constructed since January 1, 1952, that operates in the band 405–525
               kHz with an output power in excess of 250 watts must be capable of reducing the output power to
               150 watts or less.

           (2) The requirement of paragraph (g)(1) of this section does not apply when there is available in the
               same station a transmitter capable of operation on the international calling frequency 500 kHz and
               at least one working frequency within the band 405–525 kHz, capable of being energized by a
               source of power other than an emergency power source and not capable of an output in excess of
               100 watts when operated on such frequencies.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35244, Sept. 18, 1987]

§ 80.81 Antenna requirements for ship stations.
All telephony emissions of a ship station or a marine utility station on board ship within the frequency band 30–200
MHz must be vertically polarized.

§ 80.83 Protection from potentially hazardous RF radiation.
Any license or renewal application for a ship earth station that will cause exposure to radiofrequency (RF) radiation
in excess of the RF exposure guidelines specified in § 1.1307(b) of the Commission's Rules must comply with the
environmental processing rules set forth in §§ 1.1301–1.1319 of this chapter.

[53 FR 28225, July 27, 1988]

                                          OPERATING PROCEDURES—GENERAL

§ 80.86 International regulations applicable.
In addition to being regulated by these rules, the use and operation of stations subject to this part are governed by
the Radio Regulations and the radio provisions of all other international agreements in force to which the United
States is a party.

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                                                                                                                  47 CFR 80.87
Stations in the Maritime Services

§ 80.87 Cooperative use of frequency assignments.
Each radio channel is available for use on a shared basis only and is not available for the exclusive use of any one
station or station licensee. Station licensees must cooperate in the use of their respective frequency assignments in
order to minimize interference and obtain the most effective use of the authorized radio channels.

§ 80.88 Secrecy of communication.
The station licensee, the master of the ship, the responsible radio operators and any person who may have
knowledge of the radio communications transmitted or received by a fixed, land, or mobile station subject to this
part, or of any radiocommunication service of such station, must observe the secrecy requirements of the
Communications Act and the Radio Regulations. See sections 501, 502, and 705 of the Communications Act and
Article 23 of the Radio Regulations.

§ 80.89 Unauthorized transmissions.
Stations must not:

     (a) Engage in superfluous radiocommunication.

     (b) Use telephony on 243 MHz.

     (c) Use selective calling on 2182 kHz or 156.800 MHz.

     (d) When using telephony, transmit signals or communications not addressed to a particular station or
         stations. This provision does not apply to the transmission of distress, alarm, urgency, or safety signals or
         messages, or to test transmissions.

     (e) Transmit while on board vessels located on land unless authorized under a public coast station license.
         Vessels in the following situations are not considered to be on land for the purposes of this paragraph:

           (1) Vessels which are aground due to a distress situation;

           (2) Vessels in drydock undergoing repairs; and

           (3) State or local government vessels which are involved in search and rescue operations including
               related training exercises.

     (f) Transmit on frequencies or frequency bands not authorized on the current station license.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35244, Sept. 18, 1987; 62 FR 40304, July 28, 1997; 68 FR 46960, Aug. 7, 2003]

§ 80.90 Suspension of transmission.
Transmission must be suspended immediately upon detection of a transmitter malfunction and must remain
suspended until the malfunction is corrected, except for transmission concerning the immediate safety of life or
property, in which case transmission must be suspended as soon as the emergency is terminated.

§ 80.91 Order of priority of communications.
     (a) All stations in the maritime mobile service and the maritime mobile-satellite service shall be capable of
         offering four levels of priority in the following order:

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                                                                                                         47 CFR 80.91(a)(1)
Stations in the Maritime Services

           (1) Distress calls, distress messages, and distress traffic.

           (2) Urgency communications.

           (3) Safety communications.

           (4) Other communications.

     (b) In a fully automated system, where it is impracticable to offer all four levels of priority, category 1 shall
         receive priority until such time as intergovernmental agreements remove exemptions granted for such
         systems from offering the complete order of priority.

[68 FR 46960, Aug. 7, 2003]

§ 80.92 Prevention of interference.
     (a) The station operator must determine that the frequency is not in use by monitoring the frequency before
         transmitting, except for transmission of signals of distress.

     (b) When a radiocommunication causes interference to a communication which is already in progress, the
         interfering station must cease transmitting at the request of either party to the existing communication.
         As between nondistress traffic seeking to commence use of a frequency, the priority is established under
         § 80.91.

     (c) Except in cases of distress, communications between ship stations or between ship and aircraft stations
         must not interfere with public coast stations. The ship or aircraft stations which cause interference must
         stop transmitting or change frequency upon the first request of the affected coast station.

§ 80.93 Hours of service.
     (a) All stations. All stations whose hours of service are not continuous must not suspend operation before
         having concluded all communication required in connection with a distress call or distress traffic.

     (b) Public coast stations.

           (1) Each public coast station whose hours of service are not continuous must not suspend operation
               before having concluded all communication involving messages or calls originating in or destined to
               mobile stations within range and mobile stations which have indicated their presence.

           (2) Unless otherwise authorized by the Commission upon adequate showing of need, each public coast
               station authorized to operate on frequencies in the 3000–23,000 kHz band must maintain
               continuous hours of service.

     (c) Compulsory ship stations.

           (1) Compulsory ship stations whose service is not continuous may not suspend operation before
               concluding all traffic originating in or destined for public coast stations situated within their range
               and mobile stations which have indicated their presence.

           (2) For GMDSS ships, radios shall be turned on and set to proper watch channels while ships are
               underway. If a ship has duplicate GMDSS installations for DSC or INMARSAT, only one of each must
               be turned on and keeping watch.

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                                                                                                          47 CFR 80.93(d)
Stations in the Maritime Services

     (d) Ships voluntarily fitting GMDSS subsystems. For ships voluntarily fitting GMDSS subsystems, radios shall
         be turned on and set to proper watch channels while ships are underway. If ship has duplicate GMDSS
         installations for DSC or INMARSAT, only one of each must be turned on and keeping watch.

     (e) Other than public coast or compulsory ship stations. The hours of service of stations other than those
         described in paragraphs (b), (c), and (d) of this section are determined by the station licensee.

[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46960, Aug. 7, 2003]

§ 80.94 Control by coast or Government station.
When communicating with a coast station or any Government station in the maritime mobile service, ship stations
must comply with the instruction given by the coast station or Government station relative to the order and time of
transmission, the choice of frequency, the suspension of communication and the permissible type of message
traffic that may be transmitted. This provision does not apply in the event of distress.

§ 80.95 Message charges.
     (a) Except as specified in § 20.15(c) of this chapter with respect to commercial mobile radio service
         providers, charges must not be made for service of:

           (1) Any public coast station unless tariffs for the service are on file with the Commission;

           (2) Any station other than a public coast station or an Alaska—public fixed station, except cooperatively
               shared stations covered by § 80.503;

           (3) Distress calls and related traffic; and

           (4) Navigation hazard warnings preceded by the SAFETY signal.

     (b) The licensee of each ship station is responsible for the payment of all charges accruing to any other
         station(s) or facilities for the handling or forwarding of messages or communications transmitted by that
         station.

     (c) In order to be included in the ITU List of Coast Stations public coast stations must recognize international
         Accounting Authority Identification Codes (AAIC) for purposes of billing and accounts settlement in
         accordance with Article 66 of the Radio Regulations. Stations which elect not to recognize international
         AAIC's will be removed from the ITU List of Coast Stations.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35244, Sept. 18, 1987; 69 FR 64671, Nov. 8, 2004]

§ 80.96 Maintenance tests.
Stations are authorized to engage in test transmissions necessary for maintenance of the station. Test
transmissions must conform to appropriate test operating procedures.

§ 80.97 Radiotelegraph operating procedures.
This section applies to ships and coast stations authorized to transmit in the band 405–525 kHz.

     (a) Except for the transmission of distress or urgency signals, all transmissions must cease within the band
         485–515 kHz during each 500 kHz silence period.

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                                                                                                           47 CFR 80.97(b)
Stations in the Maritime Services

     (b) Stations transmitting telegraphy must use the service abbreviations (“Q” code) listed in Appendix 14 to the
         Radio Regulations.

     (c) The call consists of:

           (1) The call sign of the station called, not more than twice; the word “DE” and the call sign of the calling
               station, not more than twice; if useful, the frequency on which the called station should reply; and the
               letter “K”.

           (2) If the call is transmitted twice at an interval of not less than one minute, it must not be repeated until
               after an interval of three minutes.

     (d) The reply to calls consists of: The call sign of the calling station, not more than twice; the word “DE”; and
         the call sign of the station called, once only.

§ 80.98 Radiotelegraph testing procedures.
Stations authorized to use telegraphy may conduct tests on any assigned frequency. Emissions must not cause
harmful interference. When radiation is necessary the radiotelegraph testing procedure described in this paragraph
must be followed:

     (a) The operator must not interfere with transmissions in progress.

     (b) The operator must transmit “IE” (two dots, space, one dot) on the test frequency as a warning that test
         emissions are about to be made.

     (c) If any station transmits “AS” (wait), testing must be suspended. When transmission of “IE” is resumed and
         no response is heard, the test may proceed.

     (d) Test signals composed of a series of “VVV” having a duration of not more than ten seconds, followed by
         the call sign of the testing station will be transmitted. The call sign must be sent clearly at a speed of
         approximately 10 words per minute. This test transmission must not be repeated until a period of at least
         one minute has elapsed.

[69 FR 64671, Nov. 8, 2004]

§ 80.99 Radiotelegraph station identification.
This section applies to coast, ship and survival craft stations authorized to transmit in the band 405–525 kHz.

     (a) The station transmitting radiotelegraph emissions must be identified by its call sign. The call sign must be
         transmitted with the telegraphy emission normally used by the station. The call sign must be transmitted
         at 20 minute intervals when transmission is sustained for more than 20 minutes. When a ship station is
         exchanging public correspondence communications, the identification may be deferred until completion
         of each communication with any other station.

     (b) The requirements of this section do not apply to survival craft stations when transmitting distress signals
         automatically or when operating on 121.500 MHz for radiobeacon purposes.

     (c) Emergency position indicating radiobeacon stations do not require identification.

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                                                                                                          47 CFR 80.100
Stations in the Maritime Services

§ 80.100 Morse code requirement.
The code employed for telegraphy must be the Morse code specified in the Telegraph Regulations annexed to the
International Telecommunication Convention. Pertinent extracts from the Telegraph Regulations are contained in
the “Manual for Use by the Maritime Mobile and Maritime Mobile-Satellite Services” published by the International
Telecommunication Union.

§ 80.101 Radiotelephone testing procedures.
This section is applicable to all stations using telephony except where otherwise specified.

     (a) Station licensees must not cause harmful interference. When radiation is necessary or unavoidable, the
         testing procedure described below must be followed:

           (1) The operator must not interfere with transmissions in progress.

           (2) The testing station's call sign, followed by the word “test”, must be announced on the radio-channel
               being used for the test.

           (3) If any station responds “wait”, the test must be suspended for a minimum of 30 seconds, then repeat
               the call sign followed by the word “test” and listen again for a response. To continue the test, the
               operator must use counts or phrases which do not conflict with normal operating signals, and must
               end with the station's call sign. Test signals must not exceed ten seconds, and must not be repeated
               until at least one minute has elapsed. On the frequency 2182 kHz or 156.800 MHz, the time between
               tests must be a minimum of five minutes.

     (b) Testing of transmitters must be confined to single frequency channels on working frequencies. However,
         2182 kHz and 156.800 MHz may be used to contact ship or coast stations as appropriate when signal
         reports are necessary. Short tests on 4125 kHz are permitted by vessels equipped with MF/HF radios to
         evaluate the compatibility of the equipment for distress and safety purposes. U.S. Coast Guard stations
         may be contacted on 2182 kHz or 156.800 MHz for test purposes only when tests are being conducted by
         Commission employees, when FCC-licensed technicians are conducting inspections on behalf of the
         Commission, when qualified technicians are installing or repairing radiotelephone equipment, or when
         qualified ship's personnel conduct an operational check requested by the U.S. Coast Guard. In these cases
         the test must be identified as “FCC” or “technical.”

     (c) Survival craft transmitter tests must not be made within actuating range of automatic alarm receivers.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 29659, June 1, 1998; 68 FR 46961, Aug. 7, 2003]

§ 80.102 Radiotelephone station identification.
This section applies to all stations using telephony which are subject to this part.

     (a) Except as provided in paragraphs (d) and (e) of this section, stations must give the call sign in English.
         Identification must be made:

           (1) At the beginning and end of each communication with any other station.

           (2) At 15 minute intervals when transmission is sustained for more than 15 minutes. When public
               correspondence is being exchanged with a ship or aircraft station, the identification may be deferred
               until the completion of the communications.

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                                                                                                              47 CFR 80.102(b)
Stations in the Maritime Services

     (b) Private coast stations located at drawbridges and transmitting on the navigation frequency 156.650 MHz
         may identify by use of the name of the bridge in lieu of the call sign.

     (c) Ship stations transmitting on any authorized VHF bridge-to-bridge channel may be identified by the name
         of the ship in lieu of the call sign.

     (d) Ship stations operating in a vessel traffic service system or on a waterway under the control of a U.S.
         Government agency or a foreign authoriy, when communicating with such an agency or authority may be
         identified by the name of the ship in lieu of the call sign, or as directed by the agency or foreign authority.

     (e) Voice traffic in the INMARSAT system is closed to other parties except the two stations involved and the
         identification is done automatically with the establishment of the call. Therefore, it is not necessary for
         these stations to identify themselves periodically during the communication. For terrestrial systems using
         DSC to establish radiotelephone communications, the identification is made at the beginning of the call.
         In these cases, both parties must identify themselves by ship name, call sign or MMSI at least once every
         15 minutes during radiotelephone communications.

     (f) VHF public coast stations licensed to serve a predetermined geographic service area are not required to
         provide station identification under this section. A site-based VHF public coast station may identify by
         means of the approximate geographic location of the station or the area it serves when it is the only VHF
         public coast station serving the location or there will be no conflict with the identification of any other
         station.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35244, Sept. 18, 1987; 68 FR 46961, Aug. 7, 2003; 69 FR 64671, Nov. 8, 2004]

§ 80.103 Digital selective calling (DSC) operating procedures.
     (a) Operating procedures for the use of DSC equipment in the maritime mobile service are as contained in
         ITU–R M.541–9 (incorporated by reference, see § 80.7), and subpart W of this part.

     (b) When using DSC techniques, coast stations and ship stations must use maritime mobile service identities
         (MMSI) assigned by the Commission or its designees.

     (c) DSC acknowledgment of DSC distress and safety calls must be made by designated coast stations and
         such acknowledgment must be in accordance with procedures contained in ITU–R M.541–9
         (incorporated by reference, see § 80.7). Nondesignated public and private coast stations must follow the
         guidance provided for ship stations in ITU–R M.541–9 (incorporated by reference, see § 80.7), with
         respect to DSC “Acknowledgment of distress calls” and “Distress relays.” (See subpart W of this part.)

     (d) Group calls to vessels under the common control of a single entity are authorized. A group call identity
         may be created from an MMSI ending in a zero, assigned to this single entity, by deleting the trailing zero
         and adding a leading zero to the identity.

[68 FR 46961, Aug. 7, 2003, as amended at 73 FR 4480, Jan. 25, 2008; 76 FR 67610, Nov. 2, 2011]

§ 80.104 Identification of radar transmissions not authorized.
This section applies to all maritime radar transmitters except radar beacon stations.

     (a) Radar transmitters must not transmit station identification.

     (b) [Reserved]

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                                                                                                           47 CFR 80.105
Stations in the Maritime Services

                                      OPERATING PROCEDURES—LAND STATIONS

§ 80.105 General obligations of coast stations.
Each coast station or marine-utility station must acknowledge and receive all calls directed to it by ship or aircraft
stations. Such stations are permitted to transmit safety communication to any ship or aircraft station. VHF
(156–162 MHz) and AMTS (216–220 MHz) public coast stations may provide fixed or hybrid services on a co-
primary basis with mobile operations.

[65 FR 77824, Dec. 13, 2000]

§ 80.106 Intercommunication in the mobile service.
     (a) Each public coast station must exchange radio communications with any ship or aircraft station at sea;
         and each station on shipboard or aircraft at sea must exchange radio communications with any other
         station on shipboard or aircraft at sea or with any public coast station.

     (b) Each public coast station must acknowledge and receive all communications from mobile stations
         directed to it, transmit all communications delivered to it which are directed to mobile stations within
         range in accordance with their tariffs. Discrimination in service is prohibited.

§ 80.107 Service of private coast stations and marine-utility stations.
A private coast station or a marine-utility station is authorized to transmit messages necessary for the private
business and operational needs of ships and the safety of aircraft.

§ 80.108 Transmission of traffic lists by coast stations.
     (a) Each coast station is authorized to transmit lists of call signs in alphabetical order of all mobile stations
         for which they have traffic on hand. These traffic lists will be transmitted on the station's normal working
         frequencies at intervals of:

           (1) In the case of telegraphy, at least two hours and not more than four hours during the working hours
               of the coast station.

           (2) In the case of radiotelephony, at least one hour and not more than four hours during the working
               hours of the coast station.

     (b) The announcement must be as brief as possible and must not be repeated more than twice. Coast
         stations may announce on a calling frequency that they are about to transmit call lists on a specific
         working frequency.

§ 80.109 Transmission to a plurality of mobile stations by a public coast station.
Group calls to vessels under the common control of a single entity and information for the general benefit of
mariners including storm warnings, ordinary weather, hydrographic information and press materials may be
transmitted by a public coast station simultaneously to a plurality of mobile stations.

47 CFR 80.109 (enhanced display)                                                                           page 51 of 268
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                                                                                                           47 CFR 80.110
Stations in the Maritime Services

§ 80.110 Inspection and maintenance of antenna structure markings and associated control
equipment.
The owner of each antenna structure required to be painted and/or illuminated under the provisions of Section
303(q) of the Communications Act of 1934, as amended, shall operate and maintain the antenna structure painting
and lighting in accordance with part 17 of this chapter. In the event of default by the owner, each licensee or
permittee shall be individually responsible for conforming to the requirements pertaining to antenna structure
painting and lighting.

[61 FR 4368, Feb. 6, 1996]

§ 80.111 Radiotelephone operating procedures for coast stations.
This section applies to all coast stations using telephony which are subject to this part.

     (a) Limitations on calling.

           (1) Except when transmitting a general call to all stations for announcing or preceding the transmission
               of distress, urgency, or safety messages, a coast station must call the particular station(s) with
               which it intends to communicate.

           (2) Coast stations must call ship stations by voice unless it is known that the particular ship station may
               be contacted by other means such as automatic actuation of a selective ringing or calling device.

           (3) Coast stations may be authorized emission for selective calling on each working frequency.

           (4) Calling a particular station must not continue for more than one minute in each instance. If the called
               station does not reply, that station must not again be called for two minutes. When a called station
               does not reply to a call sent three times at intervals of two minutes, the calling must cease for fifteen
               minutes. However, if harmful interference will not be caused to other communications in progress,
               the call may be repeated after three minutes.

           (5) A coast station must not attempt to communicate with a ship station that has specifically called
               another coast station until it becomes evident that the called station does not answer, or that
               communication between the ship station and the called station cannot be carried on because of
               unsatisfactory operating conditions.

           (6) Calls to establish communication must be initiated on an available common working frequency when
               such a frequency exists and it is known that the called ship maintains a simultaneous watch on the
               common working frequency and the appropriate calling frequency(ies).

     (b) Time limitation on calling frequency. Transmissions by coast stations on 2182 kHz or 156.800 MHz must
         be minimized and any one exchange of communications must not exceed one minute in duration.

     (c) Change to working frequency. After establishing communications with another station by call and reply on
         2182 kHz or 156.800 MHz coast stations must change to an authorized working channel for the
         transmission of messages.

     (d) Use of busy signal. A coast station, when communicating with a ship station which transmits to the coast
         station on a radio channel which is a different channel from that used by the coast station for
         transmission, may transmit a “busy” signal whenever transmission from the ship station is being received.
         The characteristics of the “busy” signal are contained in § 80.74.

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                                                                                                           47 CFR 80.114
Stations in the Maritime Services

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35244, Sept. 18, 1987]

                                       OPERATING PROCEDURES—SHIP STATIONS

§ 80.114 Authority of the master.
     (a) The service of each ship station must at all times be under the ultimate control of the master, who must
         require that each operator or such station comply with the Radio Regulations in force and that the ship
         station is used in accordance with those regulations.

     (b) These rules are waived when the vessel is under the control of the U.S. Government.

§ 80.115 Operational conditions for use of associated ship units.
     (a) Associated ship units may be operated under a ship station authorization. Use of an associated ship unit
         is restricted as follows;

           (1) It must only be operated on the safety and calling frequency 156.800 MHz or 156.525 MHz or on
               commercial or noncommercial VHF intership frequencies appropriate to the class of ship station
               with which it is associated.

           (2) Except for safety purposes, it must only be used to communicate with the ship station with which it
               is associated or with associated ship units of the same ship station. Such associated ship units may
               be used from shore only adjacent to the waterway (such as on a dock or beach) where the ship is
               located. Communications from shore must relate to the operational and business needs of the ship
               including the transmission of safety information, and must be limited to the minimum practicable
               transmission time.

           (3) It must be equipped to transmit on the frequency 156.800 MHz or 156.525 MHz and at least one
               appropriate intership frequency.

           (4) Calling must occur on the frequency 156.800 MHz or 156.525 MHz unless calling and working on an
               intership frequency has been prearranged.

           (5) Power is limited to one watt.

           (6) The station must be identified by the call sign of the ship station with which it is associated and an
               appropriate unit designator.

     (b) State or local government vehicles used to tow vessels involved in search and rescue operations are
         authorized to operate on maritime mobile frequencies as associated ship units. Such operations must be
         in accordance with paragraph (a) of this section, except that the associated ship unit: May be operated
         from shore; may use Distress, Safety and Calling, Intership Safety, Liaison, U.S. Coast Guard, or Maritime
         Control VHF intership frequencies; and may have a transmitter power of 25 watts.

[51 FR 31213, Sept. 2, 1986, as amended at 81 FR 90746, Dec. 15, 2016]

§ 80.116 Radiotelephone operating procedures for ship stations.
     (a) Calling coast stations.

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                                                                                                      47 CFR 80.116(a)(1)
Stations in the Maritime Services

           (1) Use by ship stations of the frequency 2182 kHz for calling coast stations and for replying to calls
               from coast stations is authorized. However, such calls and replies should be on the appropriate ship-
               shore working frequency.

           (2) Use by ship stations and marine utility stations of the frequency 156.800 MHz for calling coast
               stations and marine utility stations on shore, and for replying to calls from such stations, is
               authorized. However, such calls and replies should be made on the appropriate ship-shore working
               frequency.

     (b) Calling ship stations.

           (1) Except when other operating procedure is used to expedite safety communication, ship stations,
               before transmitting on the intership working frequencies 2003, 2142, 2638, 2738, or 2830 kHz, must
               first establish communications with other ship stations by call and reply on 2182 kHz. Calls may be
               initiated on an intership working frequency when it is known that the called vessel maintains a
               simultaneous watch on the working frequency and on 2182 kHz.

           (2) Except when other operating procedures are used to expedite safety communications, the frequency
               156.800 MHz must be used for call and reply by ship stations and marine utility stations before
               establishing communication on one of the intership working frequencies. Calls may be initiated on
               an intership working frequency when it is known that the called vessel maintains a simultaneous
               watch on the working frequency and on 156.800 MHz.

     (c) Change to working frequency. After establishing communication with another station by call and reply on
         2182 kHz or 156.800 MHz stations on board ship must change to an authorized working frequency for the
         transmission of messages.

     (d) Limitations on calling. Calling a particular station must not continue for more than 30 seconds in each
         instance. If the called station does not reply, the station must not again be called until after an interval of
         2 minutes. When a called station called does not reply to a call sent three times at intervals of 2 minutes,
         the calling must cease and must not be renewed until after an interval of 15 minutes; however, if there is
         no reason to believe that harmful interference will be caused to other communications in progress, the
         call sent three times at intervals of 2 minutes may be repeated after a pause of not less than 3 minutes. In
         event of an emergency involving safety, the provisions of this paragraph do not apply.

     (e) Limitations on working. Any one exchange of communications between any two ship stations on 2003,
         2142, 2638, 2738, or 2830 kHz or between a ship station and a private coast station on 2738 or 2830 kHz
         must not exceed 3 minutes after the stations have established contact. Subsequent to such exchange of
         communications, the same two stations must not again use 2003, 2142, 2638, 2738, or 2830 kHz for
         communication with each other until 10 minutes have elapsed.

     (f) Transmission limitation on 2182 kHz and 156.800 MHz. To facilitate the reception of distress calls, all
         transmissions on 2182 kHz and 156.800 MHz (channel 16) must be minimized and transmissions on
         156.800 MHz must not exceed 1 minute.

     (g) Limitations on commercial communication. On frequencies in the band 156–162 MHz, the exchange of
         commercial communication must be limited to the minimum practicable transmission time. In the
         conduct of ship-shore communication other than distress, stations on board ship must comply with
         instructions given by the private coast station or marine utility station on shore with which they are
         communicating.

[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46961, Aug. 7, 2003]

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                           47 CFR 80.121
Stations in the Maritime Services

                                   SPECIAL PROCEDURES—PUBLIC COAST STATIONS

§ 80.121 Public coast stations using telegraphy.
     (a) Narrow-band direct-printing (NB-DP) operating procedures.

           (1) When both terminals of the NB-DP circuit are satisfied that the circuit is in operable condition, the
               message preamble must be transmitted in the following format:

                 (i)   One carriage return and one line feed,

                (ii) Serial number or number of the message,

                (iii) The name of the office of origin,

                (iv) The number of words,

                (v) The date of handing in of the message,

                (vi) The time of handing in of the message, and

                (vii) Any service instructions. (See The ITU “Manual for Use by the Maritime Mobile and Maritime
                      Mobile-Satellite Services”.)

           (2) Upon completion of transmission of the preamble, the address, text and signature must be
               transmitted as received from the sender.

           (3) Upon completion of transmission of the signature the coast station must, following the signal “COL”,
               routinely repeat all service indications in the address and for figures or mixed groups of letters,
               figures or signs in the address, text or signature.

           (4) In telegrams of more than 50 words, routine repetition must be given at the end of each page.

           (5) Paragraphs (a) (1) through (4) of this section need not be followed when a direct connection is
               employed.

           (6) In calling ship stations by narrow-band direct-printing, the coast station must use the ship station
               selective calling number (5 digits) and its assigned coast station identification number (4 digits).
               Calls to ship stations must employ the following format: Ship station selective call number, repeated
               twice; “DE”, sent once; and coast station identification number, repeated twice. When the ship station
               does not reply to a call sent three times at intervals of two minutes, the calling must cease and must
               not be renewed until after an interval of fifteen minutes.

           (7) A public coast station authorized to use NB-DP frequencies between 4000 kHz and 27500 kHz may
               use class A1A emission on the “mark” frequency for station identification and for establishing
               communications with ship stations. The radio station license must reflect authority for this type of
               operation, and harmful interference must not be caused.

     (b) Watch on ship calling frequencies.

           (1) Public coast stations using telegraphy must maintain a continuous watch during their working hours
               for calls from ship stations on frequencies in the same band(s) in which the coast station is licensed
               to operate. See subpart H of this part.

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                                                                                                      47 CFR 80.121(b)(2)
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           (2) Such station must employ receivers which are capable of being accurately set to any designated
               calling frequency in each band for which the receiver is intended to operate. The time required to set
               the receiver to a frequency must not exceed five seconds. The receiver must have a long term
               frequency stability of not more than 50 Hz and a minimum sensitivity of two microvolts across
               receiver input terminals of 50 ohms, or equivalent. The audio harmonic distortion must not exceed
               five percent at any rated output power.

     (c) Radiotelegraph frequencies. Radiotelegraph frequencies available for assignment to public coast stations
         are contained in subpart H of this part.

§ 80.122 Public coast stations using facsimile and data.
Facsimile operations are a form of telegraphy for the transmission and receipt of fixed images between authorized
coast and ship stations. Facsimile and data techniques may be implemented in accordance with the following
paragraphs.

     (a) Supplemental Eligibility Requirements. Public coast stations are eligible to use facsimile and data
         techniques with ship stations.

     (b) Assignment and use of frequencies.

           (1) Frequencies in the 2000–27500 kHz bands in part 2 of this chapter as available for shared use by the
               maritime mobile service and other radio services are assignable to public coast stations for
               providing facsimile communications with ship stations. Additionally, frequencies in the 156–162
               MHz and 216–220 MHz bands available for assignment to public coast stations for radiotelephone
               communications that are contained in subpart H of this part are also available for facsimile and data
               communications.

           (2) Equipment used for facsimile and data operations is subject to the applicable provisions of subpart E
               of this part.

           (3) The use of voice on frequencies authorized for facsimile operations in the bands 2000–27500 kHz
               listed in subpart H of this part is limited to setup and confirmation of receipt of facsimile
               transmissions.

[57 FR 43407, Sept. 21, 1992, as amended at 67 FR 48564, July 25, 2002]

§ 80.123 Service to stations on land.
Marine VHF public coast stations, including AMTS coast stations, may provide service to stations on land in
accordance with the following:

     (a) The public coast station licensee must provide each associated land station with a letter, which shall be
         presented to authorized FCC representatives upon request, acknowledging that the land station may
         operate under the authority of the associated public coast station's license:

     (b) Each public coast station serving stations on land must afford priority to marine-originating
         communications through any appropriate electrical or mechanical means.

     (c) Land station identification shall consist of the associated public coast station's call sign, followed by a
         unique numeric or alphabetic unit identifier;

47 CFR 80.123(c) (enhanced display)                                                                       page 56 of 268
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                                                                                                       47 CFR 80.123(d)
Stations in the Maritime Services

     (d) Radio equipment used on land must be certified for use under part 22, part 80, or part 90 of this chapter.
         Such equipment must operate only on the public correspondence channels authorized for use by the
         associated public coast station;

     (e) Transmitter power shall be in accordance with the limits set in § 80.215 for ship stations and antenna
         height shall be limited to 6.1 meters (20 feet) above ground level;

     (f) Land stations may only communicate with public coast stations and must remain within radio range of
         associated public coast stations; and,

     (g) The land station must cease operation immediately upon written notice by the Commission to the
         associated public coast station that the land station is causing harmful interference to marine
         communications.

[62 FR 40304, July 28, 1997, as amended at 72 FR 31194, June 6, 2007; 73 FR 4480, Jan. 25, 2008]

                                   SPECIAL PROCEDURES—PRIVATE COAST STATIONS

§ 80.131 Radioprinter operations.
Radioprinter operations provide a relatively low cost system of record communications between authorized coast
and ship stations in accordance with the following paragraphs.

     (a) Supplementary eligibility requirement. A radioprinter authorization for a private coast station may be
         issued to the owner or operator of a ship of less than 1600 gross tons, a community of ships all of which
         are less than 1600 gross tons, or an association whose members operate ships of less than 1600 gross
         tons.

     (b) Scope of communications. Only those communications which concern the business and operational
         needs of vessels are authorized.

     (c) Assignment and use of frequencies.

           (1) Frequencies may be assigned to private coast stations for radioprinter use from the appropriate
               bands listed in subpart H of this part.

           (2) Frequencies in the listed bands are shared with other radio services including the maritime mobile
               service. Each assigned frequency is available on a shared use basis only, not for the exclusive use of
               any one station or licensee.

     (d) Coast station responsibilities.

           (1) Private coast stations must propose frequencies and provide the names of ships to be served with
               the application.

           (2) Private coast station licensees must provide copies of their license to all ships with which they are
               authorized to conduct radioprinter operations.

§ 80.133 Private coast stations using facsimile in Alaska.
Facsimile techniques may be implemented in accordance with the following paragraphs.

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                                                                                                      47 CFR 80.133(a)
Stations in the Maritime Services

     (a) Private coast stations in Alaska are eligible to use facsimile techniques with associated ship stations and
         other private coast stations in accordance with § 80.505(b).

     (b) The frequency 156.425 MHz is assigned by rule to private coast stations in Alaska for facsimile
         transmissions.

     (c) Equipment used for facsimile operations is subject to the applicable provisions of subpart E of this part.

[62 FR 40305, July 28, 1997]

                                         SPECIAL PROCEDURES—SHIP STATIONS

§ 80.141 General provisions for ship stations.
     (a) Points of communication. Ship stations and marine utility stations on board ships are authorized to
         communicate with any station in the maritime mobile service.

     (b) Service requirements for all ship stations.

           (1) Each ship station must receive and acknowledge all communications which are addressed to the
               ship or to any person on board.

           (2) Every ship, on meeting with any direct danger to the navigation of other ships such as ice, a derelict
               vessel, a tropical storm, subfreezing air temperatures associated with gale force winds causing
               severe icing on superstructures, or winds of force 10 or above on the Beaufort scale for which no
               storm warning has been received, must transmit related information to ships in the vicinity and to the
               authorities on land unless such action has already been taken by another station. All such radio
               messages must be preceded by the safety signal.

           (3) A ship station may accept communications for retransmission to any other station in the maritime
               mobile service. Whenever such messages or communications have been received and
               acknowledged by a ship station for this purpose, that station must retransmit the message as soon
               as possible.

     (c) Service requirements for vessels. Each ship station provided for compliance with Part II of Title III of the
         Communications Act must provide a public correspondence service on voyages of more than 24 hours for
         any person who requests the service. Compulsory radiotelephone ships must provide this service for at
         least four hours daily. The hours must be prominently posted at the principal operating location of the
         station.

     (d) Operating conditions. Effective August 1, 1994, VHF hand-held, portable transmitters used while
         connected to an external power source or a ship antenna must be equipped with an automatic timing
         device that deactivates the transmitter and reverts the transmitter to the receive mode after an
         uninterrupted transmission period of five minutes, plus or minus 10 percent. Additionally, such
         transmitters must have a device that indicates when the automatic timer has deactivated the transmitter.
         See also § 80.203(c).

[51 FR 31213, Sept. 2, 1986, as amended at 56 FR 57988, Nov. 15, 1991; 68 FR 46961, Aug. 7, 2003]

§ 80.142 Ships using radiotelegraphy.
     (a) Calling by narrow-band direct-printing.

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                                                                                                            47 CFR 80.142(a)(1)
Stations in the Maritime Services

           (1) NB-DP ship stations must call United States public coast stations on frequencies designated for NB-
               DP operation.

           (2) Where it is known that the coast station maintains a watch on working frequencies for ship station
               NB-DP calls the ship station must make its initial NB-DP call on those frequencies.

           (3) Calls to a coast station or other ship station must employ the following format: Coast station
               identification number, repeated twice; “DE”, sent once; and ship station selective call number,
               repeated twice. When the coast station does not reply to a call sent three times at intervals of two
               minutes, the calling must cease for fifteen minutes.

     (b) NB–DP operating procedure. The operation of NB–DP equipment in the maritime mobile service must be
         in accordance with the operating procedures contained in ITU–R M.492–6 (incorporated by reference, see
         § 80.7).

     (c) Required channels for radiotelegraphy.

           (1) Each ship station using telegraphy on frequencies within the band 405–525 kHz must be capable of:

                 (i)   Transmit on at least two working frequencies and receive on all other frequencies necessary for
                       their service using authorized emissions, and

                (ii) When a radiotelegraph installation is compulsory, a fourth frequency within this band which is
                     authorized specifically for direction finding must also be provided.

           (2) Each ship station using telegraphy on frequencies within the band 90–160 kHz must be capable of
               transmitting and receiving Class A1A emission on the frequency 143 kHz, and on at least two
               additional working frequencies within this band except that portion between 140 kHz and 146 kHz.

           (3) Each ship station using telegraphy and operating in the bands between 4000–27500 kHz must be
               capable of transmitting and receiving Class A1A or J2A emission on at least one frequency
               authorized for calling and at least two frequencies authorized for working in each of the bands for
               which facilities are provided to carry on its service.

           (4) Each ship station using telegraphy in Region 2 on frequencies within the band 2065–2107 kHz must
               be capable of transmitting and receiving Class A1A or J2A emission on at least one frequency in this
               band authorized for working in addition to a frequency in this hand authorized for calling.

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 49993, Dec. 4, 1989; 68 FR 46961, Aug. 7, 2003; 69 FR 64672, Nov. 8, 2004; 76
FR 67610, Nov. 2, 2011]

§ 80.143 Required frequencies for radiotelephony.
     (a) Except for compulsory vessels, each ship radiotelephone station licensed to operate in the band
         1605–3500 kHz must be able to receive and transmit J3E emission on the frequency 2182 kHz. Ship
         stations are additionally authorized to receive and transmit H3E emission for communications with
         foreign coast stations and with vessels of foreign registry. If the station is used for other than safety
         communications, it must be capable also of receiving and transmitting the J3E emission on at least two
         other frequencies in that band. However, ship stations which operate exclusively on the Mississippi River
         and its connecting waterways, and on high frequency bands above 3500 kHz, need be equipped with 2182
         kHz and one other frequency within the band 1605–3500 kHz.

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                                                                                                              47 CFR 80.143(b)
Stations in the Maritime Services

     (b) Except as provided in paragraph (c) of this section, at least one VHF radiotelephone transmitter/receiver
         must be able to transmit and receive on the following frequencies:

           (1) The distress, safety and calling frequency 156.800 MHz;

           (2) The primary intership safety frequency 156.300 MHz;

           (3) One or more working frequencies; and

           (4) All other frequencies necessary for its service.

     (c) Where a ship ordinarily has no requirement for VHF communications, handheld VHF equipment may be
         used solely to comply with the bridge-to-bridge navigational communication requirements contained in
         subpart U of this part.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35244, Sept. 18, 1987; 68 FR 46961, Aug. 7, 2003]

§ 80.145 [Reserved]

                                       SHIPBOARD GENERAL PURPOSE WATCHES

§ 80.146 [Reserved]
§ 80.147 Watch on 2182 kHz.
Ship stations must maintain a watch on 2182 kHz as prescribed by § 80.304.

[68 FR 46962, Aug. 7, 2003]

§ 80.148 Watch on 156.8 MHz (Channel 16).
Each compulsory vessel, while underway, must maintain a watch for radiotelephone distress calls on 156.800 MHz
whenever such station is not being used for exchanging communications. For GMDSS ships, 156.525 MHz is the
calling frequency for distress, safety, and general communications using digital selective calling and the watch on
156.800 MHz is provided so that ships not fitted with DSC will be able to call GMDSS ships, thus providing a link
between GMDSS and non-GMDSS compliant ships. The watch on 156.800 MHz is not required:

     (a) Where a ship station is operating only with handheld bridge-to-bridge VHF radio equipment under §
         80.143(c) of this part; or

     (b) For vessels subject to the Bridge-to-Bridge Act and participating in a Vessel Traffic Service (VTS) system
         when the watch is maintained on both the bridge-to-bridge frequency and a separately assigned VTS
         frequency.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 16504, Mar. 29, 1993; 68 FR 46962, Aug. 7, 2003; 73 FR 4480, Jan. 25, 2008; 76
FR 67611, Nov. 2, 2011]

                                                        VIOLATIONS

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                                                                                                          47 CFR 80.149
Stations in the Maritime Services

§ 80.149 Answer to notice of violation.
     (a) Any person receiving official notice of violation of the terms of the Communications Act, any legislative
         act, executive order, treaty to which the United States is a party, terms of a station or operator license, or
         the rules and regulations of the Federal Communications Commission must within 10 days from such
         receipt, send a written answer, in duplicate, to the office of the Commission originating the official notice.
         If an answer cannot be sent or an acknowledgment made within such 10-day period by reason of illness
         or other unavoidable circumstances, acknowledgment and answer must be made at the earliest
         practicable date with a satisfactory explanation of the delay. The answer to each notice must be complete
         in itself and must not be abbreviated by references to other communications or answers to other notices.
         The answer must contain a full explanation of the incident involved and must set forth the action taken to
         prevent a continuation or recurrence. If the notice relates to lack of attention to or improper operation of
         the station or to log or watch discrepancies, the answer must give the name and license number of the
         licensed operator on duty.

     (b) When an official notice of violation, impending violation, or discrepancy, pertaining to any provision of Part
         II of Title III of the Communications Act or the radio provisions of the Safety Convention, is served upon
         the master or person responsible for a vessel and any instructions appearing on such document issued
         by a representative of the Commission are at variance with the content of paragraph (a) of this section,
         the instructions issued by the Commission's representative supersede those set forth in paragraph (a) of
         this section.

Subpart D—Operator Requirements
§ 80.151 Classification of operator licenses and endorsements.
     (a) Commercial radio operator licenses issued by the Commission are classified in accordance with the Radio
         Regulations of the International Telecommunication Union.

     (b) The following licenses are issued by the Commission. The international classification of each license, if
         different from the license name, is given in parentheses. The listed alphanumeric designators are the
         codes by which the licenses are identified in the Commission's Universal Licensing System.

           (1) RR. Restricted Radiotelephone Operator Permit (radiotelephone operator's restricted certificate).

           (2) RL. Restricted Radiotelephone Operator Permit-Limited Use.

           (3) MP. Marine Radio Operator Permit (radiotelephone operator's restricted certificate).

           (4) PG. General Radiotelephone Operator License (radiotelephone operator's general certificate).

           (5) DO. GMDSS Radio Operator's License (General Operator's Certificate).

           (6) RG. Restricted GMDSS Radio Operator's License (Restricted Operator's Certificate).

           (7) DM. GMDSS Radio Maintainer's License.

           (8) DB. GMDSS Radio Operator/Maintainer License.

           (9) T3. Third Class Radiotelegraph Operator's Certificate (radiotelegraph operator's special certificate).

           (9) T–3. Third Class Radiotelegraph Operator's Certificate (radiotelegraph operator's special certificate).
               Beginning May 20, 2013, no applications for new Third Class Radiotelegraph Operator's Certificates
               will be accepted for filing.

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                                                                                                            47 CFR 80.151(b)(10)
Stations in the Maritime Services

          (10) T–2. Second Class Radiotelegraph Operator's Certificate. Beginning May 20, 2013, no applications for
               new Second Class Radiotelegraph Operator's Certificates will be accepted for filing.

          (11) T–1. First Class Radiotelegraph Operator's Certificate. Beginning May 20, 2013, no applications for
               new First Class Radiotelegraph Operator's Certificates will be accepted for filing.

          (12) T. Radiotelegraph Operator License.

     (c) The following license endorsements are affixed by the Commission to provide special authorizations or
         restrictions. Applicable licenses are given in parentheses.

           (1) Ship Radar endorsement (First Class Radiotelegraph Operator's Certificate, Second Class
               Radiotelegraph Operator's Certificate, Radiotelegraph Operator License, General Radiotelephone
               Operator License).

           (2) Six Months Service endorsement (First Class Radiotelegraph Operator's Certificate, Second Class
               Radiotelegraph Operator's Certificate, Radiotelegraph Operator License).

           (3) Restrictive endorsements; relating to physical disabilities, English language or literacy waivers, or
               other matters (all licenses).

[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46962, Aug. 7, 2003; 76 FR 67611, Nov. 2, 2011; 78 FR 23155, Apr. 18, 2013]

                                       COAST STATION OPERATOR REQUIREMENTS

§ 80.153 Coast station operator requirements.
     (a) Except as provided in § 80.179, operation of a coast station transmitter must be performed by a person
         who is on duty at the control point of the station. The operator is responsible for the proper operation of
         the station.

     (b) An operational fixed station associated with a coast station may be operated by the operator of the
         associated coast station.

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 10008, Mar. 9, 1989; 54 FR 40058, Sept. 29, 1989; 62 FR 40305, July 28, 1997;
67 FR 48564, July 25, 2002]

                                        SHIP STATION OPERATOR REQUIREMENTS

§ 80.155 Ship station operator requirements.
Except as provided in §§ 80.177 and 80.179, operation of transmitters of any ship station must be performed by a
person holding a commercial radio operator license or permit of the class required below. The operator is
responsible for the proper operation of the station.

[54 FR 10008, Mar. 9, 1989]

§ 80.156 Control by operator.
The operator on board ships required to have a holder of a commercial operator license or permit on board may, if
authorized by the station licensee or master, permit an unlicensed person to modulate the transmitting apparatus
for all modes of communication except Morse code radiotelegraphy.
47 CFR 80.156 (enhanced display)                                                                                 page 62 of 268
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                                                                                                         47 CFR 80.157
Stations in the Maritime Services

[51 FR 34984, Oct. 1, 1986]

§ 80.157 Radio officer defined.
A radio officer means a person holding a First Class Radiotelegraph Operator's Certificate, Second Class
Radiotelegraph Operator's Certificate, or Radiotelegraph Operator License issued by the Commission, who is
employed to operate a ship radio station in compliance with Part II of Title III of the Communications Act. Such a
person is also required to be licensed as a radio officer by the U.S. Coast Guard when employed to operate a ship
radiotelegraph station.

[81 FR 90746, Dec. 15, 2016]

§ 80.159 Operator requirements of Title III of the Communications Act and the Safety
Convention.
     (a) Each telegraphy passenger ship equipped with a radiotelegraph station in accordance with Part II of Title
         III of the Communications Act must carry two radio officers holding a First Class Radiotelegraph
         Operator's Certificate, Second Class Radiotelegraph Operator's Certificate, or Radiotelegraph Operator
         License.

     (b) Each cargo ship equipped with a radiotelegraph station in accordance with Part II of Title III of the
         Communications Act and which has a radiotelegraph auto alarm must carry a radio officer holding a First
         Class Radiotelegraph Operator's Certificate, Second Class Radiotelegraph Operator's Certificate, or
         Radiotelegraph Operator License who has had at least six months service as a radio officer on board U.S.
         ships. If the radiotelegraph station does not have an auto alarm, a second radio officer who holds a First
         Class Radiotelegraph Operator's Certificate, Second Class Radiotelegraph Operator's Certificate, or
         Radiotelegraph Operator License must be carried.

     (c) Each cargo ship equipped with a radiotelephone station in accordance with Part II of Title III of the
         Communications Act must carry a radio operator who meets the following requirements:

           (1) Where the station power does not exceed 1500 watts peak envelope power, the operator must hold a
               marine radio operator permit or higher class license.

           (2) Where the station power exceeds 1500 watts peak envelope power, the operator must hold a general
               radiotelephone radio operator license or higher class license.

     (d) Each passenger ship equipped with a GMDSS installation in accordance with subpart W of this part shall
         carry at least two persons holding an appropriate GMDSS Radio Operator License or, if the passenger ship
         operates exclusively within twenty nautical miles of shore, at least two persons holding either a GMDSS
         Radio Operator License or a Restricted GMDSS Radio Operator License, as specified in § 13.7 of this
         chapter.

     (e) Each ship transporting more than six passengers for hire equipped with a radiotelephone station in
         accordance with Part III of Title III of the Communications Act must carry a radio operator who meets the
         following requirements:

           (1) Where the station power does not exceed 250 watts carrier power or 1500 watts peak envelope
               power, the radio operator must hold a marine radio operator permit or higher class license.

           (2) Where the station power exceeds 250 watts carrier power or 1500 watts peak envelope power, the
               radio operator must hold a general radiotelephone operator license or higher class license.

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                                                                                                                  47 CFR 80.161
Stations in the Maritime Services

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 40058, Sept. 29, 1989; 68 FR 46962, Aug. 7, 2003; 78 FR 23155, Apr. 18, 2013;
81 FR 90746, Dec. 15, 2016]

§ 80.161 Operator requirements for subpart T vessels on the Great Lakes.
Each ship subject to subpart T of this part must have on board an officer or member of the crew who holds a marine
radio operator permit or higher class license.

[88 FR 77220, Nov. 9, 2023]

§ 80.163 Operator requirements of the Bridge-to-Bridge Act.
Each ship subject to the Bridge-to-Bridge Act must have on board a radio operator who holds a restricted
radiotelephone operator permit or higher class license.

§ 80.165 Operator requirements for voluntary stations.

                                   Minimum Operator License

 Ship Morse telegraph                                                                                T.
 Ship direct-printing telegraph                                                                      MP.
 Ship telephone, with or without DSC, more than 250 watts carrier power or 1,000 watts peak          PG.
 envelope power
 Ship telephone, with or without DSC, not more than 250 watts carrier power or 1,000 watts peak      MP.
 envelope power
 Ship telephone, with or without DSC, not more than 100 watts carrier power or 400 watts peak
 envelope power
      Above 30 MHz                                                                                   None.1
      Below 30 MHz                                                                                   RP.
      Ship earth station                                                                             RP.

1   RP required for compulsory ships and international voyages.

[76 FR 67611, Nov. 2, 2011, as amended at 78 FR 23155, Apr. 18, 2013]

                                          GENERAL OPERATOR REQUIREMENTS

§ 80.167 Limitations on operators.
The operator of maritime radio equipment other than T–1, T–2, T, or G licensees must not:

       (a) Make equipment adjustments which may affect transmitter operation;

       (b) Operate any transmitter which requires more than the use of simple external switches or manual
           frequency selection or transmitters whose frequency stability is not maintained by the transmitter itself.

[51 FR 31213, Sept. 2, 1986, as amended at 78 FR 23155, Apr. 18, 2013

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                                                                                                           47 CFR 80.169
Stations in the Maritime Services

§ 80.169 Operators required to adjust transmitters or radar.
     (a) All adjustments of radio transmitters in any radiotelephone station or coincident with the installation,
         servicing, or maintenance of such equipment which may affect the proper operation of the station, must
         be performed by or under the immediate supervision and responsibility of a person holding a First Class
         Radiotelegraph Operator's Certificate, Second Class Radiotelegraph Operator's Certificate, Radiotelegraph
         Operator License, or General Radiotelephone Operator License.

     (b) Only persons holding a First Class Radiotelegraph Operator's Certificate, Second Class Radiotelegraph
         Operator's Certificate, or Radiotelegraph Operator License must perform such functions at radiotelegraph
         stations transmitting Morse code.

     (c) Only persons holding an operator certificate containing a ship radar endorsement must perform such
         functions on radar equipment.

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 40058, Sept. 29, 1989; 78 FR 23155, Apr. 18, 2013]

§ 80.175 Availability of operator licenses.
All operator licenses required by this subpart must be readily available for inspection.

§ 80.177 When operator license is not required.
     (a) No radio operator authorization is required to operate:

           (1) A shore radar, a shore radiolocation, maritime support or shore radionavigation station;

           (2) A survival craft station or an emergency position indicating radio beacon;

           (3) A ship radar station if:

                 (i)   The radar frequency is determined by a nontunable, pulse type magnetron or other fixed tuned
                       device, and

                (ii) The radar is capable of being operated exclusively by external controls;

           (4) An on board station; or

           (5) A ship station operating in the VHF band on board a ship voluntarily equipped with radio and sailing
               on a domestic voyage.

     (b) No radio operator license is required to install a VHF transmitter in a ship station if the installation is made
         by, or under the supervision of, the licensee of the ship station and if modifications to the transmitter
         other than front panel controls are not made.

     (c) No operator license is required to operate coast telephone stations or marine utility stations.

     (d) No radio operator license is required to install a radar station on a voluntarily equipped ship when a
         manual is included with the equipment that provides step-by-step instructions for the installation,
         calibration, and operation of the radar. The installation must be made by, or under the supervision of, the
         licensee of that ship station and no modifications or adjustments other than to the front panel controls
         are to be made to the equipment.

[51 FR 31213, Sept. 2, 1986, as amended at 53 FR 41434, Oct. 28, 1987; 62 FR 40305, July 28, 1997]

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                                                                                                      47 CFR 80.179
Stations in the Maritime Services

§ 80.179 Unattended operation.
The following unattended transmitter operations are authorized:

     (a) EPIRB operations when emergency conditions preclude attendance of the EPIRB transmitter by a person.

     (b) Automatic use of a transmitter during narrow-band direct-printing (NB-DP) operations in accordance with
         § 80.219.

     (c) Automatic use of a transmitter during selective calling operations in accordance with § 80.225.

     (d) Automatic use of a transmitter when operating as part of the Automated Maritime Telecommunications
         System (AMTS), an automated multi-station system for which provisions are contained in this part, or an
         automated public coast station.

     (e) Automatic use of a VHF transmitter to send brief digital communications relating to the condition or
         safety of vessels while moored when all of the following conditions are met:

           (1) The equipment must be using DSC in accordance with ITU–R M.493–13 and ITU–R M.541–9 (both
               incorporated by reference, see § 80.7), as modified by this section.

           (2) Sensors must automatically activate the transmitter only under one or more of the following
               conditions:

                 (i)   Fire, explosion;

                (ii) Flooding;

                (iii) Collision;

                (iv) Grounding;

                (v) Listing, in danger of capsizing;

                (vi) Sinking;

                (vii) Disabled and adrift; and

                (viii) Undesignated condition related to ship safety.

           (3) The “ROUTINE” DSC category must be used.

           (4) Communications must be selectively addressed to an individual station.

           (5) Transmitter output power must not exceed one watt.

           (6) The call must employ a fixed format and must be in conformity with Recommendation 493 as
               follows:

          Format specifier: Individual call—symbol 120 sent twice.

          Address: 9 digit maritime mobile service identity of called station.

          Category: Routine—symbol 100.

          Self-identification: 9 digit ship station identity.

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          Message 1: Telecommand symbol 126 sent twice.

          Message 2: Telecommand symbol 126 sent 6 times.

          End of sequence: Symbol 127.

          Error-check character: Check sum.

           (7) Such transmissions are permitted only on channel 70 and the transmitter must be inhibited
               automatically whenever there is another call in progress on Channel 70.

           (8) The call sequence for any one alarm must not be repeated until after an interval of at least five
               seconds. Further repetition is permitted only after intervals of at least fifteen minutes each.
               Repetitions following fifteen-minute waiting intervals must not exceed three.

[54 FR 10008, Mar. 9, 1989, as amended at 62 FR 40305, July 28, 1997; 68 FR 46962, Aug. 7, 2003; 73 FR 4481, Jan. 25, 2008; 76
FR 67611, Nov. 2, 2011]

Subpart E—General Technical Standards
§ 80.201 Scope.
This subpart gives the general technical requirements for the use of frequencies and equipment in the maritime
services. These requirements include standards for equipment authorization, frequency tolerance, modulation,
emission, power and bandwidth.

§ 80.203 Authorization of transmitters for licensing.
     (a) Each transmitter authorized in a station in the maritime services after September 30, 1986, except as
         indicated in paragraphs (g), (h) and (i) of this section, must be certified by the Commission for part 80
         operations. The procedures for certification are contained in part 2 of this chapter. Transmitters of a
         model that have received equipment authorization before October 1, 1986 will be considered acceptable
         for use in ship or coast stations as appropriate.

     (b) The external controls, of maritime station transmitters capable of operation in the 156–162 MHz band
         and manufactured in or imported into the United States after August 1, 1990, or sold or installed after
         August 1, 1991, must provide for selection of only maritime channels for which the maritime station is
         authorized. Such transmitters must not be capable of being programmed by station operators using
         external controls to transmit on channels other than those programmed by the manufacturer, service or
         maintenance personnel.

           (1) Any manufacturer procedures and special devices for programming must only be made available to
               service companies employing licensed service and maintenance personnel that meet the
               requirements of § 80.169(a) and must not be made available with information normally provided to
               consumers.

           (2) The channels preprogrammed by manufacturers, service and maintenance personnel for selection by
               the external controls of a maritime station transmitter must be limited to those channels listed in
               this part and the duplex channels listed in Appendix 18 of the international Radio Regulations. The

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                duplex channels listed in Appendix 18 of the international Radio Regulations must be used only in
                the specified duplex mode. Simplex operations on Appendix 18 duplex channels that are not in
                accordance with this part are prohibited.

           (3) Except as provided in paragraph (b)(4) of this section, programming of authorized channels must be
               performed only by a person holding a First Class Radiotelegraph Operator's Certificate, Second Class
               Radiotelegraph Operator's Certificate, Radiotelegraph Operator License, or General Radiotelephone
               Operator License using any of the following procedures:

                 (i)   Internal adjustments of the transmitter;

                (ii) Use of controls normally inaccessible to the station operator;

                (iii) Use of external devices or equipment modules made available only to service and maintenance
                      personnel through a service company; and

                (iv) Copying of a channel selection program directly from another transmitter (cloning) using
                     devices and procedures made available only to service and maintenance personnel through a
                     service company.

           (4) Notwithstanding paragraph (b)(3) of this section, authorized channels may be programmed via
               computerized remote control by any person, provided that the remote control operation is designed
               to preclude the programming of channels not authorized to the licensee.

           (5) VHF maritime radio station transmitters capable of being programmed by station operators by
               means of external controls that are installed in a maritime station by August 1, 1991, are authorized
               for use indefinitely at the same maritime station.

     (c) All VHF ship station transmitters that are either manufactured in or imported into the United States, on or
         after August 1, 1993, or are initially installed on or after August 1, 1994, must be equipped with an
         automatic timing device that deactivates the transmitter and reverts the transmitter to the receive mode
         after an uninterrupted transmission period of five minutes, plus or minus 10 per cent. Additionally, such
         transmitters must have a device that indicates when the automatic timer has deactivated the transmitter.
         VHF ship station transmitters initially installed before August 1, 1994, are authorized for use indefinitely at
         the same maritime station. VHF hand-held, portable transmitters are not required to comply with the
         requirements in paragraph (c) of this section except when used as described in § 80.141.

     (d) Except for radar equipment, applicants for certification of radio equipment designed to satisfy Part II of
         Title III of the Communications Act or the Safety Convention must also submit with their application a
         working unit of the type for which certification is desired. Manufacturers of radar equipment intended for
         installation on voluntarily equipped ships by persons without FCC operators license must include with
         their equipment authorization application a manual that provides step-by-step procedures for the
         installation, calibration, and operation of the radar stations.

     (e) [Reserved]

     (f) Transmitters certified for single sideband suppressed carrier radiotelephone transmissions may be used
         for facsimile transmissions without filing for a certification modification provided the transmitters retain
         certification and comply with the applicable standards in this part.

     (g) Manufacturers of ship earth station transmitters intended for use in the INMARSAT space segment are
         subject to Supplier's Declaration of Conformity pursuant to the procedures given in subpart J of part 2 of
         this chapter. Such equipment must be approved in accordance with the technical requirements provided

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           by INMARSAT and must be type approved by INMARSAT for use in the INMARSAT space segment. The
           ship earth station input/output parameters, the data obtained when the equipment is integrated in system
           configuration and the pertinent method of test procedures that are used for type approval of the station
           model which are essential for the compatible operation of that station in the INMARSAT space segment
           must be disclosed by the manufacturer upon request of the FCC. Witnessing of the type approval tests
           and the disclosure of the ship earth station equipment design or any other information of a proprietary
           nature will be at the discretion of the ship earth station manufacturer.

           Note 1 to paragraph (g): The verification procedure has been replaced by Supplier's Declaration of
           Conformity. Equipment previously authorized under subpart J of part 2 of this chapter may remain
           in use. See § 2.950 of this chapter.

     (h) In addition to the certification requirements contained in part 2 of this chapter, applicants for certification
         of 406.0–406.1 MHz radiobeacons must also comply with the certification procedures contained in §
         80.1061 of this part.

     (i)   Certification is not required for U.S. Government furnished transmitters to fulfill a U.S. Government
           contract. However, such transmitters must comply with all technical requirements in this part.

     (j)   [Reserved]

     (k) Certification of individual radio transmitters requested by station applicants or licensees must also follow
         the certification procedure in paragraph (a) of this section. However, operation of such transmitters must
         be limited to the specific units individually identified on the station authorization.

     (l)   Ship station transmitters may be certified for emissions not shown in § 80.205. However, such emissions
           are not authorized for use in the United States or for communications with U.S. coast stations.

     (m) Ship station MF, HF, and VHF transmitters may employ external or internal devices to send synthesized
         voice transmissions for distress and safety purposes on any distress and safety frequency authorized for
         radiotelephony listed in § 80.369 provided the following requirements are met:

           (1) The technical characteristics of the distress transmissions must comply with this part.

           (2) A transmitter and any internal device capable of transmitting a synthesized voice message must be
               certified as an integral unit.

           (3) The synthesized voice distress transmission must begin with the words “this is a recording” and
               should be comprised of at least:

                 (i)   the radiotelephone distress call as described in § 80.315(b) and the ship's position as described
                       in § 80.316(c); or

                (ii) the radiotelephone distress message as described in § 80.316(b). If available, the ship's
                     position should be reported as described in § 80.316(c).

           (4) Such transmission must be initiated manually by an off-switch that is protected from inadvertent
               activation and must cause the transmitter to switch to an appropriate distress and safety frequency.
               The radiotelephone distress call and message described in §§ 80.203(m)(3) (i) and (ii), respectively,
               may be repeated. However, the entire transmission including repeats must not exceed 45 seconds
               from beginning to end. Upon ending the transceiver must return to the receive mode and must not be

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                  capable of sending the synthesized distress call for at least thirty seconds. Placing the switch to the
                  off position must stop the distress transmission and permit the transmitter to be used to send and
                  receive standard voice communications.

           (5) Use of the microphone must cause the synthesized voice distress transmission to cease and allow
               the immediate use of the transmitter for sending and receiving standard voice communications.

           (6) No ship station shall include any device or provision capable of transmitting any tone or signal on a
               distress frequency for any purpose unless specific provisions exist in this part authorizing such tone
               or signal.

     (n) Applications for certification of all marine radio transmitters operating in the 2–27.5 MHz band or the
         156–162 MHz band received on or after June 17, 1999, must have a DSC capability in accordance with §
         80.225. This requirement does not apply to transmitters used with AMTS or hand-held portable
         transmitters.

     (o) Existing equipment that does not comply with the rules in this subpart but was properly authorized as
         compliant with the rules in effect at the time of its authorization, and remains compliant with the rules in
         effect at the time of its authorization, may continue to be installed until February 1, 2003.

     (p) Applicable July 14, 2017, the Commission no longer accepts applications for certification of non-AIS VHF
         radios that include channels 75 and 76.

[51 FR 31213, Sept. 2, 1986]

Editorial Note: For FEDERAL REGISTER citations affecting § 80.203, see the List of CFR Sections Affected, which
appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

§ 80.205 Bandwidths.
     (a) An emission designator shows the necessary bandwidth for each class of emission of a station except
         that in ship earth stations it shows the occupied or necessary bandwidth, whichever is greater. The
         following table gives the class of emission and corresponding emission designator and authorized
         bandwidth:

                   Class of emission          Emission designator               Authorized bandwidth (kHz)
            A1A                                               160HA1A                                           0.4
            A1B1                                              160HA1B                                           0.4
            A1D12                                             16K0A1D                                         20.0
            A2A                                               2K66A2A                                           2.8
            A2B1                                              2K66A2B                                           2.8
            A2D12                                             16K0A2D                                         20.0
            A3E                                               6K00A3E                                           8.0
            A3N2                                              2K66A3N                                           2.8
            A3X3                                              3K20A3X                                         25.0
            F1B4                                              280HF1B                                           0.3
            F1B5                                              300HF1B                                           0.5
            F1B6                                              16KOF1B                                         20.0

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                     Class of emission        Emission designator              Authorized bandwidth (kHz)
           F1C                                                2K80F1C                                         3.0
                  12
           F1D                                                16K0F1D                                        20.0
                 6
           F2B                                                16KOF2B                                        20.0
           F2C7                                               16KOF2C                                        20.0
           F2D12                                              16K0F2D                                        20.0
           F3C                                                2K80F3C                                         3.0
                  7
           F3C                                                16KOF3C                                        20.0
           F3E8                                               16KOF3E                                        20.0
                  9
           F3N                                               20MOF3N                                   20,000.0
                  12
           G1D                                               16K0G1D                                         20.0
                  12
           G2D                                               16K0G2D                                         20.0
           G3D10                                             16KOG3D                                         20.0
           G3E8                                              16KOG3E                                         20.0
           G3N3 13                                           16KOG3N                                         20.0
           H2A                                               1K40H2A                                          2.8
           H2B1                                              1K40H2B                                          2.8
           H3E11                                              2K80H3E                                         3.0
           H3N                                               2K66H3N                                          2.8
           J2A                                                160HJ2A                                         0.4
           J2B4                                               280HJ2B                                         0.3
           J2B5                                               300HJ2B                                         0.5
           J2B                                                2K80J2B                                         3.0
           J2C                                                2K80J2C                                         3.0
           J2D14                                              2K80J2D                                         3.0
           J3C                                                2K80J3C                                         3.0
           J3E11                                              2K80J3E                                         3.0
           J3N                                               160HJ3N                                          0.4
           NON                                                      NON                                       0.4
           PON                                                      (12)                                      (12)
           R3E11                                              2K80R3E                                         3.0

           1 On 500 kHz and 2182 kHz A1B, A2B, H2B and J2B emissions indicate transmission of the auto
           alarm signals.

           2   Applicable only to transmissions in the 405–525 kHz band for direction finding.

           3   Applicable only to EPIRB's.

           4   Radioprinter transmissions for communications with private coast stations.

           5   NB-DP radiotelegraph and data transmissions for communications with public coast stations.

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           6Applicable only to radioprinter and data in the 156–162 MHz band and radioprinter in the
           216–220 MHz band.

           7   Applicable only to facsimile in the 156–162 MHz and 216–220 MHz bands.

           8Applicable only when maximum frequency deviation is 5 kHz. See also paragraph (b) of this
           section.

           9
               Applicable only to marine hand-held radar.

           10   Applicable only to on-board frequencies for maneuvering or navigation.

           11Transmitters approved prior to December 31, 1969, for emission H3E, J3E and R3E and an
           authorized bandwidth of 3.5 kHz may continue to be operated. These transmitters will not be
           authorized in new installations.

           12Applicable to radiolocation and associated telecommand ship stations operating on 154.585
           MHz, 159.480 MHz, 160.725 MHz. 160.785 MHz, 454.000 MHz, and 459.000 MHz; emergency
           position indicating radiobeacons operating in the 406.000–406.1000 MHz frequency bank; and
           data transmissions in the 156–162 MHz band.

           13   [Reserved]

           14   The information is contained in multiple very low level subcarriers.

     (b) For land stations the maximum authorized frequency deviation for F3E or G3E emission is as follows:

           (1) 5 kHz in the 72.0–73.0 MHz, 75.4–76.0 MHz and 156–162 MHz bands;

           (2) 15 kHz for stations which were authorized for operation before December 1, 1961, in the 73.0–74.6
               MHz band.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 7418, Mar. 11, 1987; 53 FR 37308, Sept. 26, 1988; 56 FR 11516, Mar. 19, 1991;
57 FR 43407, Sept. 21, 1992; 58 FR 33344, June 17, 1993; 59 FR 7714, Feb. 16, 1994; 62 FR 40305, July 28, 1997; 63 FR 36606,
July 7, 1998; 68 FR 46962, Aug. 7, 2003; 76 FR 67611, Nov. 2, 2011]

§ 80.207 Classes of emission.
     (a) Authorization to use radiotelephone and radiotelegraph emissions by ship and coast stations includes the
         use of digital selective calling and selective calling techniques in accordance with § 80.225.

     (b) In radiotelegraphy communications employing a modulated carrier the carrier must be keyed and
         modulated by an audio frequency.

     (c) Authorization to use single sideband emission is limited to emitting a carrier;

           (1) For full carrier transmitters at a power level between 3 and 6 dB below peak envelope power;

           (2) For suppressed carrier transmitters at a power level at least 40 dB below peak envelope power; and

           (3) For reduced or variable level carrier:

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                   (i)   In the 1600–4000 kHz band:

                          (A) For coast station transmitters 18±2 dB below peak envelope power;

                          (B) For ship station transmitters installed before January 2, 1982, 16±2 dB below peak
                              envelope power; and

                          (C) For ship station transmitters installed after January 1, 1982, 18±2 dB below peak envelope
                              power.

                  (ii) In the 4000–27500 kHz band:

                          (A) For coast station transmitters 18±2 dB below peak envelope power;

                          (B) For ship station transmitters installed before January 2, 1978, 16±2 dB below peak
                              envelope power; and

                          (C) For ship station transmitters installed after January 1, 1978, 18±2 dB below peak envelope
                              power.

     (d) The authorized classes of emission are as follows:

                         Types of stations                               Classes of emission
                          Ship   Stations1
 Radiotelegraphy:
    100–160 kHz                                             A1A.
    405–525 kHz                                             A1A, J2A.
 1615–27500 kHz:
    Manual15 16 17                                          A1A, J2A, J2B, J2D.
    DSC6                                                    F1B, J2B.
    NB–DP14 16                                              F1B, J2B, J2D.
    Facsimile                                               F1C, F3C, J2C, J3C.
    156–162     MHz2                                        F1B, F2B, F2C, F3C, F1D, F2D.
    DSC                                                     G2B.
    216–220     MHz3                                        F1B, F2B, F2C, F3C.
    1626.5–1646.5 MHz                                       (4).
 Radiotelephony:
    1615–27500 kHz16                                        H3E, J2D, J3E, R3E.
    27.5–470    MHz6                                        G3D, G3E.
    1626.5–1646.5 MHz                                       (4).
 Radiodetermination:
    285–325 kHz7                                            A1A, A2A.
    405–525 kHz (Direction        Finding)8                 A3N, H3N, J3N, NON.
    154–459     MHz:12                                      A1D, A2D, F1D, F2D, G1D, G2D.
    2.4–9.5 GHz                                             PON.
                          Land   Stations1
 Radiotelegraphy:

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                         Types of stations                             Classes of emission
      100–160 kHz                                         A1A.
      405–525 kHz                                         A1A, J2A.
 1605–2850 kHz:
      Manual                                              A1A, J2A.
      Facsimile                                           F1C, F3C, J2C, J3C.
      Alaska-Fixed                                        A1A, J2A.
 4000–27500 kHz:
      Manual16                                            A1A, J2A, J2B, J2D.
            18
      DSC                                                 F1B, J2B.
                 14 18
      NB–DP                                               F1,B J2B, J2D.
      Facsimile                                           F1C, F3C, J2C, J3C.
      Alaska-Fixed17 18                                   A1A, A2A, F1B, F2B, J2B, J2D.
      72–76 MHz                                           A1A, A2A, F1B, F2B.
      156–162      MHz2 20                                F1B, F2B, F2C, F3C, F1D, F2D.
      DSC                                                 G2B.
      216–220 MHz3                                        F1B, F2B, F2C, F3C.
 Radiotelephony:
      1615–27500 kHz18 19                                 H3E, J3E, R3E.
      72–76 MHz                                           A3E, F3E, G3E.
      156–470 MHz                                         G3E.
 Radiodetermination:
      2.4–9.6 GHz                                         PON.
 Distress, Urgency and       Safety8 9
      2182 kHz10 11                                       A2B, A3B, H2B, H3E, J2B, J3E.
      121.500 MHz                                         A3E, AEX, N0N.
      123.100 MHz                                         A3E.
      156.750 and 156.800       MHz13                     G3E, G3N.
      243.000 MHz                                         A3E, A3X, N0N.
      406.0–406.1 MHz                                     G1D.

1   Excludes distress, EPIRBs, survival craft, and automatic link establishment.

2Frequencies used for public correspondence and in Alaska 156.425 MHz. See §§ 80.371(c),
80.373(f) and 80.385(b). Transmitters approved before January 1, 1994, for G3E emissions will be
authorized indefinitely for F2C, F3C, F1D and F2D emissions. Transmitters approved on or after
January 1, 1994, will be authorized for F2C, F3C, F1D or F2D emissions only if they are approved
specifically for each emission designator.

3Frequencies used in the Automated Maritime Telecommunications System (AMTS). See §
80.385(b).

4   Types of emission are determined by the INMARSAT Organization.

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5   [Reserved]

6   G3D emission must be used only by one-board stations for maneuvering or navigation.

7   Frequencies used for cable repair operations. See § 80.375(b).

8   For direction finding requirements see § 80.375.

9   Includes distress emissions used by ship, coast, EPIRBs and survival craft stations.

10
     On 2182 kHz A1B, A2B, H2B and J2B emissions indicate transmission of the auto alarm signals.

11   Ships on domestic voyages must use J3E emission only.

12For frequencies 154.585 MHz, 159.480 MHz, 160.725 MHz, 160.785 MHz, 454.000 MHz and
459.000 MHz, authorized for offshore radiolocation and related telecommand operations.

13   [Reserved]

14NB–DP operations which are not in accordance with ITU–R Recommendations M.625 or M.476
are permitted to utilize any modulation, so long as emissions are within the limits set forth in §
80.211(f).

15   J2B is permitted only on 2000–27500 kHz.

16J2D is permitted only on 2000–27500 kHz, and ship stations employing J2D emissions shall at
no time use a peak envelope power in excess of 1.5 kW per channel.

17   J2B and J2D are permitted provided they do not cause harmful interference to A1A.

18 Coast stations employing J2D emissions shall at no time use a peak envelope power in excess
of 10 kW per channel.

19   J2D is permitted only on 2000–27500 kHz.

20 If a station uses another type of digital emission, it must comply with the emission mask
requirements of § 90.210 of this chapter, except that Automatic Identification System (AIS)
transmissions do not have to comply with the emission mask requirements of § 90.210 of this
chapter.

[51 FR 31213, Sept. 2, 1986]

Editorial Note: For FEDERAL REGISTER citations affecting § 80.207, see the List of CFR Sections Affected, which
appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

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                                                                                                       47 CFR 80.209
Stations in the Maritime Services

§ 80.209 Transmitter frequency tolerances.
     (a) The frequency tolerance requirements applicable to transmitters in the maritime services are shown in the
         following table. Tolerances are given as parts in 106 unless shown in Hz.

                                     Frequency bands and categories of stations                Tolerances1
           (1) Band 100–525 kHz:
               (i) Coast stations:
                    For single sideband emissions                                            20 Hz.
                    For transmitters with narrow-band direct printing and data emissions     10 Hz2
                    For transmitters with digital selective calling emissions                10 Hz.
                    For all other emissions                                                  100.
               (ii) Ship stations:
                    For transmitters with narrow-band direct printing and data emissions     20 Hz.
                    For transmitters with digital selective calling emissions                10 Hz2
                    For all other transmitters                                               10 Hz.
               (iii) Ship stations for emergency only:
                    For all emissions                                                        20 Hz.
               (iv) Survival craft stations:
                    For all emissions                                                        20 Hz.
               (v) Radiodetermination stations:
                    For all emissions                                                        100.
           (2) Band 1600–4000 kHz:
               (i) Coast stations and Alaska fixed stations:
                    For single sideband and facsimile                                        20 Hz.
                    For narrow-band direct printing and data emissions                       10 Hz.2
                    For transmitters with digital selective calling emissions                10 Hz.2
                    For all other emissions                                                  50 Hz.
               (ii) Ship stations:
                    For transmitters with narrow-band direct printing and data emissions     10 Hz.2
                    For transmitters with digital selective calling emissions                10 Hz.3
                    For all other transmitters                                               20 Hz.
               (iii) Survival craft stations:                                                20 Hz.
               (iv) Radiodetermination stations:
                    With power 200W or less                                                  20.
                    With power above 200W                                                    10.
           (3) Band 4000–27500 kHz:
               (i) Coast stations and Alaska fixed stations:
                    For single sideband and facsimile emissions                              20 Hz.
                    For narrow-band direct printing and data emissions                       10 Hz.2
                    For digital selective calling emissions                                  10 Hz.
                    For Morse telegraphy emissions                                           10.

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                                                                                                         47 CFR 80.209(a)
Stations in the Maritime Services

                                     Frequency bands and categories of stations                    Tolerances1
                    For all other emissions                                                       15 Hz.
               (ii) Ship stations:
                    For transmitters with narrow-band direct printing and data emissions          10 Hz.2
                    For transmitters with digital selective calling emissions                     10 Hz.3
                    For all other transmitters                                                    20 Hz.
               (iii) Survival craft stations:                                                     50 Hz.
           (4) Band 72–76 MHz:
               (i) Fixed stations:
                    Operating in the 72.0–73.0 and 75.4–76.0 MHz bands                            5.
                    Operating in the 73.74.6 MHz band                                             50.
           (5) Band 156–162 MHz:
               (i) Coast stations:
                    For carriers licensed to operate with a carrier power:
                         Below 3 watts                                                            10.
                         3 to 100 watts                                                           5.7
               (ii) Ship stations                                                                 10.4
               (iii) Survival craft stations operating on 121.500 MHz                             50.
               (iv) EPIRBs:
                    Operating on 121.500 and 243.000 MHz                                          50.
                    Operating on 156.750 and 156.800    MHz.6                                     10.
           (6) Band 216–220 MHz:
               (i) Coast stations:
                    For all emissions                                                             5.
               (ii) Ship stations:
                    For all emissions                                                             5.
           (7) Band 400–466 MHz:
               (i) EPIRBs operating on 406–406.1 MHz                                              5.
               (ii) On-board stations                                                             5.
               (iii) Radiolocation and telecommand stations.                                      5.
           (8) Band 1626.5–1646.5 MHz:
               (i) Ship earth stations                                                            5.

           1 Transmitters authorized prior to January 2, 1990, with frequency tolerances equal to or better than
           those required after this date will continue to be authorized in the maritime services provided they
           retain approval and comply with the applicable standards in this part.

           2 The frequency tolerance for narrow-band direct printing and data transmitters installed before
           January 2, 1992, is 15 Hz for coast stations and 20 Hz for ship stations. The frequency tolerance
           for narrow-band direct printing and data transmitters approved or installed after January 1, 1992, is
           10 Hz.

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                                                                                                              47 CFR 80.209(b)
Stations in the Maritime Services

           3   [Reserved]

           4For transmitters in the radiolocation and associated telecommand service operating on 154.584
           MHz, 159.480 MHz, 160.725 MHz and 160.785 MHz the frequency tolerance is 15 parts in 106.

           5   [Reserved]

           6   [Reserved]

           7
             For transmitters operated at private coast stations with antenna heights less than 6 meters (20
           feet) above ground and output power of 25 watts or less the frequency tolerance is 10 parts in 106.

     (b) When pulse modulation is used in land and ship radar stations operating in the bands above 2.4 GHz the
         frequency at which maximum emission occurs must be within the authorized bandwidth and must not be
         closer than 1.5/T MHz to the upper and lower limits of the authorized bandwidth where “T” is the pulse
         duration in microseconds. In the band 14.00–14.05 GHz the center frequency must not vary more than 10
         MHz from 14.025 GHz.

     (c) For stations in the maritime radiodetermination service, other than ship radar stations, the authorized
         frequency tolerance will be specified on the license when it is not specified in this part.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 7418, Mar. 11, 1987; 53 FR 37308, Sept. 26, 1988; 54 FR 49994, Dec. 4, 1989;
57 FR 26778, June 16, 1992; 58 FR 33344, June 17, 1993; 62 FR 40306, July 28, 1997; 63 FR 36606, July 7, 1998; 68 FR 46964,
Aug. 7, 2003; 76 FR 67611, Nov. 2, 2011]

§ 80.211 Emission limitations.
The emissions must be attenuated according to the following schedule.

     (a) The mean power when using emissions H3E, J3E and R3E:

           (1) On any frequency removed from the assigned frequency by more than 50 percent up to and including
               150 percent of the authorized bandwidth:

          at least 25 dB for transmitters installed before February 1, 1992,

          at least 28 dB for transmitters installed on or after February 1, 1992;

           (2) On any frequency removed from the assigned frequency by more than 150 percent up to and
               including 250 percent of the authorized bandwidth: At least 35 dB; and

           (3) On any frequency removed from the assigned frequency by more than 250 percent of the authorized
               bandwidth: At least 43 plus 10log10 (mean power in watts) dB.

     (b) For transmitters operating in the band 1626.5–1646.5 MHz. In any 4 kHz band the mean power of
         emissions shall be attenuated below the mean output power of the transmitter as follows:

           (1) Where the center frequency is removed from the assigned frequency by more than 50 percent up to
               and including 100 percent of the authorized bandwidth: At least 25 dB;

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                                                                                                            47 CFR 80.211(b)(2)
Stations in the Maritime Services

           (2) Where the center frequency is removed from the assigned frequency by more than 100 percent up to
               250 percent of the authorized bandwidth: At least 35 dB; and

           (3) On any frequency removed from the assigned frequency by more than 250 percent of the authorized
               bandwidth: At least 43 plus 10log10 (mean power in watts) dB.

     (c) In any 4 kHz band the peak power of spurious emissions and noise at the input to the transmit antenna
         must be attenuated below the peak output power of the station as follows:

           (1) 125 dB at 1525.0 MHz, increasing linearly to 90 dB at 1612.5 MHz;

           (2) 90 dB at 1612.5 MHz increasing linearly to 60 dB at 1624.0 MHz;

           (3) 90 dB from 1624.0 MHz to 1650.0 MHz, except at frequencies near the transmitted carrier where the
               requirements of paragraphs (b)(1) through (3) of this section, apply;

           (4) 60 dB at 1650.0 MHz decreasing linearly to 90 dB at 1662.5 MHz;

           (5) 90 dB at 1662.5 MHz decreasing linearly to 125 dB at 1752.5 MHz; and

           (6) 125 dB outside above range, except for harmonics which must comply with (b)(3) of this section.

     (d) The mean power of emissions from radiotelephone survival craft transmitters, 9 GHz search and rescue
         transponders, and radiotelegraph survival craft transmitters must be attenuated below the mean output
         power of the transmitter as follows:

           (1) On any frequency removed from the assigned frequency by more than 50 percent, up to and including
               100 percent of the authorized bandwidth: at least 25 dB;

           (2) On any frequency removed from the assigned frequency by more than 100 percent of the authorized
               bandwidth: at least 30 dB.

     (e) The mean power of EPIRBs operating on 121.500 MHz, 243.000 MHz and 406.0–406.1 MHz must be as
         follows:

           (1) On any frequency removed from the assigned frequency by more than 50 percent, up to and including
               100 percent of the authorized bandwidth: At least 25 dB;

           (2) On any frequency removed from the assigned frequency by more than 100 percent: at least 30 dB.

     (f) The mean power when using emissions other than those in paragraphs (a), (b), (c) and (d) of this section:

           (1) On any frequency removed from the assigned frequency by more than 50 percent up to and including
               100 percent of the authorized bandwidth: At least 25 dB;

           (2) On any frequency removed from the assigned frequency by more than 100 percent up to and
               including 250 percent of the authorized bandwidth: At least 35 dB; and

           (3) On any frequency removed from the assigned frequency by more than 250 percent of the authorized
               bandwidth: At least 43 plus 10log10 (mean power in watts) dB.

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 40058, Sept. 29, 1989; 54 FR 49994, Dec. 4, 1989; 56 FR 11516, Mar. 19, 1991;
62 FR 40306, July 28, 1997; 73 FR 4482, Jan. 25, 2008; 78 FR 25175, Apr. 29, 2013]

§ 80.213 Modulation requirements.
     (a) Transmitters must meet the following modulation requirements:
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                                                                                                   47 CFR 80.213(a)(1)
Stations in the Maritime Services

           (1) When double sideband emission is used the peak modulation must be maintained between 75 and
               100 percent;

           (2) When phase or frequency modulation is used in the 156–162 MHz band the peak modulation must
               be maintained between 75 and 100 percent. A frequency deviation of ±5 kHz is defined as 100
               percent peak modulation; and

           (3) In single sideband operation the upper sideband must be transmitted. Single sideband transmitters
               must automatically limit the peak envelope power to their authorized operating power and meet the
               requirements in § 80.207(c).

     (b) Radiotelephone transmitters using A3E, F3E and G3E emission must have a modulation limiter to prevent
         any modulation over 100 percent. This requirement does not apply to survival craft transmitters, to
         transmitters that do not require a license or to transmitters whose output power does not exceed 3 watts.

     (c) Coast station transmitters operated in the 72.0–73.0 MHz and 75.4–76.0 MHz bands must be equipped
         with an audio low-pass filter. The filter must be installed between the modulation limiter and the
         modulated radio frequency stage. At frequencies between 3 kHz and 15 kHz it must have an attenuation
         greater than at 1 kHz by at least 40log10 (f/3) dB where “f” is the frequency in kilohertz. At frequencies
         above 15 kHz the attenuation must be at least 28 dB greater than at 1 kHz.

     (d) Ship and coast station transmitters operating in the 156–162 MHz and 216–220 bands must be capable
         of proper operation with a frequency deviation that does not exceed ±5 kHz when using any emission
         authorized by § 80.207.

     (e) Coast station transmitters operated in the 156–162 MHz band must be equipped with an audio low-pass
         filter. The filter must be installed between the modulation limiter and the modulated radio frequency
         stage. At frequencies between 3 kHz and 20 kHz it must have an attenuation greater than at 1 kHz by at
         least 60log10(f/3) dB where “f” is the audio frequency in kilohertz. At frequencies above 20 kHz the
         attenuation must be at least 50 dB greater than at 1 kHz.

     (f) Radiodetermination ship stations operating on 154.585 MHz, 159.480 MHz, 160.725 MHz, 160.785 MHz,
         454.000 MHz and 459.000 MHz must employ a duty cycle with a maximum transmission period of 60
         seconds followed by a minimum quiescent period four times the duration of the transmission period.

     (g) Radar stations operating in the bands above 2.4 GHz may use any type of modulation consistent with the
         bandwidth requirements in § 80.209(b).

     (h) Radar transponder coast stations using the 2900–3100 MHz or 9300–9500 MHz band must operate in a
         variable frequency mode and respond on their operating frequencies with a maximum error equivalent to
         100 meters. Additionally, their response must be encoded with a Morse character starting with a dash.
         The duration of a Morse dot is defined as equal to the width of a space and 1⁄3 of the width of a Morse
         dash. The duration of the response code must not exceed 50 microseconds. The sensitivity of the
         stations must be adjustable so that received signals below −10 dBm at the antenna will not activate the
         transponder. Antenna polarization must be horizontal when operating in the 9300–9500 MHz band and
         either horizontal or both horizontal and vertical when operating in the 2900–3100 MHz band. Racons
         using frequency agile transmitting techniques must include circuitry designed to reduce interference
         caused by triggering from radar antenna sidelobes.

     (i)   Variable frequency ship station transponders operating in the 2900–3100 MHz or 9300–9500 MHz band
           that are not used for search and rescue purposes must meet the following requirements:

           (1) Non-selectable transponders must have the following characteristics:

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                                                                                                           47 CFR 80.213(i)(1)(i)
Stations in the Maritime Services

                 (i)   They must respond on all their frequencies with a maximum range error equivalent to 100
                       meters;

                (ii) They must use a Morse encoding of “PS” (dot-dash-dash-dot, dot-dot-dot), meaning “You should
                     not come any closer”. The width of a Morse dot is defined as equal to the width of a space and
                     1⁄ of the width of a Morse dash;
                       3

                (iii) When they employ swept frequency techniques they must not transmit on any frequency for
                      more than 10 seconds in any 120 second period;

                (iv) Any range offset of their response must occur during their pause on the fixed frequency;

                (v) The duration of the response code must not exceed 50 microseconds;

                (vi) The sensitivity of the stations must be adjustable so that received signals below −10 dBm at
                     the antenna input will not activate the transponder;

                (vii) Antenna polarization must be horizontal when operating in the 9300–9500 MHz band and either
                      horizontal or both horizontal and vertical when operating in the 2900–3100 MHz band.

                (viii) Transponders using frequency agile techniques must include circuitry designed to reduce
                       interference caused by triggering from radar antenna sidelobes.

           (2) Selectable transponders must be authorized under part 5 of the Commission's rules until standards
               for their use are developed.

     (j)   The transmitted signals of search and rescue transponders must cause to appear on a radar display a
           series of at least 20 equally spaced dots.

     (k) The modulation requirements for EPIRB's are contained in subpart V.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 7418, Mar. 11, 1987; 52 FR 28825, Aug. 4, 1987; 54 FR 40058, Sept. 29, 1989;
57 FR 43407, Sept. 21, 1992; 65 FR 77824, Dec. 13, 2000; 68 FR 46965, Aug. 7, 2003; 69 FR 64673, Nov. 8, 2004]

§ 80.215 Transmitter power.
     (a) Transmitter power shown on the radio station authorization is the maximum power the licensee is
         authorized to use. Power is expressed in the following terms:

           (1) For single sideband emission: Peak evelope power;

           (2) For G3E emission: Carrier power;

           (3) For PON and F3N emission: Mean power;

           (4) For all emissions in the 1626.5–1646.5 MHz band: equivalent isotropic radiated power.

           (5) For all other emissions: the carrier power multiplied by 1.67.

     (b) Coast station frequencies below 27500 kHz. The maximum power must not exceed the values listed
         below.

           (1) Public coast stations, except Alaska:

                 (i)   Radiotelegraphy:

                100–160 kHz—80kW

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                                                                                               47 CFR 80.215(b)(1)(ii)
Stations in the Maritime Services

                   405–525 kHz—40kW

                   2035–2065 kHz—6.6kW

                   4000–8000 kHz—10kW

                   8000–9000 kHz—20kW

                   12000–27500 kHz—30kW

                   (ii) Radiotelephony:

                   2000–4000 kHz—day—800W

                   2000–4000 kHz—night—400W

                   4000–27500 kHz—10kW

              (2) Private coast stations, except in Alaska: 1kW

              (3) Coast stations in Alaska, public and private:

             405–525 kHz—265W

             1605–12000 kHz—150W

         (c) Coast station frequencies above 27500 kHz. The maximum power must not exceed the values listed
             below.

              (1) Coast stations:

             156–162 MHz–50W[1, 2, 13]

             216–220 MHz[2]

              (2) Marine utility stations:

             156–162 MHz—10W

         (d) Ship station frequencies below 27500 kHz. The maximum power must not exceed the values listed below:

              (1) Radiotelegraphy: All ships—2kW[3]

   [2]   See paragraph (h) of this section.
   [1]   Maximum authorized power at the input terminals of the station antenna.
   [3]For passenger ships 5000 gross tons and over—8kW. For cable-repair ships operating on radiodetermination
   frequencies, 15 watts; see § 80.375(b).

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                                                                                                  47 CFR 80.215(d)(2)
Stations in the Maritime Services

              (2) Radiotelephony:

                      (i)   All ships—Great Lakes and Inland Waters—150W

                   (ii) All ships—Open waters; 2000–4000 kHz—150W

                   2182 kHz—emergency, urgency, or safety ship to shore—400W[4]

                   (iii) All ships—Open waters; 4000–27500 kHz—1.5kW[5] .

              (3) Digital selective calling:

             All ships 415–526.5 kHz—400 W

             All ships 1605–4000 kHz—400 W

             All ships 4000–27500 kHz—1.5 kW

         (e) Ship stations frequencies above 27500 kHz. The maximum power must not exceed the values listed
             below.

              (1) Ship stations 156–162 MHz—25W[6]

              (2) Ship stations 216–220 MHz—25W[7]

              (3) On board stations 456–468 MHz—4W[8]

              (4) Ship earth stations 1626.5–1646.5 MHz[9]

              (5) Ship radar stations with F3N emission—200 mW

              (6) EPIRB—121.500 and 243.00 MHz[10]

   [4]
         For passenger ships 5000 gross tons and over—1kW.
   [5]   For passenger ships 5,000 gross tons and over 3kW.
   [6]
     Reducible to 1 watt or less, except for transmitters limited to public correspondence channels and used in
   an automated system.
   [7]   [Reserved]
   [8]
     Certification based on a carrier power of 4 watts with transmitter connected to a dummy load of matching
   impedance. The effective radiated power must not exceed 2 watts.
   [9]   See paragraph (k) of this section.
   [10]   See subpart V of this part.

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                                                                                                        47 CFR 80.215(e)(7)
Stations in the Maritime Services

              (7) EPIRB—156.750 and 156.800 MHz10

      (f) Fixed stations. The maximum power must not exceed the values + listed below.

              (1) Maritime support (receiver test):

             R3E and J3C emission—150W

             F3E emission—50W

              (2) Operational fixed: 72–76 MHz and above 162 MHz[11]

              (3) Alaska—Private fixed:[12]

     10–200 kHz—650W

     405–525 kHz—265W

     1605–12000 kHz—150W

              (4) Alaska—Public fixed:

             405–525 kHz—1kW

             1605–12000 kHz—1kW

      (g) The carrier power of ship station radiotelephone transmitters, except portable transmitters, operating in
          the 156–162 MHz band must be at least 8 but not more than 25 watts. Transmitters that use 12 volt lead
          acid storage batteries as a primary power source must be measured with a primary voltage between 12.2
          and 13.7 volts DC. Additionally, unless otherwise indicated, equipment in radiotelephone ship stations
          operating in the 156–162 MHz band must meet the following requirements:

              (1) All transmitters and remote control units must be capable of reducing the carrier power to one watt
                  or less;

              (2) Except as indicated in (g)(4) of this section, all transmitters manufactured after January 21, 1987, or
                  in use after January 21, 1997, must automatically reduce the carrier power to one watt or less when
                  the transmitter is tuned to 156.375 MHz or 156.650 MHz, and must be provided with a manual
                  override switch which when held by an operator will permit full carrier power operation on 156.375
                  MHz and 156.650 MHz;

              (3) [Reserved]

   [11]   See paragraph (l) of this section.
   [12]
      The frequencies 156.375 MHz and 156.650 MHz are primarily intership frequencies. When authorized for
   coast stations on a secondary basis, the normal output power must not exceed 1 watt and the maximum
   output power must not exceed 10 watts.

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                                                                                                      47 CFR 80.215(g)(4)
Stations in the Maritime Services

           (4) Hand-held portable transmitters are not required to comply with the automatic reduction of carrier
               power in (g)(2) of this section; and

           (5) Transmitters dedicated for use on public correspondence duplex channels as additional equipment
               to a VHF ship station in the Great Lakes which meet all pertinent rules in this part are not required to
               reduce their carrier power to one watt.

     (h) Coast stations in an AMTS may radiate as follows, subject to the condition that no harmful interference
         will be caused to television reception except that TV services authorized subsequent to the filing of the
         AMTS station application will not be protected.

           (1) When located more than 169 kilometers (105 miles) from the antenna of a Channel 13 TV station
               and more than 129 kilometers (80 miles) from the antenna of a channel 10 station, the ERP of coast
               stations having an antenna height of 61 meters (200 feet) or less above ground must not exceed
               1000 watts.

           (2) Coast stations located less than 169 kilometers (105 miles) from a channel 13 TV station, or less
               than 129 kilometers (80 miles) from a channel 10 TV station, or when using a transmitting antenna
               height above ground greater than 61 meters (200 feet), must submit a plan to limit interference to TV
               reception, unless the station's predicted interference contour is fully encompassed by the composite
               interference contour of the system's existing stations, or the station's predicted interference contour
               extends the system's composite interference contour over water only (disregarding uninhabited
               islands). The plan must include:

                 (i)   A description of the interference contour with indentification of the method used to determine
                       this contour; and

                (ii) A statement concerning the number of residences within the interference contour. The
                     interference contour includes only areas inside the TV grade B contour with the latter
                     determined assuming maximum permissible TV antenna height and power for broadcast
                     stations and the actual facility parameters for translators and low power TV stations. See part
                     73, subpart E of this chapter for further information on TV grade B contour determination.

           (3) When located as described in paragraph (h)(2) of this section, the coast station (or stations affecting
               the same TV Grade B contour) will be authorized if the applicant's plan has limited the interference
               contour(s) to fewer than 100 residences or if the applicant:

                 (i)   Shows that the proposed site is the only suitable location (which, at the application stage,
                       requires a showing that the proposed site is especially well-suited to provide the proposed
                       service);

                (ii) Develops a plan to control any interference caused to TV reception within the Grade B contour
                     from its operations; and

                (iii) Agrees to make such adjustments in the TV receivers affected as may be necessary to
                      eliminate interference caused by its operations.

           (4) The applicant must eliminate any interference caused by its operation to TV reception within the
               Grade B contour that might develop within 90 days of the time it is notified in writing by the
               Commission. If this interference is not removed within the 90-day period, operation of the coast
               station must be discontinued. The licensee is expected to help resolve all complaints of interference,
               whether inside or outside the Grade B contour.

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                                                                                                            47 CFR 80.215(h)(5)
Stations in the Maritime Services

           (5) The transmitter power, as measured at the input terminals to the station antenna, must be 50 watts
               or less.

     (i)   A ship station must have a transmitter output not exceeding 25 watts and an ERP not exceeding 18 watts.
           The maximum transmitter output power is permitted to be increased to 50 watts under the following
           conditions:

           (1) Increases exceeding 25 watts are made only by radio command from the controlling coast stations;
               and

           (2) The application for an equipment authorization demonstrates that the transmitter output power is 25
               watts or less when external radio commands are not present.

     (j)   A ship installation with a transmitter output power exceeding 25 watts under the conditions of paragraph
           (i) of this section is exempted from the limitation of 18 watts ERP when operating in specific geographical
           areas identified in a plan for the use of higher power.

     (k) Within the 1626.5–1646.5 MHz band the maximum e.i.r.p by a ship earth station in any direction in the
         horizontal plane or in the direction of the space station must not exceed + 40 dB relative to one watt in
         any 4 kHz band in the main beam, except upon a satisfactory showing of need for greater power, in which
         case a maximum of + 55 dB relative to one watt may be authorized.

     (l)   For operational fixed stations using frequencies in the 72–76 MHz band and for other classes of stations
           operating above 162.025 MHz, the transmitter power must be specified in the station authorization.
           Frequencies in the 72–76 MHz band are listed in § 80.381. The operational requirements for 72–76 MHz
           are contained in subpart L of this part.

     (m) For radiodetermination transmitters using A1D, A2D, F1D, F2D, G1D and G2D emissions on 154.585 MHz,
         159.480 MHz, 160.725 MHz, 160.785 MHz, 454.000 MHz and 459.000 MHz the mean output power of the
         unmodulated carrier must not exceed 25 watts.

     (n) For radiodetermination stations operating above 2400 MHz the output power must be as follows:

           (1) For radar stations that use F3N emission the mean output power must not exceed 200 milliwatts;

           (2) For search and rescue stations the output power must be at least 400 milliwatts peak e.i.r.p.

           (3) For all other transponder stations the output power must not exceed 20 watts peak e.i.r.p. Licensees
               of non-selectable transponder coast stations operating in the 2920–3100 MHz and 9320–9500 MHz
               bands must notify in writing the USCG District Commander of any incremental increase of their
               station's output power above 5 watts peak e.i.r.p.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 7419, Mar. 11, 1987; 52 FR 35244, Sept. 18, 1987; 54 FR 40058, Sept. 29, 1989;
54 FR 49994, Dec. 4, 1989; 56 FR 3783, Jan. 31, 1991; 59 FR 35269, July 11, 1994; 63 FR 36606, July 7, 1998; 65 FR 77824, Dec.
13, 2000; 67 FR 48564, July 25, 2002; 68 FR 46965, Aug. 7, 2003; 69 FR 64673, Nov. 8, 2004; 82 FR 27213, June 14, 2017]

§ 80.217 Suppression of interference aboard ships.
     (a) A voluntarily equipped ship station receiver must not cause harmful interference to any receiver required
         by statute or treaty.

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                                                                                                             47 CFR 80.217(b)
Stations in the Maritime Services

     (b) The electromagnetic field from receivers required by statute or treaty must not exceed the following value
         at a distance over sea water of one nautical mile from the receiver:

                   Frequency of interfering emissions                Field intensity in microvolts per meter
           Below 30 MHz                                                                                           0.1
           30 to 100 MHz                                                                                           .3
           100 to 300 MHz                                                                                         1.0
           Over 300 MHz                                                                                           3.0

or

Deliver not more than the following amounts of power, to an artificial antenna having electrical characteristics
equivalent to those of the average receiving antenna(s) use on shipboard:

       Frequency of interfering emissions               Power to artificial antenna in microwatts
 Below 30 MHz                                                                                         400
 30 to 100 MHz                                                                                       4,000
 100 to 300 MHz                                                                                     40,000
 Over 300 MHz                                                                                   400,000

§ 80.219 Special requirements for narrow-band direct-printing (NB–DP) equipment.
NB–DP and data transmission equipment installed in ship and coast stations before October 1, 1990, that operates
on the frequencies in the 4,000–27,500 kHz bands must be capable of operation in accordance with the technical
requirements of either ITU–R M.476–5 or ITU–R M.625–3 (both incorporated by reference, see § 80.7), and may be
used indefinitely. Equipment installed on or after October 1, 1990, must be capable of operation in accordance with
the technical requirements of ITU–R M.625–3, 1995 (incorporated by reference, see § 80.7). NB–DP and data
transmission equipment are additionally permitted to utilize any modulation, so long as emissions are within the
limits set forth in § 80.211(f) and the equipment is also capable of operation in accordance with ITU–R M.625–3
(incorporated by reference, see § 80.7).

[76 FR 67611, Nov. 2, 2011]

§ 80.221 Special requirements for automatically generating the radiotelephone alarm signal.
     (a) Each device for automatically generating the radiotelephone alarm signal must be capable of being
         disabled to permit the immediate transmission of a distress call and message.

     (b) The device must comply with the following requirements:

           (1) The frequency tolerance of each tone must be ±1.5 percent;

           (2) The duration tolerance of each tone must be ±50 milliseconds;

           (3) The interval between successive tones must not exceed 50 milliseconds; and

           (4) The amplitude ratio of the tones must be flat within 1.6 dB.

     (c) Devices installed on or after January 1, 1983, must comply with the following requirements:

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           (1) The frequency tolerance of each tone must be ±1.5 percent;

           (2) The duration tolerance of each tone must be ±10 milliseconds;

           (3) The interval between successive tones must not exceed 4 milliseconds;

           (4) The amplitude ratio of the tones must be flat within 1.6 dB;

           (5) The output of the device must be sufficient to modulate the associated transmitter for H2B emission
               to at least 70 percent, and for J2B emission to within 3 dB of the rated peak envelope power;

           (6) Light from the device must not interfere with the safe navigation of the ship;

           (7) After activation the device must automatically generate the radiotelephone alarm signal for not less
               than 30 seconds and not more than 60 seconds unless manually interrupted;

           (8) After generating the radiotelephone alarm signal or after manual interruption the device must be
               immediately ready to repeat the signal;

           (9) The transmitter must be automatically switched from the stand-by condition to the transmit
               condition at the start and return to the stand-by condition at the conclusion of the radiotelephone
               alarm signal.

     (d) Any device used by a station to automatically generate the radiotelephone alarm signal must be
         certificated by the Commission.

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 40059, Sept. 29, 1989; 63 FR 36606, July 7, 1998]

§ 80.223 Special requirements for survival craft stations.
     (a) Survival craft stations capable of transmitting on:

           (1) 2182 kHz must be able to operate with A3E or H3E and J2B and J3E emissions;

           (2) 121.500 MHz must be able to operate with A3E or A3N emission.

     (b) Survival craft stations must be able to receive the frequency and types of emission which the transmitter
         is capable of using.

     (c) Any EPIRB carried as part of a survival craft must comply with the specific technical and performance
         requirements for its class contained in subpart V of this chapter.

[68 FR 46966, Aug. 7, 2003, as amended at 73 FR 4482, Jan. 25, 2008]

§ 80.225 Requirements for selective calling equipment.
This section specifies the requirements for voluntary digital selective calling (DSC) equipment and selective calling
equipment installed in ship and coast stations, and incorporates by reference ITU–R M.476–5; ITU–R M.493–13;
ITU–R M.541–9; ITU–R M.625–3; RTCM Paper 56–95/SC101–STD; and IEC 62238 (all incorporated by reference,
see § 80.7).

     (a) The requirements for DSC equipment voluntarily installed in coast or ships stations are as follows:

           (1) Prior to March 25, 2009, DSC equipment must meet the requirements of the following standards in
               order to be approved for use:

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                 (i)   RTCM Paper 56–95/SC101–STD and ITU–R M.493–13 (both incorporated by reference, see §
                       80.7) (including only equipment classes A, B, D, and E); or

                (ii) ITU–R M.493–13 and, in the case of Class D DSC equipment only, IEC 62238 (both incorporated
                     by reference, see § 80.7).

           (2) Beginning March 25, 2009, the Commission will not accept new applications (but will continue to
               process then-pending applications) for certification of non-portable DSC equipment that does not
               meet the requirements of ITU–R M.493–13 and, in the case of Class D DSC equipment only, IEC
               62238 (both incorporated by reference, see § 80.7).

           (3) Beginning March 25, 2012, the Commission will not accept new applications (but will continue to
               process then-pending applications) for certification of handheld, portable DSC equipment that does
               not meet the requirements of ITU–R M.493–13 and, in the case of Class D DSC equipment only, IEC
               62238 (both incorporated by reference, see § 80.7).

           (4) The manufacture, importation, sale or installation of non-portable DSC equipment that does not
               comply with either of the standards referenced in paragraph (a)(2) of this section is prohibited
               beginning March 25, 2011.

           (5) The manufacture, importation, or sale of handheld, portable DSC equipment that does not comply
               with either of the standards referenced in paragraph (a)(3) of this section is prohibited beginning
               March 25, 2015.

           (6) Approved DSC equipment that has been manufactured, sold, and installed in conformity with the
               requirements of this section may be used indefinitely.

     (b) Manufacturers of Class C DSC equipment to be used on United States vessels must affix a clearly
         discernible permanent plate or label visible from the operating controls containing the following:

           Warning. This equipment is designed to generate a digital maritime distress and safety signal to
           facilitate search and rescue. To be effective as a safety device, this equipment must be used only
           within communication range of a shore-based VHF marine channel 70 distress and safety watch
           system. The range of the signal may vary but under normal conditions should be approximately 20
           nautical miles.

     (c) Selective calling equipment, other than that designed in accordance with paragraph (a) of this section, is
         authorized as follows:

           (1) Equipment used in conjunction with the Automated Maritime Telecommunications System (AMTS) in
               the band 216–220 MHz,

           (2) Equipment used to perform a selective calling function during narrow-band direct-printing (NB–DP)
               operations in accordance with ITU–R M.476–5 or ITU–R M.625–3 or ITU–R M.493–13 (all
               incorporated by reference, see § 80.7), and

           (3) Equipment functioning under the provisions of § 80.207(a) includes the brief use of radiotelegraphy,
               including keying only the modulating audio frequency, tone signals, and other signalling devices to
               establish or maintain communications provided that:

                 (i)   These signalling techniques are not used on frequencies designated for general purpose digital
                       selective calling (DSC) and distress and safety DSC calling as listed in § 80.359;
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                 (ii) The authorized radiotelephone emission bandwidth is not exceeded;

                (iii) Documentation of selective calling protocols must be available to the general public; and,

                (iv) Harmful interference is not caused to stations operating in accordance with the International
                     Radio Regulations.

[54 FR 10009, Mar. 9, 1989, as amended at 62 FR 40306, July 28, 1997; 68 FR 46966, Aug. 7, 2003; 73 FR 4482, Jan. 25, 2008; 76
FR 67611, Nov. 2, 2011]

§ 80.227 Special requirements for protection from RF radiation.
As part of the information provided with transmitters for ship earth stations, manufacturers of each such unit must
include installation and operating instructions to help prevent human exposure to radiofrequency (RF) radiation in
excess of the RF exposure guidelines specified in § 1.1307(b) of the Commission's Rules.

[53 FR 28225, July 27, 1988]

§ 80.229 Special requirements for automatic link establishment (ALE).
Brief signalling for the purposes of measuring the quality of a radio channel and thereafter establishing
communication shall be permitted within the 2 MHz–30 MHz band. Public coast stations providing high seas
service are authorized by rule to use such signalling under the following conditions:

     (a) The transmitter power shall not exceed 100 W ERP;

     (b) Transmissions must sweep linearly in frequency at a rate of at least 60 kHz per second, occupying any 3
         kHz bandwidth for less than 50 milliseconds;

     (c) The transmitter shall scan the band no more than four times per hour;

     (d) Transmissions within 6 kHz of the following protected frequencies and frequency bands must not exceed
         10 µW peak ERP:

           (1) Protected frequencies (kHz)

                 2091.0              4188.0               6312.0                 12290.0                16420.0
                 2174.5              4207.5               8257.0                 12392.0                16522.0
                 2182.0              5000.0               8291.0                 12520.0                16695.0
                 2187.5              5167.5               8357.5                 12563.0                16750.0
                 2500.0              5680.0               8364.0                 12577.0                16804.5
                 3023.0              6215.0               8375.0                 15000.0                20000.0
                 4000.0              6268.0               8414.5                 16000.0                25000.0
                 4177.5              6282.0               10000.0

           (2) Protected bands (kHz)

          4125.0–4128.0

          8376.25–8386.75

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          13360.0–13410.0

          25500.0–25670.0

     (e) The instantaneous signal, which refers to the peak power that would be measured with the frequency
         sweep stopped, along with spurious emissions generated from the sweeping signal, must be attenuated
         below the peak carrier power (in watts) as follows:

           (1) On any frequency more than 5 Hz from the instantaneous carrier frequency, at least 3 dB;

           (2) On any frequency more than 250 Hz from the instantaneous carrier frequency, at least 40 dB; and

           (3) On any frequency more than 7.5 kHz from the instantaneous carrier frequency, at least 43 + 10log10
               (peak power in watts) db.

[62 FR 40307, July 28, 1997]

§ 80.231 Technical Requirements for Class B Automatic Identification System (AIS) equipment.
     (a) Class B Automatic Identification System (AIS) equipment must meet the technical requirements of IEC
         62287–1 (incorporated by reference, see § 80.7).

     (b) In addition to the labels or other identifying information required under §§ 2.925 and 2.926 of this chapter,
         each Class B AIS device shall include a conspicuous label that includes: Instructions on how to accurately
         enter into the device and confirm static data pertaining to the vessel in which the device is or will be
         installed; and the following statement: “WARNING: It is a violation of the rules of the Federal
         Communications Commission to input an MMSI that has not been properly assigned to the end user, or to
         otherwise input any inaccurate data in this device.” Instructions on how to accurately enter and confirm
         static data in the device shall also be included in the user's manual for the device. The entry of static data
         into a Class B AIS device shall be performed by the vendor of the device or by an appropriately qualified
         person in the business of installing marine communications equipment on board vessels. In no event
         shall the entry of static data into a Class B AIS device be performed by the user of the device or the
         licensee of a ship station using the device. Knowingly programming a Class B AIS device with inaccurate
         static data, or causing a Class B AIS device to be programmed with inaccurate static data, is prohibited.

     (c) Prior to submitting a certification application for a Class B AIS device, the following information must be
         submitted in duplicate to typeapproval@uscg.mil or the Commandant (CG–ENG–4), U.S. Coast Guard
         Stop 7509, 2703 Martin Luther King Jr. Ave. SE., Washington, DC 20593–7509:

           (1) The name of the manufacturer or grantee and the model number of the AIS device; and

           (2) Copies of the test report and test data obtained from the test facility showing that the device
               complies with the environmental and operational requirements identified in IEC 62287–1.

     (d) After reviewing the information described in paragraph (c) of this section, the U.S. Coast Guard will issue a
         letter stating whether the AIS device satisfies all of the requirements specified in IEC 62287–1.

     (e) A certification application for an AIS device must contain a copy of the U.S. Coast Guard letter stating that
         the device satisfies all of the requirements specified in IEC 62287–1, a copy of the technical test data, and
         the instruction manual(s).

[74 FR 5124, Jan. 29, 2009, as amended at 76 FR 67612, Nov. 2, 2011; 81 FR 90746, Dec. 15, 2016]

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§ 80.233 Technical requirements for Automatic Identification System Search and Rescue
Transmitters (AIS–SART) equipment.
     (a) Automatic Identification System Search and Rescue Transmitter (AIS–SART) equipment must meet the
         technical requirements of IEC 61097–14 and IMO Resolution MSC.246(83) (incorporated by reference,
         see § 80.7(b)).

     (b) Prior to submitting a certification application for an AIS–SART device, the following information must be
         submitted in duplicate to the U.S. Coast Guard, 2703 Martin Luther King Jr. Ave. SE., Stop 7126,
         Washington, DC 20593–7126:

           (1) The name of the manufacturer or grantee and the model number of the AIS–SART device; and

           (2) Copies of the test report and test data obtained from the test facility showing that the device
               complies with the environmental and operational requirements identified in IEC 61097–14.

     (c) After reviewing the information described in paragraph (b) of this section, the U.S. Coast Guard will issue a
         letter stating whether the AIS–SART device satisfies all of the requirements specified in IEC 61097–14.

     (d) A certification application for an AIS–SART device must contain a copy of the U.S. Coast Guard letter
         stating that the device satisfies all of the requirements specified in IEC 61097–14, a copy of the technical
         test data, and the instruction manual(s).

[81 FR 90747, Dec. 15, 2016]

Subpart F—Equipment Authorization for Compulsory Ships
§ 80.251 Scope.
     (a) This subpart gives the general technical requirements for certification of equipment used on compulsory
         ships. Such equipment includes automatic-alarm-signal keying devices, survival craft radio equipment,
         radar equipment and Ship Security Alert System (SSAS) equipment.

     (b) The equipment described in this subpart must be certificated.

     (c) The term transmitter means the transmitter unit and all auxiliary equipment necessary to make this unit
         operate as a main or emergency transmitter in a ship station at sea. Each separate motor-generator,
         rectifier, or other unit required to convert the ship primary power to the phase, frequency, or voltage
         necessary to energize the transmitter unit is considered a component of the transmitter.

     (d) Average ship station antenna means an actual antenna installed on board ship having a capacitance of
         750 picofarads and an effective resistance of 4 ohms at a frequency of 500 kHz, or an artificial antenna
         having the same electrical characteristics.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 36606, July 7, 1998; 68 FR 46966, Aug. 7, 2003; 73 FR 4483, Jan. 25, 2008; 76
FR 67612, Nov. 2, 2011]

§ 80.268 Technical requirements for radiotelephone installation.
All radiotelephone installations in radiotelegraph equipped vessels must meet the following conditions.

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     (a) The radiotelephone transmitter must be capable of transmission of A3E or H3E emission on 2182 kHz and
         must be capable of transmitting clearly perceptible signals from ship to ship during daytime, under normal
         conditions over a range of 150 nautical miles when used with an antenna system in accordance with
         paragraph (c) of this section. The transmitter must:

           (1) Have a duty cycle which allows for transmission of the radiotelephone alarm signal described in §
               80.221.

           (2) Provide 25 watts carrier power for A3E emission or 60 watts peak power on H3E emission into an
               artificial antenna consisting of 10 ohms resistance and 200 picofarads capacitance or 50 ohms
               nominal impedance to demonstrate compliance with the 150 nautical mile range requirement.

           (3) Have a visual indication whenever the transmitter is supplying power to the antenna.

           (4) Have a two-tone alarm signal generator that meets § 80.221.

           (5) This transmitter may be contained in the same enclosure as the receiver required by paragraph (b) of
               this section. These transmitters may have the capability to transmit J2D or J3E transmissions.

     (b)

           (1) The radiotelephone receiver must receive A3E and H3E emissions when connected to the antenna
               system specified in paragraph (c) this section and must be preset to 2182 kHz. The receiver must
               additionally:

                 (i)   Provide an audio output of 50 milliwatts to a loudspeaker when the RF input is 50 microvolts.
                       The 50 microvolt input signal must be modulated 30 percent at 400 Hertz and provide at least a
                       6 dB signal-to-noise ratio when measured in the rated audio bandwidth.

                (ii) Be equipped with one or more loudspeakers capable of being used to maintain a watch on 2182
                     kHz at the principal operating position or in the room from which the vessel is normally steered.

           (2) This receiver may be contained in the same enclosure as the transmitter required by paragraph (a) of
               this section. These receivers may have the capability to receive J2D or J3E transmissions.

     (c) The antenna system must be as nondirectional and efficient as is practicable for the transmission and
         reception of radio ground waves over seawater. The installation and construction of the required antenna
         must ensure, insofar as is practicable, proper operation in time of emergency. If the required antenna is
         suspended between masts or other supports subject to whipping, a safety link must be installed which
         under heavy stress will reduce breakage of the antenna, the halyards, or any other supporting elements.

     (d) The radiotelephone installation must be provided with a device for permitting changeover from
         transmission to reception and vice versa without manual switching.

     (e) An artificial antenna must be provided to permit weekly checks, without causing interference, of the
         automatic device for generating the radiotelephone alarm signal on frequencies other than the
         radiotelephone distress frequency.

     (f) The radiotelephone installation must be located in the radiotelegraph operating room or in the room from
         which the ship is normally steered.

     (g) Demonstration of the radiotelephone installation may be required by Commission representatives to show
         compliance with applicable regulations.

     (h) The radiotelephone installation must be protected from excessive currents and voltages.

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     (i)   The radiotelephone installation must be maintained in an efficient condition.

[51 FR 31213, Sept. 2, 1986. Redesignated and amended at 68 FR 46973, Aug. 7, 2003; 73 FR 4483, Jan. 25, 2008]

§ 80.271 Technical requirements for portable survival craft radiotelephone transceivers.
     (a) Portable survival craft radiotelephone transceivers must comply with the following:

           (1) The transceivers must receive and transmit either on 457.525 MHz or on 156.800 MHz;

           (2) The receiver must comply with the requirements in part 15, subpart B of this chapter and must have
               a sensitivity of not more than 2 microvolts;

           (3) The effective radiated power of the transmitter must be at least 0.1 watt;

           (4) The transceivers must be battery powered and operate for at least four hours with a transmit to
               receive ratio of 1:9 with no significant adverse effect upon the performance of the device;

           (5) The transceivers must have a permanently attached waterproof label with the statement “Complies
               with the FCC requirements for survival craft two-way radiotelephone equipment”; and

           (6) The antenna must be permanently attached to the device or its removal must require the use of a
               special tool.

     (b) Portable radiotelephone transceivers that are already certificated may be used to satisfy the survival craft
         radiotelephone requirement until October 1, 1993, provided the device meets the technical requirements
         in paragraphs (a) (1) through (3) of this section.

     (c) Survival craft radiotelephone equipment installed after October 1, 1988, must be certificated to meet the
         requirements of this section.

     (d) After October 1, 1993, all portable radiotelephone transceivers that are used to satisfy the survival craft
         radiotelephone requirement must have been certificated to meet the requirements of this section.

     (e) Portable radiotelephone transceivers which are certified to meet the requirements of this section must be
         identified by an appropriate note in the Commission's database.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 36607, July 7, 1998; 73 FR 4483, Jan. 25, 2008; 76 FR 67612, Nov. 2, 2011]

§ 80.273 Radar standards.
     (a) Radar installations on board ships that are required by the Safety Convention or the U.S. Coast Guard to be
         equipped with radar must comply with the following standards (all incorporated by reference, see § 80.7):

           (1) IEC 60945;

           (2) IEC 62388;

           (3) IMO Resolution A.694(17), as revised by IMO Resolution MSC.149(77);

           (4) IMO Resolution MSC.191(79);

           (5) IMO Resolution MSC.192(79); and

           (6) ITU–R M.1177–3.

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     (b) For any ship of 10,000 tons gross tonnage and upwards or that is otherwise required to be equipped with
         two radar systems, each of the two radar systems must be capable of operating independently and must
         comply with the specifications, standards and general requirements set forth on paragraph (a) of this
         section. One of the systems must provide a display with an effective diameter of not less than 320
         millimeters (12.6 inches), (16-inch cathode ray tube). The other system must provide a display with an
         effective diameter of not less than 250 millimeters (9.8 inches), (12-inch cathode ray tube).

     (c) Radar installed before March 25, 2008 must meet and be maintained to comply with the Commission's
         regulations in effect for the equipment on the date of its installation.

[73 FR 4483, Jan. 25, 2008, as amended at 76 FR 67612, Nov. 2, 2011; 81 FR 90747, Dec. 15, 2016]

§ 80.275 Technical Requirements for Class A Automatic Identification System (AIS) equipment.
     (a) Prior to submitting a certification application for a Class A AIS device, the following information must be
         submitted in duplicate to the Commandant (G–PSE), U.S. Coast Guard, 2100 2nd Street, SW., Washington,
         DC 20593–0001:

           (1) The name of the manufacturer or grantee and the model number of the AIS device;

           (2) Copies of the test report and test data obtained from the test facility showing that the device
               complies with the environmental and operational requirements identified in § 80.1101.

     (b) After reviewing the information described in paragraph (a) of this section, the U.S. Coast Guard will issue a
         letter stating whether the AIS device satisfies all of the requirements specified in § 80.1101.

     (c) A certification application for an AIS device submitted to the Commission must contain a copy of the U.S.
         Coast Guard letter stating that the device satisfies all of the requirements specified in § 80.1101, a copy
         of the technical test data, and the instruction manual(s).

[69 FR 64673, Nov. 8, 2004, as amended at 74 FR 5125, Jan. 29, 2009]

§ 80.277 Ship Security Alert System (SSAS).
     (a) Vessels equipped with a Ship Security Alert System pursuant to the Safety Convention or 33 CFR 101.310
         may utilize:

           (1) Equipment that complies with RTCM 11020 (incorporated by reference, § 80.7); or

           (2) INMARSAT D + equipment; or

           (3) Equipment that complies with the technical specifications found in this subpart.

     (b) [Reserved]

[73 FR 4484, Jan. 25, 2008, as amended at 76 FR 67612, Nov. 2, 2011; 81 FR 90747, Dec. 15, 2016]

§ 80.288 Direction finding and homing equipment.
Each compulsory ship of 1,600 gross tons or over whose keel was laid:

     (a) Prior to May 25, 1980, must be equipped with radio direction finding apparatus in operating condition and
         approved by the Commission during an inspection.

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     (b) On or after May 25, 1980, must be equipped with radio direction finding apparatus having a homing
         capability in accordance with § 80.824.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 29960, June 1, 1998. Redesignated at 68 FR 46973, Aug. 7, 2003]

§ 80.289 Requirements for radio direction finder.
     (a) The radio direction finding apparatus must:

           (1) Be capable of receiving signals A1A, A2B and R2B emission, on each frequency within the band
               285–515 kHz assigned by the Radio Regulations for distress and direction finding and for maritime
               radio beacons, and be calibrated to take bearings on such signals from which the true bearing and
               direction may be determined; and

           (2) Possess a sensitivity, sufficient to permit the taking of bearings on a signal having a field strength of
               50 microvolts per meter.

     (b) The calibration of the direction finder must be verified by check bearings or by a further calibration
         whenever any changes are made in the physical or electrical characteristics or the position of any
         antennas, and whenever any changes are made in the position of any deck structures which might affect
         the accuracy of the direction finder. In addition, the calibration must be verified by check bearings at yearly
         intervals. A record of the calibrations, and of the check bearings made of their accuracy and the accuracy
         of the check bearings must be kept on board the ship for a period of not less than 1 year.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 29660, June 1, 1998. Redesignated at 68 FR 46973, Aug. 7, 2003]

§ 80.290 Auxiliary receiving antenna.
An auxiliary receiving antenna must be provided when necessary to avoid unauthorized interruption or reduced
efficiency of the required watch because the normal receiving antenna is not available because a radio direction
finder on board the vessel is operated.

[51 FR 31213, Sept. 2, 1986. Redesignated at 68 FR 46973, Aug. 7, 2003]

§ 80.291 Installation of direction finder.
     (a) The direction finder must be located to minimize interference from noise.

     (b) The direction finder antenna system must be erected so that the determination of bearings will not be
         hindered by the proximity of other antennas, cranes, wire halyards, or large metal objects.

§ 80.292 Contingent acceptance of direction finder calibration.
When the required calibration can not be made before departure from a harbor or port for a voyage in the open sea,
the direction finder may be tentatively approved on condition that the master certifies in writing that the direction
finder will be calibrated by a competent technician.

[63 FR 29660, June 1, 1998. Redesignated at 68 FR 46973, Aug. 7, 2003]

§ 80.293 Check bearings by authorized ship personnel.
The requirement for calibration by check bearings is met if:
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                                                                                                     47 CFR 80.293(a)
Stations in the Maritime Services

     (a) The required verification by check bearings are made not more than 90 days prior to the date of the annual
         detailed inspection of the radiotelegraph station;

     (b) The verification consists of a comparison of simultaneous visual and radio direction finder bearings. At
         least one comparison bearing must be taken in each quadrant, within plus or minus 20 degrees from the
         following bearings relative to the ship's heading: 45 degrees; 135 degrees; 225 degrees; 315 degrees;

     (c) The verification shows the visual bearing relative to the ship's heading and the difference between the
         visual and radio direction finder bearing, and the date each check bearing is taken.

[51 FR 31213, Sept. 2, 1986. Redesignated at 68 FR 46973, Aug. 7, 2003]

Subpart G—Safety Watch Requirements and Procedures

                                              COAST STATION SAFETY WATCHES

§ 80.301 Watch requirements.
     (a) Each public coast station licensed to operate in the band 1605–3500 kHz must monitor such frequency(s)
         as are used for working or, at the licensee's discretion, maintain a watch on 2182 kHz.

     (b) Except for distress, urgency or safety messages, coast stations must not transmit on 2182 kHz during the
         silence periods for three minutes twice each hour beginning at x h.00 and x h.30 Coordinated Universal
         Time (UTC).

     (c) Each public coast station must provide assistance for distress communications when requested by the
         Coast Guard.

[51 FR 31213, Sept. 2, 1986, as amended at 69 FR 64673, Nov. 8, 2004]

§ 80.302 Notice of discontinuance, reduction, or impairment of service involving a distress
watch.
     (a) When changes occur in the operation of a public coast station which include discontinuance, relocation,
         reduction or suspension of a watch required to be maintained on 2182 kHz or 156.800 MHz, notification
         must be made by the licensee to the nearest district office of the U.S. Coast Guard as soon as practicable.
         The notification must include the estimated or known resumption time of the watch.

     (b) [Reserved]

[68 FR 46967, Aug. 7, 2003, as amended at 69 FR 64673, Nov. 8, 2004]

§ 80.303 Watch on 156.800 MHz (Channel 16).
     (a) During its hours of operation, each coast station operating in the 156–162 MHz band and serving rivers,
         bays and inland lakes except the Great Lakes, must maintain a safety watch on the frequency 156.800
         MHz except when transmitting on 156.800 MHz.

     (b) A coast station is exempt from compliance with the watch requirement when Federal, State, or Local
         Government stations maintain a watch on 156.800 MHz over 95% of the coast station's service area. Each
         licensee exempted by rule must notify the nearest district office of the U.S. Coast Guard at least thirty

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           days prior to discontinuing the watch, or in the case of new stations, at least thirty days prior to
           commencing service. The Coast Guard may require any coast station to maintain the watch temporarily or
           permanently. The Coast Guard may also require any coast station to remain capable of either immediately
           resuming the watch or providing the Coast Guard direct dial-up access to the necessary 156.800 MHz
           transceiver at no charge so that the Coast Guard can maintain the watch.

     (c) If the government station(s) providing the 156.800 MHz watch over the service area of an exempt station
         temporarily discontinues that watch, the exempt coast station upon receiving notice of this condition
         must maintain the watch on 156.800 HMz during the discontinuance. Automated maritime
         communications systems' compliance with this requirement is limited to the use of existing facilities.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987; 63 FR 40063, July 27, 1998]

                                              SHIP STATION SAFETY WATCHES

§ 80.304 Watch requirement during silence periods.
Each ship station operating on telephony on frequencies in the band 1605–3500 kHz must maintain a watch on the
frequency 2182 kHz. This watch must be maintained at least twice each hour for 3 minutes commencing at x h.00
and x h.30 Coordinated Universal Time (UTC) using either a loudspeaker or headphone. Except for distress, urgency
or safety messages, ship stations must not transmit during the silence periods on 2182 kHz.

[69 FR 64673, Nov. 8, 2004]

§ 80.305 Watch requirements of the Communications Act and the Safety Convention.
     (a) Each ship of the United States which is equipped with a radiotelegraph station for compliance with part II
         of title III of the Communications Act or chapter IV of the Safety Convention must:

           (1) If it is not carrying MF-DSC radio equipment, keep a continuous and efficient watch on the
               radiotelephone distress frequency 2182 kHz from the principal radio operating position or the room
               from which the vessel is normally steered while being navigated in the open sea outside a harbor or
               port.

           (2) Keep a continuous and efficient watch on the VHF distress frequency 156.800 MHz from the room
               from which the vessel is normally steered while in the open sea outside a harbor or port. The watch
               must be maintained by a designated member of the crew who may perform other duties, relating to
               the operation or navigation of the vessel, provided such other duties do not interfere with the
               effectiveness of the watch. Use of a properly adjusted squelch or brief interruptions due to other
               nearby VHF transmissions are not considered to adversely affect the continuity or efficiency of the
               required watch on the VHF distress frequency. This watch need not be maintained by vessels subject
               to the Bridge-to-Bridge Act and participating in a Vessel Traffic Services (VTS) system as required or
               recommended by the U.S. Coast Guard, when an efficient listening watch is maintained on both the
               bridge-to-bridge frequency and a separate assigned VTS frequency.

     (b) Each cargo ship of the United States which is equipped with a radiotelephone station for compliance with
         part II of title III of the Communications Act or chapter IV of the Safety Convention must while being
         navigated outside of a harbor or port:

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           (1) If it is not carrying MF–DSC radio equipment, keep a continuous watch on 2182 kHz in the room from
               which the vessel is normally steered while at sea, whenever such station is not being used for
               authorized traffic. Such watch must be maintained by at least one officer or crewmember who may
               perform other duties relating to the operation or navigation of the vessel, provided such other duties
               do not interfere with the watch.

           (2) Keep a continuous watch on 156.800 MHz from the room from which the vessel is normally steered.
               The watch must be maintained by a crewmember who may perform other duties, relating to the
               operation or navigation of the vessel, provided such other duties do not interfere with the watch. Use
               of properly adjusted squelch of brief interruptions due to other nearby VHF transmissions are not
               considered to adversely affect the watch. This watch need not be maintained by vessels subject to
               the Bridge-to-Bridge Act and participating in a Vessel Traffic Services (VTS) system when a watch is
               maintained on both the bridge-to-bridge frequency and a VTS frequency.

     (c) Each vessel of the United States transporting more than six passengers for hire, which is equipped with a
         radiotelephone station for compliance with 47 U.S.C. 381–386 but which is not carrying MF-DSC radio
         equipment, must, while being navigated in the open sea or any tidewater within the jurisdiction of the
         United States adjacent or contiguous to the open sea, keep a continuous watch on 2182 kHz while the
         vessel is beyond VHF communication range of the nearest VHF coast station, whenever the
         radiotelephone station is not being used for authorized traffic. A VHF watch must be kept on 156.800
         MHz whenever such station is not being used for authorized traffic. The VHF watch must be maintained at
         the vessel's steering station actually in use by the qualified operator as defined by § 80.157 or by a
         crewmember who may perform other duties relating to the operation or navigation of the vessel, provided
         such other duties do not interfere with the watch. The use of a properly adjusted squelch is not
         considered to adversely affect the watch. The VHF watch need not be maintained by vessels subject to
         the Bridge-to-Bridge Act and participating in a Vessel Traffic Services (VTS) system when an efficient
         listening watch is maintained on both the bridge-to-bridge frequency and a VTS frequency.

[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46967, Aug. 7, 2003; 69 FR 64673, Nov. 8, 2004; 73 FR 4484, Jan. 25, 2008; 76
FR 67612, Nov. 2, 2011]

§ 80.307 Compulsory use of radiotelegraph auto alarm.
The radiotelegraph auto alarm required on a cargo ship subject to the radiotelegraph provisions of part II of title III
of the Communications Act or the Safety Convention must be in operation, connected to the main antenna and
adjusted for optimum efficiency at all times while the ship is being navigated in the open sea when a radio officer is
not listening on the frequency 500 kHz, except under the circumstances as set forth in § 80.306(b).

§ 80.308 Watch required for subpart T vessels on the Great Lakes.
     (a) Each ship of the United States that is equipped with a radiotelephone station for compliance with subpart
         T of this part must when underway keep a watch on:

           (1) 156.800 MHz on board a vessel 20 meters (65 feet) and over in length, a vessel engaged in towing
               (See § 80.951(b)), or a vessel carrying more than 6 passengers for hire. This watch must be
               maintained whenever the station is not being used for authorized traffic. However, a watch on
               156.800 MHz need not be maintained by a vessel maintaining a watch on the bridge-to-bridge
               frequency 156.650 MHz and participating in a Vessel Traffic Services (VTS) system and maintaining
               a watch on the specified VTS frequency.

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           (2) 156.650 MHz on board a vessel 38 meters (124 feet) and over in length, a vessel engaged in towing
               (See § 80.951(b)), or a vessel carrying more than six passengers for hire. This watch must be
               maintained continuously and effectively. Sequential monitoring is not sufficient. Portable VHF
               equipment may be used to meet this requirement. Vessels are exempted from this requirement while
               transiting the St. Lawrence Seaway and complying with the Joint Regulations of the St. Lawrence
               Seaway Authority and St. Lawrence Seaway Development Corporation between the lower exit of St.
               Lambert Lock at Montreal and Crossover Island, New York and in the Welland Canal and approaches
               between Calling in Point No. 15 and No. 16.

     (b) The watch must be maintained by the master, or person designated by the master, who may perform other
         duties provided they do not interfere with the effectiveness of the watch.

[53 FR 17052, May 13, 1988, as amended at 88 FR 77220, Nov. 9, 2023]

§ 80.309 Watch required by the Bridge-to-Bridge Act.
In addition to the watch requirement contained in § 80.148, all vessels subject to the Bridge-to-Bridge Act must keep
a watch on the designated navigational frequency. The watch must be maintained by the master or person in charge
of the vessel or the person designated by the master or person in charge to pilot or direct the movement of the
vessel. The person standing watch may perform other duties provided such other duties do not interfere with the
watch.

[51 FR 31213, Sept. 2, 1986, as amended at 57 FR 61012, Dec. 23, 1992]

§ 80.310 Watch required by voluntary vessels.
Voluntary vessels not equipped with DSC must maintain a watch on 2182 kHz and on 156.800 MHz (Channel 16)
whenever the vessel is underway and the radio is not being used to communicate. Noncommercial vessels, such as
recreational boats, may alternatively maintain a watch on 156.450 MHz (Channel 9) in lieu of VHF Channel 16 for
call and reply purposes. Voluntary vessels equipped with VHF–DSC equipment must maintain a watch on 2182 kHz
and on either 156.525 MHz (Channel 70) or VHF Channel 16 aurally whenever the vessel is underway and the radio
is not being used to communicate. Voluntary vessels equipped with MF–HF DSC equipment must have the radio
turned on and set to an appropriate DSC distress calling channel or one of the radiotelephone distress channels
whenever the vessel is underway and the radio is not being used to communicate. Voluntary vessels equipped with
a GMDSS-approved Inmarsat system must have the unit turned on and set to receive calls whenever the vessel is
underway and the radio is not being used to communicate.

[76 FR 67612, Nov. 2, 2011]

                               DISTRESS, ALARM, URGENCY AND SAFETY PROCEDURES

§ 80.311 Authority for distress transmission.
A mobile station in distress may use any means at its disposal to attract attention, make known its position, and
obtain help. A distress call and message, however, must be transmitted only on the authority of the master or
person responsible for the mobile station. No person shall knowingly transmit, or cause to be transmitted, any false
or fraudulent signal of distress or related communication.

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§ 80.312 Priority of distress transmissions.
The distress call has absolute priority over all other transmissions. All stations which hear it must immediately
cease any transmission capable of interfering with the distress traffic and must continue to listen on the frequency
used for the emission of the distress call. This call must not be addressed to a particular station. Acknowledgement
of receipt must not be given before the distress message which follows it is sent.

§ 80.313 Frequencies for use in distress.
The frequencies specified in the bands below are for use by mobile stations in distress. The conventional emission
is shown. When a ship station cannot transmit on the designated frequency or the conventional emission, it may
use any available frequency or emission. Frequencies for distress and safety calling using digital selective calling
techniques are listed in § 80.359(b). Distress and safety NB-DP frequencies are indicated by footnote 2 in §
80.361(b).

        Frequency band                  Emission                          Carrier frequency
 1615–3500 kHz                    J3E                   2182 kHz.
 118–136 MHz                      A3E                   121.500 MHz.
 156–162 MHz                      F3E, PON              156.800 MHz 156.750 MHz.
 243 MHz                          A3N                   243.000 MHz.

The maximum transmitter power obtainable may be used.

[51 FR 31213, Sept. 2, 1986; 51 FR 34984, Oct. 1, 1986; 68 FR 46968, Aug. 7, 2003; 73 FR 4485, Jan. 25, 2008]

§ 80.314 Distress communications.
     (a) The international radiotelephone distress signal consists of the word MAYDAY, pronounced as the French
         expression “m'aider”.

     (b) These distress signals indicate that a mobile station is threatened by grave and imminent danger and
         requests immediate assistance.

     (c) The radiotelephone distress call consists of:

           (1) The distress signal MAYDAY spoken three times;

           (2) The words THIS IS;

           (3) The call sign (or name, if no call sign assigned) of the mobile station in distress, spoken three times;

           (4) Particulars of the station's position;

           (5) The nature of the distress;

           (6) The kind of assistance desired; and

           (7) Any other information which might facilitate rescue, for example, the length, color, and type of vessel,
               or number of persons on board.

     (d) The procedures for canceling false distress alerts are contained in § 80.335.

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[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46968, Aug. 7, 2003; 73 FR 4485, Jan. 25, 2008]

§ 80.317 Radiotelegraph and radiotelephone alarm signals.
     (a) The international radiotelegraph alarm signal consists of a series of twelve dashes sent in one minute, the
         duration of each dash being four seconds and the duration of the interval between consecutive dashes
         one second. The purpose of this special signal is the actuation of automatic devices giving the alarm to
         attract the attention of the operator when there is no listening watch on the distress frequency.

     (b) The international radiotelephone alarm signal consists of two substantially sinusoidal audio frequency
         tones transmitted alternately. One tone must have a frequency of 2200 Hertz and the other a frequency of
         1300 Hertz, the duration of each tone being 250 milliseconds. When generated by automatic means, the
         radiotelephone alarm signal must be transmitted continuously for a period of at least 30 seconds, but not
         exceeding one minute; when generated by other means, the signal must be transmitted as continuously
         as practicable over a period of approximately one minute. The purpose of this special signal is to attract
         the attention of the person on watch or to actuate automatic devices giving the alarm.

§ 80.318 Use of alarm signals.
     (a) The radiotelegraph or radiotelephone alarm signal, as appropriate, must only be used to announce:

           (1) That a distress call or message is about to follow;

           (2) The transmission of an urgent cyclone warning. In this case the alarm signal may only be used by
               coast stations authorized by the Commission to do so; or

           (3) The loss of a person or persons overboard. In this case the alarm signal may only be used when the
               assistance of other ships is required and cannot be satisfactorily obtained by the use of the urgency
               signal only, but the alarm signal must not be repeated by other stations. The message must be
               preceded by the urgency signal.

     (b) In cases described in paragraphs (a)(2) and (3) of this section, the transmission of the warning or
         message by radiotelegraphy must not begin until two minutes after the end of the radiotelegraph alarm
         signal.

§ 80.319 Radiotelegraph distress call and message transmission procedure.
     (a) The radiotelegraph distress procedure consists of the following six steps: however, when time is vital, the
         first and second steps may be omitted. These two steps of the distress procedure may also be omitted in
         circumstances when transmission of the alarm signal is considered unnecessary:

           (1) The radiotelegraph alarm signal;

           (2) The distress call and an interval of two minutes;

           (3) The distress call;

           (4) The distress message;

           (5) Two dashes of ten to fifteen seconds each;

           (6) The call sign of the mobile station in distress.

     (b) The radiotelegraph distress transmissions must be sent by means of the international Morse code at a
         speed not exceeding 16 words per minute nor less than 8 words per minute.

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     (c) The distress message, preceded by the distress call, must be repeated at intervals until an answer is
         received. The radiotelegraph alarm signal may also be repeated, if necessary.

     (d) The transmissions under paragraphs (a) (5) and (6) of this section, which are to permit direction finding
         stations to determine the position of the station in distress, may be repeated at frequent intervals if
         necessary.

     (e) When the mobile station in distress receives no answer to a distress message transmitted on the distress
         frequency, the message may be repeated on any other available frequency on which attention might be
         attracted.

[51 FR 31213, Sept. 2, 1986, as amended at 69 FR 64674, Nov. 8, 2004]

§ 80.320 Radiotelephone distress call and message transmission procedure.
     (a) The radiotelephone distress procedure consists of:

           (1) The radiotelephone alarm signal (whenever possible);

           (2) The distress call;

           (3) The distress message.

     (b) The DSC distress procedure consists of:

           (1) Transmission by a mobile unit in distress;

           (2) Reception;

           (3) Acknowledgement of distress calls;

           (4) Distress relays.

     (c) Radiotelephone distress transmissions must be made slowly and distinctly, each word being clearly
         pronounced to facilitate transcription.

     (d) After the transmission by radiotelephony of its distress message, the mobile station may be requested to
         transmit suitable signals followed by its call sign or name, to permit direction-finding stations to
         determine its position. This request may be repeated at frequent intervals if necessary.

     (e) The distress message, preceded by the distress call, must be repeated at intervals until an answer is
         received. This repetition must be preceded by the radiotelephone alarm signal whenever possible.

     (f) When the mobile station in distress receives no answer to a distress message transmitted on the distress
         frequency, the message may be repeated on any other available frequency on which attention might be
         attracted.

[51 FR 31213, Sept. 2, 1986, as amended]

§ 80.321 Acknowledgement of receipt of distress message.
     (a) Stations of the maritime mobile service which receive a distress message from a mobile station which is
         beyond any possible doubt in their vicinity must immediately acknowledge receipt. However, in areas
         where reliable communication with one or more coast stations is practicable, ship stations may defer this
         acknowledgement for a short interval so that a coast station may acknowledge receipt.

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     (b) Stations of the maritime mobile service which receive a distress message from a mobile station which
         beyond any possible doubt is not in their vicinity, must allow a short interval of time to elapse before
         acknowledging receipt of the message in order to permit stations nearer to the mobile station in distress
         to acknowledge receipt without interference.

§ 80.322 Form of acknowledgement.
     (a) The acknowledgement of receipt of a radiotelegraph distress message is transmitted in the following
         form:

           (1) The distress signal SOS;

           (2) The call sign of the station sending the distress message, sent three times;

           (3) The word DE;

           (4) The call sign of the station acknowledging receipt, sent three times;

           (5) The group RRR;

           (6) The message signal SOS.

     (b) The acknowledgement of receipt of a radiotelephone distress message is transmitted in the following
         form:

           (1) The distress signal MAYDAY;

           (2) The call sign or other identification of the station sending the distress message, spoken three times;

           (3) The words THIS IS;

           (4) The call sign or other identification of the station acknowledging receipt, spoken three times;

           (5) The word RECEIVED;

           (6) The distress signal MAYDAY.

§ 80.323 Information furnished by an acknowledging station.
     (a) Every mobile station which acknowledges receipt of a distress message must on the order of the master
         or person responsible for the ship, aircraft, or other vehicle carrying such mobile station, transmit as soon
         as possible the following information in the order shown:

           (1) Its identifier;

           (2) Its position;

           (3) The speed at which it is proceeding towards, and the approximate time it will take to reach the
               mobile station in distress.

     (b) Before sending this message, the station must ensure that it will not interfere with the emissions of other
         stations better situated to render immediate assistance to the station in distress.

§ 80.324 Transmission of distress message by station not itself in distress.
     (a) A mobile station or a land station which learns that a mobile station is in distress must transmit a distress
         message in any of the following cases:

           (1) When the station in distress cannot transmit the distress message.
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           (2) When the master or person responsible for the ship, aircraft, or other vehicle not in distress, or for the
               land station, believes that further help is necessary.

           (3) When, although not in a position to assist, it has heard a distress message which has not been
               acknowledged. When a mobile station transmits such a distress message, it must notify the
               authorities who may be able to assist.

     (b) Transmission must be made on the international distress frequencies or on any other available frequency
         on which attention might be attracted.

     (c) Transmission of the distress message must always be preceded by the call indicated below, which must
         itself be preceded whenever possible by the radiotelegraph or radiotelephone alarm signal. This call
         consists of:

           (1) When radiotelegraphy is used:

                 (i)   The signal DDD SOS SOS SOS DDD:

                (ii) The word DE;

                (iii) The call sign of the transmitting station, sent three times.

           (2) When radiotelephony is used:

                 (i)   The signal MAYDAY RELAY, spoken three times;

                (ii) The words THIS IS;

                (iii) The call sign or other identification of the transmitting station, spoken three times.

     (d) When the radiotelegraph alarm signal is used, an interval of two minutes must be allowed, whenever this
         is considered necessary, before the transmission of the call mentioned in paragraph (c)(1) of this section.

§ 80.325 Control of distress traffic.
     (a) Distress traffic consists of all messages relating to the immediate assistance required by the mobile
         station in distress. In distress traffic, the distress signal must be sent before the call and at the beginning
         of the preamble of any radiotelegram.

     (b) The control of distress traffic is the responsibility of the mobile station in distress or of the station which
         has sent the distress message. These stations may delegate the control of the distress traffic to another
         station.

     (c) The station in distress or the station in control of distress traffic may impose silence either on all stations
         of the mobile service in the area or on any station which interferes with the distress traffic. It must
         address these instructions “to all stations” or to one station only, according to circumstances. In either
         case, it must use one of the following signals which are reserved for use by the mobile station in distress
         and for the station controlling distress traffic:

           (1) In radiotelegraphy, the abbreviation QRT, followed by the distress signal SOS.

           (2) In radiotelephony, the signal SEELONCE MAYDAY.

     (d) If essential, any station of the mobile service near the ship, aircraft, or other vehicle in distress may also
         impose silence. It must use for this purpose:

           (1) In radiotelegraphy, the abbreviation QRT, followed by the word DISTRESS and its own call sign;

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           (2) In radiotelephony, the word SEELONCE, followed by the word DISTRESS and its own call sign or other
               identification.

§ 80.326 Notification of resumption of normal working.
     (a) When distress traffic has ceased, or when complete silence is no longer necessary on a frequency which
         has been used for distress traffic, the station which has controlled this traffic must transmit on that
         frequency a message addressed “to all stations” indicating that normal working may be resumed.

           (1) In radiotelegraphy, this message consists of:

                 (i)   The distress signal SOS;

                (ii) The call “to all stations” (CQ), sent three times;

                (iii) The word DE;

                (iv) The call sign of the station sending the message;

                (v) The time of handing in the message;

                (vi) The name and call sign of the mobile station which was in distress;

                (vii) The service abbreviation QUM.

           (2) In radiotelephony, this message consists of:

                 (i)   The distress signal MAYDAY;

                (ii) The call “Hello all stations”, spoken three times;

                (iii) The words THIS IS;

                (iv) The call sign or other identification of the station sending the message;

                (v) The time of handing in of the message;

                (vi) The name and call sign of the mobile station which was in distress;

                (vii) The words SEELONCE FEENEE OR PRU-DONCE.

     (b) Until they receive the foregoing message indicating that normal or limited working may be resumed, all
         stations which are aware of the distress traffic, and which are not taking part in it, are forbidden to
         transmit on the frequencies on which the distress traffic is taking place.

§ 80.327 Urgency signals and messages.
     (a) The urgency signal indicates that the calling station has a very urgent message to transmit concerning the
         safety of a ship, aircraft, or other vehicle, or the safety of a person. The urgency signal must be sent only
         on the authority of the master or person responsible for the mobile station.

     (b) In radiotelegraphy, the urgency signal consists of three repetitions of the group XXX, sent with the
         individual letters of each group, and the successive groups clearly separated from each other. It must be
         transmitted before the call.

     (c) In radiotelephony, the urgency signal consists of three oral repetitions of the group of words PAN PAN
         transmitted before the call.

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     (d) The urgency signal has priority over all other communications except distress. All mobile and land
         stations which hear it must not interfere with the transmission of the message which follows the urgency
         signal.

     (e) The urgency signal and call, and the message following it, must be sent on one of the international
         distress frequencies. Stations which cannot transmit on a distress frequency may use any other available
         frequency on which attention might be attracted.

     (f) Mobile stations which hear the urgency signal must continue to listen for at least three minutes. At the
         end of this period, if no urgency message has been heard, they may resume their normal service.
         However, land and mobile stations which are in communication on frequencies other than those used for
         the transmission of the urgency signal and of the call which follows it may continue their normal work
         without interruption provided the urgency message is not addressed “to all stations”.

     (g) When the urgency signal has been sent before transmitting a message “to all stations” which calls for
         action by the stations receiving the message, the station responsible for its transmission must cancel it
         as soon as it knows that action is no longer necessary. This message of cancellation must likewise be
         addressed “to all stations”.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987; 73 FR 4485, Jan. 25, 2008]

§ 80.329 Safety signals and messages.
     (a) The safety signal indicates that the station is about to transmit a message concerning the safety of
         navigation or giving important meteorological warnings.

     (b) In radiotelegraphy, the safety signal consists of three repetitions of the group TTT, sent with the individual
         letters of each group, and the successive groups clearly separated from each other. It must be sent before
         the call.

     (c) In radiotelephony, the safety signal consists of the word SECURITE, pronounced as in French, spoken three
         times and transmitted before the call.

     (d) The safety signal and call must be sent on one of the international distress frequencies (2182 kHz or
         156.8 MHz radiotelephone). Stations which cannot transmit on a distress frequency may use any other
         available frequency on which attention might be attracted.

     (e) The safety signal and call must be followed by the safety message. Where practicable, the safety
         message should be sent on a working frequency, and a suitable announcement to this effect must be
         made at the end of the call.

     (f) Messages about meteorological warnings, of cyclones, dangerous ice, dangerous wrecks, or any other
         imminent danger to marine navigation must be preceded by the safety signal.

     (g) Stations hearing the safety signal must not make any transmission likely to interfere with the message.

[51 FR 31213, Sept. 2, 1986, as amended at 69 FR 64674, Nov. 8, 2004; 73 FR 4485, Jan. 25, 2008]

§ 80.331 Bridge-to-bridge communication procedure.
     (a) Vessels subject to the Bridge-to-Bridge Act transmitting on the designated navigational frequency must
         conduct communications in a format similar to those given below:

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           (1) This is the (name of vessel). My position is (give readily identifiable position, course and speed)
               about to (describe contemplated action). Out.

           (2) Vessel off (give a readily identifiable position). This is (name of vessel) off (give a readily identifiable
               position). I plan to (give proposed course of action). Over.

           (3) (Coast station), this is (vessel's name) off (give readily identifiable position). I plan to (give proposed
               course of action). Over.

     (b) Vessels acknowledging receipt must answer “(Name of vessel calling). This is (Name of vessel
         answering). Received your call,” and follow with an indication of their intentions. Communications must
         terminate when each ship is satisfied that the other no longer poses a threat to its safety and is ended
         with “Out”.

     (c) Use of power greater than 1 watt in a bridge-to-bridge station shall be limited to the following three
         situations:

           (1) Emergency.

           (2) Failure of the vessel being called to respond to a second call at low power.

           (3) A broadcast call as in paragraph (a)(1) of this section in a blind situation, e.g., rounding a bend in a
               river.

§ 80.332 Equipment to aid search and rescue operations.
     (a) Survival craft stations may transmit distress, urgency and safety signals, calls and messages.

     (b) EPIRB's may transmit only in accordance with the requirements of subparts V and X of this part.

§ 80.333 Stations in the maritime mobile-satellite service.
The provisions of §§ 80.311 and 80.324 apply to the operations of ship earth stations in the maritime mobile-
satellite service.

§ 80.334 False distress alerts.
A distress alert is false if it was transmitted without any indication that a mobile unit or person was in distress and
required immediate assistance. Transmitting a false distress alert is prohibited and may be subject to the provisions
of part 1, subpart A of this chapter if that alert:

     (a) Was transmitted intentionally;

     (b) Was not cancelled in accordance with § 80.335;

     (c) Could not be verified as a result of either the ship's failure to keep watch on appropriate frequencies in
         accordance with § 80.1123 or subpart G of this part, or its failure to respond to calls from the U.S. Coast
         Guard;

     (d) Was repeated; or

     (e) Was transmitted using a false identity.

[68 FR 46968, Aug. 7, 2003]

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                                                                                                             47 CFR 80.335
Stations in the Maritime Services

§ 80.335 Procedures for canceling false distress alerts.
If a distress alert is inadvertently transmitted, the following steps shall be taken to cancel the distress alert.

     (a) VHF Digital Selective Calling.

           (1) Reset the equipment immediately;

           (2) Immediately cancel the distress alert orally over the telephony distress traffic channel associated
               with each DSC channel on which the distress alert was transmitted;

           (3) Set to Channel 16; and

           (4) Transmit a broadcast message to “All stations” giving the ship's name, call sign or registration
               number, and MMSI, and cancel the false distress alert.

     (b) MF Digital Selective Calling.

           (1) Reset the equipment immediately;

           (2) Immediately cancel the distress alert orally over the telephony distress traffic channel associated
               with each DSC channel on which the distress alert was transmitted; and

           (3) Tune for radiotelephony transmission on 2182 kHz; and

           (4) Transmit a broadcast message to “All stations” giving the ship's name, call sign or registration
               number, and MMSI, and cancel the false distress alert.

     (c) HF Digital Selective Calling;

           (1) Reset the equipment immediately;

           (2) Immediately cancel the distress alert orally over the telephony distress traffic channel associated
               with each DSC channel on which the distress alert was transmitted;

           (3) Tune for radiotelephony on the distress and safety frequency in each band in which a false distress
               alert was transmitted; and

           (4) Transmit a broadcast message to “All stations” giving the ship's name, call sign or registration
               number, and MMSI, and cancel the false distress alert frequency in each band in which a false
               distress alert was transmitted.

     (d) INMARSAT ship earth station. Immediately notify the appropriate rescue coordination center that the alert
         is cancelled by sending a distress priority message by way of the same land earth station through which
         the false distress alert was sent. Provide ship name, call sign or registration number, and INMARSAT
         identity with the cancelled alert message.

     (e) EPIRB. If for any reason an EPIRB is activated inadvertently, immediately contact the nearest U.S. Coast
         Guard unit or appropriate rescue coordination center by telephone, radio or ship earth station and cancel
         the distress alert.

     (f) General and other distress alerting systems. Notwithstanding paragraphs (a) through (e) of this section,
         ships may use additional appropriate means available to them to inform the nearest appropriate U.S.
         Coast Guard rescue coordination center that a false distress alert has been transmitted and should be
         cancelled.

47 CFR 80.335(f) (enhanced display)                                                                         page 109 of 268
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                                                                                                           47 CFR 80.351
Stations in the Maritime Services

[68 FR 46968, Aug. 7, 2003, as amended at 73 FR 4485, Jan. 25, 2008]

Subpart H—Frequencies

                                              RADIOTELEGRAPHY AND DATA

§ 80.351 Scope.
The following sections describe the carrier frequencies and general uses of radiotelegraphy and data transmission
with respect to the following:

     (a) Distress, urgency, safety, call and reply.

     (b) Working.

     (c) Digital selective calling (DSC).

     (d) Narrow-band direct-printing (NB–DP).

     (e) Facsimile.

     (f) VHF–FM digital small message services (VDSMS).

[81 FR 90747, Dec. 15, 2016]

§ 80.353 [Reserved]
§ 80.355 Distress, urgency, safety, call and reply Morse code frequencies.
This section describes the distress, urgency, safety, call and reply carrier frequencies assignable to stations for
Morse code radiotelegraphy.

     (a) Frequencies in the 100–160 kHz band. The international calling frequency in the 100–160 kHz band is 143
         kHz using A1A or J2A emission. When a ship station operating in the 100–160 kHz band desires to
         communicate with a coast station, it must call on the frequency 143 kHz unless the International List of
         Coast Stations provides otherwise. Coast stations must reply on their normal working frequency in this
         band. Only individual calls, replies to such calls, and transmission of signals preparatory to traffic may be
         transmitted on 143 kHz.

     (b) Frequencies in the 2000–27500 kHz band —

           (1) Ship station frequencies. The following table describes the calling frequencies in the 4000–27500
               kHz band which are available for use by authorized ship stations equipped with crystal-controlled
               oscillators for A1A, J2A, J2B, or J2D radiotelegraphy. There are two series of frequencies for
               worldwide use and two series of frequencies for each geographic region. Ship stations with
               synthesized transmitters may operate on every full 100 Hz increment in the 0.5 kHz channel for the
               frequencies listed, except for 100 Hz above and below those designated for worldwide use. During
               normal business hours when not communicating on other frequencies, all U.S. coast radiotelegraph
               stations must monitor the worldwide frequencies and the initial calling frequencies for the region in
               which it is located. The specific frequencies which must be monitored by a coast station will vary
               with propagation conditions. The calling frequencies which are routinely monitored by specific coast
               stations can be determined by reference to the ITU publication entitled “List of Coast Stations.” Initial
47 CFR 80.355(b)(1) (enhanced display)                                                                    page 110 of 268
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                calls by ship stations must be made on the appropriate initial calling frequency first. Calls on the
                worldwide frequencies may be made only after calls on the appropriate initial calling frequency are
                unsuccessful.

47 CFR 80.355(b)(1) (enhanced display)                                                                  page 111 of 268
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                                                                                                47 CFR 80.355(b)(1)
Stations in the Maritime Services

                                                         Ship Morse Calling Frequencies (kHz)

                      ITU                                               ITU
Region:
   Worldwide           3 4184.0 6276.0 8368.0 12552.0 16736.0 22280.5   C     25172.0
                       4 4184.5 6276.5 8369.0 12553.5 16738.0 22281.0   C     25172.0
   Atlantic:
          Initial      1 4182.0 6277.0 8366.0 12550.0 16734.0 22279.5   A     25171.5
          Alternate    2 4182.5 6277.5 8366.5 12550.5 16734.5 22280.0   A     25171.5
   Caribbean:
          Initial      1 4182.0 6277.0 8366.0 12550.0 16734.0 22279.5   A     25171.5
          Alternate    2 4182.5 6277.5 8366.5 12550.5 16734.5 22280.0   A     25171.5
   Gulf-Mexico:
          Initial      5 4183.0 6278.0 8367.0 12551.0 16735.0 22281.5   A     25171.5
          Alternate    6 4183.5 6278.5 8367.5 12551.5 16735.5 22282.0   A     25171.5
   N Pacific:
          Initial      7 4185.0 6279.0 8368.5 12552.5 16736.5 22282.5   B     25172.5
          Alternate    8 4185.5 6279.5 8369.5 12553.0 16737.0 22283.0   B     25172.5
   S Pacific:
          Initial      9 4186.0 6280.0 8370.0 12554.0 16737.5 22283.5   B     25172.5
          Alternate   10 4186.5 6280.5 8370.5 12554.5 16738.5 22284.0   B     25172.5

47 CFR 80.355(b)(1) (enhanced display)                                                             page 112 of 268
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                                                                                                             47 CFR 80.355(b)(2)
Stations in the Maritime Services

           (2) Coast Station frequencies. Coast stations may use any working carrier frequency for distress, safety
               and calling listed in § 80.357(b)(1) which is not identified with a specific use.

     (c) Frequencies in the VHF bands.

           (1) Survival craft stations using 121.500 MHz may be assigned A3N emission for radiobeacon purposes.

           (2) EPIRB stations may be assigned 121.500 MHz and 243 MHz using A3E, A3X and NON emission or
               406.0–406.1 MHz using G1D emission to aid search and rescue operations. See subpart V of this
               part.

[51 FR 31213, Sept. 2, 1986; 51 FR 34984, Oct. 1, 1986; 52 FR 35245, Sept. 18, 1987; 56 FR 9886, Mar. 8, 1991; 56 FR 11516, Mar.
19, 1991; 68 FR 46969, Aug. 7, 2003; 69 FR 64674, Nov. 8, 2004]

§ 80.357 Working frequencies for Morse code and data transmission.
This section describes the working frequencies assignable to maritime stations for A1A, J2A, J2B (2000–27500
kHz band only), or J2D (2000–27500 kHz band only) radiotelegraphy.

     (a) Ship station frequencies —

           (1) Frequencies in the 100–160 kHz band. The following table describes the working carrier frequencies
               in the 100–160 kHz band which are assignable to ship stations. A ship station may also transmit on
               a radiotelegraphy working channel of a coast station within the 100–160 kHz band when directed to
               do so by the coast station provided interference is not caused to any land, fixed, broadcast, or
               radiolocation station.

                                                                100–160 (kHz)
                                                                                                                   152
                                                                                                                   153
                                                                                                                   154
                                                                                                                   155
                                                                                                                   156
                                                                                                                   157
                                                                                                                   158

           (2) Frequencies in the 405–525 kHz band. The following table describes the working carrier frequencies
               in the 405–525 kHz band which are assignable to ship stations. A ship station may transmit on a
               radiotelegraphy working channel of a coast station in the 415–490 kHz band when directed to do so
               by the coast station.

                                                                405–525 (kHz)
                                                                                                               1
                                                                                                                   410
                                                                                                                   425
                                                                                                                   454
                                                                                                                   468
                                                                                                                   480

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                                                            405–525 (kHz)
                                                                                                      2
                                                                                                          512
                                                                                                      3
                                                                                                          518

                1 The frequency 410 kHz may be used on a secondary basis for the transmission of
                radiodetermination information and for transmitting by radiotelegraph radiodetermination related
                messages to direction-finding stations.

                2
                  The frequency 512 kHz may be used as a supplementary calling frequency when 500 kHz is used
                for distress, safety and urgency communications. The use of the 512 kHz as a working frequency is
                prohibited in areas where it is used as a supplementary calling frequency when 500 kHz is used for
                distress, safety, and urgency communications.

                3
                 The frequency 518 kHz is a receive only frequency by ship stations. It is used by U.S. Coast Guard
                coast stations for NB-DP transmissions of meteorological and navigational warnings to ships.

           (3) Frequencies in the 2000–27500 kHz band. This paragraph describes the working frequencies and
               Channel Series in the 2000–27500 kHz band which are assignable to ship stations.

                 (i)   Two Channel Series will be assigned for routine use to each ship station. Frequencies from any
                       other Channel Series may be used if the frequencies in the assigned Channel Series are not
                       adequate for communications.

47 CFR 80.357(a)(3)(i) (enhanced display)                                                                 page 114 of 268
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                                                                                                47 CFR 80.357(a)(3)(i)
Stations in the Maritime Services

                                                         Ship Morse Working Frequencies (kHz)

Channel Series:
   W1             4187.0 6285.0 8342.0 12422.0 16619.0 22242.0 25161.5
                                8343.5 12453.0 16650.0 22273.0
                                               16681.0
   W2             4187.5 6285.5 8342.5 12422.5 16619.5 22242.5 25162.0
                                8344.0 12453.5 16650.5 22273.5
                                               16681.5
   W3             4188.0 6286.0 8343.0 12423.0 16620.0 22243.0 25162.5
                                8344.5 12454.0 16651.0 22274.0
                                               16682.0
   W4             4188.5 6286.5 8343.5 12423.5 16620.5 22243.5 25163.0
                                8345.0 12454.5 16651.5 22274.5
                                               16682.5
   W5             4189.0 6287.0 8344.0 12424.0 16621.0 22244.0 25163.5
                                8345.5 12455.0 16652.0 22275.0
                                               16683.0
   W6             4189.5 6287.5 8344.5 12424.5 16621.5 22244.5 25164.0
                                8346.0 12455.5 16652.5 22275.5
                                               16619.0
   W7             4190.0 6288.0 8345.0 12425.0 16622.0 22245.0 25164.5
                                8346.5 12456.0 16653.0 22276.0
                                               16619.5
   W8             4190.5 6288.5 8345.5 12425.5 16622.5 22245.5 25165.0
                                8347.0 12456.5 16653.5 22276.5
                                               16620.0
   W9             4191.0 6289.0 8346.0 12426.0 16623.0 22246.0 25165.5
                                8347.5 12457.0 16654.0 22277.0
                                               16620.5
   W10            4191.5 6289.5 8346.5 12426.5 16623.5 22246.5 25166.0
                                8348.0 12457.5 16654.5 22270.5
                                               16621.0
   W11            4192.0 6290.0 8347.0 12427.0 16624.0 22247.0 25166.5
                                8348.5 12458.0 16655.0 22278.0
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                                              16621.5
   W12         4192.5 6290.5 8347.5 12427.5 16624.5 22247.5 25167.0
                              8349.0 12458.5 16655.5 22278.5
                                              16622.0
   W13         4193.0 6291.0 8348.0 12428.0 16625.0 22248.0 25167.5
                              8349.5 12459.0 16656.0 22279.0
                                              16622.5
   W14         4193.5 6291.5 8348.5 12428.5 16625.5 22248.5 25168.0
                              8350.0 12459.5 16656.5 22242.0
                                              16623.0
   W15         4194.0 6292.0 8349.0 12429.0 16626.0 22249.0 25168.5
                              8350.5 12460.0 16657.0 22242.5
                                              16623.5
   W16         4194.5 6292.5 8349.5 12429.5 16626.5 22249.5 25169.0
                              8351.0 12460.5 16657.5 22243.0
                                              16624.0
   W17         4195.0 6293.0 8350.0 12430.0 16627.0 22250.0 25169.5
                              8351.5 12461.0 16658.0 22243.5
                                              16624.5
   W18         4195.5 6293.5 8350.5 12430.5 16627.5 22250.5 25170.0
                              8352.0 12461.5 16658.5 22244.0
                                              16625.0
   W19         4196.0 6294.0 8351.0 12431.0 16628.0 22251.0 25170.5
                              8352.5 12462.0 16659.0 22244.5
                                              16625.5
   W20         4196.5 6294.5 8351.5 12431.5 16628.5 22251.5 25171.0
                              8353.0 12462.5 16659.5 22245.0
                                              16626.0
   W21         4197.0 6295.0 8352.0 12432.0 16629.0 22252.0 25161.5
                              8353.5 12463.0 16660.0 22245.5
                                              16626.5
   W22         4197.5 6295.5 8352.5 12432.5 16629.5 22252.5 25162.0
                              8354.0 12463.5 16660.5 22246.0
                                              16627.0
   W23         4198.0 6296.0 8353.0 12433.0 16630.0 22253.0 25162.5

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                                                                      47 CFR 80.357(a)(3)(i)
Stations in the Maritime Services

                              8354.5 12464.0 16661.0 22246.5
                                              16627.5
   W24         4198.5 6296.5 8353.5 12433.5 16630.5 22253.5 25163.0
                              8355.0 12464.5 16661.5 22247.0
                                              16628.0
   W25         4199.0 6297.0 8354.0 12434.0 16631.0 22254.0 25163.5
                              8355.5 12465.0 16662.0 22247.5
                                              16628.5
   W26         4199.5 6297.5 8354.5 12434.5 16631.5 22254.5 25164.0
                              8356.0 12465.5 16662.5 22248.0
                                              16629.0
   W27         4200.0 6298.0 8355.0 12435.0 16632.0 22255.0 25164.5
                              8356.5 12466.0 16663.0 22248.5
                                              16629.5
   W28         4200.5 6298.5 8355.5 12435.5 16632.5 22255.5 25165.0
                              8357.0 12466.5 16663.5 22249.0
                                              16630.0
   W29         4201.0 6299.0 8356.0 12436.0 16633.0 22256.0 25165.5
                              8357.5 12467.0 16664.0 22249.5
                                              16630.5
   W30         4201.5 6299.5 8356.5 12436.5 16633.5 22256.5 25166.0
                              8358.0 12467.5 16664.5 22250.0
                                              16631.0
   W31         4202.0 6300.0 8357.0 12437.0 16634.0 22257.0 25166.5
                              8358.5 12468.0 16665.0 22250.5
                                              16631.5
   W32         4202.0 6300.0 8357.5 12437.5 16634.5 22257.5 25167.0
                              8359.0 12468.5 16665.5 22251.0
                                              16632.0
   W33         4201.5 6299.5 8358.0 12438.0 16635.0 22258.0 25167.5
                              8359.5 12469.0 16666.0 22251.5
                                              16632.5
   W34         4201.0 6299.0 8358.5 12438.5 16635.5 22258.5 25168.0
                              8360.0 12469.5 16666.5 22252.0
                                              16633.0

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   W35         4200.5 6298.5 8359.0 12439.0 16636.0 22259.0 25168.5
                              8360.5 12470.0 16667.0 22252.5
                                              16633.5
   W36         4200.0 6298.0 8359.5 12439.5 16636.5 22259.5 25169.0
                              8361.0 12470.5 16667.5 22253.0
                                              16634.0
   W37         4199.5 6297.5 8360.0 12440.0 16637.0 22260.0 25169.5
                              8361.5 12471.0 16668.0 22253.5
                                              16634.5
   W38         4199.0 6297.0 8360.5 12440.5 16637.5 22260.5 25170.0
                              8362.0 12471.5 16668.5 22254.0
                                              16635.0
   W39         4198.5 6296.5 8361.0 12441.0 16638.0 22261.0 25170.5
                              8362.5 12472.0 16669.0 22254.5
                                              16635.5
   W40         4198.0 6296.0 8361.5 12441.5 16638.5 22261.5 25171.0
                              8363.0 12472.5 16669.5 22255.0
                                              16636.0
   W41         4197.5 6295.5 8362.0 12442.0 16639.0 22262.0 25161.5
                              8363.5 12473.0 16670.0 22255.5
                                              16636.5
   W42         4197.0 6295.0 8362.5 12442.5 16639.5 22262.5 25162.0
                              8364.0 12473.5 16670.5 22256.0
                                              16637.0
   W43         4196.5 6294.5 8363.0 12443.0 16640.0 22263.0 25162.5
                              8364.5 12474.0 16671.0 22256.5
                                              16637.5
   W44         4196.0 6294.0 8363.5 12443.5 16640.5 22263.5 25163.0
                              8365.0 12474.5 16671.5 22257.0
                                              16638.0
   W45         4195.5 6293.5 8364.0 12444.0 16641.0 22264.0 25163.5
                              8365.5 12475.0 16672.0 22257.5
                                              16638.5
   W46         4195.0 6293.0 8364.5 12444.5 16641.5 22264.5 25164.0
                              8371.0 12475.5 16672.5 22258.0

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                                              16639.0
   W47         4194.5 6292.5 8365.0 12445.0 16642.0 22265.0 25164.5
                              8371.5 12476.0 16673.0 22258.5
                                              16639.5
   W48         4194.0 6292.0 8365.5 12445.5 16642.5 22265.5 25165.0
                              8372.0 12476.5 16673.5 22259.0
                                              16640.0
   W49         4193.5 6291.5 8371.0 12446.0 16643.0 22266.0 25165.5
                              8372.5 12422.0 16674.0 22259.5
                                              16640.5
   W50         4193.0 6291.0 8371.5 12446.5 16643.5 22266.5 25166.0
                              8373.0 12422.5 16674.5 22260.0
                                              16641.0
   W51         4192.5 6290.5 8372.0 12447.0 16644.0 22267.0 25166.5
                              8373.5 12423.0 16675.0 22260.5
                                              16641.5
   W52         4192.0 6290.0 8372.5 12447.5 16644.5 22267.5 25167.0
                              8374.0 12423.5 16675.5 22261.0
                                              16642.0
   W53         4191.5 6289.5 8373.0 12448.0 16645.0 22268.0 25167.5
                              8374.5 12424.0 16676.0 22261.5
                                              16642.5
   W54         4191.0 6289.0 8373.5 12448.5 16645.5 22268.5 25168.0
                              8375.0 12424.5 16676.5 22262.0
                                              16643.0
   W55         4190.5 6288.5 8374.0 12449.0 16646.0 22269.0 25168.5
                              8375.5 12425.0 16677.0 22262.5
                                              16643.5
   W56         4190.0 6288.0 8374.5 12449.5 16646.5 22269.5 25169.0
                              8376.0 12425.5 16677.5 22263.0
                                              16644.0
   W57         4189.5 6287.5 8375.0 12450.0 16647.0 22270.0 25169.5
                              8342.0 12426.0 16678.0 22263.5
                                              16644.5
   W58         4189.0 6287.0 8375.5 12450.5 16647.5 22270.5 25170.0

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                              8342.5 12426.5 16678.5 22264.0
                                              16645.0
   W59         4188.5 6286.5 8376.0 12451.0 16648.0 22271.0 25170.5
                              8343.0 12427.0 16679.0 22264.5
                                              16645.5
   W60         4188.0 6286.0 8342.0 12451.5 16648.5 22271.5 25171.0
                              8343.5 12427.5 16679.5 22265.0
                                              16646.0
   W61         4187.5 6285.5 8342.5 12452.0 16649.0 22272.0 25161.5
                              8344.0 12428.0 16680.0 22265.5
                                              16646.5
   W62         4187.0 6285.0 8343.0 12452.5 16649.5 22272.5 25162.0
                              8344.5 12428.5 16680.5 22266.0
                                              16678.0

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                                                                                                  47 CFR 80.357(a)(3)(ii)
Stations in the Maritime Services

                (ii) If the frequencies listed in paragraph (3)(i) of this section are not adequate for communications,
                     ship stations may use any of the non-paired narrow-band direct-printing frequencies listed in §
                     80.361(b) of this part for A1A or J2A radiotelegraphy.

     (b) Coast station frequencies —

           (1) Frequencies in the 100–27500 kHz band. The following table describes the working carrier
               frequencies in the 100–27500 kHz band which are assignable to coast stations located in the
               designated geographical areas. The exclusive maritime mobile HF bands listed in the table
               contained in § 80.363(a)(2) of this chapter are also available for assignment to public coast stations
               for A1A, J2A, J2B, or J2D radiotelegraphy following coordination with government users.

47 CFR 80.357(b)(1) (enhanced display)                                                                   page 121 of 268
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Stations in the Maritime Services

                                                      Bands1
     Area
                  100–160 kHz 405–525 kHz 2 MHz    4 MHz   6 MHz   8 MHz   12 MHz    16 MHz   22 MHz
Central Pacific        126.15      426.00 2037.5 4247.0 6348.0 8558.0 12695.5 17016.8 22479.0
                                   436.00 2045.0 4274.0 6365.5 8618.0 12808.5 17026.0 22515.0
                       147.85      460.00 2061.5 4228.0 6477.5 8642.0 12844.5 17088.8 22557.0
                                    476.0                  6488.0 8445.0 13002.0              22581.5
                                   500.00                                  13033.5
                                   512.00
South Pacific                      418.00 2049.5 4238.0 6355.0 8590.0 12691.0 17064.8 22467.0
                                   464.00 2055.5 4283.0 6463.5 8606.0 12912.0 17088.8 22593.5
                                   482.00                          8642.0 12993.0 17220.5
                                   500.00                                  13033.5
                                   512.00
Gulf of Mexico         153.00      410.00 2042.0 4256.0 6369.0 8473.0 12704.5 17117.6 22467.0
                                   420.00 2048.0 4274.0 6435.5 8550.0 12826.5 17170.4 22668.5
                                   434.00 2049.5 4310.0 6446.0 8570.0 12840.0 17172.4 22686.5
                                   438.00 2052.5 4322.0 6495.0 8666.0 13038.0 17230.1 22688.0
                                   478.00 2055.5                   8445.0 13051.5
                                   484.00 2063.0                   8453.0 12660.0
                                   500.00
                                   512.00
Great Lakes                        482.00          4316.0 6474.0 8534.0
                                   500.00
                                   512.00
Hawaii                             484.00 2052.5 4295.0 6407.5 8542.0 13029.0 16978.4 22509.0
                                   500.00
                                   512.00
Puerto Rico            153.00      486.00 2052.5 4244.0            8457.0 12700.0
                                   500.00
                                   512.00
North Atlantic         112.85      418.00 2036.0 4238.0 6351.5 8502.0 12745.5 16933.2 22485.0
                       124.05      436.00 2040.5 4268.0 6376.0 8514.0 12925.5 16968.8 22503.0
                       130.35      442.00 2046.5 4331.0 6414.5 8586.0 12948.0 16973.6 22521.0
                       132.10      460.00 2051.0 4343.0 6418.0 8610.0 12961.5 16997.6 22599.5
                       134.55      472.00 2054.0 4346.0 6333.5 8630.0 12997.5 17021.6 22640.0

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Stations in the Maritime Services

                                                      Bands1
     Area
                   100–160 kHz 405–525 kHz 2 MHz    4 MHz   6 MHz   8 MHz   12 MHz    16 MHz    22 MHz
                        137.00      476.00 2060.0           6337.0 8658.0 13020.0 17093.6 22658.0
                                    482.00                  6344.0 8686.0 13024.5 16904.9
                        146.80      500.00                                  13033.5
                        147.50      512.00                                  13060.5
Central Atlantic                    428.00 2063.0 4346.0 6484.5 8502.0 12885.0 16916.5 22588.5
                                    500.00
                                    512.00
South Atlantic          137.70      434.00 2039.0 4250.0 6389.6 8486.0 12952.5 16918.8 22503.0
                                    464.00 2043.5 4292.0 6407.5 8525.0 12970.5 17093.6 22575.5
                                    472.00 2051.0 4295.0 6411.0 8686.0 13011.0 17160.8
                                    488.00 2057.0                   8453.0 12660.0 17170.4
                                    500.00                                            17239.7
                                    512.00
North Pacific                       482.00 2058.5 4349.0 6411.0 8582.0 12907.5 17007.2 22539.0
                                    488.00 2063.0                   8658.0 12916.5
                                    500.00
                                    512.00
Alaska                              416.00
                                    438.00
                                    452.00
                                    472.00
                                    512.00
1All frequencies in this table are shown in kilohertz. The use of frequencies in the 472–479 kHz band is restricted to public coast stations that were licensed
on or before July 14, 2017.

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                                                                                                              47 CFR 80.357(b)(2)
Stations in the Maritime Services

           (2) Conditions of use. The following conditions are applicable to these frequencies:

                 (i)   Frequencies in the 100–160 kHz band are assignable to coast stations for high seas
                       communications only;

                 (ii) Frequencies above 5 MHz may be assigned primarily to stations serving the high seas and
                      secondarily to stations serving inland waters of the United States, including the Great Lakes,
                      under the condition that interference will not be caused to any coast station serving the high
                      seas.

                (iii) The frequency 410 kHz may be used on a secondary basis for the transmission of
                      radiodetermination information and for transmitting by radiotelegraph radiodetermination
                      messages to direction-finding stations; and

[51 FR 31213, Sept. 2, 1986; 51 FR 34984, Oct. 1, 1986, as amended at 56 FR 9887, Mar. 8, 1991; 56 FR 34029, July 25, 1991; 65
FR 77824, Dec. 13, 2000; 67 FR 48264, July 15, 2002; 68 FR 46969, Aug. 7, 2003; 69 FR 64674, Nov. 8, 2004; 82 FR 27213, June
14, 2017; 82 FR 48460, Oct. 18, 2017]

§ 80.359 Frequencies for digital selective calling (DSC).
     (a) General purpose calling. The following table describes the calling frequencies for use by authorized ship
         and coast stations for general purpose DSC. There are three series of paried frequencies. One series is for
         worldwide use; the other two series are for regional use. The “Series A” designation includes coast
         stations along, and ship stations in, the Atlantic Ocean, the Gulf of Mexico, and the Caribbean Sea. The
         “Series B” designation includes stations in any remaining areas. Stations must initiate contact on the
         appropriate regional frequency depending upon the location of the called station and propagation
         conditions. Acknowledgement is made on the paired frequency. The worldwide frequencies may be used
         for international calling, if calls on the appropriate regional frequencies are unsuccessful, or the regional
         series does not contain the appropriate band (e.g., 2 MHz). During normal working hours, all public coast
         stations capable of DSC operations must monitor the worldwide and regional frequencies appropriate for
         its location. The specific frequencies to be monitored will vary with propagation conditions.

                                                      General Purpose DSC

           [In kHz unless otherwise noted]

                          Worldwide                              Series A                          Series B
                  Ship                Coast               Ship              Coast           Ship              Coast
                         458.5                455.5
                                         1
                        2189.5               2177.0
                        4208.0               4219.5         4208.5             4220.0          4209.0             4220.5
                        6312.5               6331.0         6313.0             6331.5          6313.5             6332.0
                        8415.0               8436.5         8415.5             8437.0          8416.0             8437.5
                       12577.5           12657.0           12578.0            12657.5         12578.5           12658.0
                       16805.0           16903.0           16805.5            16903.5         16806.0           16904.0
                       18898.5           19703.5           18899.0            19704.0         18899.5           19704.5
                       22374.5           22444.0           22375.0            22444.5         22375.5           22445.0

47 CFR 80.359(a) (enhanced display)                                                                              page 124 of 268
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                                                                                                               47 CFR 80.359(b)
Stations in the Maritime Services

                              Worldwide                         Series A                           Series B
                      Ship                Coast          Ship              Coast            Ship              Coast
                           25208.5             26121.0     25209.0           26121.5          25209.5          26122.0
                       2                   2
                           156.525             156.525

           1The frequency 2177.0 kHzs is also available to ship stations for intership calling and
           acknowledgement of such calls only.

           2
               MHz.

     (b) Distress and safety calling. The frequencies 2187.5 kHz, 4207.5 kHz, 6312.0 kHz, 8414.5 kHz, 12577.0
         kHz, 16804.5 kHz and 156.525 MHz may be used for DSC by coast and ship stations on a simplex basis
         for distress and safety purposes, and may also be used for routine ship-to-ship communications provided
         that priority is accorded to distress and safety communications. The provisions and procedures for
         distress and safety calling are contained in ITU–R M.541–9 (incorporated by reference, see § 80.7), and §
         80.103(c).

     (c) Working frequencies. Coast and ship stations may use DSC techniques for general calling purposes on
         their assigned working frequencies in the 2000–27500 kHz band and on those frequencies in the
         156–162 MHz band which are allocated for maritime control, commercial, non-commercial and public
         correspondence communications.

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 49995, Dec. 4, 1989; 56 FR 9890, Mar. 8, 1991; 56 FR 14150, Apr. 5, 1991; 68 FR
46969, Aug. 7, 2003; 73 FR 4485, Jan. 25, 2008; 76 FR 67612, Nov. 2, 2011]

§ 80.361 Frequencies for narrow-band direct-printing (NBDP), radioprinter and data
transmissions.
     (a) Paired channels. The following frequencies are available for assignment to public coast stations for
         narrow-band direct-printing (NBDP) and data transmissions. The paired ship frequencies are available for
         use by authorized ship stations for NBDP and data transmissions.

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                                                                                                                                                     47 CFR 80.361(a)
Stations in the Maritime Services

                                                      Paired frequencies for NBDP and data transmissions (kHz)
Ch. no.      4 MHz          6 MHz             8 MHz              12 MHz             16 MHz           18/19 MHz          22 MHz          25/26 MHz
          Coast   Ship   Coast   Ship   Coast     Ship       Coast     Ship     Coast     Ship     Coast     Ship   Coast    Ship     Coast   Ship
1         4210.5 4172.5 6314.5 6263.0                       12579.5 12477.0 16807.0 16683.5 19681.0 18870.5 22376.5 22284.5 26101.0 25173.0
2         4211.0 4173.0 6315.0 6263.5 8417.0 8377.0 12580.0 12477.5 16807.5 16684.0 19681.5 18871.0 22377.0 22285.0 26101.5 25173.5
3         4211.5 4173.5 6315.5 6264.0 8417.5 8377.5 12580.5 12478.0 16808.0 16684.5 19682.0 18871.5 22377.5 22285.5 26102.0 25174.0
4         4212.0 4174.0 6316.0 6264.5 8418.0 8378.0 12581.0 12478.5 16808.5 16685.0 19682.5 18872.0 22378.0 22286.0 26102.5 25174.5
5         4212.5 4174.5 6316.5 6265.0 8418.5 8378.5 12581.5 12479.0 16809.0 16685.5 19683.0 18872.5 22378.5 22286.5 26103.0 25175.0
6         4213.0 4175.0 6317.0 6265.5 8419.0 8379.0 12582.0 12479.5 16809.5 16686.0 19683.5 18873.0 22379.0 22287.0 26103.5 25175.5
7         4213.5 4175.5 6317.5 6266.0 8419.5 8379.5 12582.5 12480.0 16810.0 16686.5 19684.0 18873.5 22379.5 22287.5 26104.0 25176.0
8         4214.0 4176.0 6318.0 6266.5 8420.0 8380.0 12583.0 12480.5 16810.5 16687.0 19684.5 18874.0 22380.0 22288.0 26104.5 25176.5
9         4214.5 4176.5 6318.5 6267.0 8420.5 8380.5 12583.5 12481.0 16811.0 16687.5 19685.0 18874.5 22380.5 22288.5 26105.0 25177.0
10        4215.0 4177.0 6319.0 6267.5 8421.0 8381.0 12584.0 12481.5 16811.5 16688.0 19685.5 18875.0 22381.0 22289.0 26105.5 25177.5
11                                      8421.5 8381.5 12584.5 12482.0 16812.0 16688.5 19686.0 18875.5 22381.5 22289.5 26106.0 25178.0
12        4215.5 4178.0 6319.5 6268.5 8422.0 8382.0 12585.0 12482.5 16812.5 16689.0 19686.5 18876.0 22382.0 22290.0 26106.5 25178.5
13        4216.0 4178.5 6320.0 6269.0 8422.5 8382.5 12585.5 12483.0 16813.0 16689.5 19687.0 18876.5 22382.5 22290.5 26107.0 25179.0
14        4216.5 4179.0 6320.5 6269.5 8423.0 8383.0 12586.0 12483.5 16813.5 16690.0 19687.5 18877.0 22383.0 22291.0 26107.5 25179.5
15        4217.0 4179.5 6321.0 6270.0 8423.5 8383.5 12586.5 12484.0 16814.0 16690.5 19688.0 18877.5 22383.5 22291.5 26108.0 25180.0
16        4217.5 4180.0 6321.5 6270.5 8424.0 8384.0 12587.0 12484.5 16814.5 16691.0 19688.5 18878.0 22384.0 22292.0 26108.5 25180.5
17        4218.0 4180.5 6322.0 6271.0 8424.5 8384.5 12587.5 12485.0 16815.0 16691.5 19689.0 18878.5 22384.5 22292.5 26109.0 25181.0
18                       6322.5 6271.5 8425.0 8385.0 12588.0 12485.5 16815.5 16992.0 19689.5 18879.0 22385.0 22293.0 26109.5 25181.5
19                       6323.0 6272.0 8425.5 8385.5 12588.5 12486.0 16816.0 16692.5 19690.0 18879.5 22385.5 22293.5 26110.0 25182.0
20                       6323.5 6272.5 8426.0 8386.0 12589.0 12486.5 16816.5 16693.0 19690.5 18880.0 22386.0 22294.0 26110.5 25182.5
21                       6324.0 6273.0 8426.5 8386.5 12589.5 12487.0 16817.0 16693.5 19691.0 18880.5 22386.5 22294.5
22                       6324.5 6273.5 8427.0 8387.0 12590.0 12487.5 16817.5 16694.0 19691.5 18881.0 22387.0 22295.0
23                       6325.0 6274.0 8427.5 8387.5 12590.5 12488.0 16818.0 16694.5                                22387.5 22295.5
24                       6325.5 6274.5 8428.0 8388.0 12591.0 12488.5                                                22388.0 22296.0
25                       6326.0 6275.0 8428.5 8388.5 12591.5 12489.0 16818.5 16695.5                                22388.5 22296.5
26                       6326.5 6275.5 8429.0 8389.0 12592.0 12489.5 16819.0 16696.0                                22389.0 22297.0
27                       6327.0 6281.0 8429.5 8389.5 12592.5 12490.0 16819.5 16696.5                                22389.5 22297.5
28                       6327.5 6281.5 8430.0 8390.0 12593.0 12490.5 16820.0 16697.0                                22390.0 22298.0
29                       6328.0 6282.0 8430.5 8390.5 12593.5 12491.0 16820.5 16697.5                                22390.5 22298.5
30                                      8431.0 8391.0 12594.0 12491.5 16821.0 16698.0                               22391.0 22299.0
31                                      8431.5 8391.5 12594.5 12492.0 16821.5 16698.5                               22391.5 22299.5
32                                      8432.0 8392.0 12595.0 12492.5 16822.0 16699.0                               22392.0 22300.0

47 CFR 80.361(a) (enhanced display)                                                                                                                  page 126 of 268
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                                                                                                                                                     47 CFR 80.361(a)
Stations in the Maritime Services

                                                      Paired frequencies for NBDP and data transmissions (kHz)
Ch. no.      4 MHz          6 MHz             8 MHz              12 MHz             16 MHz           18/19 MHz          22 MHz          25/26 MHz
          Coast   Ship   Coast   Ship   Coast     Ship       Coast     Ship     Coast     Ship     Coast     Ship   Coast    Ship     Coast   Ship
33                                      8432.5 8392.5 12595.5 12493.0 16822.5 16699.5                               22392.5 22300.5
34                                      8433.0 8393.0 12596.0 12493.5 16823.0 16700.0                               22393.0 22301.0
35                                                          12596.5 12494.0 16823.5 16700.5                         22393.5 22301.5
36                                                          12597.0 12494.5 16824.0 16701.0                         22394.0 22302.0
37                                                          12597.5 12495.0 16824.5 16701.5                         22394.5 22302.5
38                                                          12598.0 12495.5 16825.0 16702.0                         22395.0 22303.0
39                                                          12598.5 12496.0 16825.5 16702.5                         22395.5 22303.5
40                                                          12599.0 12496.5 16826.0 16703.0                         22396.0 22304.0
41                                                          12599.5 12497.0 16826.5 16703.5                         22396.5 22304.5
42                                                          12600.0 12497.5 16827.0 16704.0                         22397.0 22305.0
43                                                          12600.5 12498.0 16827.5 16704.5                         22397.5 22305.5
44                                                          12601.0 12498.5 16828.0 16705.0                         22398.0 22306.0
45                                                          12601.5 12499.0 16828.5 16705.5                         22398.5 22306.5
46                                                          12602.0 12499.5 16829.0 16706.0                         22399.0 22307.0
47                                                          12602.5 12500.0 16829.5 16706.5                         22399.5 22307.5
48                                                          12603.0 12500.5 16830.0 16707.0                         22400.0 22308.0
49                                                          12603.5 12501.0 16830.5 16707.5                         22400.5 22308.5
50                                                          12604.0 12501.5 16831.0 16708.0                         22401.0 22309.0
51                                                          12604.5 12502.0 16831.5 16708.5                         22401.5 22309.5
52                                                          12605.0 12502.5 16832.0 16709.0                         22402.0 22310.0
53                                                          12605.5 12503.0 16832.5 16709.5                         22402.5 22310.5
54                                                          12606.0 12503.5 16833.0 16710.0                         22403.0 22311.0
55                                                          12606.5 12504.0 16833.5 16710.5                         22403.5 22311.5
56                                                          12607.0 12504.5 16834.0 16711.0                         22404.0 22312.0
57                                                          12607.5 12505.0 16834.5 16711.5                         22404.5 22312.5
58                                                          12608.0 12505.5 16835.0 16712.0                         22405.0 22313.0
59                                                          12608.5 12506.0 16835.5 16712.5                         22405.5 22313.5
60                                                          12609.0 12506.5 16836.0 16713.0                         22406.0 22314.0
61                                                          12609.5 12507.0 16836.5 16713.5                         22406.5 22314.5
62                                                          12610.0 12507.5 16837.0 16714.0                         22407.0 22315.0
63                                                          12610.5 12508.0 16837.5 16714.5                         22407.5 22315.5
64                                                          12611.0 12508.5 16838.0 16715.0                         22408.0 22316.0

47 CFR 80.361(a) (enhanced display)                                                                                                                   page 127 of 268
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                                                                                                                                                     47 CFR 80.361(a)
Stations in the Maritime Services

                                                      Paired frequencies for NBDP and data transmissions (kHz)
Ch. no.      4 MHz          6 MHz             8 MHz              12 MHz             16 MHz           18/19 MHz          22 MHz          25/26 MHz
          Coast   Ship   Coast   Ship   Coast     Ship       Coast     Ship     Coast     Ship     Coast     Ship   Coast    Ship     Coast   Ship
65                                                          12611.5 12509.0 16838.5 16715.5                         22408.5 22316.5
66                                                          12612.0 12509.5 16839.0 16716.0                         22409.0 22317.0
67                                                          12612.5 12510.0 16839.5 16716.5                         22409.5 22317.5
68                                                          12613.0 12510.5 16400.0 16717.0                         22410.0 22318.0
69                                                          12613.5 12511.0 16400.5 16717.5                         22410.5 22318.5
70                                                          12614.0 12511.5 16411.0 16718.0                         22411.0 22319.0
71                                                          12614.5 12512.0 16841.5 16718.5                         22411.5 22319.5
72                                                          12615.0 12512.5 16842.0 16719.0                         22412.0 22320.0
73                                                          12615.5 12513.0 16842.5 16719.5                         22412.5 22320.5
74                                                          12616.0 12513.5 16843.0 16720.0                         22413.0 22321.0
75                                                          12616.5 12514.0 16843.5 16720.5                         22413.5 22321.5
76                                                          12617.0 12514.5 16844.0 16721.0                         22414.0 22322.0
77                                                          12617.5 12515.0 16844.5 16721.5                         22414.5 22322.5
78                                                          12618.0 12515.5 16845.0 16722.0                         22415.0 22323.0
79                                                          12618.5 12516.0 16845.5 16722.5                         22415.5 22323.5
80                                                          12619.0 12516.5 16846.0 16723.0                         22416.0 22324.0
81                                                          12619.5 12517.0 16846.5 16723.5                         22416.5 22324.5
82                                                          12620.0 12517.5 16847.0 16724.0                         22417.0 22325.0
83                                                          12620.5 12518.0 16847.5 16724.5                         22417.5 22325.5
84                                                          12621.0 12518.5 16848.0 16725.0                         22418.0 22326.0
85                                                          12621.5 12519.0 16848.5 16725.5                         22418.5 22326.5
86                                                          12622.0 12519.5 16849.0 16726.0                         22419.0 22327.0
87                                                                             16849.5 16726.5                      22419.5 22327.5
88                                                          12622.5 12520.5 16850.0 16727.0                         22420.0 22328.0
89                                                          12623.0 12521.0 16850.5 16727.5                         22420.5 22328.5
90                                                          12623.5 12521.5 16851.0 16728.0                         22421.0 22329.0
91                                                          12624.0 12522.0 16851.5 16728.5                         22421.5 22329.5
92                                                          12624.5 12522.5 16852.0 16729.0                         22422.0 22330.0
93                                                          12625.0 12523.0 16852.5 16729.5                         22422.5 22330.5
94                                                          12625.5 12523.5 16853.0 16730.0                         22423.0 22331.0
95                                                          12626.0 12524.0 16853.5 16730.5                         22423.5 22331.5
96                                                          12626.5 12524.5 16854.0 16731.0                         22424.0 22332.0

47 CFR 80.361(a) (enhanced display)                                                                                                                  page 128 of 268
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                                                                                                                                                     47 CFR 80.361(a)
Stations in the Maritime Services

                                                      Paired frequencies for NBDP and data transmissions (kHz)
Ch. no.      4 MHz          6 MHz             8 MHz              12 MHz             16 MHz           18/19 MHz          22 MHz          25/26 MHz
          Coast   Ship   Coast   Ship   Coast     Ship       Coast     Ship     Coast     Ship     Coast     Ship   Coast    Ship     Coast   Ship
97                                                          12627.0 12525.0 16854.5 16731.5                         22424.5 22332.5
98                                                          12627.5 12525.5 16855.0 16732.0                         22425.0 22333.0
99                                                          12628.0 12526.0 16855.5 16732.5                         22425.5 22333.5
100                                                         12628.5 12526.5 16856.0 16733.0                         22426.0 22334.0
101                                                         12629.0 12527.0 16856.5 16733.5                         22426.5 22334.5
102                                                         12629.5 12527.5 16857.0 16739.0
103                                                         12630.0 12528.0 16857.5 16739.5
104                                                         12630.5 12528.5 16858.0 16740.0
105                                                         12631.0 12529.0 16858.5 16740.5
106                                                         12631.5 12529.5 16859.0 16741.0
107                                                         12632.0 12530.0 16859.5 16741.5
108                                                                            16860.0 16742.0
109                                                                            16860.5 16742.5
110                                                                            16861.0 16743.0
111                                                                            16861.5 16743.5
112                                                                            16862.0 16744.0
113                                                                            16862.5 16744.5
114                                                                            16863.0 16745.0
115                                                                            16863.5 16745.5
116                                                                            16864.0 16746.0
117                                                                            16864.5 16746.5
118                                                                            16865.0 16747.0
119                                                                            16865.5 16747.5
120                                                                            16866.0 16748.0
121                                                                            16866.5 16748.5
122                                                                            16867.0 16749.0
123                                                                            16867.5 16749.5
124                                                                            16868.0 16750.0
125                                                                            16868.5 16750.5
126                                                                            16869.0 16751.0
127                                                                            16869.5 16751.5
128                                                                            16870.0 16752.0

47 CFR 80.361(a) (enhanced display)                                                                                                                  page 129 of 268
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                                                                                                                                                  47 CFR 80.361(a)
Stations in the Maritime Services

                                                      Paired frequencies for NBDP and data transmissions (kHz)
Ch. no.      4 MHz          6 MHz             8 MHz              12 MHz             16 MHz           18/19 MHz         22 MHz        25/26 MHz
          Coast   Ship   Coast   Ship   Coast     Ship       Coast     Ship     Coast     Ship     Coast     Ship   Coast   Ship   Coast   Ship
129                                                                            16870.5 16752.5
130                                                                            16871.0 16753.0
131                                                                            16871.5 16753.5
132                                                                            16872.0 16754.0

47 CFR 80.361(a) (enhanced display)                                                                                                               page 130 of 268
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                                                                                                   47 CFR 80.361(b)
Stations in the Maritime Services

     (b) The following table describes the frequencies and Channel Series with F1B, J2B, or J2D emission which
         are assignable to ship stations for NBDP and data transmissions with other ship stations and public coast
         stations. Public coast stations may receive only on these frequencies.

47 CFR 80.361(b) (enhanced display)                                                                 page 131 of 268
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                                                                                           47 CFR 80.361(b)
Stations in the Maritime Services

                                                          Non-Paired NBDP Channels (kHz)

Channel series:
1                 4202.5 6300.5 8396.5 12560.0 16785.0 18893.0 22352.0 25193.0
2                 4203.0 6301.0 8397.0 12560.5 16785.5 18893.5 22352.5 25193.5
3                 4203.5 6301.5 8397.5 12561.0 16786.0 18894.0 22353.0 25194.0
4                 4204.0 6302.0 8398.0 12561.5 16786.5 18894.5 22353.5 25194.5
5                 4204.5 6302.5 8398.5 12562.0 16787.0 18895.0 22354.0 25195.0
6                 4205.0 6303.0 8399.0 12562.5 16787.5 18895.5 22354.5 25195.5
7                 4205.5 6303.5 8399.5 12563.0 16788.0 18896.0 22355.0 25196.0
8                 4206.0 6304.0 8400.0 12563.5 16788.5 18896.5 22355.5 25196.5
9                 4206.5 6304.5 8400.5 12564.0 16789.0 18897.0 22356.0 25197.0
10                4207.0 6305.0 8401.0 12564.5 16789.5 18897.5 22356.5 25197.5
11                       6305.5 8401.5 12565.0 16790.0 18898.0 22357.0 25198.0
12                       6306.0 8402.0 12565.5 16790.5         22357.5 25198.5
13                       6306.5 8402.5 12566.0 16791.0         22358.0 25199.0
14                       6307.0 8403.0 12566.5 16791.5         22358.5 25199.5
15                       6307.5 8403.5 12567.0 16792.0         22359.0 25200.0
16                       6308.0 8404.0 12567.5 16792.5         22359.5 25200.5
17                       6308.5 8404.5 12568.0 16793.0         22360.0 25201.0
18                       6309.0 8405.0 12568.5 16793.5         22360.5 25201.5
19                       6309.5 8405.5 12569.0 16794.0         22361.0 25202.0
20                       6310.0 8406.0 12569.5 16794.5         22361.5 25202.5
21                       6310.5 8406.5 12570.0 16795.0         22362.0 25203.0
22                       6311.0 8407.0 12570.5 16795.5         22362.5 25203.5
23                       6311.5 8407.5 12571.0 16796.0         22363.0 25204.0
24                              8408.0 12571.5 16796.5         22363.5 25204.5
25                              8408.5 12572.0 16797.0         22364.0 25205.0
26                              8409.0 12572.5 16797.5         22364.5 25205.5
27                              8409.5 12573.0 16798.0         22365.0 25206.0
28                              8410.0 12573.5 16798.5         22365.5 25206.5
29                              8410.5 12574.0 16799.0         22366.0 25207.0
30                              8411.0 12574.5 16799.5         22366.5 25207.5
31                              8411.5 12575.0 16800.0         22367.0 25208.0
32                              8412.0 12575.5 16800.5         22367.5
47 CFR 80.361(b) (enhanced display)                                                         page 132 of 268
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                                                                  47 CFR 80.361(b)
Stations in the Maritime Services

33                            8412.5 12576.0 16801.0    22368.0
34                            8413.0 12576.5 16801.5    22368.5
35                            8413.5          16802.0   22369.0
36                            8414.0          16802.5   22369.5
37                                            16803.0   22370.0
38                                            16803.5   22370.5
39                                            16804.0   22371.0
40                                                      22371.5
41                                                      22372.0
42                                                      22372.5
43                                                      22373.0
44                                                      22373.5
45                                                      22374.0

47 CFR 80.361(b) (enhanced display)                                page 133 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                               47 CFR 80.361(c)
Stations in the Maritime Services

     (c) Distress and calling. The frequencies 2174.5 kHz, 4177.5 kHz, 6268.0 kHz, 8376.5 kHz, 12520.0 kHz, and
         16695.0 kHz may be used for NBDP and data transmissions by coast and ship stations on a simplex
         basis for distress and safety purposes.

     (d) The frequencies in the 156–162 MHz band available for assignment to public coast stations that are
         contained in § 80.371(c) of this part are also available for radioprinter and data communications between
         ship and coast stations using F1B, F2B, F1D, or F2D emission.

[51 FR 31213, Sept. 2, 1986, as amended at 56 FR 9890, Mar. 8, 1991; 57 FR 43407, Sept. 21, 1992; 58 FR 16504, Mar. 29, 1993;
68 FR 46969, Aug. 7, 2003]

§ 80.363 Frequencies for facsimile.
     (a) The non-paired frequencies with F1C, F3C, J2C or J3C emission which are assignable to ship and public
         coast stations for facsimile are as follows:

           (1) Ship station frequencies. The following frequencies are available for use by authorized ship stations
               for facsimile.

47 CFR 80.363(a)(1) (enhanced display)                                                                          page 134 of 268
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                                                                                                47 CFR 80.363(a)(1)
Stations in the Maritime Services

                                              Assignable Ship Frequencies for Facsimile (kHz)

2070.5 4154 6235 8302 12370 16551 18848 22182 25123
2072.5 4170 6259 8338 12418 16615 18868 22238 25159
2074.5
2076.5

47 CFR 80.363(a)(1) (enhanced display)                                                             page 135 of 268
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                                                                                                            47 CFR 80.363(a)(2)
Stations in the Maritime Services

           (2) Coast station frequencies. The following table describes the exclusive maritime mobile HF frequency
               bands that are available for assignment to coast stations using 3 kHz channels for facsimile.
               However, any frequency in the 2000–27500 kHz bands listed in part 2 of the Commission's Rules as
               available for shared use by the maritime mobile service and other radio services, except for the
               4000–4063 kHz and the 8100–8195 kHz bands, is available for assignment to coast stations for
               facsimile. Frequency assignments are subject to coordination with government users.

                                        Frequency Bands for Coast Facsimile (kHz)

                                                      4221.0– 4351.0                                       16904.5–17242.0
                                                      6332.5– 6501.0                                       19705.0–19755.0
                                                      8438.0– 8707.0                                       22445.5–22696.0
                                                    12658.5–13077.0                                        26122.5–26145.0

     (b) The frequencies in the 156–162 MHz band available for assignment to public coast stations that are
         contained in § 80.371(c) of this part are also available for facsimile communications between ship and
         coast stations using F2C or F3C emission.

     (c) The frequency 156.425 MHz is assigned by rule to private coast stations and ship stations in Alaska for
         ship-to-shore and ship-to-ship facsimile transmissions using F2C or F3C emissions.

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 40059, Sept. 29, 1989; 56 FR 9893, Mar. 8, 1991; 57 FR 43407, Sept. 21, 1992;
62 FR 40307, July 28, 1997; 68 FR 46970, Aug. 7, 2003]

§ 80.364 Frequencies for VHF digital small message services (VDSMS).
Frequencies in the 156–162 MHz band may be used for VHF digital small message services (VDSMS) complying
with RTCM 12301 (incorporated by reference, see § 80.7), except as follows

       VHF–FM Channels Not Available for Digital Small Message Service

              Channel                                            Frequency (MHz)
                 01A                                                 156.050
                 63A                                                 156.175
                 05A                                                 156.250
                 65A                                                 156.275
                 06                                                  156.300
                 66A                                                 156.325
                 67                                                  156.375
                 70                                                  156.525
                 12                                                  156.600
                 13                                                  156.650
                 73                                                  156.675
                 14                                                  156.700
                 74                                                  156.725

47 CFR 80.364 (enhanced display)                                                                                page 136 of 268
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                                                                                                        47 CFR 80.365
Stations in the Maritime Services

                Channel                                    Frequency (MHz)
                  15                                           156.750
                  75                                           156.775
                  16                                           156.800
                  76                                           156.825
                  17                                           156.850
                  77                                           156.875
                  20A                                          157.000
                  22A                                          157.100
                 AIS   1⁄                                  161.975/162.025
                            2

[81 FR 90747, Dec. 15, 2016]

                                                   RADIOTELEPHONY

§ 80.365 Scope.
The following sections describe the carrier frequencies and general conditions of use for the following types of
radiotelephony:

     —Distress, urgency, safety, call and reply.

     —Working.

     —Public.

     —Private.

§ 80.367 General uses—radiotelephony.
     (a) Ship stations communicating with foreign coast stations may operate on any frequency designated by
         that coast station.

     (b) Radiotelephony stations communicating with a Government station may transmit on a Government
         frequency when authorized to do so by the Government station or agency if the emission, bandwidth and
         frequency tolerance of the maritime station are within the same limits as the Government station.

     (c) Frequencies assigned to Government radio stations are assignable to non-Government maritime stations
         for radiotelephony communications with other non-Government stations in connection with activities
         performed in coordination with or on behalf of the Government.

     (d) Frequencies in the 2000–27500 kHz band will be authorized only to ship stations that in addition are
         authorized to use frequencies in the 156–162 MHz band.

     (e) Frequencies in the 2000–2850 kHz band will be authorized to private coast stations that in addition are
         authorized to use frequencies in the 156–162 MHz band.

47 CFR 80.367(e) (enhanced display)                                                                    page 137 of 268
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                                                                                                         47 CFR 80.367(f)
Stations in the Maritime Services

     (f) Ship and coast stations authorized to use frequencies in both the 2000–27500 kHz and 156–162 MHz
         bands must not use frequencies in the 2000–27500 kHz band for communications with any other station
         which is within the VHF service range.

     (g) Coast and ship station radiotelephone working frequencies are available for DSC general purpose calling
         under the provisions of § 80.207(a).

     (h) Digital selective calling techniques are not authorized on the frequencies 2182 kHz or 156.800 MHz.

§ 80.369 Distress, urgency, safety, call and reply frequencies.
This section describes the general uses and frequencies assignable to maritime stations for distress, urgency,
safety, call and reply radiotelephony communications.

     (a) In the 1605–3500 kHz band, the frequency 2182 is an international radiotelephony distress, urgency and
         safety frequency for ship stations, public and private coast stations, and survival craft stations. It is also
         used for call and reply by ship stations on a primary basis and by public coast stations on a secondary
         basis. The carrier frequency 2191 kHz may be used as a supplementary calling frequency in areas of
         heavy usage of 2182 kHz. All stations must use J3E emission when operating on 2182 and 2191 kHz,
         except that:

           (1) H3E emission may be used on 2182 kHz for communications with foreign coast and ship stations; or,

           (2) A3E emission may be used on 2182 kHz by portable survival craft stations, or transmitters
               authorized for use prior to January 1, 1972. See § 80.203(c).

     (b) The frequencies 4125.0 kHz, 6215 kHz, 8291 kHz, 12290 kHz, and 16420 kHz may be used by coast and
         ship stations on a simplex basis for distress and safety communications. The frequency 4125.0 kHz may
         also be used for distress and safety communications between aircraft and maritime mobile stations.

     (c) The frequency 5167.5 kHz is available to any station for emergency communications in the State of
         Alaska. Peak envelope power of stations operating on this frequency must not exceed 150 watts. This
         frequency may also be used by Alaska private fixed stations for calling and listening, but only for
         establishing communication.

     (d) In the 4000–27500 kHz band, the following coast frequencies are available for assignment to public coast
         stations for call and reply communications. The paired ship frequencies are available for use by
         authorized ship stations.

                          Call and Reply Frequency Pairs in the 4000–27500 kHz

                                                 Carrier Frequencies (kHz)
                     Channel No.                     Ship transmit                      Coast transmit
           421                                                       123   4125                            1   4417
                                                                      23                                   1
           606                                                             6215                                6516
           821                                                             8255                                8779
                                                                      3
           1221                                                           12290                            13137
           1621                                                       3   16420                            17302
           1806                                                           18795                            19770
           2221                                                           22060                            22756

47 CFR 80.369(d) (enhanced display)                                                                       page 138 of 268
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                                                                                                               47 CFR 80.369(e)
Stations in the Maritime Services

                                                    Carrier Frequencies (kHz)
                     Channel No.                        Ship transmit                        Coast transmit
           2510                                                            25097                                 26172

           1The frequencies 4125 kHz, 4417 kHz, and 6516 kHz are also available on a simplex basis for
           private communications, see § 80.373(c) of this part.

           2The frequencies of 4125 kHz and 6215 kHz are also available on a simplex basis to ship and
           coast stations for call and reply, provided that the peak envelope power does not exceed 1 kW.

           3 The frequencies 4125 kHz, 6215 kHz, 8291 kHz, 12290 kHz, and 16420 kHz are also available on
           a simplex basis for distress and safety traffic, see paragraph (b) of this section.

     (e) In the 120–156 MHz band the following frequencies are used as indicated:

           (1) The frequencies 121.500 MHz and 123.100 MHz using A3E emission are available for scene of
               action search and rescue operations to ship, coast and aircraft stations. Communications in support
               of search and rescue operations must employ the frequency 121.500 MHz only when
               communications on 123.100 MHz or other VHF frequencies is not practicable. Ship, coast and
               aircraft stations engaged in such communications on 121.500 MHz must shift to 123.100 MHz as
               soon as possible.

           (2) The frequency 156.525 MHz is available for intership, ship and coast general purpose, distress and
               safety DSC calls.

           (3) The frequency 156.800 MHz is the international radiotelephone distress, urgency, safety, call and
               reply frequency for ship, public and private coast stations. Stations operating on 156.800 MHz must
               be able to transmit and receive using G3E emission.

           (4) The frequency 156.450 MHz (channel 9) is available for intership, ship and coast station general
               purpose calling by noncommercial vessels, such as recreational boats. Distress, urgency and safety
               calls should initially be made on 156.800 MHz (channel 16) or, if equipped with DSC, on 156.525
               MHz (channel 70).

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987; 54 FR 49995, Dec. 4, 1989; 56 FR 9893, Mar. 8, 1991; 57
FR 19552, May 7, 1992]

§ 80.371 Public correspondence frequencies.
This section describes the radiotelephony working frequencies assignable to ship and public coast stations.

     (a) Working frequencies in the 2000–4000 kHz band. The following table describes the working carrier
         frequency pairs in the 2000–4000 kHz band.

                                      Working frequency pairs in the 2000–4000 kHz band
                                                                         Carrier frequency (kHz)
                         Region
                                                         Ship transmit                        Coast transmit
           East Coast:                                                     2031.5                               2490.0

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                                                                                                            47 CFR 80.371(a)
Stations in the Maritime Services

                                      Working frequency pairs in the 2000–4000 kHz band
                                                                      Carrier frequency (kHz)
                         Region
                                                      Ship transmit                        Coast transmit
                                                                                                            1
                                                                          2118.0                                2514.0
                                                                          2126.0                                2522.0
                                                                          2142.0                                2538.0
                                                                          2166.0                                2558.0
                                                                          2198.0                                2590.0
                                                                          2366.0                                2450.0
                                                                                                            5
                                                                          2382.0                                2482.0
                                                                          2390.0                                2566.0
                                                                          2400.0                                2400.0
                                                                          2406.0                                2442.0
                                                                          2406.0                            4   2506.0
           West Coast:                                                    2003.0                                2450.0
                                                                          2009.0                                2442.0
                                                                          2009.0                                2566.0
                                                                          2031.5                                2566.0
                                                                          2126.0                                2522.0
                                                                          2206.0                                2598.0
                                                                          2382.0                                2466.0
                                                                          2406.0                                2506.0
                                                                          2430.0                            5   2482.0
           Gulf Coast:                                                    2009.0                                2466.0
                                                                          2134.0                                2530.0
                                                                          2142.0                                2538.0
                                                                      1   2158.0                            12550.0

                                                                          2166.0                                2558.0
                                                                          2206.0                                2598.0
                                                                          2366.0                                2450.0
                                                                                                            5
                                                                          2382.0                                2482.0
                                                                          2430.0                                2572.0
                                                                          2458.0                                2506.0
           Great   Lakes2:                                                2118.0                                2514.0
                                                                          2158.0                                2550.0
                                                                          2206.0                                2582.0
                                                                                                            5
           Alaska                                                         2131.0                                2309.0
                                                                          2134.0                                2312.0
                                                                          2237.0                                2397.0
                                                                          2240.0                                2400.0
           Hawaii                                                         2134.0                                2530.0

47 CFR 80.371(a) (enhanced display)                                                                         page 140 of 268
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                                                                                                              47 CFR 80.371(b)
Stations in the Maritime Services

                                       Working frequency pairs in the 2000–4000 kHz band
                                                                        Carrier frequency (kHz)
                          Region
                                                        Ship transmit                        Coast transmit
           Caribbean:                                                       2009.0                             2506.0
                                                                        3   2086.0                             2585.0
                                                                            2134.0                             2530.0
           Guam                                                             2009.0                             2506.0

           1Unlimited hours of use from December 15 to April 1 and day only from April 1 to December 15.
           Harmful interference must not be caused to any station in the Great Lakes region.

           2 In the Great Lakes region 2206 kHz is not available for transmission to U.S. ships except in the
           case of distress. U.S. coast stations in the Great Lakes area may use 2514, 2550 and 2582 kHz on
           a shared basis with coast stations of Canada. Except in the case of distress, the frequency 2550
           kHz must not be used for transmission to ship stations of Canada since the associated ship
           station transmit frequency 2158 kHz is not available to Canadian ship stations for transmission
           and 2582 kHz must not be used for public correspondence transmissions to U.S. ship stations
           since the associated ship transmit frequency 2206 kHz is not available to U.S. ship stations for
           transmissions except in the case of distress.

           3   Limited to a peak envelope power of 150 watts.

           4   Harmful interference must not be caused to any coast station in the Caribbean region.

           5   But see section 80.373(c)(3) of this chapter.

     (b) Working frequencies in the 4000–27500 kHz band. This paragraph describes the working carrier
         frequencies in the 4000–27500 kHz band. With respect to frequencies that are assignable in more than
         one geographical area, once the frequency is assigned to one licensee, any subsequent license will be
         authorized on a secondary, non-interference basis with respect to the incumbent license's existing
         operation. If the first licensee later seeks authorization to operate in an additional geographic area, such
         authorization will be on a secondary, non-interference basis to other co-channel licensees.

           (1) The following table specifies the carrier frequencies available for assignment to public coast
               stations. The paired ship frequencies are available for use by authorized ship stations. The specific
               frequency assignment available to public coast stations for a particular geographic area is indicated
               by an “x” under the appropriate column. The allotment areas are in accordance with the “Standard
               Defined Areas” as identified in the International Radio Regulations, Appendix 25 Planning System,
               and indicated in the preface to the International Frequency List (IFL).

47 CFR 80.371(b)(1) (enhanced display)                                                                         page 141 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                   47 CFR 80.371(b)(1)
Stations in the Maritime Services

                                      Working Carrier Frequency Pairs in the 4000–27500 kHz Band

Channel Ship transmit Coast transmit USA-E USA-W USA-S USA-C VIR HWA ALS PTR GUM
401             4065           4357      x    x   x   x
403             4071           4363      x    x   x   x        x        x
404             4074           4366      x    x       x             x
405             4077           4369      x    x   x   x        x    x
409             4089           4381      x    x   x   x
410             4092           4384      x                                   x
411             4095           4387      x    x       x
412             4098           4390      x    x   x
414             4104           4396      x        x                 x   x
416             4110           4402      x    x       x             x
417             4113           4405      x    x   x   x
418             4116           4408                   x        x
419             4119           4411           x   x            x        x    x
422             4128           4420      x    x                     x
423             4131           4423      x    x   x   x             x
424             4134           4426                   x
427             4143           4435      x    x   x   x   x    x    x
428             4060           4351               x
604             6209           6510      x    x   x   x        x    x   x    x
605             6212           6513                   x
607             6218           6519               x
802             8198           8722      x        x            x    x
803             8201           8725                   x
804             8204           8728      x    x   x
805             8207           8731      x    x   x
807             8213           8737                   x
808             8216           8740      x    x                x    x        x
809             8219           8743      x    x
810             8222           8746      x    x   x
811             8225           8749      x    x   x
814             8234           8758      x    x   x   x        x    x
815             8237           8761      x    x   x
47 CFR 80.371(b)(1) (enhanced display)                                                                page 142 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                   47 CFR 80.371(b)(1)
Stations in the Maritime Services

Channel Ship transmit Coast transmit USA-E USA-W USA-S USA-C VIR HWA ALS PTR GUM
817             8243           8767                   x
819             8249           8773                   x
822             8258           8782      x    x   x
824             8264           8788      x    x   x
825             8267           8791      x    x   x
826             8270           8794      x            x                      x
829             8279           8803      x    x   x                     x
830             8282           8806               x                     x
831             8285           8809           x   x                     x
836             8113           8713               x
837             8128           8716               x
1201           12230          13077      x    x   x
1202           12233          13080      x    x   x   x
1203           12236          13083      x    x   x   x        x    x
1206           12245          13092      x    x   x
1208           12251          13098      x        x
1209           12254          13101      x    x   x                 x
1210           12257          13104      x    x   x                          x
1211           12260          13107      x    x   x   x             x
1212           12263          13110      x        x            x    x   x
1215           12272          13119           x   x                     x
1217           12278          13125                   x
1222           12293          13140                            x
1223           12296          13143      x    x   x                          x
1225           12302          13149      x        x
1226           12305          13152      x    x   x
1228           12311          13158      x    x       x
1229           12314          13161           x
1230           12317          13164      x    x   x            x
1233           12326          13173               x
1234           12329          13176           x   x            x    x
1235           12232          13179               x
1236           12335          13182               x
1237           12338          13185      x        x   x   x

47 CFR 80.371(b)(1) (enhanced display)                                                page 143 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                   47 CFR 80.371(b)(1)
Stations in the Maritime Services

Channel Ship transmit Coast transmit USA-E USA-W USA-S USA-C VIR HWA ALS PTR GUM
1601           16360          17242      x        x            x    x
1602           16363          17245      x    x   x
1603           16366          17248      x    x   x                 x
1605           16372          17254      x    x
1607           16378          17260      x    x   x                 x
1609           16384          17266      x    x   x
1610           16387          17269      x    x   x
1611           16390          17272      x    x   x
1616           16405          17287      x    x   x            x    x
1620           16417          17299      x            x
1624           16429          17311      x    x   x
1626           16435          17317      x
1631           16450          17332      x
1632           16453          17335      x    x   x                 x
1641           16480          17362      x    x   x
1642           16483          17365      x    x   x   x   x    x    x   x
1643           16486          17368               x
1644           16489          17371      x    x   x   x        x    x
1645           16492          17374               x
1646           16495          17377           x
1647           16498          17380      x    x   x   x             x
1648           16501          17383           x       x   x    x    x   x
1801           18780          19755      x    x   x   x   x    x    x   x
1802           18783          19758      x        x   x   x             x
1803           18786          19761      x    x       x   x    x    x   x
1804           18789          19764           x   x            x    x
1805           18792          19767           x                     x
1807           18798          19773               x
1808           18801          19776      x    x   x   x   x    x    x   x
2201           22000          22696      x    x   x                          x
2205           22012          22708      x    x   x
2210           22027          22723      x
2214           22039          22735      x    x   x
2215           22042          22738      x    x   x

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                   47 CFR 80.371(b)(1)
Stations in the Maritime Services

Channel Ship transmit Coast transmit USA-E USA-W USA-S USA-C VIR HWA ALS PTR GUM
2216           22045          22741      x        x                          x
2222           22063          22759      x
2223           22066          22762      x    x   x            x    x   x
2227           22078          22774      x    x   x
2228           22081          22777      x    x
2231           22090          22786      x    x   x                 x
2236           22105          22801      x    x
2237           22108          22804      x    x   x
2241           22120          22816      x    x   x   x   x    x    x   x
2242           22123          22819               x
2243           22126          22822      x    x   x   x   x    x    x   x
2244           22129          22825           x                x    x
2245           22132          22828           x   x            x    x
2246           22135          22831               x
2247           22138          22834      x    x   x   x   x    x    x
2501           25070          26145      x    x   x   x        x    x
2502           25073          26148      x    x   x   x   x    x    x   x
2503           25076          26151               x
2504           25079          26154      x    x   x   x   x    x    x   x

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                       47 CFR 80.371(b)(2)
Stations in the Maritime Services

           (2) The following table specifies the non-paired carrier frequencies that are available for assignment to
               public coast stations for simplex operations. These frequencies are available for use by authorized
               ship stations for transmissions to coast stations (simplex operations). Assignments on these
               frequencies must accept interference. They are shared with government users and are considered
               “common use” frequencies under the international Radio Regulations. They cannot be notified for
               inclusion in the Master International Frequency Register, which provides stations with interference
               protection, but may be listed in the international List of Coast Stations. (See Radio Regulation No.
               1220 and Recommendation 304.)

                                                Public Correspondence Simplex

                 [Non-paired radiotelephony frequencies in the 4000–27500 kHz Band1 Carrier Frequencies (kHz)]

                 165372                                         18825                   22174                       25100
                 16540                                          18828                   22177                       25103
                                                                18831                                               25106
                                                                18834                                               25109
                                                                18837                                               25112

                 1   Coast stations limited to a maximum transmitter power of 1 kW (PEP).

                 2The alternative carrier frequency 16537 kHz may be used by ship stations and coast stations for
                 calling on a simplex basis, provided that the peak envelope power does not exceed 1 kW.

     (c) Working frequencies in the marine VHF 156–162 MHz band.

           (1)

                 (i)    The frequency pairs listed in this paragraph are available for assignment to public coast
                        stations for communications with ship stations and units on land.

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                                                                                                   47 CFR 80.371(c)(1)(ii)
Stations in the Maritime Services

                                Working Carrier Frequency Pairs in the 156–162 MHz Band1

                                                                              Carrier Frequency (MHz)
                                 Channel designator
                                                                    Ship transmit                Coast transmit
                       24                                                       157.200                         161.800
                       84                                                       157.225                         161.825
                       255                                                      157.250                         161.850
                            2
                       85                                                       157.275                         161.875
                       26                                                       157.300                         161.900
                       86                                                       157.325                         161.925
                       27                                                       157.350                         161.950
                            3
                       87                                                       157.375                         161.975
                       28                                                       157.400                         162.000
                            4
                       88                                                       157.425                         162.025

                      1For special assignment of frequencies in this band in certain areas of Washington State, the
                      Great Lakes and the east coast of the United States pursuant to arrangements between the
                      United States and Canada, see subpart B of this part.

                      2The frequency pair 157.275/161.875 MHz is available on a primary basis to ship and public
                      coast stations. In Alaska it is also available on a secondary basis to private mobile repeater
                      stations.

                      3 The frequency 161.975 MHz is available only for Automatic Identification System
                      communications. In VPCSAs 10–42, site-based stations licensed to operate on frequency
                      161.975 MHz prior to March 2, 2009 may continue to operate on a co-primary basis on that
                      frequency until March 2, 2024.

                      4The frequency 162.025 MHz is available only for Automatic Identification System
                      communications. One hundred twenty kilometers (75 miles) from the United States/Canada
                      border, the frequency 157.425 MHz is available for intership and commercial communications.
                      Outside the Puget Sound area and its approaches and the Great Lakes, 157.425 MHz is
                      available for communications between commercial fishing vessels and associated aircraft
                      while engaged in commercial fishing activities.

                      5In VPCSAs 10–42, the working carrier frequency pair 157.250/161.850 MHz (Channel 25) is
                      not available for assignment under part 80.

                 (ii) Service areas in the marine VHF 156–162 MHz band are VHF Public Coast Service Areas
                      (VPCSAs). As listed in the table in this paragraph (c)(1)(ii), VPCSAs are based on, and
                      composed of one or more of, the U.S. Department of Commerce's 172 Economic Areas (EAs).
                      See 60 FR 13114 (March 10, 1995). In addition, the Commission shall treat Guam and the
                      Northern Mariana Islands, Puerto Rico and the United States Virgin Islands, American Samoa,
                      and the Gulf of Mexico as EA-like areas, and has assigned them EA numbers 173–176,
                      respectively. Maps of the EAs and VPCSAs are available for public inspection through the

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                    47 CFR 80.371(c)(1)(ii)
Stations in the Maritime Services

                      Federal Communications Commission's Reference Information Center, Tel: 1–888–225–5322.
                      In addition to the EAs listed in the table in this paragraph (c)(1)(ii), each VPCSA also includes
                      the adjacent waters under the jurisdiction of the United States. In VPCSAs 10–42, the working
                      carrier frequency pair 157.250 MHz/161.850 MHz (Channel 25) is not available for assignment
                      under this part.

                                                   VHF Public coast station areas (VPCSAs)
                                VPCSAs                                            EAs
                       1 (Northern Atlantic)     1–5, 10
                       2 (Mid-Atlantic)          9, 11–23, 25, 42, 46
                       3 (Southern Atlantic)     24, 26–34, 37, 38, 40, 41, 174
                       4 (Mississippi River)     34, 36, 39, 43–45, 47–53, 67–107, 113, 116–120, 122–125, 127, 130–134,
                                                 176
                       5 (Great Lakes)           6–8, 54–66, 108, 109
                       6 (Southern Pacific)      160–165
                       7 (Northern Pacific)      147, 166–170
                       8 (Hawaii)                172, 173, 175
                       9 (Alaska)                171
                       10 (Grand Forks)          110
                       11 (Minot)                111
                       12 (Bismarck)             112
                       13 (Aberdeen)             114
                       14 (Rapid City)           115
                       15 (North Platte)         121
                       16 (Western Oklahoma)     126
                       17 (Abilene)              128
                       18 (San Angelo)           129
                       19 (Odessa-Midland)       135
                       20 (Hobbs)                136
                       21 (Lubbock)              137
                       22 (Amarillo)             138
                       23 (Santa Fe)             139
                       24 (Pueblo)               140
                       25 (Denver-Boulder-       141
                       Greeley)
                       26 (Scottsbluff)          142
                       27 (Casper)               143
                       28 (Billings)             144
                       29 (Great Falls)          145
                       30 (Missoula)             146
                       31 (Idaho Falls)          148
                       32 (Twin Falls)           149

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                                                                                                  47 CFR 80.371(c)(1)(iii)
Stations in the Maritime Services

                                                     VHF Public coast station areas (VPCSAs)
                                 VPCSAs                                            EAs
                        33 (Boise City)             150
                        34 (Reno)                   151
                        35 (Salt Lake City-Ogden)   152
                        36 (Las Vegas)              153
                        37 (Flagstaff)              154
                        38 (Farmington)             155
                        39 (Albuquerque)            156
                        40 (El Paso)                157
                        41 (Phoenix-Mesa)           158
                        42 (Tucson)                 159

                (iii) Subject to paragraph (c)(3) of this section, each licensee may also operate on 12.5 kHz offset
                      frequencies in areas where the licensee is authorized on both frequencies adjacent to the offset
                      frequency, and in areas where the licensee on the other side of the offset frequency consents to
                      the licensee's use of the adjacent offset frequency. Coordination with Canada is required for
                      offset operations under any circumstance in which operations on either adjoining 25 kHz
                      channel would require such coordination. See § 80.57 of this part.

           (2) Any recovered channel pairs will revert automatically to the holder of the VPCSA license within which
               such channels are included, except the channel pairs listed in the table in paragraph (c)(1)(i) of this
               section. Those channel pairs, and any channel pairs recovered where there is no VPCSA licensee, will
               be retained by the Commission for future licensing.

                (e) Canada/U.S.A. channeling arrangement frequencies. The VHF frequencies assignable to ship and
                coast stations in the State of Washington and their usage limitations pursuant to the Canada/U.S.A.
                channeling arrangement are described in subpart B of this part.

           (4) Subject to the requirements of § 1.924 of this chapter and § 80.21, each VPCSA licensee may place
               stations anywhere within its region without obtaining prior Commission approval provided:

                 (i)   It provides to co-channel coast station incumbent licensees, and incumbent Private Land
                       Mobile Radio licensees authorized under part 90 of this chapter on a primary basis, protection
                       as defined in subpart P of this part. VPCSA licensees that share a common border may either
                       distribute the available frequencies upon mutual agreement or request that the Commission
                       assign frequencies along the common border.

                 (ii) The locations and/or technical parameters of the transmitters are such that individual
                      coordination of the channel assignment(s) with a foreign administration, under applicable
                      international agreements and rules in this part, is not required.

                (iii) For any construction or alteration that would exceed the requirements of § 17.7 of this chapter,
                      licensees must notify the appropriate Regional Office of the Federal Aviation Administration
                      (FAA Form 7460–1) and file a request for antenna height clearance and obstruction marking
                      and lighting specifications (FCC Form 854) with the FCC, Attn: Information Processing Branch,
                      1270 Fairfield Rd., Gettysburg, PA 17325–7245.

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                                                                                                 47 CFR 80.371(c)(4)(iv)
Stations in the Maritime Services

                  (iv) The transmitters must not have a significant environmental effect as defined by §§ 1.1301
                       through 1.1319 of this chapter.

     (d) Working frequencies in the Mississippi River System. The Mississippi River System includes the
         Mississippi River and connecting navigable waters other than the Great Lakes. The following simplex
         frequencies are available for assignment to public coast stations serving the Mississippi River System for
         radiotelephony communications. These simplex frequencies also are available for use by authorized ship
         stations within communication service range, whether or not the ship is operating within the confines of
         the Mississippi River System.

                Mississippi River System Working Frequencies; Carrier Frequencies (kHz)

                        20861            4065         6209            8201            12362             16543
                        2782             4089         6212            8213            12365             16546
                                         4116         6510            8725
                                         4408         6513            8737

           1
               Limited to a maximum transmitter output of 150 watts (PEP).

     (e) Canada/U.S.A. channeling arrangement frequencies. The VHF frequencies assignable to ship and coast
         stations in the State of washington and their usage limitations purusant to the Canada/U.S.A. channeling
         arrangement are described in subpart B of this part.

[51 FR 31213, Sept. 2, 1986]

Editorial Note: For FEDERAL REGISTER citations affecting § 80.371, see the List of CFR Sections Affected, which
appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

§ 80.373 Private communications frequencies.
This section describes the carrier frequencies assignable for ship-to-ship and ship-to-coast private
communications.

     (a) Special requirements for private coast stations. Assignment to private coast stations of radiotelephony
         frequencies in the 2000–27500 kHz band are subject to the following:

           (1) Private coast stations must use J3E emission.

           (2) On 2182 kHz, private coast stations must be capable of receiving J3E and H3E emissions.

           (3) Except in the Mississippi River System and Great Lakes, private coast stations serving lakes or rivers
               are not authorized on the 2000–2850 kHz band.

           (4) Private coast stations may use DSC for calling on their assigned frequencies in the 2000–27500 kHz
               band and on those frequencies in the 156–162 MHz band which are allocated for maritime control,
               commercial and non-commercial communications.

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                             47 CFR 80.373(b)
Stations in the Maritime Services

     (b) Frequencies in the 2000–27500 kHz band for intership safety and other communications. This paragraph
         describes the geographic areas of operation and the frequencies and limitations in the band available for
         assignment for intership safety and operational simplex radiotelephone communications.

           (1) Frequencies avaiable.

                     Carrier frequency (kHz)                                 Geographic area
                 2003.0                        Great Lakes only.
                          12
                 2082.5                        All areas.
                          1
                 2093.0                        All areas.
                 2142.0                        Pacific coast areas south of 42 degrees north on a day basis only.
                          2
                 2203.0                        Gulf of Mexico.
                          1
                 2214.0                        All areas.
                 2638.01                       All areas.
                 2670.0                        All areas.
                 2738.01                       All areas except the Great Lakes.
                 2830.0                        Gulf of Mexico only.

                1   Limited to a peak envelope power of 150 watts.

                2
                 Available on a secondary basis for intership communications by ships involved in non-
                commercial fishing.

           (2) Except for 2093.0 kHz and 2214.0 kHz the frequencies shown in paragraph (b)(1) of this section are
               authorized primarily for intership safety communications in the indicated geographic area.

           (3) Except for the frequencies 2093.0 kHz, 2214.0 kHz and 2670.0 kHz, the frequencies shown in
               paragraph (b)(1) of this section may be used on a non-interference basis to safety communications,
               for operational communications and, in the case of commercial transport ships and ships of
               municipal and state governments, for business communications.

           (4) Ship stations may communicate with government coast stations on 2003.0 kHz about passage of
               vessels. Interference must not be caused to communications on the St. Lawrence Seaway and on
               the St. Mary's River.

           (5) Ship stations may use 2670.0 kHz for communications with coast and ship stations of the U.S. Coast
               Guard. When a ship is not equipped to transmit on 2670.0 kHz or in the band 156–162 MHz the
               frequency 2003.0 kHz may be used on the Great Lakes for communications must not cause harmful
               interference to intership safety, operational and business communications.

           (6) Navigational communications between ships and private coast stations may be exchanged on
               2738.0 kHz and 2830.0 kHz. The frequencies 2214.0 kHz, 2738.0 kHz and 2830.0 kHz are assignable
               to private coast stations upon a showing that they need to communicate with commercial transport
               or Government ships. Private coast station applicants must show that public coast stations do not
               provide the required communications and harmful interference will not be caused to the intership
               use of these frequencies. The transmitter power must not exceed 150 watts. If 2214.0 kHz is

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                     47 CFR 80.373(b)(7)
Stations in the Maritime Services

                authorized for ships, intership communication is also authorized. The geographic limitations to the
                frequencies 2738.0 kHz and 2830.0 kHz do not prohibit intership communication of less than 320
                km (200 statute miles) when only one of the ship stations is within a permitted use geographic area.

           (7) Private aircraft stations may communicate with ship stations on 2738.0 kHz and 2830.0 kHz if:

                 (i)   The communications are limited to business or operational needs of the vessel while it is
                       engaged in commercial fishing activities in the open sea or adjacent waters;

                (ii) Harmful interference must not be caused to intership communications;

                (iii) The maximum output power used for such communication must not exceed 25 watts;

     (c) Frequencies in the 2000–27500 kHz bands for business and operational communications.

           (1) The following simplex frequencies in the 2000–27500 kHz band are available for assignment to
               private coast stations for business and operational radiotelephone communications. These simplex
               frequencies also are available for use by authorized ship stations for business and operational
               radiotelephone communications.

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                                                                                                                                          47 CFR 80.373(c)(1)
Stations in the Maritime Services

                Business and Operational Frequencies in the 2000–27500 kHz Band; Carrier Frequencies (kHz)

2065.01 3    4146 6224 8294    12353 16528 18840 22159 25115
2079.01 3    4149 6227 8297    12356 16531 18843 22162 25118
2096.51      41252      6230   123596 16534         22165
         4          5
3023.0       4417       6516                        22168
             56804                                  22171
1   Limited to peak envelope power of 150 watts.

2   The frequency 4125 kHz is also available for distress and safety, and calling and reply, see § 80.369 (b) and (d) of this part.

3   The frequencies 2065.0 kHz and 2079.0 kHz must be coordinated with Canada.

4 The frequencies 3023.0 kHz and 5680.0 kHz are available to private coast stations licensed to state and local governments and any scene-of-action ships
for the purpose of search and rescue scene-of-action coordination including communications with any scene-of-action aircraft.

5The frequency 6516 kHz is limited to daytime operations. The frequencies 4417 kHz and 6516 kHz are also available for calling and reply, see § 80.369(d)
of this part.

6The alternative carrier frequency 12359 kHz may be used by ship stations and coast stations for calling on a simplex basis, provided that the peak
envelope power does not exceed 1 kW.

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                                                                                                     47 CFR 80.373(c)(2)
Stations in the Maritime Services

           (2) Assignment of these frequencies is subject to the following general limitations:

                 (i)   These frequencies are shared and are not available for the exclusive use of any station. No
                       more than one frequency from each of the frequency bands will be authorized to a private
                       station without justification;

                (ii) The emissions must be J3E or J2D except that when DSC is used the emission must be F1B or
                     J2B; and

                (iii) Maximum transmitter output power is limited to 1 kW except as noted.

           (3) In addition to the frequencies shown in paragraph (c)(1) of this section, the following coast transmit
               frequencies listed in the table in § 80.371(a) of this chapter are available for assignment to private
               coast stations and authorized ship stations for simplex business and operational radiotelephone
               communications: in the East Coast, West Coast, and Gulf Coast regions, 2482 kHz; in the Alaska
               region, 2309 kHz. These frequencies shall not be assigned to public coast stations before July 25,
               2002. After that date, only the above frequencies in the above regions that have been assigned to at
               least one private coast station shall continue to be available for assignment to private coast
               stations. If, by that date, in any of the above regions, any of the above frequencies has not been
               assigned to a private coast station, that frequency in that region shall be available for assignment
               only to public coast stations.

     (d) Radioprinter frequencies.

           (1) The following table describes the bands available for radioprinter simplex communications between
               ship and private coast stations:

Frequency Bands (kHz)

                2107–2170 4750–4850

                2194–2495 5060–5450

                2505–2850 5700–59501

                3155–3400 7300–81001

                4438–4650
          1 After April 1, 2007, use of the sub-bands 5900–5950 kHz and 7300–7350 kHz shall be on the condition
          that harmful interference is not caused to HF broadcasting.

           (2) Ship stations may conduct radioprinter communications with private coast stations on frequencies
               within these bands which are assigned to their associated private coast stations;

           (3) Any alphanumeric code may be used; and

           (4) The bandwidth of radioprinter communications on frequencies within these bands must not exceed
               300 Hz.

     (e) Frequencies in the 2000–27500 kHz band for medical advisory communications.

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                        47 CFR 80.373(e)(1)
Stations in the Maritime Services

           (1) Private coast stations may be authorized to use any frequencies within the 2030–27500 kHz band
               that are allocated to Government and non-Government fixed or fixed and mobile radio services
               shown in the Commission's Table of Frequency Allocations contained in § 2.106 of this chapter for
               communications with ship stations to provide medical treatment information or advice. Assignment
               of these frequencies is subject to the following limitations:

           (2) No protection is provided from harmful interference caused by foreign stations; and

           (3) A private coast station must cease operations on a frequency that causes harmful interference to a
               foreign station.

     (f) Frequencies in the 156–162 MHz band. The following tables describe the carrier frequencies available in
         the 156–162 MHz band for radiotelephone communications between ship and private coast stations.
         (NOTE: the letter “A” following the channel designator indicates simplex operation on a channel designated
         internationally as a duplex channel.)

                                      Frequencies in the 156–162 MHz Band

                            Carrier         Carrier
            Channel       frequency       frequency      Points of communication (intership and between coast and
           designator    (MHz) ship      (MHz) coast                  ship unless otherwise indicated)
                           transmit        transmit
                                                        Port Operations
           01A1               156.050         156.050
           63A1               156.175         156.175
           05A2               156.250         156.250
           65A                156.275         156.275
           66A                156.325         156.325
           123                156.600         156.600
           73                 156.675         156.675
           143                156.700         156.700
           74                 156.725         156.725
           774                156.875                   Intership only.
           20A12              157.000                   Intership only.
                                                Navigational (Bridge-to-Bridge)5
           677                156.375         156.375
           136                156.650         156.650
                                                          Commercial
           01A1               156.050         156.050
           63A1               156.175         156.175
           07A                156.350         156.350
           677                156.375                   Intership only.
           08                 156.400                   Do.
           09                 156.450         156.450
           10                 156.500         156.500

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                                 47 CFR 80.373(f)
Stations in the Maritime Services

                            Carrier         Carrier
            Channel       frequency       frequency      Points of communication (intership and between coast and
           designator    (MHz) ship      (MHz) coast                  ship unless otherwise indicated)
                           transmit        transmit
           113                156.550         156.550
           7214               156.625                   Intership only.
           18A                156.900         156.900
           19A                156.950         156.950
           79A                156.975         156.975
           80A                157.025         157.025
                 8
           88A                157.425         157.425
                                                     Digital Selective Calling
           7015               156.525         156.525
                                                         Noncommercial
           6714               156.375                   Intership only.
           6817               156.425         156.425
           0916               156.450         156.450
           69                 156.475         156.475
           7118               156.575         156.575
           72                 156.625                   Intership only.
           78A                156.925         156.925
           79A                156.975         156.975 Great Lakes only.
           80A                157.025         157.025 Do.
                                                   Distress, Safety and Calling
           16                 156.800         156.800
                                                         Intership Safety
           06                 156.300                   a. Intership, or b. For SAR: Ship and aircraft for the U.S. Coast
                                                        Guard.
                                                         Environmental
           1513                               156.750 Coast to ship only.
                                                        Maritime Control
           179 10             156.850         156.850
                                        Liaison and Safety Broadcasts, U.S. Coast Guard
           22A11              157.100         157.100 Ship, aircraft, and coast stations of the U.S. Coast Guard and
                                                      at Lake Mead, Nev., ship and coast stations of the National
                                                      Park Service, U.S. Department of the Interior.

           1156.050 MHz and 156.175 MHz are available for port operations and commercial
           communications purposes when used only within the U.S. Coast Guard designated Vessel Traffic
           Services (VTS) area of New Orleans, on the lower Mississippi River from the various pass
           entrances in the Gulf of Mexico to Devil's Swamp Light at River Mile 242.4 above head of passes
           near Baton Rouge.

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                                                                                                           47 CFR 80.373(f)
Stations in the Maritime Services

           2156.250 MHz is available for port operations communications use only within the U.S. Coast
           Guard designated VTS radio protection areas of New Orleans and Houston described in § 80.383.
           156.250 MHz is available for intership port operations communications used only within the area of
           Los Angeles and Long Beach harbors, within a 25-nautical mile radius of Point Fermin, California.

           3156.550 MHz, 156.600 MHz and 156.700 MHz are available in the U.S. Coast Guard designated
           port areas only for VTS communications and in the Great Lakes available primarily for
           communications relating to the movement of ships in sectors designated by the St. Lawrence
           Seaway Development Corporation or the U.S. Coast Guard. The use of these frequencies outside
           VTS and ship movement sector protected areas is permitted provided they cause no interference to
           VTS and ship movement communications in their respective designated sectors.

           4Use of 156.875 MHz is limited to communications with pilots regarding the movement and
           docking of ships. Normal output power must not exceed 1 watt.

           5 156.375 MHz and 156.650 MHz are available primarily for intership navigational communications.
           These frequencies are available between coast and ship on a secondary basis when used on or in
           the vicinity of locks or drawbridges. Normal output power must not exceed 1 watt. Maximum
           output power must not exceed 10 watts for coast stations or 25 watts for ship stations.

           6 On the Great Lakes, in addition to bridge-to-bridge communications, 156.650 MHz is available for
           vessel control purposes in established vessel traffic systems. 156.650 MHz is not available for use
           in the Mississippi River from South Pass Lighted Whistle Buoy “2” and Southwest Pass entrance
           Mid-channel Lighted Whistle Buoy to mile 242.4 above Head of Passes near Baton Rouge.
           Additionally it is not available for use in the Mississippi River-Gulf Outlet, the Mississippi River-Gulf
           Outlet Canal, and the Inner Harbor Navigational Canal, except to aid the transition from these areas.

           7 Use of 156.375 MHz is available for navigational communications only in the Mississippi River
           from South Pass Lighted Whistle Buoy “2” and Southwest Pass entrance Mid-channel Lighted
           Whistle Buoy to mile 242.4 above Head of Passes near Baton Rouge, and in addition over the full
           length of the Mississippi River-Gulf Outlet Canal from entrance to its junction with the Inner Harbor
           Navigational Canal, and over the full length of the Inner Harbor Navigational Canal from its junction
           with the Mississippi River to its entry to Lake Pontchartrain at the New Seabrook vehicular bridge.

           8 Within that portion of VHF Public Coast Station Areas (VPCSAs) 1 through 9 listed in the table in
           Section 80.371(c)(1)(ii) within 120 km (75 miles) of the United States/Canada border, in the area of
           the Great Lakes, the Saint Lawrence Seaway, and the Puget Sound and the Strait of Juan de Fuca
           and its approaches, Maritime VHF Channel 88A (157.425 MHz) is available for use for public
           correspondence communications, subject to prior coordination with Canada. Maritime VHF
           Channel 88B (162.025 MHz) is available only for Automatic Identification System communications.
           One hundred twenty kilometers (75 miles) from the United States/Canada border, 157.425 MHz is
           available for intership and commercial communications. Outside the Puget Sound area and its
           approaches and the Great Lakes, 157.425 MHz is available for communications between
           commercial fishing vessels and associated aircraft while engaged in commercial fishing activities.

           9
             When the frequency 156.850 MHz is authorized, it may be used additionally for search and rescue
           training exercises conducted by state or local governments.

47 CFR 80.373(f) (enhanced display)                                                                         page 157 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                            47 CFR 80.373(g)
Stations in the Maritime Services

           10 The frequency 156.850 MHz is additionally available to coast stations on the Great Lakes for
           transmission of scheduled Coded Marine Weather Forecasts (MAFOR), Great Lakes Weather
           Broadcast (LAWEB) and unscheduled Notices to Mariners or Bulletins. F3C and J3C emissions are
           permitted. Coast stations on the Great Lakes must cease weather broadcasts which cause
           interference to stations operating on 156.800 MHz until the interference problem is resolved.

           11
              The frequency 157.100 MHz is authorized for search and rescue training exercises by state or
           local government in conjunction with U.S. Coast Guard stations. Prior U.S. Coast Guard approval is
           required. Use must cease immediately on U.S. Coast Guard request.

           12The duplex pair for channel 20 (157.000/161.600 MHz) may be used for ship to coast station
           communications.

           13 Available for assignment to coast stations, the use of which is in accord with an agreed program,
           for the broadcast of information to ship stations concerning the environmental conditions in which
           vessels operate, i.e., weather; sea conditions; time signals; notices to mariners; and hazards to
           navigation.

           14   Available only in the Puget Sound and the Strait of Juan de Fuca.

           15The frequency 156.525 MHz is to be used exclusively for distress, safety and calling using digital
           selective calling techniques. No other uses are permitted.

           16The frequency 156.450 MHz is available for intership, ship and coast general purpose calling by
           noncommercial vessels, such as recreational boats and private coast stations.

           17 The frequency 156.425 MHz is assigned by rule to private coast stations in Alaska for facsimile
           transmissions as well as voice communications.

           18156.575 MHz is available for port operations communications use only within the U.S. Coast
           Guard designated VTS radio protection area of Seattle (Puget Sound) described in § 80.383.
           Normal output power must not exceed 1 watt. Maximum output power must not exceed 10 watts.

     (g)

           (1) On-board communications: This section describes the carrier frequency pairs assignable for on-
               board mobile radiotelephony communications. The center of the on-board repeater antenna must
               not be located more than 3 meters (10 feet) above the ship's working deck. These frequencies are
               available on a shared basis with stations in the Industrial/Business Radio Pool.

                                         Frequencies for On-Board Communications

                                                                  Carrier frequency (MHz)
                       Channel                On-board mobile
                                                                                    On-board repeater station1
                                                  station
                   1                                        467.750                                              457.525
                   2                                        467.775                                              457.550

47 CFR 80.373(g)(1) (enhanced display)                                                                       page 158 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                     47 CFR 80.373(g)(2)
Stations in the Maritime Services

                                                                 Carrier frequency (MHz)
                         Channel              On-board mobile
                                                                                On-board repeater station1
                                                  station
                 3                                          467.800                                             457.575
                 4                                          467.825                                             457.600

                1
                 These frequencies may also be assigned to mobile stations for single frequency simplex
                operation.

           (2) Where needed, equipment designed for 12.5 kHz channel spacing using the additional frequencies
               457.5375 MHz, 457.5625 MHz, 467.5375 MHz, and 467.5625 MHz may be introduced for on-board
               communications.

     (h) Repeater frequencies in Alaska. The following frequencies are assignable on a primary basis to public and
         on a secondary basis to private coast stations in Alaska for maritime repeater operations:

     Repeater receive: 157.275 MHz

     Repeater transmit: 161.875 MHz

     (i)   Frequencies in the 1600–5450 kHz band for private communications in Alaska. The following simplex
           frequencies are available for assignment to private fixed stations located in the State of Alaska for
           radiotelephony communications with ship stations. These simplex frequencies are available for use by
           authorized ship stations for radiotelephony communications with private fixed stations located in the
           State of Alaska.

                          Private communications in Alaska Carrier frequencies (kHz)

            1619.03                                                   2382.0                                2563.0
            1622.03                                                   2419.0                                2566.0
            1643.03                                                   2422.0                                2590.0
                     3
            1646.0                                                    2427.0                                2616.0
            1649.03                                                   2430.0                                3258.0
            1652.03                                                   2447.0                            1   3261.0
            1705.03                                                   2450.0                                4366.0
            1709.0                                                    2479.0                                4369.0
            1712.0                                                    2482.0                                4396.0
            2003.0                                                    2506.0                                4402.0
            2006.0                                                    2509.0                                4420.0
            2115.0                                                    2512.0                                4423.0
                                                                                                        2
            2118.0                                                    2535.0                                5167.5
            2379.0                                                    2538.0

           1 Ship stations must limit use of 3261.0 kHz to communications over distances which cannot be
           reached by the use of frequency below 2700 kHz or above 156.000 MHz.

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                                                                                                        47 CFR 80.373(j)
Stations in the Maritime Services

           2 The frequency 5167.5 kHz is available for emergency communications in Alaska. Peak envelope
           power of stations operating on this frequency must not exceed 150 watts. When a station in Alaska
           is authorized to use 5167.5 kHz, such station may also use this frequency for calling and listening
           for the purpose of establishing communications.

           3   Use of these frequencies is on a secondary basis to Region 2 broadcasting.

     (j)   Frequencies for portable ship stations. VHF frequencies authorized for stations authorized carrier
           frequencies in the 156.275 MHz to 157.450 MHz and 161.575 MHz to 162.025 MHz bands may also be
           authorized as marine utility stations. Marine-utility stations on shore must not cause interference to any
           Automatic Identification System, VHF or coast station, VHF or UHF land mobile base station, or U.S.
           Government station.

[51 FR 31213, Sept. 2, 1986; 51 FR 34984, Oct. 1, 1986]

Editorial Note: For FEDERAL REGISTER citations affecting § 80.373, see the List of CFR Sections Affected, which
appears in the Finding Aids section of the printed volume and at www.govinfo.gov.

§ 80.374 Provisions for frequencies in the 4000–4063 and the 8100–8195 kHz bands shared
with the fixed service.
Coast station assignments in the 4000–4063 kHz band deviate from international provisions. Coast station
assignments in the 4000–4063 kHz band are permitted provided that such stations must not cause interference to,
and must accept interference from, stations operated by other countries in accordance with the Radio Regulations.

47 CFR 80.374 (enhanced display)                                                                        page 160 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                     47 CFR 80.374(a)
Stations in the Maritime Services

     (a) Frequencies in the 4000–4063 kHz band.

           (1) The frequencies in the 4000–4063 kHz bands are available to ship and public coast stations for:

                 (i)   Supplementary ship-to-shore duplex operations with coast stations assigned the frequencies
                       described in § 80.371(b) of this part;

                (ii) Intership simplex operations and cross-band operations;

                (iii) Ship-to-shore or shore-to-ship simplex operations; or

                (iv) Duplex operations with coast stations assigned in the band 4438–4650 kHz, as described in §
                     80.373(d) of this part.

           (2) The following table describes the channelization of carrier frequencies in the 4000–4063 kHz band.

                                                  Carrier Frequencies (kHz)

                                     4000                    4015                    4030                    4045
                                     4003                    4018                    4033                    4048
                                     4006                    4021                    4036                    4051
                                     4009                    4024                    4039                    4054
                                     4012                    4027                    4042                    4057

     (b) Frequencies in the 8100–8195 kHz band.

           (1) The frequencies in the 8100–8195 kHz bands are available to ship and public coast stations for:

                 (i)   Supplementary ship-to-shore duplex operations with coast stations assigned the frequencies
                       described in § 80.371(b) of this part;

                (ii) Intership simplex operations and cross-band operations; or

                (iii) Ship-to-shore or shore-to-ship simplex operations.

           (2) The following table describes the channelization of carrier frequencies in the 8100–8195 kHz band.

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                                                                                                          47 CFR 80.375
Stations in the Maritime Services

                                     Carrier Frequencies (kHz)

                              8101                                8137                            8167
                              8104                                8140                            8170
                              8107                                8143                            8173
                              8110                                8146                            8176
                              8116                                8149                            8179
                              8119                                8152                            8182
                              8122                                8155                            8185
                              8125                                8158                            8188
                              8131                                8161                            8191
                              8134                                8164

[56 FR 9896, Mar. 8, 1991, as amended at 65 FR 77826, Dec. 13, 2000; 68 FR 46970, Aug. 7, 2003]

                                                  RADIODETERMINATION

§ 80.375 Radiodetermination frequencies.
This section describes the carrier frequencies assignable to radiodetermination stations. Only direction finding
radar stations will be authorized on land.

     (a) Direction finding frequencies. The carrier frequencies assignable to ship stations for directional finding
         operations are:

Carrier Frequency

           8364 kHz

           121.500 MHz

           243.00 MHz
     (b) Radiodetermination frequencies for cable-repair ships. Except in Region 1 the channels in the 285–325
         kHz band are assignable to ship stations for cable-repair radiodetermination operations. In Region 1 the
         channels available for assignment for such operations are limited to the 285–315 kHz band. The
         conditions of use of these channels are set forth in subpart X of this part. Channel usage must comply
         with the following requirements:

           (1) They are not permitted within the territorial waters of a foreign country;

           (2) Their output power must not exceed 15 watts; and

           (3) They must not cause interference to any maritime station in the radionavigation service.

     (c) Radiodetermination frequencies below 500 MHz. The frequencies 154.585 MHz, 159.480 MHz, 160.725
         MHz, 160.785 MHz, 454.000 MHz and 459.000 MHz are authorized for offshore radiolocation and
         associated telecommand operations under a ship station license provided:
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                                                                                                            47 CFR 80.375(c)(1)
Stations in the Maritime Services

           (1) The use of these frequencies is related to the ship's commercial operations;

           (2) The station antenna height does not exceed 6 meters (20 feet) above sea level in a buoy station or 6
               meters (20 feet) above the mast of the ship in which it is installed.

     (d) Radiodetermination frequency bands above 2400 MHz.

           (1) The radiodetermination frequency bands assignable to ship and shore stations including ship and
               shore radar and transponder stations are as follows: 2450–2500 MHz; 2900–3100 MHz; 5460–5650
               MHz; and 9300–9500 MHz.

           (2) Assignment of these bands to ship and coast stations are subject to the following conditions:

                 (i)   The 2450–2500 MHz band may be used only for radiolocation on the condition that harmful
                       interference must not be caused to the fixed and mobile services. No protection is provided
                       from interference caused by emissions from industrial, scientific, or medical equipment;

                (ii) The use of the 2900–3100 MHz, 5470–5650 MHz and 9300–9500 MHz bands for radiolocation
                     must not cause harmful interference to the radionavigation and Government radiolocation
                     services. Additionally, the use of the 2900–3000 MHz band for radiolocation must not cause
                     harmful interference to the Government meteorological aids service.

                (iii) In the 2920–3100 MHz and 9320–9500 MHz bands the use of fixed-frequency transponders for
                      radionavigation is not permitted;

                (iv) Non-Government radiolocation stations may be authorized in the 5460–5470 MHz band on the
                     condition that harmful interference shall not be caused to the aeronautical or maritime
                     radionavigation services or to Government radiolocation service;

                (v) The use of the 5460–5650 MHz band for radionavigation is limited to shipborne radar.

     (e) Search and rescue radar transponder stations. The technical standards for search and rescue transponder
         stations are in subpart W of this part.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 7419, Mar. 11, 1987; 55 FR 6394, Feb. 23, 1990; 57 FR 26779, June 16, 1992; 58
FR 44953, Aug. 25, 1993; 68 FR 46970, Aug. 7, 2003; 76 FR 67615, Nov. 2, 2011]

§ 80.376 Radio buoy operations.
Frequencies in the 1900–2000 kHz band are authorized for radio buoy operations under a ship radio station license
provided:

     (a) The use of these frequencies is related to commercial fishing operations on the open sea and the Great
         Lakes; and

     (b) The output power does not exceed 8 watts and the station antenna height does not exceed 4.6 meters
         above sea level in a buoy station or 6 meters above the mast of the ship on which it is installed.

[82 FR 27213, June 14, 2017]

                                                  SHIP EARTH STATIONS

47 CFR 80.376(b) (enhanced display)                                                                            page 163 of 268
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                                                                                                          47 CFR 80.377
Stations in the Maritime Services

§ 80.377 Frequencies for ship earth stations.
The frequency band 1626.5–1645.5 MHz is assignable for communication operations and radiodetermination and
telecommand messages that are associated with the position, orientation and operational functions of maritime
satellite equipment. The frequency band 1645.5–1646.5 MHz is reserved for use in the Global Maritime Distress
and Safety System (GMDSS).

[78 FR 25175, Apr. 29, 2013]

                                                   AIRCRAFT STATIONS

§ 80.379 Maritime frequencies assignable to aircraft stations.
This section describes the maritime frequencies assignable to aircraft stations for simplex operations:

     (a) Available frequencies:

                               Carrier frequency                              Conditions of use
            2738 kHz                                                                                         (1)
            2830 kHz                                                                                         (1)
            3023 kHz                                                                                         (2)
            4125 kHz                                                                                         (3)
            5680 kHz                                                                                         (2)
            121.500 MHz                                                                                      (4)
            123.100 MHz                                                                                      (4)
            156.300 MHz                                                                                      (5)
            156.375 MHz                                                                                      (5)
            156.400 MHz                                                                                      (5)
            156.425 MHz                                                                                      (5)
            156.450 MHz                                                                                      (5)
            156.625 MHz                                                                                      (5)
            156.800 MHz                                                                                      (5)
            156.900 MHz                                                                                      (5)
            157.100 MHz                                                                                      (6)
            157.425 MHz                                                                                   (5)(7)

     (b) The conditions of use of the carrier frequencies in paragraph (a) of this section, are:

           (1) For permissible geographic areas of operation see § 80.373(b)(1). For other limitations see §
               80.373(b)(7);

           (2) Aircraft and ship stations may use 3023.0 kHz and 5680.0 kHz for search and rescue scene-of-action
               coordination including communications between these stations and participating land stations.
               Stations using these frequencies must use J3E emission;

           (3) Assignable for distress and safety communications between aircraft and maritime mobile stations;

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                                                                                                      47 CFR 80.379(b)(4)
Stations in the Maritime Services

           (4) Assignable for search and rescue between ships and aircraft. Stations using these frequencies must
               use A3E emission;

           (5) These frequencies may be used by aircraft stations when:

                   (i)   The altitude of aircraft stations does not exceed 300 meters (1,000 feet), except for
                         reconnaissance aircraft participating in icebreaking operations where an altitude of 450 meters
                         (1,500 feet) is allowed;

                (ii) The mean power of aircraft stations must not exceed five watts;

                (iii) Communications are limited to operations in which the maritime mobile stations are primarily
                      involved and where direct communications between the aircraft and the ship or coast station is
                      required;

                (iv) Stations may use 156.300 MHz for safety purposes only;

                (v) Stations may use 156.800 MHz for distress, safety and calling only; and

                (vi) Use of 156.375 MHz by aircraft is not permitted in the New Orleans VTS area specified in §
                     80.383.

           (6) The use of 157.100 MHz is limited to communications with stations of the Department of Interior at
               Lake Mead, Nevada; and

           (7) Commercial fishing vessels and associated aircraft may use 157.425 MHz while engaged in
               commercial fishing activities except within 120 km (75 miles) of the United States/Canada border
               and Puget Sound and the Strait of Juan de Fuca and its approaches, the Great Lakes, and the St.
               Lawrence Seaway.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44953, Aug. 25, 1993]

                                              OPERATIONAL FIXED STATIONS

§ 80.381 Frequencies for operational fixed stations.
The following carrier frequencies in the 72–76 MHz band are assignable to operational fixed stations using vertical
polarization, if no harmful interference is caused to TV reception on Channels 4 and 5. These frequencies are
shared with the Land Mobile and Aviation Radio Services.

                Operational Fixed Frequencies in the 72–76 MHz Band

Carrier frequency in MHz

           72.02               72.28            72.64            72.90           75.68            75.94
           72.04               72.30            72.66            72.92           75.70            75.96
           72.06               72.32            72.68            72.94           75.72            75.98
           72.08               72.34            72.70            72.96           75.74
           72.10               72.36            72.72            72.98           75.76
           72.12               72.38            72.74            75.42           75.78

47 CFR 80.381 (enhanced display)                                                                          page 165 of 268
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                                                                                                                   47 CFR 80.383
Stations in the Maritime Services

           72.14              72.40              72.76             75.46              75.80
           72.16              72.42              72.78             75.50              75.82
           72.18              72.46              72.80             75.54              75.84
           72.20              72.50              72.82             75.58              75.86
           72.22              72.54              72.84             75.62              75.88
           72.24              72.58              72.86             75.64              75.90
           72.26              72.62              72.88             75.66              75.92

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 40059, Sept. 29, 1989]

                                           VESSEL TRAFFIC SERVICES SYSTEM (VTS)

§ 80.383 Vessel Traffic Services (VTS) system frequencies.
This section describes the carrier frequencies available for use in the Coast Guard Vessel Traffic Services (VTS)
systems within the designated geographic radio protected areas.

     (a) Assigned frequencies:

                                           Vessel Traffic Control Frequencies

               Carrier frequencies (MHz)                                   Geographic areas
           156.250                          Seattle.
           156.550                          New York, New Orleans,2 Houston, Prince William Sound,2 Berwick Bay.
           156.600                          New York, New Orleans,2 Houston, San Francisco,2 Sault Ste. Marie.2
           156.700                          New York, New Orleans,2 Seattle, San Francisco.1

           1 Private coast station licenses for the use of this frequency will not be renewed beyond November
           1, 1997. Continued use until expiration must be on a noninterference basis to Coast Guard VTS
           communications.

           2Private coast station licenses for the use of this frequency in this area will expire at the end of the
           current license term or five years after the adopted date of the final rule, whichever comes first.
           Continued use until expiration must be on a noninterference basis to Coast Guard VTS
           communications.

     (b) The U.S. Coast Guard designated radio protection areas for VTS are as follows:

           (1) New York. The rectangle between north latitudes 40 degrees and 42 degrees and west longitudes 71
               degrees and 74 degrees 30 minutes;

           (2) New Orleans. The rectangle between North latitudes 27 degrees 30 minutes and 31 degrees 30
               minutes and West longitudes 87 degrees 30 minutes and 93 degrees;

           (3) Houston. The rectangle between north latitudes 28 degrees 30 minutes and 30 degrees 20 minutes
               and west longitudes 93 degrees 30 minutes and 96 degrees;

47 CFR 80.383(b)(3) (enhanced display)                                                                            page 166 of 268
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                                                                                                            47 CFR 80.383(b)(4)
Stations in the Maritime Services

           (4) Seattle (Puget Sound). The area encompassed between the United States-Canadian border and a line
               drawn from 49 degrees North 121 degrees West on the United States-Canadian Border, to 46
               degrees 30 minutes North 121 degrees West, then to 46 degrees 30 minutes North 125 degrees
               West, then to 48 degrees 30 minutes North 125 degrees West, and then east to the United States-
               Canadian Border;

           (5) San Francisco. The rectangle between north latitudes 39 degrees and 37 degrees and west
               longitudes 120 degrees 50 minutes and 123 degrees 20 minutes; and

           (6) Prince William Sound. The rectangle between North latitudes 61 degrees 17 minutes and 59 degrees
               22 minutes and West longitudes 149 degrees 39 minutes and 145 degrees 36 minutes.

           (7) Sault Ste. Marie. The rectangle between North latitudes 45 degrees and 47 degrees, and West
               longitudes 83 degrees and 85 degrees.

           (8) Berwick Bay. The rectangle between North latitudes 28 degrees 30 minutes and 30 degrees 30
               minutes, and West longitudes 90 degrees 50 minutes and 92 degrees.

     (c) The use of the frequencies shown in paragraph (a) of this section is permitted in areas outside the Coast
         Guard radio protection areas provided there is no interference to VTS communications within the VTS
         areas.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987; 54 FR 8746, Mar. 2, 1989; 55 FR 46514, Nov. 5, 1990; 58
FR 16504, Mar. 29, 1993; 61 FR 26120, May 24, 1996; 61 FR 26466, May 28, 1996; 63 FR 53313, Oct. 5, 1998]

                                                   AUTOMATED SYSTEMS

§ 80.385 Frequencies for automated systems.
This section describes the carrier frequencies for the Automated Maritime Telecommunications System (AMTS)
and for other automated multi-station systems.

     (a) Automated Maritime Telecommunications System (AMTS).

           (1) The Automated Maritime Communications System (AMTS) is an automated maritime
               telecommunications system.

           (2) The following carrier frequencies are available for assignment to public coast stations for public
               correspondence communications with ship stations and units on land. AMTS operations must not
               cause harmful interference to the U.S. Navy SPASUR system which operates in the band
               216.880–217.080 MHz.

                                                                          Carrier frequency (MHz)
                         Channel No.                     Ship
                                                                                   Coast transmit2                 Group
                                                      transmit1 3
                 101                                                                                216.0125 D
                 102                                                                                216.0375
                 103                                                                                216.0625
                 104                                                                                216.0875
                 105                                                                                216.1125

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                                                                                                  47 CFR 80.385(a)(2)
Stations in the Maritime Services

                                                                 Carrier frequency (MHz)
                         Channel No.             Ship
                                                                         Coast transmit2                Group
                                              transmit1 3
                 106                                                                       216.1375
                 107                                                                       216.1625
                 108                                                                       216.1875
                 109                                                                       216.2125
                 110                                                                       216.2375
                 111                                                                       216.2625
                 112                                                                       216.2875
                 113                                                                       216.3125
                 114                                                                       216.3375
                 115                                                                       216.3625
                 116                                                                       216.3875
                 117                                                                       216.4125
                 118                                                                       216.4375
                 119                                                                       216.4625
                 120                                                                       216.4875
                 121                                                                       216.5125 C
                 122                                                                       216.5375
                 123                                                                       216.5625
                 124                                                                       216.5875
                 125                                                                       216.6125
                 126                                                                       216.6375
                 127                                                                       216.6625
                 128                                                                       216.6875
                 129                                                                       216.7125
                 130                                                                       216.7375
                 131                                                                       216.7625
                 132                                                                       216.7875
                 133                                                                       216.8125
                 134                                                                       216.8375
                 135                                                                       216.8625
                 136                                                                       216.8875
                 137                                                                       216.9125
                 138                                                                       216.9375
                 139                                                                       216.9625
                 140                                                                       216.9875
                 141                                  219.0125                             217.0125 B
                 142                                  219.0375                             217.0375
                 143                                  219.0625                             217.0625

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47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                       47 CFR 80.385(a)(2)
Stations in the Maritime Services

                                                                      Carrier frequency (MHz)
                          Channel No.                 Ship
                                                                              Coast transmit2                Group
                                                   transmit1 3
                 144                                       219.0875                             217.0875
                 145                                       219.1125                             217.1125
                 146                                       219.1375                             217.1375
                 147                                       219.1625                             217.1625
                 148                                       219.1875                             217.1875
                 149                                       219.2125                             217.2125
                 150                                       219.2375                             217.2375
                 151                                       219.2625                             217.2625
                 152                                       219.2875                             217.2875
                 153                                       219.3125                             217.3125
                 154                                       219.3375                             217.3375
                 155                                       219.3625                             217.3625
                 156                                       219.3875                             217.3875
                 157                                       219.4125                             217.4125
                 158                                       219.4375                             217.4375
                 159                                       219.4625                             217.4625
                 160                                       219.4875                             217.4875
                 161                                       219.5125                             217.5125 A
                 162                                       219.5375                             217.5375
                 163                                       219.5625                             217.5625
                 164                                       219.5875                             217.5875
                 165                                       219.6125                             217.6125
                 166                                       219.6375                             217.6375
                 167                                       219.6625                             217.6625
                 168                                       219.6875                             217.6875
                 169                                       219.7125                             217.7125
                 170                                       219.7375                             217.7375
                 171                                       219.7625                             217.7625
                 172                                       219.7875                             217.7875
                 173                                       219.8125                             217.8125
                 174                                       219.8375                             217.8375
                 175                                       219.8625                             217.8625
                 176                                       219.8875                             217.8875
                 177                                       219.9125                             217.9125
                 178                                       219.9375                             217.9375
                 179                                       219.9625                             217.9625
                 180                                       219.9875                             217.9875

                1   Ship transmit frequencies in Groups C and D are not authorized for AMTS use.
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                                                                                                   47 CFR 80.385(a)(2)
Stations in the Maritime Services

                2 Coast station operation on frequencies in Groups C and D are not currently assignable and are
                shared on a secondary basis with the Low Power Radio Service in part 95 of this chapter.
                Frequencies in the band 216.750–217.000 MHz band are available for low power point-to-point
                network control communications by AMTS coast stations under the Low Power Radio Service
                (LPRS). LPRS operations are subject to the conditions that no harmful interference is caused to the
                United States Navy's SPASUR radar system (216.88–217.08 MHz) or to TV reception within the
                Grade B contour of any TV channel 13 station or within the 68 dBu predicted contour of any low
                power TV or TV translator station operating on channel 13.

                3Ship transmit frequencies in Groups A and B are permitted to provide mobile-to-mobile
                communications where the written consent of all affected licensees is obtained.

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                                                                                                        47 CFR 80.385(a)(3)
Stations in the Maritime Services

           (3) As listed in the table in this paragraph (a)(3), AMTS Areas (AMTSAs) are based on, and composed of
               one or more of, the U.S Department of Commerce's 172 Economic Areas (EAs). See 60 FR 13114
               (March 10, 1995). In addition, the Commission shall treat Puerto Rico, the United States Virgin
               Islands, and the Gulf of Mexico as EA-like areas. The Gulf of Mexico EA extends from 12 nautical
               miles off the United States Gulf coast outward into the Gulf. See § 27.6(a)(2) of this chapter and 62
               FR 9636.Maps of the EAs and AMTSAs are available for public inspection through the Federal
               Communications Commission's Reference Information Center. These maps and data are also
               available on the FCC website at www.fcc.gov/oet/info/maps/areas/. These maps and data are also
               available on the FCC Web site at www.fcc.gov/oet/info/maps/areas/. The Group A and B frequency
               pairs listed in the table in paragraph (a)(2) of this section are available for assignment to a single
               licensee in each of the AMTSAs listed in the table in this paragraph (a)(3). In addition to the listed
               EAs listed in the table in this paragraph (a)(3), each AMTSA also includes the adjacent waters under
               the jurisdiction of the United States.

                                                       AMTS areas (AMTSAs)

                      AMTSAs                                                 EAs
                 1 (Northern          1–5, 10 9, 11–23, 25, 42, 46
                 Atlantic)
                 2 (Mid-Atlantic)     24, 26–34, 37, 38, 40, 41, 174
                 3 (Southern          35, 36, 39, 43–45, 47–53, 67–107, 113, 116–120, 122–125, 127, 130–134, 176 6–8,
                 Atlantic)            54–66, 108, 109
                 4 (Mississippi       160–165 147, 166–170
                 River)
                 5 (Great Lakes)      172
                 6 (Southern          171 110–112, 114–115, 121, 126, 128, 129, 135–146, 148–159
                 Pacific)
                 7 (Northern
                 Pacific)
                 8 (Hawaii)
                 9 (Alaska)
                 10 (Mountain)

           (4) Channels in the 219–220 MHz band are also used on a secondary, non-interference basis by amateur
               stations participating in digital message forwarding systems. Amateur stations may not cause
               harmful interference to AMTS operations and must accept any harmful interference from AMTS
               operation. Amateur stations within 80 km (50 miles) of an AMTS coast station must obtain written
               approval from the AMTS licensee prior to operating in the 219–220 MHz band. Amateur stations
               within 640 km (398 miles) of an AMTS coast station must notify the AMTS licensee in writing at
               least 30 days prior to initiation of operations in the 219–220 MHz band. All amateur stations must
               notify the American Radio Relay League in writing at least 30 days prior to initiation of operations in
               the 219–220 MHz band (ARRL, 225 Main St., Newington, CT 06111–1494).

     (b) Subject to the requirements of § 1.924 of this chapter, §§ 80.215(h), and 80.475(a), each AMTS
         geographic area licensee may place stations anywhere within its region without obtaining prior
         Commission approval provided:

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                                                                                                            47 CFR 80.385(b)(1)
Stations in the Maritime Services

           (1) The AMTS geographic area licensee must locate its stations at least 120 kilometers from the
               stations of co-channel site-based AMTS licensees. Shorter separations between such stations will
               be considered by the Commission on a case-by-case basis upon submission of a technical analysis
               indicating that at least 18 dB protection will be provided to a site-based licensee's predicted 38 dBu
               signal level contour. The site-based licensee's predicted 38 dBu signal level contour shall be
               calculated using the F(50, 50) field strength chart for Channels 7–13 in § 73.699 (Fig. 10) of this
               chapter, with a 9 dB correction for antenna height differential. The 18 dB protection to the site-based
               licensee's predicted 38 dBu signal level contour shall be calculated using the F(50, 10) field strength
               chart for Channels 7–13 in § 73.699 (Fig. 10a) of this chapter, with a 9 dB correction factor for
               antenna height differential.

           (2) The locations and/or technical parameters of the transmitters are such that individual coordination
               of the channel assignment(s) with a foreign administration, under applicable international
               agreements and rules in this part, is not required.

           (3) For any construction or alteration that would exceed the requirements of § 17.7 of this chapter,
               licensees must notify the appropriate Regional Office of the Federal Aviation Administration (FAA
               Form 7460–1) and file a request for antenna height clearance and obstruction marking and lighting
               specifications (FCC Form 854) with the FCC, Attn: Information Processing Branch, 1270 Fairfield Rd.,
               Gettysburg, PA 17325–7245.

           (4) The transmitters must not have a significant environmental effect as defined by §§ 1.1301 through
               1.1319 of this chapter.

     (c) Any recovered frequency blocks will revert automatically to the holder of the geographic area license
         within which such frequencies are included. Any frequency blocks recovered where there is no geographic
         area licensee will be retained by the Commission for future licensing.

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 29041, July 11, 1989; 56 FR 3783, Jan. 31, 1991; 57 FR 26780, June 16, 1992;
60 FR 15687, Mar. 27, 1995; 61 FR 46566, Sept. 4, 1996; 67 FR 48565, July 25, 2002; 69 FR 19948, Apr. 15, 2004; 69 FR 44471,
July 26, 2004; 73 FR 4486, Jan. 25, 2008; 75 FR 10692, Mar. 9, 2010 ; 85 FR 64409, Oct. 13, 2020; 88 FR 21449, Apr. 10, 2023]

                                                 ALASKA FIXED STATIONS

§ 80.387 Frequencies for Alaska fixed stations.
     (a) The carrier frequencies listed in (b) of this section are assignable for point-to-point simplex
         radiotelephone communications between private fixed stations in Alaska. The frequency pairs listed in
         paragraph (d) of this section are assignable for point-to-point duplex radiotelephone communications
         between private and public fixed stations in Alaska. Fixed stations in Alaska authorized to share carrier
         frequencies with the maritime mobile service must always give priority on such frequencies to maritime
         distress, urgency and safety communications.

     (b) Alaska private-fixed station frequencies:

                                               Carrier Frequencies (kHz)

           1643.04                                                   2430.0                                     2773.0
           1646.04                                                   2447.0                                     3164.5

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                                                                                                               47 CFR 80.387(c)
Stations in the Maritime Services

           1649.04                                                   2450.0                                        3183.0
                    4
           1652.0                                                    2463.0                                        3196.0
                    4
           1657.0                                                    2466.0                                        3201.0
                    14
           1660.0                                                    2471.0                                        3258.0
           1705.04                                                   2479.0                                        3261.0
           1709.0                                                    2482.0                                        3303.0
           1712.0                                                    2506.0                                        3365.0
           2003.0                                                    2509.0                                        4035.0
           2006.0                                                    2512.0                                        5164.5
                                                                                                               3
           2115.0                                                    2535.0                                        5167.5
           2118.0                                                    2538.0                                        5204.5
                                                                                                               2
           2253.0                                                    2563.0                                        6948.5
                                                                                                               2
           2400.0                                                    2566.0                                        7368.5
           2419.0                                                    2601.0                                        8067.0
           2422.0                                                    2616.0                                        8070.0
                                                                                                           2
           2427.0                                                    2691.0                                    11437.0
                                                                                                         25    11601.5

           1   Use of 1660.0 kHz must be coordinated to protect radiolocation on adjacent channels.

           2   Peak envelope power must not exceed 1 kW for radiotelephony. Teleprinter use is authorized.

           3 The frequency 5167.5 kHz is available for emergency communications in Alaska. Peak envelope
           power of stations operating on this frequency must not exceed 150 watts. When a station in Alaska
           is authorized to use 5167.5 kHz, such station may also use this frequency for calling and listening
           for the purpose of establishing communications.

           4   Use of these frequencies is on a secondary basis to Region 2 broadcasting.

           5 After April 1, 2007, use of the frequency 11601.5 kHz shall be on the condition that harmful
           interference is not caused to HF broadcasting.

     (c) Use of the frequencies in paragraph (b) of this section must meet the following conditions:

           (1) Communications between private coast and private fixed stations are prohibited; and

           (2) Station licensees must not charge for third party communication services between their station and
               any other private fixed station.

     (d) The following carrier frequency pairs are assignable for point-to-point communications between public
         fixed and private fixed stations:

                    Public fixed station frequencies (kHz)             Private fixed Station frequencies (kHz)
                                                        1
                                                            2312.0                                                 2632.0
                                                            2604.0                                                 2256.0

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                                                                                                               47 CFR 80.387(e)
Stations in the Maritime Services

                    Public fixed station frequencies (kHz)              Private fixed Station frequencies (kHz)
                                                                                                                3
                                                            2781.0                                                  2474.0
                                                            2784.0                                                  2694.0
                                                            3167.5                                                  3354.0
                                                            3180.0                                                  2776.0
                                                            3241.0                                                  3357.0
                                                            3362.0                                                  3238.0
                                                        2
                                                            4791.5                                                  5207.5
                                                            5370.0                                   4   5134.5,4   5137.5

           1 This frequency is assignable on a primary basis to public coast stations and on a secondary basis
           to public fixed stations.

           2   Teleprinter use is authorized.

           3
               Peak envelope power must not exceed 1 kW.

           4
             Licensees must cease all communications on 5134.5 kHz and 5137.5 kHz when notified by the
           State of Alaska of an emergency or disaster. Licensees may resume communication on these
           frequencies when notified by the State of Alaska that the disaster or harmful interference has
           ended.

     (e) The public fixed station frequencies are assignable to common carriers.

     (f) The private fixed station frequencies described in paragraph (d) of this section are assignable to private
         entities located in areas where common carrier facilities are not available. Private fixed stations operating
         on the frequencies in paragraph (d) of this section, must communicate with public fixed stations only.
         Private fixed stations are permitted to provide third party communications between their station and the
         public fixed stations. A charge for such service is prohibited.

     (g) U.S. Government frequencies will be authorized if the Commission determines that the assignment is in
         the public interest.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987; 56 FR 34030, July 25, 1991; 68 FR 25540, May 13, 2003]

                                                MARITIME SUPPORT STATIONS

§ 80.389 Frequencies for maritime support stations.
     (a) Marine receiver test. Maritime support stations will be authorized to conduct receiver tests on the ship
         station frequencies of the channels assigned to the associated public coast station.

     (b) Shore radar and radiolocation tests. The following frequency bands are available for assignment to
         demonstrate radar and radiolocation equipment. The use of frequencies within these bands must not
         cause harmful interference to the radionavigation service and the Government radiolocation service:
         2450–2500 MHz, 2900–3100 MHz, 5460–5650 MHz, 9300–9500 MHz, 14.0–14.05 GHz.

Developmental Stations
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                                                                                                        47 CFR 80.393
Stations in the Maritime Services

                                                   AIS STATIONS

§ 80.393 Frequencies for AIS stations.
Automatic Identification Systems (AIS) are a maritime broadcast service. The simplex channels at 156.775 MHz
(AIS 3), 156.825 MHz (AIS 4), 161.975 MHz (AIS 1), and 162.025 MHz (AIS 2), each with a 25 kHz bandwidth, may
be authorized only for AIS. In accordance with the Maritime Transportation Security Act, the United States Coast
Guard regulates AIS carriage requirements for non-Federal Government ships. These requirements are codified at
33 CFR 164.46, 401.20.

[82 FR 27213, June 14, 2017]

Subpart I—Station Documents
§ 80.401 Station documents requirement.
Licensees of radio stations are required to have current station documents as indicated in the following table:

47 CFR 80.401 (enhanced display)                                                                       page 175 of 268
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                                                                                                          47 CFR 80.401
Stations in the Maritime Services

Notes: 1. The expired station license must be retained in the station records until the first Commission inspection
after the expiration date.

2. Alternatively, a list of coast stations maintained by the licensee with which communications are likely to be
conducted, showing watch-keeping hours, frequencies and charges, is authorized.

3. Required only if station provides a service to ocean-going vessels.

47 CFR 80.401 (enhanced display)                                                                        page 176 of 268
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                                                                                                                 47 CFR 80.403
Stations in the Maritime Services

4. Certification of a Great Lakes inspection may be made by either a log entry or issuance of a Great Lakes
certificate. The ship's radiotelephone logs containing entries certifying that a Great Lakes safety inspection has
been conducted must be retained on board and available for inspection until the next radio inspection.

5. The requirements for having the GMDSS Master Plan, NGA Publication 117, Admiralty List of Radio Signals or
IMO Circ. 7 are satisfied by having any one of those four documents.

[88 FR 77220, Nov. 9, 2023]

§ 80.403 Availability of documents.
Station documents must be readily available to the licensed operator(s) on duty during the hours of service of the
station and to authorized Commission employees upon request.

§ 80.405 Station license.
     (a) Requirement. Except as provided in § 80.13(c), stations must have an authorization granted by the Federal
         Communications Commission.

     (b) Application. Application for authorizations in the maritime services must be submitted on the prescribed
         forms in accordance with subpart B of this part.

     (c) Posting.

           (1) The current station authorization for a station other than a public coast station, or a clearly legible
               copy, must be posted at the principal control point of each station. If a copy is posted, it must
               indicate the location of the original. When the station license cannot be posted as in the case of a
               marine utility station operating at temporary unspecified locations or the ship or recreational boat
               does not have an enclosed wheelhouse, it must be kept where it will be readily available for
               inspection. The licensee of a station on board a ship subject to Part II or III or Title III of the
               Communications Act or the Safety Convention must retain the most recently expired ship station
               license in the station records until the first Commission inspection after the expiration date.

           (2) Public coast stations authorized under this part must make available either a clearly legible copy of
               the authorization for each station at the principal control point of the station or an address or
               location where the current authorization may be found and a telephone number of that
               authorization's representative.

[51 FR 31213, Sept. 2, 1986, as amended at 62 FR 40307, July 28, 1997; 68 FR 46972, Aug. 7, 2003; 69 FR 64676, Nov. 8, 2004]

§ 80.407 Operator authorization.
This section contains information and rules pertinent to the application for and posting of radio operator
authorizations. Rules applicable to radio operator requirements are contained in subpart D of this part and other
rules pertinent to commercial radio operators are contained in part 13 of this chapter.

     (a) Application. Detailed information about application forms, filing procedures, and places to file applications
         for radio operator authorizations is contained in the bulletin “Commercial Radio Operator Licenses and
         Permits.” This bulletin is available from any Commission District Office or from the FCC, Washington, DC
         20554.

47 CFR 80.407(a) (enhanced display)                                                                             page 177 of 268
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                                                                                                           47 CFR 80.407(b)
Stations in the Maritime Services

     (b) Posting. When a Commission-authorized operator is required, the original authorization of each operator
         must be posted at the principal control point of the station. In lieu of posting, an operator who holds a
         restricted radiotelephone operator permit or a higher class operator license may have the operator
         authorization or a photocopy thereof available for inspection upon request by authorized Commission
         employees when operating the following:

           (1) A voluntary station;

           (2) Any class of ship station when the operator is on board solely to service the radio equipment; or

           (3) A portable station.

§ 80.409 Station logs.
     (a) General requirements. Logs must be established and properly maintained as follows:

           (1) The log must be kept in an orderly manner. The log may be kept electronically or in writing. The
               required information for the particular class or category of station must be readily available. Key
               letters or abbreviations may be used if their proper meaning or explanation is contained elsewhere in
               the same log.

           (2) Erasures, obliterations, or willful destruction of written logs, or deletions of data or willful destruction
               of computer files or computer hardware containing electronic logs, is prohibited during the retention
               period. Corrections may be made only by the person originating the entry by striking out the error,
               initialing the correction and indicating the date of correction. With respect to electronic logs, striking
               out the error is to be accomplished using a strike-through formatting effect or a similar software
               function, and the correction is to be acknowledged through a dated electronic signature at the
               location of the strike-through.

           (3) Ship station logs must identify the vessel name, country of registry, and official number of the vessel.

           (4) The station licensee and the radio operator in charge of the station are responsible for the
               maintenance of station logs.

     (b) Availability and retention. Station logs must be made available to authorized Commission employees upon
         request and retained as follows:

           (1) Logs must be retained by the licensee for a period of two years from the date of entry, and, when
               applicable, for such additional periods as required by the following paragraphs:

                 (i)   Logs relating to a distress situation or disaster must be retained for three years from the date of
                       entry.

                (ii) If the Commission has notified the licensee of an investigation, the related logs must be
                     retained until the licensee is specifically authorized in writing to destroy them.

                (iii) Logs relating to any claim or complaint of which the station licensee has notice must be
                      retained until the claim or complaint has been satisfied or barred by statute limiting the time for
                      filing suits upon such claims.

           (2) Logs containing entries required by paragraph (c) of this section must be kept either at the principal
               control point of the station or electronically filed at the station licensee's primary office or available
               to the Commission via secured access to the licensee's Internet web site. Logs containing entries
               required by paragraphs (e) and (f) of this section must be kept at the principal radiotelephone
               operating location while the vessel is being navigated. All entries in their original form must be
47 CFR 80.409(b)(2) (enhanced display)                                                                      page 178 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                      47 CFR 80.409(b)(3)
Stations in the Maritime Services

                retained on board the vessel for at least 30 days from the date of entry. Additionally, logs required by
                paragraph (f) of this section must be retained on board the vessel for a period of 2 years from the
                date of the last inspection of the ship radio station.

           (3) Ship radiotelegraph logs must be kept in the principal radiotelegraph operating room during the
               voyage.

     (c) Public coast station logs. Public coast stations must maintain a log, whether by means of written or
         automatic logging or a combination thereof. The log must contain the following information:

           (1) “ON DUTY” must be entered by the operator beginning a duty period, followed in the case of a written
               log by the operator's signature. “OFF DUTY” must be entered by the operator being relieved of or
               terminating duty, followed in the case of a written log by the operator's signature.

           (2) The date and time of making an entry must be shown opposite the entry.

           (3) Failure of equipment to operate as required and incidents tending to unduly delay communication
               must be entered.

           (4) All measurements of the transmitter frequency(ies) must be entered with a statement of any
               corrective action taken.

           (5) Entries must be made giving details of all work performed which may affect the proper operation of
               the station. The entry must be made, dated and in the case of a written log signed by the operator
               who supervised or performed the work and, unless the operator is regularly employed on a full-time
               basis at the station, must also include the mailing address, class, serial number, and expiration date
               of the operator license.

           (6) Entries must be made about the operation of the antenna tower lights when the radio station has an
               antenna structure requiring illumination by part 17 of this chapter.

           (7) All distress or safety related calls transmitted or received must be entered, together with the
               frequency used and the position of any vessel in need of assistance.

     (d) Ship radiotelegraph logs. Logs of ship stations which are compulsorily equipped for radiotelegraphy and
         operating in the band 90 to 535 kHz must contain log entries as follows:

           (1) The date and time of each occurrence or incident required to be entered in the log must be shown
               opposite the entry and the time must be expressed in Coordinated Universal Time (UTC).

           (2) “ON WATCH” must be entered by the operator beginning a watch, followed by the operator's
               signature for stations maintaining written logs. “OFF WATCH” must be entered by the operator being
               relieved or terminating a watch, followed by the operator's signature for stations maintaining written
               logs. All log entries must be completed by the end of each watch.

           (3) During the watch, all calls and replies to and from the station must be entered to include the time,
               frequencies, and call letters of the station communicated with or heard. Also, any messages
               exchanged must be entered to include the time, frequency, and call letters of the station(s)
               communicated with or heard.

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                                                                                                     47 CFR 80.409(d)(4)
Stations in the Maritime Services

           (4) All distress calls, automatic-alarm signals, urgency and safety signals made or intercepted, the
               complete text, if possible, or distress messages and distress communications, and any incidents or
               occurrences which may appear to be of importance to safety of life or property at sea, must be
               entered, together with the time of such observation or occurrence and the position of the ship or
               other mobile unit in need of assistance.

           (5) The position of the ship at least once per day.

           (6) A daily entry must be made comparing the radio station clock with standard time, including errors
               observed and corrections made. For this purpose, authentic radio time signals received from land or
               fixed stations will be acceptable as standard time.

           (7) All test transmissions must be entered, including the time of the transmissions and the approximate
               geographical location of the vessel.

           (8) Any failure of equipment to operate as required and any incidents tending to unduly delay
               communications must be entered.

     (e) Ship radiotelephone logs. Logs of ship stations which are compulsorily equipped for radiotelephony must
         contain the following applicable log entries and the time of their occurrence:

           (1) A summary of all distress and urgency communications affecting the station's own ship, all distress
               alerts relayed by the station's own ship, and all distress call acknowledgements and other
               communications received from search and rescue authorities.

           (2) A summary of safety communications on other than VHF channels affecting the station's own ship.

           (3) The time of any inadvertent transmissions of distress, urgency and safety signals including the time
               and method of cancellation.

           (4) An entry that pre-departure equipment checks were satisfactory and that required publications are
               on hand. Daily entries of satisfactory tests to ensure the continued proper functioning of GMDSS
               equipment shall be made.

           (5) A daily statement about the condition of the required radiotelephone equipment, as determined by
               either normal communication or test communication;

           (6) A weekly entry that:

                 (i)   The proper functioning of digital selective calling (DSC) equipment has been verified by actual
                       communications or a test call;

                (ii) The portable survival craft radio gear and radar transponders have been tested; and

                (iii) The EPIRBs have been inspected.

           (7) An entry at least once every thirty days that the batteries or other reserve power sources have been
               checked and are functioning properly.

           (8) Results of required equipment tests, including specific gravity of lead-acid storage batteries and
               voltage reading of other types of batteries provided as a part of the compulsory installation;

           (9) Results of inspections and tests of compulsorily fitted lifeboat radio equipment;

          (10) When the master is notified about improperly operating radiotelephone equipment.

47 CFR 80.409(e)(10) (enhanced display)                                                                  page 180 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                     47 CFR 80.409(e)(11)
Stations in the Maritime Services

          (11) At the beginning of each watch, the Officer of the Navigational Watch, or GMDSS Operator on watch,
               if one is provided, shall ensure that the navigation receiver is functioning properly and is
               interconnected to all GMDSS alerting devices which do not have integral navigation receivers,
               including: VHF DSC, MF DSC, satellite EPIRB and HF DSC or INMARSAT SES. On a ship without
               integral or directly connected navigation receiver input to GMDSS equipment, the Officer of the
               Navigational Watch, or GMDSS Operator on watch, shall update the embedded position in each
               equipment. An appropriate log entry of these actions shall be made.

          (12) An entry describing any malfunctioning GMDSS equipment and another entry when the equipment is
               restored to normal operation.

          (13) A GMDSS radio log entry shall be made whenever GMDSS equipment is exchanged or replaced
               (ensuring that ship MMSI identifiers are properly updated in the replacement equipment), when
               major repairs to GMDSS equipment are accomplished, and when annual GMDSS inspections are
               conducted.

     (f) Applicable radiotelephone log entries. The log entries listed in paragraph (e) of this section are applicable
         as follows (vessels subject to the Global Maritime Distress and Safety System (GMDSS) should also refer
         to subpart W of this Part for additional guidance on maintenance of station logs):

           (1) Radiotelephony stations subject to part II or III of title III of the Communications Act and/or the
               Safety Convention must record entries indicated by paragraphs (e)(1) through (13) of this section.
               Additionally, the radiotelephone log must provide an easily identifiable, separate section relating to
               the required inspection of the ship's radio station. Entries must be made in this section giving at
               least the following information.

                 (i)   For ships that pass the inspection:

                       (A) The date the inspection was conducted.

                       (B) The date by which the next inspection needs to completed.

                       (C) The inspector's printed name, address and class of FCC license (including the serial
                           number).

                       (D) The results of the inspection, including any repairs made.

                       (E) The inspector's signed and dated certification that the vessel meets the requirements of
                           the Communications Act and, if applicable, the Safety Convention and the Bridge-to-Bridge
                           Act contained in subparts R, S, U, or W of this part and has successfully passed the
                           inspection.

                       (F) The vessel owner, operator, or ship's master's certification that the inspection was
                           satisfactory.

                 (ii) For ships that fail the inspection:

                       (A) The date the inspection was conducted.

                       (B) The inspector's printed name, address and class of FCC license (including the serial
                           number).

                       (C) The reason that the ship did not pass the inspection.

47 CFR 80.409(f)(1)(ii)(C) (enhanced display)                                                             page 181 of 268
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                                                                                                      47 CFR 80.409(f)(1)(ii)(D)
Stations in the Maritime Services

                       (D) The date and time that the ship's owner, operator or master was notified that the ship
                           failed the inspection.

           (2) Radiotelephony stations subject to subpart T of this part and the Bridge-to-Bridge Act must record
               entries indicated by paragraphs (e)(1), (3), (5), (6), (7), (8), (10), (11), and (13) of this section.
               Additionally, the radiotelephone log must provide an easily identifiable, separate section relating to
               the required inspection of the ship's radio station. Entries must be made in this section giving at
               least the following information:

                 (i)   The date the inspection was conducted;

                (ii) The date by which the next inspection needs to be completed;

                (iii) The inspector's printed name, address and class of FCC license (including the serial number);

                (iv) The results of the inspection, including any repairs made;

                (v) The inspector's signed and dated certification that the vessel meets the requirements for
                    certain vessels operating in the Great Lakes and of the Bridge-to-Bridge Act contained in
                    subparts T and U of this part and has successfully passed the inspection; and

                (vi) The vessel owner, operator, or ship's master's certification that the inspection was satisfactory.

           (3) Radiotelephony stations subject to the Bridge-to-Bridge Act must record entries indicated by
               paragraphs (e)(1), (3), (5) (6), (7), (10), and (11) of this section.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987; 54 FR 40059, Sept. 29, 1989; 61 FR 25807, May 23,
1996; 63 FR 29659, June 1, 1998; 68 FR 46972, Aug. 7, 2003; 69 FR 64676, Nov. 8, 2004; 73 FR 4486, Jan. 25, 2008; 78 FR 23156,
Apr. 18, 2013; 88 FR 77221, Nov. 9, 2023]

§ 80.411 Vessel certification or exemption.
     (a) Application. The application procedures for inspection and certification and for exemptions are contained
         in § 80.59.

     (b) Posting. Part II or III of Title III of the Communications Act, Safety Convention, and Great Lakes certificates
         or exemptions must be posted in a prominent, accessible place in the ship. Ships subject to subpart T of
         this part may, in lieu of a posted certificate, certify compliance in the station log required by § 80.409(f).

[51 FR 31213, Sept. 2, 1986, as amended at 61 FR 25807, May 23, 1996; 88 FR 77222, Nov. 9, 2023]

§ 80.413 On-board station equipment records.
     (a) The licensee of an on-board station must keep equipment records which show:

           (1) The ship name and identification of the on-board station;

           (2) The number and type of repeater and mobile units used on-board the vessel; and

           (3) The date and type of equipment which is added or removed from the on-board station.

     (b) [Reserved]

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                                                                                                           47 CFR 80.415
Stations in the Maritime Services

§ 80.415 Publications.
     (a) The following publications listed in the table contained in § 80.401 are published by the International
         Telecommunications Union (ITU):

           (1) Manual for Use of the Maritime Mobile and Maritime Mobile-Satellite Services.

           (2) List IV—List of Coast Stations.

           (3) List V—List of Ship Stations.

           (4) List VI—List of Radiodetermination and Special Services Stations.

           (5) List VII A—Alphabetical List of Call Signs of Stations Used by the Maritime Mobile Service, Ship
               Station Selective Call Numbers or Signals and Coast Station Identification Numbers or Signals.
               These publications may be purchased from: International Telecommunication Union, General
               Secretariat-Sales Section, Place des Nations, CH–1211 Geneva 20, Switzerland

     (b) The following publications listed in the table contained in § 80.401 are available as follows:

           (1) IMO GMDSS Master Plan may be purchased from International Maritime Organization (IMO),
               Publications, 4 Albert Embankment, London SE1 7 SR, United Kingdom; telephone 011 44 71 735
               7611.

           (2) U.S. NGA Publication 117 may be purchased from Superintendent of Documents, P.O. Box 371954,
               Pittsburgh, PA 15250–7954, telephone 202–512–1800.

           (3) The Admiralty List of Radio Signals, Volume 5—Global Maritime Distress and Safety System, may be
               purchased from UK Hydrographic Office, Admiralty Way, Tauton, Somerset TA1 2DN, United Kingdom,
               telephone + 44 (0)1823 337900 x3333.

[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46972, Aug. 7, 2003; 78 FR 23157, Apr. 18, 2013]

§ 80.417 FCC Rules and Regulations.
The Commission's printed publications are described in subpart C of part 0 of this chapter. These publications may
be purchased from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. The
Commission does not furnish copies of these publications but will furnish a price list, Information Services and
Publications—Bulletin No. 1, upon request. Requests for copies of this list may be directed to the Consumer
Information Bureau, Consumer Information Network Division. Information bulletins and fact sheets containing
information about communications issues and the Federal Communications Commission are also available on the
Commission's web site at www.fcc.gov or ftp.fcc.gov.

[68 FR 46972, Aug. 7, 2003]

Subpart J—Public Coast Stations

                                                    STATIONS ON LAND

§ 80.451 Supplemental eligibility requirements.
A public coast station license may be granted to any person meeting the citizenship provisions of § 80.15(b).

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                                                                                                          47 CFR 80.453
Stations in the Maritime Services

§ 80.453 Scope of communications.
Public coast stations provide ship/shore radiotelephone and radiotelegraph services.

     (a) Public coast stations are authorized to communicate:

           (1) With any ship or aircraft station operating in the maritime mobile service, for the transmission or
               reception of safety communication;

           (2) With any land station to exchange safety communications to or from a ship or aircraft station;

           (3) With Government and non-Government ship and aircraft stations to exchange public
               correspondence;

           (4) With units on land in accordance with § 80.123.

     (b) Public coast stations are authorized to communicate with a designated station at a remote fixed location
         where other communication facilities are not available.

     (c) Public coast stations are authorized to transmit meteorological and navigational information of benefit to
         mariners.

     (d) Each public coast telegraphy station is authorized to communicate with other public coast telegraphy
         stations to exchange message traffic destined to or originated at mobile stations:

           (1) To exchange operating signals, brief service messages or safety communication;

           (2) To exchange message traffic destined for a mobile station when the coast station initially concerned
               is unable to communicate directly with the mobile station;

           (3) In the Great Lakes region, to exchange message traffic originated at a mobile station when the use of
               available point-to-point communication facilities would delay the delivery of such message traffic;

           (4) Utilization of radiotelegraphy must not incur additional charges or replace available point-to-point
               communication facilities;

           (5) Only authorized working frequencies within the band 415 kHz to 5000 kHz must be employed for
               communications between coast stations;

           (6) Harmful interference must not be caused to communication between mobile stations and coast
               stations or between mobile stations.

[51 FR 31213, Sept. 2, 1986, as amended at 62 FR 40307, July 28, 1997]

                                                   USE OF TELEGRAPHY

§ 80.455 Assignment and use of frequencies for manual Morse code telegraphy.
     (a) The frequencies designated in §§ 80.355 and 80.357 may be licensed for use by coast stations employing
         telegraphy.

     (b) [Reserved]

§ 80.459 Digital selective calling.
Subpart H of this part lists frequencies assignable for DSC.
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                                                                                                          47 CFR 80.461
Stations in the Maritime Services

§ 80.461 Narrow-band direct-printing.
Subpart H of this part lists the frequencies assignable to public coast stations for operations with ship stations.
Operating procedures are listed in subpart C of this part.

                                                   USE OF TELEPHONY

§ 80.465 Assignment and use of frequencies for telephony.
Subpart H of this part lists the frequencies available for assignment to public coast stations for telephony
operations.

§ 80.467 Duplication of VHF service.
No duplication of service areas as determined by subpart P of this part will be permitted by public coast stations
operating on the same VHF public correspondence channel. Within the service area of a station, the ratio of desired
to undesired co-channel signal strengths on public correspondence channels must be at least 12dB.

§ 80.469 Maritime mobile repeater stations in Alaska.
     (a) Maritime mobile repeater stations are authorized to extend the range of communication between a VHF
         public coast station located in Alaska and ship stations.

     (b) On a secondary basis, maritime mobile repeater stations may be authorized to extend the range of a
         private coast station:

           (1) In an area where VHF common carrier service is not available;

           (2) A maritime mobile repeater station license expires 60 days after a public coast station in the area
               begins service.

     (c) Maritime mobile repeater stations may not be authorized in cases where operational fixed frequencies can
         be employed.

     (d) The provisions relating to duplication of service described in subpart P apply to maritime mobile repeater
         stations.

     (e) The frequencies 157.275 and 161.875 MHz are assignable to maritime mobile repeater stations.

     (f) Each maritime mobile repeater station must:

           (1) Deactivate automatically within 5 seconds after the signals controlling the station cease; and

           (2) During periods when it is not controlled from a manned control point, deactivate automatically not
               more than 20 minutes after its activation by a mobile unit.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 68956, Dec. 14, 1998]

§ 80.471 Discontinuance or impairment of service.
Except as specified in § 20.15(b)(3) of this chapter with respect to commercial mobile radio service providers, a
public coast station must not discontinue or impair service unless authorized to do so by the Commission.

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                                                                                                                 47 CFR 80.475
Stations in the Maritime Services

[69 FR 64676, Nov. 8, 2004]

                                                   AUTOMATED SYSTEMS

§ 80.475 Scope of service of the Automated Maritime Telecommunications System (AMTS).
     (a) A separate Form 601 is not required for each coast station in a system. However, except as provided in §
         80.385(b) and paragraph (b) of this section, the applicant must provide the technical characteristics for
         each proposed coast station, including transmitter type, operating frequencies, emissions, transmitter
         output power, antenna arrangement, and location.

           (1) Applicants proposing to locate a coast station transmitter within 169 kilometers (105 miles) of a
               channel 13 TV station or within 129 kilometers (80 miles) of a channel 10 TV station or with an
               antenna height greater than 61 meters (200 feet), must submit an engineering study clearly showing
               the means of avoiding interference with television reception within the grade B contour, see §
               80.215(h) of this chapter, unless the proposed station's predicted interference contour is fully
               encompassed by the composite interference contour of the applicant's existing system, or the
               proposed station's predicted interference contour extends the system's composite interference
               contour over water only (disregarding uninhabited islands).

           (2) Additionally, applicants required to submit the above specified must give written notice of the filing
               of such applications(s) to the television stations which may be affected. A list of the notified
               television stations must be submitted with the subject applications.

     (b) Coast stations for which the above specified need not be submitted because the proposed station's
         predicted interference contour is fully encompassed by the composite interference contour of the
         applicant's existing system or the proposed station's predicted interference contour extends the system's
         composite interference contour over water only (disregarding uninhabited islands) must, at least 15 days
         before the station is put into operation, give written notice to the television stations which may be
         affected of the proposed station's technical characteristics, the date it will be put into operation, and the
         licensee's representative (name and phone number) to contact in the event a television station
         experiences interference. No prior FCC authorization is required to construct and operate such a station,
         but, at the time the station is added, the AMTS licensee must make a record of the technical and
         administrative information concerning the station and, upon request, supply such information to the FCC.
         In addition, when the station is added, the AMTS licensee must send notification of the station's location
         to the American Radio Relay League, Inc., 225 Main Street, Newington, CT 06111–1494, and Interactive
         Systems, Inc., Suite 1103, 1601 North Kent Street, Arlington, VA 22209.

     (c) An AMTS system may provide private mobile radio service in addition to or instead of public
         correspondence service. However, such communications may be provided only to stations whose
         licensees make cooperative arrangements with the AMTS coast station licensees. In emergency and
         distress situations, services must be provided to ship stations without prior arrangements.

     (d) AMTS systems providing private mobile radio service instead of, or in addition to, public correspondence
         service are not required to be interconnected to the public switched network when providing such private
         mobile radio service. AMTS systems providing public correspondence service must be interconnected to
         the public switched network, but the licensee may also offer non-interconnected services.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987; 56 FR 3783, Jan. 31, 1991; 65 FR 77826, Dec. 13, 2000;
67 FR 48567, July 25, 2002; 69 FR 19948, Apr. 15, 2004; 72 FR 31194, June 6, 2007]

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                                                                                                                 47 CFR 80.477
Stations in the Maritime Services

§ 80.477 AMTS points of communication.
     (a) AMTS coast stations may communicate with fixed platform stations located in the offshore waters of the
         Gulf of Mexico, with ship stations, and with land units in accordance with § 80.123.

     (b) AMTS licensees in the offshore waters of the Gulf of Mexico may use AMTS coast and ship station
         frequencies on a secondary basis for fixed service communications to support offshore AMTS
         operations.

     (c) AMTS service may be provided to any vessel within communication service range of an AMTS station
         even though the vessel may not be operating within the confines of a served waterway.

     (d) AMTS licensees may use AMTS coast and ship frequencies on a secondary basis for fixed service
         communications to support AMTS deployment in remote fixed locations at which other communications
         facilities are not available.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987; 62 FR 40307, July 28, 1997; 65 FR 77827, Dec. 13, 2000]

§ 80.479 Assignment and use of frequencies for AMTS.
     (a) The frequencies assignable to AMTS stations are listed in subpart H of this subpart.

     (b) The transmissions from a station of an AMTS geographic area licensee may not exceed a predicted 38
         dBu field strength at the geographic area border, unless all affected co-channel geographic area licensees
         agree to the higher field strength. The predicted 38 dBu field strength is calculated using the F(50, 50)
         field strength chart for Channels 7 through 13 in § 73.699 (Fig. 10) of this chapter, with a 9 dB correction
         factor for antenna height differential. Geographic area licensees must coordinate to minimize interference
         at or near their geographic area borders, and must cooperate to resolve any instances of interference in
         accordance with the provisions of § 80.70(a).

     (c) AMTS frequencies may be used for mobile-to-mobile communications if written consent is obtained from
         all affected licensees.

[67 FR 48567, July 25, 2002, as amended at 72 FR 31194, June 6, 2007]

§ 80.481 Alternative technical parameters for AMTS transmitters.
In lieu of the technical parameters set forth in this part, AMTS transmitters may utilize any modulation or
channelization scheme so long as emissions are attenuated in accordance with § 80.211 at the band edges of each
station's assigned channel group or groups.

[65 FR 77827, Dec. 13, 2000]

Subpart K—Private Coast Stations and Marine Utility Stations
§ 80.501 Supplemental eligibility requirements.
     (a) A private coast station or a marine utility station may be granted only to a person who is:

           (1) Regularly engaged in the operation, docking, direction, construction, repair, servicing or management
               of one or more commercial transport vessels or United States, state or local government vessels; or
               is

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                                                                                                       47 CFR 80.501(a)(2)
Stations in the Maritime Services

           (2) Responsible for the operation, control, maintenance or development of a harbor, port or waterway
               used by commercial transport vessels; or is

           (3) Engaged in furnishing a ship arrival and departure service, and will employ the station only for the
               purpose of obtaining the information essential to that service; or is

           (4) A corporation proposing to furnish a nonprofit radio communication service to its parent corporation,
               to another subsidiary of the same parent, or to its own subsidiary where the party to be served
               performs any of the eligibility activities described in this section; or is

           (5) A nonprofit corporation or association, organized to furnish a maritime mobile service solely to
               persons who operate one or more commercial transport vessels; or is

           (6) Responsible for the operation of bridges, structures or other installations that area part of, or directly
               related to, a harbor, port or waterway when the operation of such facilities requires radio
               communications with vessels for safety or navigation; or is

           (7) A person controlling public moorage facilities; or is

           (8) A person servicing or supplying vessels other than commercial transport vessels; or is

           (9) An organized yacht club with moorage facilities; or is

          (10) A nonprofit organization providing noncommercial communications to vessels other than
               commercial transport vessels.

     (b) Each application for station authorization for a private coast station or a marine utility station must be
         accompanied by a statement indicating eligibility under paragraph (a) of this section.

§ 80.503 Cooperative use of facilities.
     (a) A person engaged in the operation of one or more commercial transport vessels or government vessels
         may receive maritime mobile service from a private coast station or a marine utility station on shore even
         though not the licensee of the private coast station or the marine utility station. Restrictions on
         cooperative arrangements are as follows:

           (1) Foreign persons must be the licensees of the radio stations installed on board their vessels.

           (2) The licensee of a private coast station or marine utility station on shore may install ship radio
               stations on board United States commercial transport vessels of other persons. In each case these
               persons must enter into a written agreement verifying that the ship station licensee has the sole
               right of control of the ship stations, that the vessel operators must use the ship stations subject to
               the orders and instructions of the coast station or marine utility station on shore, and that the ship
               station licensee will have sufficient control of the ship station to enable it to carry out its
               responsibilities under the ship station license.

     (b) Cooperative arrangements are limited concerning cost and charges as follows:

           (1) The arrangement must be established on a non-profit, cost-sharing basis by written contract. A copy
               of the contract must be kept with the station records and made available for inspection by
               Commission representatives.

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                                                                                                   47 CFR 80.503(b)(2)
Stations in the Maritime Services

           (2) Contributions to capital and operating expenses are to be prorated on an equitable basis among all
               persons who are parties to the cooperative arrangement. Records which reflect the cost of the
               service and its nonprofit, cost-sharing nature must be maintained by the licensee of the station and
               made available for inspection by Commission representatives.

§ 80.505 Points of communication.
     (a) Private coast stations and marine utility stations are authorized to communicate:

           (1) With any mobile station in the maritime mobile service for the exchange of safety communications;

           (2) With any land station for the purpose of aiding the exchange of safety communications;

           (3) With ship stations.

     (b) Private coast stations of the same licensee may be authorized to communicate on a secondary basis
         between themselves if:

           (1) The communications are confined exclusively to those for which authority has been granted the
               coast station, and concerns ships with which one or both of the coast stations are authorized to
               communicate; and

           (2) Other satisfactory point-to-point communication facilities between the coast stations are
               unavailable; and

           (3) Coast stations which communicate with each other are not more than 160 km (100 miles) apart; and

           (4) Harmful interference is not cause to mobile stations.

     (c) A private coast station and associated marine utility stations serving and located on a shipyard regularly
         engaged in construction or repair of commercial transport vessels or Government vessels are authorize to
         communicate between stations when they are licensed to the same entity and communications are
         limited to serving the needs of ships on a non-interference basis to other stations in the maritime mobile
         service. A separate showing is required.

§ 80.507 Scope of service.
     (a) A private coast station or marine utility station using telephony serves the operational and business needs
         of ships including the transmission of safety communication.

     (b) In areas where environmental communications are provided by U.S. Government stations or by public
         coast stations, private coast stations and marine utility stations on shore must not duplicate that service.
         In other areas, private coast stations and marine utility stations on shore may transmit weather and
         hydrographic information required for the ships with which they normally communicate. Private coast
         stations may provide environmental communication service in areas where adequate service is not
         available.

     (c) Each marine utility station on shore must be operated as a private coast station except that it may be
         operated at temporary unspecified locations. Marine utility stations on ships are operated as ship
         stations.

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                                                                                                        47 CFR 80.507(d)
Stations in the Maritime Services

     (d) Each private coast station is authorized by rule to use hand-held marine radios in the vicinity of the
         station's fixed transmitter site on those frequencies assigned to the private coast station. Hand-held
         communications must conform to those normally permitted under a marine utility station authorization
         and must be limited to contact with the associated private coast station and ship stations in the vicinity of
         the private coast station.

[51 FR 31213, Sept. 2, 1986, as amended at 62 FR 40307, July 28, 1997]

§ 80.509 Frequency assignment.
Frequencies assignable to private coast stations and marine utility stations are listed in subpart H.

§ 80.513 Frequency coordination.
     (a) Except as provided in paragraphs (b) and (c) of this section each application for a new VHF private coast
         station license or modification of an existing license to be located in an area having a recognized
         frequency coordinating committee must be accompanied by:

           (1) A report based on a field study, indicating the degree of probable interference to existing stations
               operating in the same area. The applicant must consider all stations operating on the working
               frequency or frequencies requested or assigned within 80 km (50 miles) of the proposed station
               location, and

           (2) The report must include a statement that all existing licensees on the frequency within 80 km (50
               miles) and the frequency coordinating committee have been notified of the applicant's intention to
               file an application. The notice of intention to file must provide the licensees concerned and the
               advisory committee with the following information: The frequency and emission; transmitter location
               and power; and the antenna height proposed by the applicant.

     (b) Applications for modification need not be accompanied by the field study where the modification does not
         involve any change in frequency(ies), power, emission, antenna height, antenna location or area of
         operation.

     (c)

           (1) In lieu of the field study, the applicant may acquire a statement from a frequency coordinating
               committee. The applicant must certify on the application concerning the recommendations of the
               coordinating committee. The committee must comment on the requested frequency or the proposed
               changes in the authorized station and give an opinion regarding the probable interference to existing
               stations. The committee must consider all stations operating on the requested frequency within 80
               km (50 miles) of the proposed station location. The frequency coordinating committee statement
               must also recommend a frequency which will result in the least amount of interference to proposed
               and existing stations. Committee recommendations may also include comments on technical
               factors and may recommend restrictions to minimize interference.

           (2) A frequency coordinating committee must be representative of all persons who are eligible for VHF
               private coast stations within the service area of the recognized frequency coordinating committee. A
               statement of organization, service area and composition of the committee must be submitted to the
               Commission for approval. The functions of any coordinating committee are purely advisory to the
               applicant and the Commission. Its recommendations are not binding upon either the applicant or the
               Commission.

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                                                                                                                 47 CFR 80.514
Stations in the Maritime Services

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 68956, Dec. 14, 1998]

§ 80.514 Marine VHF frequency coordinating committee(s).
This section contains the names of organizations that have been recognized by the Commission to serve as marine
VHF frequency coordinating committees for their respective areas.

     (a) The Southern California Marine Radio Council serves the California counties of Santa Barbara, Kern, San
         Bernardino, Ventura, Los Angeles, Orange, Riverside, San Diego, Imperial and the Channel Islands.

     (b) The North Pacific Marine Radio Council serves the following counties in the State of Washington: Clallam,
         Island, Jefferson, King, Kitsap, Mason, Pierce, San Juan, Skagit, Snohomish, Thurston, and Whatcom.

[52 FR 35246, Sept. 18, 1987, as amended at 56 FR 6583, Feb. 19, 1991; 60 FR 50122, Sept. 28, 1995; 63 FR 68956, Dec. 14, 1998]

§ 80.515 Limitations on use.
A private coast station or marine utility station using telephony must:

     (a) Not be used for public correspondence;

     (b) Not be used to transmit program material for radio broadcasting; and

     (c) Not be used to transmit press material or news items which are not required to serve the needs of ships.

§ 80.517 Time limitation on communication.
All communication engaged in by private coast stations and marine utility stations must be limited to the minimum
practicable transmission time. Each station licensee must employ standardized operating practices and
procedures.

§ 80.519 Station identification.
     (a) Stations must identify transmissions by announcing in the English language the station's assigned call
         sign. In lieu of the identification of the station by voice, the official call sign may be transmitted by tone-
         modulated telegraphy in international Morse Code manually or by means of an automatic device
         approved by the Commission. Transmissions on the navigation frequency (156.650 MHz) by stations on
         drawbridges may be identified by use of the name of the bridge in lieu of the call sign. Identification must
         be made:

           (1) At the beginning and end of each exchange of communications and;

           (2) At intervals not exceeding 15 minutes whenever transmissions or communications are sustained for
               more than 15 minutes.

     (b) Marine utility stations, private coast stations, and associated hand-held radios, when exchanging
         communications, may be identified by a unit identifier in lieu of the call sign. Identification by transmission
         of the assigned call sign must be at the end of the exchange or at least once every 15 minutes.

[51 FR 31213, Sept. 2, 1986, as amended at 62 FR 40308, July 28, 1997]

Subpart L—Operational Fixed Stations

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                                                                                                            47 CFR 80.551
Stations in the Maritime Services

§ 80.551 Applicability.
This subpart contains rules applicable to operational fixed stations.

§ 80.553 Supplemental eligibility requirements.
An applicant for an operational fixed station must certify that:

         (a) The applicant is the licensee of a coast station;

         (b) Other suitable telecommunications facilities are not available to satisfy coast station requirements.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 68956, Dec. 14, 1998]

§ 80.555 Scope of communication.
An operational fixed station provides control, repeater or relay functions for its associated coast station.

§ 80.557 Assignment and use of frequencies.
The specific frequencies for these stations are listed in subpart H of this part.

§ 80.559 Licensing limitations.
Operational fixed stations are subject to the following licensing limitations:

         (a) A maximum of four frequencies will be assigned.

         (b) Stations will not be authorized when applications indicate less than 16 km (10 miles) separation between
             a proposed station and a TV transmitter operating on either Channel 4 or 5, or from the post office of a
             community in which either channel is assigned but not in operation.

         (c) Stations located between 16 km (10 miles) and 128 km (80 miles) of a TV transmitter operating on either
             Channel 4 or 5, or from the post office of a community in which either channel is assigned but not in
             operation, are secondary to TV operations within the Grade B service contour.[1]

[51 FR 31213, Sept. 2, 1986; 51 FR 34984, Oct. 1, 1986, as amended at 54 FR 40059, Sept. 29, 1989]

Subpart M—Stations in the Radiodetermination Service

   [1]
     OET Bulletin No. 67, March 1988, entitled “Potential Interference from Operational Fixed Stations in the
   72–76 MHz Band to Television Channels 4 and 5” describes an analytical model that can be used to calculate
   the potential interference that might result from a given fixed station operation. Copies of the bulletin may be
   obtained from the Commission's current duplication contractor. Information concerning the current duplication
   contractor may be obtained from the Office of Public Affairs, Consumer Assistance and Small Business
   Division, Telephone (202) 632–7000.

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                                                                                                                 47 CFR 80.601
Stations in the Maritime Services

§ 80.601 Scope of communications.
Stations on land in the Maritime Radiodetermination Service provide a radionavigation or radiolocation service for
ships.

§ 80.603 Assignment and use of frequencies.
The frequencies available for assignment to shore radionavigation/radiolocation stations are contained in subpart
H of this part.

§ 80.605 U.S. Coast Guard coordination.
     (a) Radionavigation coast stations operated to provide information to aid in the movement of any ship are
         private aids to navigation. Before submitting an application for a radionavigation station, an applicant
         must obtain written permission from the cognizant Coast Guard District Commander at the area in which
         the device will be located. The Commission may request an applicant to provide documentation as to this
         fact. Note: Surveillance radar coast stations do not require U.S. Coast Guard approval.

     (b) Coast station transponders (i.e., radar beacons, or racons) operating in the band 2900–3100 or
         9300–9500 MHz shall meet the requirements of ITU–R M.824–3 (incorporated by reference, see § 80.7).
         Applications for certification of these transponders must include a description of the technical
         characteristics of the equipment including the scheme of interrogation and the characteristics of the
         transponder response, and test results demonstrating the device meets each applicable requirement of
         this ITU–R recommendation.

     (c) The use of ship station transponders in the band 2900–3100 or 9300–9500 MHz other than those
         described in §§ 80.1085(a)(3) and 80.1095(b) is prohibited.

[52 FR 7419, Mar. 11, 1987, as amended at 63 FR 36607, July 27, 1998; 63 FR 68956, Dec. 14, 1998; 68 FR 46972, Aug. 7, 2003; 76
FR 67615, Nov. 2, 2011]

Subpart N—Maritime Support Stations
§ 80.651 Supplemental eligibility requirements.
     (a) An applicant for a maritime support station must demonstrate a requirement for training personnel
         associated with the maritime service or for the testing, demonstration or maintenance of ship or coast
         radio equipment.

     (b) [Reserved]

§ 80.653 Scope of communications.
     (a) Maritime support stations are land stations authorized to operate at permanent locations or temporary
         unspecified locations.

     (b) Maritime support stations are authorized to conduct the following operations:

           (1) Training of personnel in maritime telecommunications;

           (2) Transmissions necessary for the test and maintenance of maritime radio equipment at repair shops
               and at temporary unspecified locations;

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                                                                                                   47 CFR 80.653(b)(3)
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           (3) Transmissions necessary to test the technical performance of the licensee's public coast station(s)
               radiotelephone receiver(s); and

           (4) Transmissions necessary for radar/racon equipment demonstration.

[51 FR 31213, Sept. 2, 1986, as amended at 62 FR 40308, July 28, 1997]

§ 80.655 Use of frequencies.
     (a) The frequencies available for assignment to maritime support stations are described or listed in:

           (1) Section 80.373 for scope of communications described in § 80.653(b)(1);

           (2) Sections 80.373 and 80.385 for scope of communications described in § 80.653(b)(2); and

           (3) Section 80.389 for scope of communications described in § 80.653 (b)(3) and (4).

     (b) Frequencies must be used only on a secondary, non-interference basis to operational maritime
         communications.

     (c) Use of frequencies assigned to services other than the maritime radiolocation service is limited to one
         hour per twenty four hour period.

[51 FR 31213, Sept. 2, 1986, as amended at 52 FR 35245, Sept. 18, 1987]

§ 80.659 Technical requirements.
The authorized frequency tolerance, class of emission, bandwidth, and transmitter power for maritime support
stations are contained in subpart E of this part under the category associated with the intended use except for
power limitations imposed upon stations operating within the scope of § 80.653(b)(3), which are further limited by
the provisions of § 80.215(f).

Subpart O—Alaska Fixed Stations
§ 80.701 Scope of service.
There are two classes of Alaska Fixed stations. Alaska-public fixed stations are common carriers, open to public
correspondence, which operate on the paired duplex channels listed in subpart H of this part. Alaska-private fixed
stations may operate on simplex frequencies listed in subpart H of this part to communicate with other Alaska
private fixed stations or with ship stations, and on duplex frequencies listed in subpart H of this part when
communicating with the Alaska-public fixed stations. Alaska-private fixed stations must not charge for service,
although third party traffic may be transmitted. Only Alaska-public fixed stations are authorized to charge for
communication services.

§ 80.703 Priority of distress and other signals.
Alaska-public fixed stations, when operating on an authorized carrier frequency which is also used by the maritime
mobile service, must give priority to distress, urgency or safety signals, or to any communication preceded by one of
these signals.

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                                                                                                          47 CFR 80.705
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§ 80.705 Hours of service of Alaska-public fixed stations.
Each Alaska-public fixed station whose hours of service are not continuous must not suspend operations before
having concluded all communications of an emergency nature.

§ 80.707 Cooperative use of frequency assignments.
     (a) Only one Alaska-public fixed station will be authorized to serve any area whose point-to-point
         communication needs can be adequately served by a single radio communication facility.

     (b) Each radio channel authorized for use by an Alaska-private fixed station is available on a shared basis
         only. All station licensees must cooperate in the use of their respective frequency assignments to
         minimize interference.

§ 80.709 Frequencies available.
Frequencies assignable to Alaska fixed stations are listed in subpart H of this part.

§ 80.711 Use of U.S. Government frequencies.
Alaska-public fixed stations may be authorized to use frequencies assigned to U.S. Government radio stations for
communications with Government stations or for coordination of Government activities.

Subpart P—Standards for Computing Public Coast Station VHF Coverage
§ 80.751 Scope.
This subpart specifies receiver antenna terminal requirements in terms of power, and relates the power available at
the receiver antenna terminals to transmitter power and antenna height and gain. It also sets forth the co-channel
interference protection that VHF public coast station geographic area licensees must provide to incumbents and to
other VHF public coast station geographic area licensees.

[64 FR 26887, May 18, 1999]

§ 80.753 Signal strength requirements at the service area contour.
     (a) The requirements for reception by a marine VHF shipboard receiver are satisfied if the field strength from
         the coast station, calculated in accordance with § 80.771 is at least + 17 dBu above one microvolt.

     (b) These field strengths, voltages and powers at the receiver input are equivalent:

           (1) −132 dBW (decibels referred to 1 watt).

           (2) 1.8 microvolts across 50 ohms.

           (3) + 17 dBu (decibels referred to 1 microvolt per meter).

           (4) 7 microvolts per meter.

§ 80.755 Applicability.
Applications for maritime frequencies in the 156–162 MHz band must include a map showing the proposed service
area contour. The service area contour must be computed in accordance with the following procedures.

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                                                                                                          47 CFR 80.757
Stations in the Maritime Services

§ 80.757 Topographical data.
     (a) In the preparation of profile graphs and in determining the location and height above sea level of the
         antenna site, the elevations or contour intervals must be taken from U.S. Geological Survey topographic
         quadrangle maps, U.S. Army Corps of Engineers maps or Tennessee Valley Authority maps, whichever is
         the latest, for all areas for which maps are available. If such maps are not published for the area in
         question, the next best topographic information must be used. The maps used must include the principal
         area to be served. U.S. Geological Survey topographic quadrangle maps may be obtained from the
         Eastern Distribution Branch, U.S. Geological Survey, 1200 South Eads Street, Arlington, VA 22202, for
         maps of areas east of the Mississippi River, including Minnesota, Puerto Rico, and the Virgin Islands, and
         from the Western Distribution Branch, U.S. Geological Survey, Federal Center, Denver CO 80225, for maps
         of areas west of the Mississippi River, including Alaska, Hawaii, Louisiana, Guam and American Samoa.
         Sectional aeronautical charts are available from the Distribution Division, National Ocean Service,
         Riverdale, MD 20840.

     (b) In lieu of maps, the average terrain elevation may be computer generated, using elevations from a 30
         second point or better topographic data file such as those available for the U.S. Geological Survey's
         National Geographic Information Center or the National Oceanic and Atmospheric Administration's
         National Geophysical Data Center. In case of dispute maps will be used to determine the correct value.

§ 80.759 Average terrain elevation.
     (a)

           (1) Draw radials from the antenna site for each 45 degrees of azimuth starting with true north. Any such
               radial which extends entirely over land from the antenna site to the point of + 17 dBu field strength
               need not be drawn.

           (2) If the distance from the antenna site to the point of + 17 dBu field strength between any of the 45
               degrees radials would be less than the distances calculated along these radials, an additional radial
               between such adjacent radials must be plotted and calculations made in each case. Each additional
               radial must be that radial along which it appears by inspection that transmission loss would be
               greatest.

     (b) Draw a circle of 16 km (10 statute mile) radius using the antenna site as the center. Divide each radial into
         320 meter (0.2 statute mile) increments inside the circumference to the 3.2 km (2 statute mile) point.

     (c) Calculate the height above sea level of each 320 meter (0.2 statute mile) division by interpolating the
         contour intervals of the map, and record the value.

     (d) Average the values by adding them and dividing by the number of readings along each radial.

     (e) Calculate the height above average terrain by averaging the values calculated for each radial.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44953, Aug. 25, 1993]

§ 80.761 Conversion graphs.
The following graphs must be employed where conversion from one to the other of the indicated types of units is
required.

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                                                                                                     47 CFR 80.761(a)
Stations in the Maritime Services

     (a) Graph 1. To convert effective radiated power in watts to dBk or to dBW, find the power in watts on the
         horizontal axis. Move vertically along the line representing the power to the diagonal line. Move
         horizontally from the diagonal to the right side to read dBW and to the left to read dBk.

     (b) Graph 2. To convert microvolts across 50 ohms to received power in dBW, find the signal in microvolts on
         the horizontal axis. Move vertically to the diagonal line, then move right horizontally to read dBW.

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                                              47 CFR 80.761(b)
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                                              47 CFR 80.761(b)
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     (c) Graph 3. To convert received power in dBW to field intensity in dBu find the received power in dBW on the
         horizontal axis. Move vertically to the diagonal line, then move right horizontally to read dBu.

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                                              47 CFR 80.761(c)
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                                                                                                           47 CFR 80.763
Stations in the Maritime Services

§ 80.763 Effective antenna height.
The effective height of the antenna is the vertical distance between the center of the radiating system above the
mean sea level and the average terrain elevation.

§ 80.765 Effective radiated power.
Effective radiated power is used in computing the service area contour. The effective radiated power is derived from
the transmitter output power, loss in the transmission system including duplexers, cavities, circulators, switches and
filters, and the gain relative to a half-wave dipole of the antenna system.

§ 80.767 Propagation curve.
The propagation graph, § 80.767 Graph 1, must be used in computing the service area contour. The graph provides
data for field strengths in dBu for an effective radiated power of 1 kW, over sea water, fresh water or land (smooth
earth); transmitting antena heights of 4,800, 3,200, 1,600, 800, 400, 200, and 100 feet; based on a receiving antenna
height of 9 meters (30 feet), for the 156–162 MHz band. The use of this is described in this section.

     (a) Calculate the effective radiated power of the coast station, Ps in dB referred to 1 kW (dBk), as follows:

     where,

     Pt = Transmitter output power in dB referred to 1 kW: Transmitter output power in watts is converted to dBk by
     Pt = 10 [log10 (Power in watts)]−30. Also see § 80.761 Graph 1 for a conversion graph.

     G = Antenna gain in dB referred to a standard half-wave dipole, in the direction of each plotted radial, and

     L = Line losses between the transmitter and the antenna, in dB.

           Notes: 1. To determine field strengths where the distance is known, for effective radiated powers
           other than 1kW (0 dBk): Enter the graph from the “statute miles” scale at the known distance, read
           up to intersection with the curve for the antenna height, read left to the “dBu for 1 kW radiated”
           scale and note the referenced field strength (Fe). The value of the actual field strength (F) in dBu
           will be F = Fe + Ps where Ps is the effective radiated power calculated above.
           2. To determine distance, where the actual field strength is specified, for effective radiated powers
           other than 0 dBk: The value of the field referenced strength will be Fe = F−Ps in dBu. Enter the
           graph, from the “dBu for 1 kW radiated” scale at the corrected value of Fe, read right to intersection
           with the antenna height, read down to “statute miles” scale.

     (b) Determine the antenna height. For antenna heights between the heights for which this graph is drawn, use
         linear interpolation; assume linear height-gain for antennas higher than 4,800 feet.

     (c) For receiver antenna heights lower than 9 meters (30 feet), assume that the field strength is the same as
         at 9 meters (30 feet).

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                                                                                                     47 CFR 80.767(d)
Stations in the Maritime Services

     (d) Assume that propagation over fresh water or over land is the same as that over sea water.

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                                              47 CFR 80.767(d)
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                                                                                                           47 CFR 80.769
Stations in the Maritime Services

§ 80.769 Shadow loss.
Where the transmission path is obstructed the received signal must be adjusted to include shadow loss.
Attenuation due to shadowing must be taken from § 80.769 Graph 1, as follows:

     (a) Inspect the map(s) to determine if a hill(s) obstructs an imaginary line of sight (dashed line on illustrative
         profiles of § 80.769 Graph 1 from the average terrain elevation at the coast station antenna to the water
         level at the ship location. If average terrain elevation exceeds the actual ground elevation at the antenna
         site, the latter elevation must be used as the average terrain elevation.

     (b) If a hill appears to obstruct the radio path, plot the antenna site elevation, the obstruction elevation and
         the height of the ship station on rectangular coordinate paper using elevation above mean sea level as the
         vertical scale and distance in statute miles as the horizontal scale. Then draw a straight line between the
         antenna and the ship.

     (c) If a hill obstructs the imaginary line of sight, determine its height (H) above the imaginary line and its
         distance (D) from either the coast or ship station, whichever is nearer, as illustrated by examples “A” and
         “B” on Graph 1.

     (d) Read the shadow loss from this Graph 1 and subtract that loss from the computed received signal.

     (e) Where more than one hill obstructs the transmission path, determine the height and position of a single
         equivalent hill, as illustrated by example “C” on this graph. Read the shadow loss from this graph for the
         equivalent hill.

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                                              47 CFR 80.769(e)
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                                                                                                         47 CFR 80.771
Stations in the Maritime Services

§ 80.771 Method of computing coverage.
Compute the + 17 dBu contour as follows:

     (a) Determine the effective antenna height above mean sea level according to the procedures in §§
         80.757–80.761.

     (b) Determine the effective radiated power according to § 80,765. Determine for each radial the distance from
         the antenna site to the + 17 dBu point of field strength using procedures of §§ 80.765 and 80.767.

     (c) Plot on a suitable map each point of + 17 dBu field strength for all radials and draw the contour by
         connecting the adjacent points by a smooth curve.

§ 80.773 Co-channel interference protection.
     (a) Where a VHF public coast station geographic area licensee shares a frequency with an incumbent VHF
         public coast station licensee, the ratio of desired to undesired signal strengths must be at least 12 dB
         within the service area of the station.

     (b) Where a VHF public coast station geographic area licensee shares a frequency with an incumbent private
         land mobile radio licensee, the VHF public coast station geographic area licensee must provide at least 10
         dB protection to the PLMR incumbent's predicted 38 dBu signal level contour. The PLMR incumbent's
         predicted 38 dBu signal level contour is calculated using the F(50, 50) field strength chart for Channels
         7–13 in § 73.699 (Fig. 10a) of this chapter, with a 9 dB correction factor for antenna height differential,
         and is based on the licensee's authorized effective radiated power and antenna height-above-average-
         terrain.

     (c) VHF public coast station geographic area licensees are prohibited from exceeding a field strength of + 5
         dBu (decibels referenced to 1 microvolt per meter) at their service area boundaries, unless all the affected
         VHF public coast station geographic area licensees agree to the higher field strength.

[63 FR 40065, July 27, 1998, as amended at 64 FR 26887, May 18, 1999]

Subpart Q [Reserved]

Subpart R—Technical Equipment Requirements for Cargo Vessels Not Subject to Subpart W
§ 80.851 Applicability.
The radiotelephone requirements of this subpart are applicable to all compulsory ships which are not required to
comply with subpart W of this part in total or in part because they have received an exemption from all or some of
the subpart W provisions.

[68 FR 46973, Aug. 7, 2003]

§ 80.853 Radiotelephone station.
     (a) The radiotelephone station is a radiotelephone installation and other equipment necessary for the proper
         operation of the installation.

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                                                                                                      47 CFR 80.853(b)
Stations in the Maritime Services

     (b) The radiotelephone station must be installed to insure safe and effective operation of the equipment and
         to facilitate repair. Adequate protection must be provided against the effects of vibration, moisture, and
         temperature.

     (c) The radiotelephone station and all necessary controls must be located at the level of the main
         wheelhouse or at least one deck above the ship's main deck.

     (d) The principal operating position of the radiotelephone station must be in the room from which the ship is
         normally steered while at sea. In installations on cargo ships of 300 gross tons and upwards but less than
         500 gross tons on which the keel was laid prior to January 1, 1965, the location of the principal operating
         controls may be in a room adjoining and opening into the room from which the vessel is normally steered
         while at sea. If the station can be operated from any location other than the principal operating position, a
         positive means must be provided at the principal operating position to take full control of the station.

[51 FR 31213, Sept. 2, 1986, as amended at 68 FR 46973, Aug. 7, 2003]

§ 80.854 Radiotelephone installation.
The radiotelephone installation includes:

     (a) A radiotelephone transmitter;

     (b) A receiver as specified in § 80.858(a);

     (c) A main source of energy;

     (d) A reserve source of energy, when required by § 80.860(a);

     (e) An antenna system.

[51 FR 31213, Sept. 2, 1986, as amended at 76 FR 67615, Nov. 2, 2011]

§ 80.855 Radiotelephone transmitter.
     (a) The transmitter must be capable of transmission of H3E and J3E emission on 2182 kHz, and J3E
         emission on 2638 kHz and at least two other frequencies within the band 1605 to 3500 kHz available for
         ship-to-shore or ship-to-ship communication.

     (b) The duty cycle of the transmitter must permit transmission of the international radiotelephone alarm
         signal.

     (c) The transmitter must be capable of transmitting clearly perceptible signals from ship to ship during
         daytime under normal conditions over a range of 150 nautical miles.

     (d) The transmitter complies with the range requirement specified in paragraph (c) of this section if:

           (1) The transmitter is capable of being matched to actual ship station transmitting antenna meeting the
               requirements of § 80.863; and

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                                                                                                   47 CFR 80.855(d)(2)
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           (2) The output power is not less than 60 watts peak envelope power for H3E and J3E emission on the
               frequency 2182 kHz and for J3E emission on the frequency 2638 kHz into either an artificial antenna
               consisting of a series network of 10 ohms resistance and 200 picofarads capacitance, or an artificial
               antenna of 50 ohms nominal impedance. An individual demonstration of the power output capability
               of the transmitter, with the radiotelephone installation normally installed on board ship, may be
               required.

     (e) The transmitter must provide visual indication whenever the transmitter is supplying power to the
         antenna.

     (f) The transmitter must be protected from excessive currents and voltages.

     (g) A durable nameplate must be mounted on the transmitter or made an integral part of it showing clearly
         the name of the transmitter manufacturer and the type or model of the transmitter.

     (h) An artificial antenna must be provided to permit weekly checks of the automatic device for generating the
         radiotelephone alarm signal on frequencies other than the radiotelephone distress frequency.

§ 80.858 Radiotelephone receiver.
     (a) The receiver required by § 80.854(a) of this part must be capable of reception of H3E and J3E emissions
         on the radiotelephone distress frequency. The receiver must be capable of reception of J3E emissions on
         2638 kHz and the receiving frequencies associated with the transmitting frequencies authorized pursuant
         to § 80.855(a).

     (b) One or more loudspeakers capable of being used to maintain the distress frequency (2182 kHz) watch at
         the principal operating position and at any other place where the listening watch is performed must be
         provided.

     (c) The receiver required by paragraph (a) of the section must:

           (1) Have a sensitivity of 50 microvolts;

           (2) Be capable of operation when energized by the main source of energy, and by the reserve source of
               energy if a reserve source is required by § 80.860(a);

           (3) Be protected from excessive currents and voltages;

           (4) Be provided with a nameplate showing the name of the receiver manufacturer and the type or model.

     (d) The sensitivity of a receiver is the strength in microvolts of a signal, modulated 30 percent at 400 cycles
         per second, required at the receiver input to produce an audio output of 50 milliwatts to the loudspeaker
         with a signal-to-noise ratio of at least 6 decibels. Evidence of a manufacturer's rating or a demonstration
         of the sensitivity of a required receiver computed on this basis must be furnished upon request of a
         Commission representative.

[51 FR 31213, Sept. 2, 1986, as amended at 73 FR 4487, Jan. 25, 2008]

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                                                                                                         47 CFR 80.859
Stations in the Maritime Services

§ 80.859 Main power supply.
     (a) The main power supply must simultaneously energize the radiotelephone transmitter at its required
         antenna power and the required receivers. Under this load condition the voltage of the main power supply
         at the radiotelephone input terminals must not deviate from its rated potential by more than 10 percent on
         ships completed on or after July 1, 1941, nor by more than 15 percent on ships completed before that
         date.

     (b) Means must be provided for charging any batteries used as a main power supply. A continuous indication
         of the rate and polarity of the charging current must be provided during charging of the batteries.

§ 80.860 Reserve power supply.
     (a) When the main power supply is not on the same deck as the main wheelhouse or at least one deck above
         the vessel's main deck, a reserve power supply must be provided and must be so situated. The location of
         the reserve power supply must be located as near to the required transmitter and receivers as practicable
         and meet all applicable rules and regulations of the United States Coast Guard.

     (b) The reserve power supply must be independent of the propelling power of the ship and of any other
         electrical system, and must simultaneously energize the radiotelephone transmitter at its required
         antenna power, the required receivers, the emergency light and the automatic radiotelephone alarm signal
         generator. The reserve power supply must be available at all times.

     (c) The reserve power supply may be used to energize the bridge-to-bridge radiotelephone and the VHF
         radiotelephone installation required by § 80.871.

     (d) All circuits connected to the reserve power supply must be protected from overloads.

     (e) Means must be provided for charging any batteries used as a reserve power supply. A continuous
         indication of the rate and polarity of the charging current during charging of the batteries must be
         provided.

     (f) The cooling system of each internal combustion engine used as a part of the reserve power supply must
         be adequately treated to prevent freezing or overheating consistent with the season and route to be
         traveled by the particular vessel involved.

     (g) The reserve power supply must be available within 1 minute.

[51 FR 31213, Sept. 2, 1986; 52 FR 35246, Sept. 18, 1987]

§ 80.861 Required capacity.
If the main power supply or the reserve power supply provided for the purpose of complying with §§ 80.859 and
80.860 consists of batteries, the batteries must have sufficient reserve capacity available at all times while the
vessel is leaving or attempting to leave a harbor or port for a voyage in the open sea, and while being navigated in
the open sea outside of a harbor or port, to permit operation of the radiotelephone transmitter and the required
receivers for at least 6 hours continuously under normal working conditions.

§ 80.862 Proof of capacity.
     (a) When directed by the Commission or its authorized representative, the station licensee must prove that
         the requirements of § 80.861 are met.

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                                                                                                       47 CFR 80.862(b)
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     (b) Proof of the ability of a battery used as a main or reserve source to operate continuously for 6 hours can
         be established by a discharge test over a prescribed period of time, when supplying power at the voltage
         required for normal and operation to an electrical load as prescribed by paragraph (d) of this section.

     (c) When the reserve power supply is an engine-driven generator, proof of the adequacy of the engine fuel
         supply to operate the unit contiuously for 6 hours can be established by measuring the fuel consumption
         for 1 hour when supplying power, at the voltage required for normal operation, to an electrical load as
         prescribed by paragraph (d) of this section.

     (d) In determining the electrical load to be supplied, the following formula must be used:

           (1) One-half of the current of the required transmitter at its rated power output.

           (2) One fourth of the current of the automatic radiotelephone alarm signal generator; plus

           (3) Current of receiver; plus

           (4) Current of emergency light(s); plus

           (5) Current of the bridge-to-bridge transceiver when connected.

     (e) At the conclusion of the test specified in paragraphs (b) and (c) of this section, no part of the main or
         reserve power supply must have an excessive temperature rise, nor must the specific gravity or voltage of
         any battery be below 90 percent discharge point of the fully charged value.

§ 80.863 Antenna system.
     (a) An antenna system must be installed which is as nondirectional and as efficient as is practicable for the
         transmission and reception of radio ground waves over seawater. The installation and construction of the
         required antenna must insure operation in time of emergency.

     (b) If the required antenna is suspended between masts or other supports liable to whipping, a safety link
         which, under heavy stress, will operate to greatly reduce such stress without breakage of the antenna, the
         halyards, or other antenna-supporting elements, must be installed.

     (c) When an electrical ground connection is used as an element of the antenna system, the connection must
         be efficient.

§ 80.864 Emergency electric lights.
     (a) Emergency electric light(s) must be installed to illuminate the operating controls of the radiotelephone
         installation at the principal operating position, the card of instructions, and the radiotelephone station
         clock if the latter is not self-illuminated.

     (b) The emergency electric light(s) must be energized from the reserve power supply, if a reserve power
         supply is required. In cases where a reserve power supply is not required, the emergency lights must be
         energized independently of the system which supplies the normal lighting.

§ 80.865 Radiotelephone station clock.
A clock having a face of at least 12.7 cm (5 in.) in diameter must be mounted in a position that can be observed
from the principal operating position.

[58 FR 44953, Aug. 25, 1993]

47 CFR 80.865 (enhanced display)                                                                         page 211 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                       47 CFR 80.866
Stations in the Maritime Services

§ 80.866 Spare antenna.
A spare transmitting antenna completely assembled for immediate erection must be provided. If the installed
transmitting antenna is suspended between supports, this spare antenna must be a single-wire transmitting
antenna of the same length and must also include suitable insulators.

§ 80.867 Ship station tools, instruction books, circuit diagrams and testing equipment.
     (a) Each ship station must be provided with such tools, testing equipment, instruction books and circuit
         diagrams to enable the radiotelephone installation to be maintained in efficient working condition while at
         sea. Each ship station licensee must compile a list of spare parts, tools, test equipment and circuit
         diagrams it considers necessary for compliance with this requirement. This list must be available at
         inspection. The Commission may consider equipment manufacturer lists of recommended spare parts,
         tools, test equipment, and repair circuit diagrams in determining compliance with this subsection. These
         items must be located convenient to the radio room.

     (b) The testing equipment must include an instrument or instruments for measuring A.C. volts, D.C. volts and
         ohms.

§ 80.868 Card of instructions.
A card of instructions giving a clear summary of the radiotelephone distress procedure must be securely mounted
and displayed in full view of the principal operating position.

§ 80.869 Test of radiotelephone station.
Unless the normal use of the required radiotelephone station demonstrates that the equipment is operating, a test
communication on a required or working frequency must be made each day the ship is navigated. When this test is
performed by a person other than the master and the equipment is found to be defective the master must be
promptly notified.

§ 80.871 VHF radiotelephone station.
     (a) All passenger ships irrespective of size and all cargo ships of 300 gross tons and upwards subject to part
         II of title III of the Communications Act or to the Safety Convention are required to carry a VHF
         radiotelephone station complying with this subpart. Ships subject only to the Communications Act may
         use a VHF radiotelephone installation meeting the technical standards of the Bridge-to-Bridge Act to
         satisfy the watch requirements of § 80.305(a)(3) if the equipment can transmit and receive on 156.800
         MHz.

     (b) The VHF radiotelephone station must be installed to insure safe and effective operation of the equipment
         and facilitate repair. It must be protected against vibration, moisture and temperature.

     (c) The principal operating position of the radiotelephone station must be in the room from which the ship is
         normally steered while at sea.

47 CFR 80.871(c) (enhanced display)                                                                   page 212 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                      47 CFR 80.871(d)
Stations in the Maritime Services

      (d) The radiotelephone stations on ships subject to Part II of Title III of the Communications Act must be
          capable of operating on the frequency 156.800 MHz and in other respects meet the requirements of §
          80.143. The radiotelephone stations on ships subject to the Safety Convention must be capable of
          operating in the simplex mode on the ship station transmitting frequencies specified in the frequency
          band 156.025 MHz to 157.425 MHz and in the semiduplex mode on the two frequency channels specified
          in the following table:

                                                     Transmitting frequencies (MHz)
           Channel designators
                                               Ship station                 Coast station
 60                                                           156.025                       160.625
 01                                                           156.050                       160.650
 61                                                           156.075                       160.675
 02                                                           156.100                       160.700
 62                                                           156.125                       160.725
 03                                                           156.150                       160.750
 63                                                           156.175                       160.775
 04                                                           156.200                       160.800
 64                                                           156.225                       160.825
 05                                                           156.250                       160.850
 65                                                           156.275                       160.875
 06                                                           156.300
 66                                                           156.325                       160.925
 07                                                           156.350                       160.950
 67                                                           156.375                       156.375
 08                                                           156.400
 68                                                           156.425                       156.425
 09                                                           156.450                       156.450
 69                                                           156.475                       156.475
 10                                                           156.500                       156.500
 11                                                           156.550                       156.550
 71                                                           156.575                       156.575
 12                                                           156.600                       156.600
 72                                                           156.625
 13                                                           156.650                       156.650
 73                                                           156.675                       156.675
 14                                                           156.700                       156.700
 74                                                           156.725                       156.725
 15                                                           156.750                       156.750
 16                                                           156.800                       156.800
 17                                                           156.850                       156.850
 77                                                           156.875
 18                                                           156.900                       161.500

47 CFR 80.871(d) (enhanced display)                                                                    page 213 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                                 47 CFR 80.872
Stations in the Maritime Services

                                                            Transmitting frequencies (MHz)
            Channel designators
                                                     Ship station                    Coast station
 78                                                                 156.925                          161.525
 19                                                                 156.950                          161.550
 79                                                                 156.975                          161.575
 20                                                                 157.000                          161.600
 80                                                                 157.025                          161.625
 21                                                                 157.050                          161.650
 81                                                                 157.075                          161.675
 22                                                                 157.100                          161.700
 82                                                                 157.125                          161.725
 23                                                                 157.150                          161.750
 83                                                                 157.175                          161.775
 24                                                                 157.200                          161.800
 84                                                                 157.225                          161.825
 25                                                                 157.250                          161.850
 85                                                                 157.275                          161.875
 26                                                                 157.300                          161.900
 86                                                                 157.325                          161.925
 27                                                                 157.350                          161.950
 87                                                                 157.375                          161.975
 28                                                                 157.400                          162.000
 88                                                                 157.425                          162.025

1
    Guard band.

[51 FR 31213, Sept. 2, 1986; 52 FR 35246, Sept. 18, 1987, as amended at 54 FR 40059, Sept. 29, 1989; 73 FR 4487, Jan. 25, 2008;
82 FR 27213, June 14, 2017]

§ 80.872 The VHF radiotelephone installation.
The VHF radiotelephone installation includes:

       (a) A VHF radiotelephone transmitter,

       (b) A VHF radiotelephone receiver,

       (c) A power supply,

       (d) An antenna system.

§ 80.873 VHF radiotelephone transmitter.
       (a) The transmitter must be capable of transmission of G3E emission on 156.300 MHz and 156.800 MHz, and
           on frequencies which have been specified for use in a system established to promote safety of
           navigation. Vessels in waters of other Administrations are required to communicate on any channel
           designated by that Administration for navigational safety in the bands specified in § 80.871(d).
47 CFR 80.873(a) (enhanced display)                                                                             page 214 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                       47 CFR 80.873(b)
Stations in the Maritime Services

     (b) The transmitter must be adjusted so that the transmission of speech normally produces peak modulation
         within the limits of 75 percent and 100 percent.

     (c) The transmitter must deliver a carrier power between 8 and 25 watts into a 50 ohm effective resistance.
         Provision must be made for reducing the carrier power to a value between 0.1 and 1.0 watts.

     (d) The transmitter complies with the power output requirements specified in paragraph (c) of this section
         when:

           (1) The transmitter is capable of being adjusted for efficient use with an actual ship station transmitting
               antenna meeting the requirements of § 80.876; and

           (2) The transmitter has been demonstrated capable, with normal operating voltages applied, of
               delivering not less than 8 watts of carrier power into 50 ohms effective resistance over the frequency
               band specified in § 80.871(d). An individual demonstration of the power output capability of the
               transmitter, with the radiotelephone installation normally installed on board ship, may be required;
               and

           (3) It is certificated as required by subpart F of this part.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 36607, July 7, 1998]

§ 80.874 VHF radiotelephone receiver.
     (a) The receiver used for providing the watch for navaigational safety required by § 80.313 must be
         certificated by the Commission and capable of effective reception of G3E emission on the frequencies
         required by § 80.871(d) when connected to the antenna specified in § 80.876.

     (b) The receiver must have a usable sensitivity of 0.5 microvolts.

     (c) The receiver must deliver adequate audio output power to be heard in the ambient noise level likely to be
         expected on board ships with a loudspeaker and/or a telephone handset.

     (d) In the simplex mode when the transmitter is activated the receiver output must be muted.

[51 FR 31213, Sept. 2, 1986, as amended at 63 FR 36607, July 7, 1998]

§ 80.875 VHF radiotelephone power supply.
     (a) There must be readily available for use under normal load conditions a power supply sufficient to
         simultaneously energize the VHF transmitter at its required antenna power, and the VHF receiver. Under
         this load condition the voltage of the source of energy at the power input terminals of the VHF
         radiotelephone installation must not deviate from its rated value by more than 10 percent on ships
         completed on or after March 1, 1957, nor by more than 15 percent on ships completed before that date.

     (b) When the power supply for the VHF radiotelephone installation consists of batteries, they must be
         installed in the upper part of the ship, secured against shifting with motion of the ship, capable of
         operating the installation for 6 hours, and accessible with not less than 26 cm (10 in.) head room.

     (c) Means must be provided for charging any rechargeable batteries used in the ship's VHF radiotelephone
         installation. There must be provided a device which, during charging of the batteries, will give a
         continuous indication of the charging current.

47 CFR 80.875(c) (enhanced display)                                                                     page 215 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                        47 CFR 80.875(d)
Stations in the Maritime Services

     (d) The VHF radiotelephone installation may be connected to the reserve power supply of a compulsorily
         fitted radiotelephone or radiotelegraph installation.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44953, Aug. 25, 1993]

§ 80.876 VHF radiotelephone antenna system.
A vertically polarized nondirectional antenna must be provided for VHF radiotelephone installations. The
construction and installation of this antenna must insure proper operation in an emergency.

§ 80.877 Controls and indicators required for VHF radiotelephone installation.
The controls and indicators used on equipment of the VHF radiotelephone installation must meet the following
standards:

     (a) The size of controls must easily permit normal adjustment. The function and the setting of the controls
         must be clearly indicated.d

     (b) Controls must be illuminated to permit satisfactory operation of the equipment.

     (c) Means must be provided to reduce to extinction any light output from the equipment which could affect
         safety of navigation.

     (d) An on/off switch must be provided for the entire installation with a visual indication that the installation is
         switched on.

     (e) The equipment must indicate the channel number, as given in the Radio Regulations, to which it is tuned. It
         must allow the determination of the channel number under all conditions of external lighting. Channel 16
         must be distinctively marked.

     (f) The receiver must have a manual volume control and a squelch control.

     (g) If the external controls are on a separate control unit and more than one such control unit is provided, the
         one on the bridge must have priority over the others. When there is more than one control unit, indication
         must be given to the other(s) that the transmitter is in operation.

§ 80.880 Vessel radio equipment.
     (a) Vessels operated solely within twenty nautical miles of shore must be equipped with a VHF
         radiotelephone installation as described in this subpart, and maintain a continuous watch on Channel 16.

     (b) Vessels operated solely within one hundred nautical miles of shore must be equipped with a medium
         frequency transmitter capable of transmitting J3E emission and a receiver capable of reception of J3E
         emission within the band 1710 to 2850 kHz, in addition to the VHF radiotelephone installation required by
         paragraph (a) of this section, and must maintain a continuous watch on 2182 kHz. Additionally, such
         vessels must be equipped with either:

           (1) A single sideband radiotelephone capable of operating on all distress and safety frequencies in the
               medium frequency and high frequency bands listed in § 80.369(a) and (b), on all the ship-to-shore
               calling frequencies in the high frequency bands listed in § 80.369(d), and on at least four of the
               automated mutual-assistance vessel rescue (AMVER) system HF duplex channels (this requirement
               may be met by the addition of such frequencies to the radiotelephone installation required by
               paragraph (b) of this section); or

47 CFR 80.880(b)(1) (enhanced display)                                                                    page 216 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                     47 CFR 80.880(b)(2)
Stations in the Maritime Services

           (2) If operated in an area within the coverage of an INMARSAT maritime mobile geostationary satellite in
               which continuous alerting is available, an INMARSAT ship earth station meeting the equipment
               authorization rules of parts 2 and 80 of this chapter.

[68 FR 46973, Aug. 7, 2003]

§ 80.881 Equipment requirements for ship stations.
Vessels subject to subpart R of this part must be equipped as follows:

     (a) A category 1, 406.0–406.1 MHz EPIRB meeting the requirements of § 80.1061;

     (b) A NAVTEX receiver meeting the requirements of § 80.1101(c)(1);

     (c) A Search and Rescue Transponder meeting the requirements of § 80.1101(c)(6); and

     (d) A two-way VHF radiotelephone meeting the requirements of § 80.1101(c)(7).

[68 FR 46973, Aug. 7, 2003]

§ 80.882 2182 kHz watch.
Ships subject to this subpart must maintain a watch on the frequency 2182 kHz pursuant to § 80.305.

[73 FR 4487, Jan. 25, 2008]

Subpart S—Compulsory Radiotelephone Installations for Small Passenger Boats
§ 80.901 Applicability.
The provisions of Part III of Title III of the Communication Act require United States vessels which transport more
than six passengers for hire while such vessels are being navigated on any tidewater within the jurisdiction of the
United States adjacent or contiguous to the open sea, or in the open sea to carry a radiotelephone installation
complying with this subpart. The provisions of Part III do not apply to vessels which are equipped with a radio
installation for compliance with Part II of Title III of the Act, or for compliance with the Safety Convention, or to
vessels navigating on the Great Lakes.

§ 80.903 Inspection of radiotelephone installation.
Every vessel subject to Part III of Title III of the Communications Act must have a detailed inspection of the radio
installation by an FCC-licensed technician in accordance with § 80.59 once every five years. The FCC-licensed
technician must use the latest FCC Information Bulletin, How to Conduct an Inspection of a Small Passenger Vessel.
If the ship passes the inspection, the technician will issue a Communications Act Safety Radiotelephony Certificate.
Communications Act Radiotelephony Certificates may be obtained from the Commission's National Call
Center—(888) 225–5322—or from its forms contractor.

[63 FR 29660, June 1, 1998]

47 CFR 80.903 (enhanced display)                                                                         page 217 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                          47 CFR 80.905
Stations in the Maritime Services

§ 80.905 Vessel radio equipment.
     (a) Vessels subject to part III of title III of the Communications Act that operate in the waters described in §
         80.901 must, at a minimum, be equipped as follows:

           (1) Vessels operated solely within 20 nautical miles of land must be equipped with a VHF–DSC
               radiotelephone installation meeting the requirements of § 80.1101(c)(2), except that a VHF
               radiotelephone installation without DSC capability is permitted until one year after the Coast Guard
               notifies the Commission that shore-based sea area A1 coverage is established. Vessels in this
               category must not operate more than 20 nautical miles from land.

           (2) Vessels operated beyond the 20 nautical mile limitation specified in paragraph (a)(1) of this section,
               but not more than 100 nautical miles from the nearest land, must be equipped with a MF–DSC
               frequency transmitter meeting the requirements of § 80.1101(c)(3) and capable of transmitting J3E
               emission and a receiver capable of reception of J3E emission within the band 1710 to 2850 kHz, in
               addition to the VHF–DSC radiotelephone installation required by paragraph (a)(1) of this section,
               except that a MF radiotelephone installation without DSC capability is permitted until one year after
               the Coast Guard notifies the Commission that shore-based sea area A2 coverage is established. The
               MF or MF–DSC transmitter and receiver must be capable of operation on 2670 kHz.

           (3) Vessels operated more than 100 nautical miles but not more than 200 nautical miles from the
               nearest land must:

                 (i)   Be equipped with a VHF–DSC radiotelephone installation meeting the requirements of
                       paragraph (a)(1) of this section, except that a VHF radiotelephone installation without DSC
                       capability is permitted until one year after the Coast Guard notifies the Commission that shore-
                       based sea area A1 coverage is established;

                (ii) Be equipped with an MF–DSC radiotelephone transmitter and receiver meeting the
                     requirements of paragraph (a)(2) of this section, except that a MF radiotelephone installation
                     without DSC capability is permitted until one year after the Coast Guard notifies the
                     Commission that shore-based sea area A2 coverage is established; and

                (iii) Be equipped with either:

                       (A) A DSC-capable single sideband radiotelephone meeting the requirements of §
                           80.1101(c)(4) and capable of operating on all distress and safety frequencies in the
                           medium frequency and high frequency bands listed in § 80.369(a) and (b), on all of the
                           ship-to-shore calling frequencies in the high frequency bands listed in § 80.369(d), and on
                           at least four of the automated mutual-assistance vessel rescue (AMVER) system HF
                           duplex channels (this requirement may be met by the addition of such frequencies to the
                           radiotelephone installation required by paragraph (a)(2) of this section); or

                       (B) If operated in an area within the coverage of an INMARSAT maritime mobile geostationary
                           satellite in which continuous alerting is available, a GMDSS-approved Inmarsat ship earth
                           station.

                (iv) Be equipped with a reserve power supply meeting the requirements of §§ 80.917(b), 80.919 and
                     80.921, and capable of powering the single sideband radiotelephone or the ship earth station
                     (including associated peripheral equipment) required by paragraph (a)(3)(iii) of this section,
                     including the navigation receiver referred to in § 80.905(a)(5);

47 CFR 80.905(a)(3)(iv) (enhanced display)                                                               page 218 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                     47 CFR 80.905(a)(3)(v)
Stations in the Maritime Services

                (v) Be equipped with a NAVTEX receiver conforming to the following performance standards: IMO
                    Resolution A.525(13), as revised by IMO Resolution MSC.148(77) and ITU–R M.540–2 (all
                    incorporated by reference, see § 80.7);

                (vi) Be equipped with a Category I 406–406.1 MHz satellite emergency position-indicating
                     radiobeacon (EPIRB) meeting the requirements of § 80.1061; and

                (vii) Participate in the AMVER system while engaged on any voyage where the vessel is navigated in
                      the open sea for more than 24 hours. Copies of the AMVER Bulletin are available at: AMVER
                      Maritime Relations, USCG Battery Park Building, Room 201, New York, NY 10004–1499. Phone
                      212–668–7764; Fax 212–668–7684.

           (4) Vessels operated more than 200 nautical miles from the nearest land must:

                 (i)   Be equipped with two VHF–DSC radiotelephone installations meeting the requirements of
                       paragraph (a)(1) of this section, except that VHF radiotelephone installations without DSC
                       capability are permitted until one year after the Coast Guard notifies the Commission that
                       shore-based sea area A1 coverage is established;

                (ii) Be equipped with an MF–DSC radiotelephone transmitter and receiver meeting the
                     requirements of paragraph (a)(2) of this section, except that a MF radiotelephone installation
                     without DSC capability is permitted until one year after the Coast Guard notifies the
                     Commission that shore-based sea area A2 coverage is established;

                (iii) Be equipped with either:

                       (A) A DSC-capable independent single sideband radiotelephone meeting the requirements of
                           paragraph (a)(3)(iii)(A) of this section and that is capable of operating on all distress and
                           safety frequencies in the medium frequency and high frequency bands listed in §
                           80.369(a) and (b), on all of the ship-to-shore calling frequencies in the high frequency
                           bands listed in § 80.369(d), and on at least four of the automated mutual-assistance
                           vessel rescue (AMVER) system HF duplex channels; or

                       (B) If operated in an area within the coverage of an INMARSAT maritime mobile geostationary
                           satellite in which continuous alerting is available, an INMARSAT B, C, M, or Fleet F77 ship
                           earth station, or an INMARSAT A ship earth station if installed prior to February 12, 2004.

                (iv) Be equipped with a reserve power supply meeting the requirements of §§ 80.917(b), 80.919 and
                     80.921, and capable of powering the single sideband radiotelephone or the ship earth station
                     (including associated peripheral equipment) required by paragraph (a)(4)(iii) of this section,
                     including the navigation receiver referred to in § 80.905(a)(5);

                (v) Be equipped with a NAVTEX receiver conforming to the following performance standards: IMO
                    Resolution A.525(13), as revised by IMO Resolution MSC.148(77) and ITU–R M.540–2 (all
                    incorporated by reference, see § 80.7);

                (vi) Be equipped with a Category I 406–406.1 MHz satellite emergency position-indicating
                     radiobeacon (EPIRB) meeting the requirements of § 80.1061;

                (vii) Be equipped with an automatic radiotelephone alarm signal generator meeting the
                      requirements of § 80.221; and

47 CFR 80.905(a)(4)(vii) (enhanced display)                                                                page 219 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                       47 CFR 80.905(a)(4)(viii)
Stations in the Maritime Services

                (viii) Participate in the AMVER system while engaged on any voyage where the vessel is navigated in
                       the open sea for more than 24 hours. Copies of the AMVER Bulletin are available at: AMVER
                       Maritime Relations, USCG Battery Park Building, Room 201, New York, NY 10004–1499. Phone
                       212–668–7764; Fax 212–668–7684.

           (5) Vessels must comply with the requirements for a navigation receiver or manual updating of position
               information contained in § 80.1085(c).

     (b) For a vessel that is navigated within the communication range of a VHF public coast station or U.S. Coast
         Guard station, but beyond the 20-nautical mile limitation specified in paragraph (a)(1) of this section, an
         exemption from the band 1605 to 2850 kHz installation requirements may be granted if the vessel is
         equipped with a VHF transmitter and receiver. An application for exemption must include a chart showing
         the route of the voyage or the area of operation of the vessel, and the receiving service area of the VHF
         public coast or U.S. Coast Guard station. The coverage area of the U.S. Coast Guard station must be
         based on written information from the District Commander, U.S. Coast Guard, a copy of which must be
         furnished with the application. The coverage area of a public coast station must be computed by the
         method specified in subpart P of this part.

     (c) The radiotelephone installation must be installed to insure safe operation of the equipment and to
         facilitate repair. It must be protected against the vibration, moisture, temperature, and excessive currents
         and voltages.

     (d) A VHF-DSC radiotelephone installation or a remote unit must be located at each steering station except
         those auxiliary steering stations which are used only during brief periods for docking or for close-in
         maneuvering. A single portable VHF-DSC radiotelephone set meets the requirements of this paragraph if
         adequate permanent mounting arrangements with suitable power provision and antenna feed are
         installed at each operator steering station. Additionally, for vessels of more than 100 gross tons, the
         radiotelephone installation must be located at the level of the main wheelhouse or at least one deck
         above the vessel's main deck.

[51 FR 31213, Sept. 2, 1986, as amended at 56 FR 19301, Apr. 26, 1991; 57 FR 34262, Aug. 4, 1992; 68 FR 46973, Aug. 7, 2003; 69
FR 64677, Nov. 8, 2004; 73 FR 4487, Jan. 25, 2008; 76 FR 67616, Nov. 2, 2011]

Editorial Note: At 76 FR 67616, Nov. 2, 2011, in § 80.905, paragraph (a)(4)(vii) was revised, however, no text was
published, therefor it could not be incorporated.

§ 80.907 Principal operating position.
The principal operating position of the radiotelephone installation on vessels over 100 gross tons must be in the
room from which the vessel is normally steered while at sea. If the station can be operated from any location other
than the principal operating position, a positive means must be provided at the principal operating position to take
full control of the station.

§ 80.909 Radiotelephone transmitter.
     (a) The medium frequency transmitter must have a peak envelope output power of at least 60 watts for J3E
         emission on 2182 kHz and at least one ship-to-shore working frequency within the band 1605 to 2850 kHz
         enabling communication with a public coast station if the region in which the vessel is navigated is served
         by a public coast station operating in this band.

47 CFR 80.909(a) (enhanced display)                                                                            page 220 of 268
47 CFR Part 80 (up to date as of 2/20/2024)
                                                                                                      47 CFR 80.909(b)
Stations in the Maritime Services

     (b) The single sideband radiotelephone must be capable of operating on maritime frequencies in the band
         1710 to 27500 kHz with a peak envelope output power of at least 120 watts for J3E emission on 2182
         kHz and J3E emission on the distress and safety frequencies listed in § 80.369(b).

     (c) The transmitter complies with the power output requirements specified in paragraphs (a) or (b) of this
         section when:

           (1) The transmitter can be adjusted for efficient use with an actual ship station transmitting antenna
               meeting the requirements of § 80.923 of this part; and

           (2) The transmitter, with normal operating voltages applied, has been demonstrated to deliver its
               required output power on the frequencies specified in paragraphs (a) or (b) of this section into either
               an artificial antenna consisting of a series network of 10 ohms effective resistance and 200
               picofarads capacitance or an artificial antenna of 50 ohms nominal impedance. An individual
               demonstration of power output capability of the transmitter, with the radiotelephone installation
               normally installed on board ship, may be required.

     (d) The single sideband radiotelephone must be capable of transmitting clearly perceptible signals from ship
         to shore. The transmitter complies with this requirement if it is capable of enabling communication with a
         public coast station on working frequencies in the 4000 to 27500 kHz band specified in § 80.371(b) of
         this part under normal daytime operating conditions.

[56 FR 19302, Apr. 26, 1991, as amended at 57 FR 34262, Aug. 4, 1992; 68 FR 46974, Aug. 7, 2003]

§ 80.911 VHF transmitter.
     (a) The transmitter must be capable of transmission of G3E emission on 156.800 MHz, 156.300 MHz, and on
         the ship-to-shore working frequencies necessary to communicate with public coast stations serving the
         area in which the vessel is navigated.

     (b) The transmitter must be adjusted so that the transmission of speech normally produces peak modulation
         within the limits 75 percent and 100 percent.

     (c) The transmitter must be certificated to transmit between 20 watts and 25 watts, on each of the
         frequencies 156.300 MHz, 156.800 MHz and on ship-to-shore public correspondence channels, into 50
         ohms effective resistance when operated with a primary supply voltage of 13.6 volts DC.

     (d) When an individual demonstration of the capability of the transmitter is necessary the output power
         requirements prescribed in this paragraph must be met as follows:

           (1) Measurements of primary supply voltage and transmitter output power must be made with the
               equipment drawing energy only from ship's battery;

           (2) The primary supply voltage, measured at the power input terminals to the transmitter, and the output
               power of the transmitter, terminated in a matching artificial load, must be measured at the end of 10
               minutes of continuous operation of the transmitter at its full power output.

           (3) The primary supply voltage must not be less than 11.5 volts.

           (4) The transmitter output power must be not less than 15 watts.

           (5) For primary supply voltages, measured in accordance with the procedures of this paragraph, greater
               than 11.5 volts, but less than 12.6 volts, the required transmitter output power shall be equal to or
               greater than the value calculated from the formula
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                                                                                                         47 CFR 80.913
Stations in the Maritime Services

P = 4.375(V)−35.313

where V equals the measured primary voltage and P is the calculated output power in watts.”

[51 FR 31213, Sept. 2, 1986, as amended at 54 FR 40059, Sept. 29, 1989; 63 FR 36607, July 7, 1998]

§ 80.913 Radiotelephone receivers.
     (a) If a medium frequency radiotelephone installation is provided, the receiver must be capable of effective
         reception of J3E emissions, be connected to the antenna system specified by § 80.923, and be preset to,
         and capable of accurate and convenient selection of, the frequencies 2182 kHz, 2638 kHz, and the
         receiving frequency(s) of public coast stations serving the area in which the vessel is navigated.

     (b) If a single sideband radiotelephone installation is provided, the receiver must be capable of reception of
         H3E and J3E emissions on 2182 kHz and J3E emission on any receiving frequency authorized pursuant to
         § 80.909 of this part.

     (c) If a very high frequency radiotelephone installation is provided, the receiver used for maintaining the
         watch required by § 80.303 must be capable of effective reception of G3E emission, be connected to the
         antenna system specified by § 80.923 and be preset to, and capable of selection of, the frequencies
         156.300 MHz, 156.800 MHz, and the receiving frequency(s) of public coast stations serving the area in
         which the vessel is navigated.

     (d) One or more loudspeakers must be provided to permit reception on 2182 kHz or 156.800 MHz at the
         principal operating position and at any other place where listening is performed.

     (e) Any receiver provided as a part of the radiotelephone installation must have a sensitivity of at least 50
         microvolts in the case of MF equipment, and 1 microvolt in the case of HF or VHF equipment.

     (f) The receiver required in paragraphs (a), (b) or (c) of this section must be capable of efficient operation
         when energized by the main source of energy. When a reserve source of energy is required pursuant to §
         80.905 or § 80.917 of this part, the receiver must also be capable of efficient operation when energized by
         the reserve source of energy.

     (g) The sensitivity of a receiver is the strength in microvolts of a signal, modulated 30 percent at 400 Hertz,
         required at the receiver input to produce an audio output of 50 milliwatts to the loudspeaker with a signal-
         to-noise ratio of at least 6 decibels. Evidence of a manufacturer's rating or a demonstration of the
         sensitivity of a required receiver computed on this basis must be furnished upon request of the
         Commission.

[51 FR 31213, Sept. 2, 1986, as amended at 56 FR 19302, Apr. 26, 1991; 73 FR 4487, Jan. 25, 2008]

§ 80.915 Main power supply.
     (a) There must be readily available for use under normal load conditions a main power supply sufficient to
         simultaneously energize the radiotelephone transmitter at its required antenna power, and the required
         receiver. Under this load condition the potential of the main power supply at the power input terminals of
         the radiotelephone installation must not deviate from its rated potential by more than 10 percent on
         vessels completed on or after March 1, 1957, nor by more than 15 percent on vessels completed before
         that date.

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                                                                                                              47 CFR 80.915(b)
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     (b) When the main power supply consists of batteries, they must be installed as high above the bilge as
         practicable, secured against shifting with motion of the vessel, and accessible with not less than 26 cm
         (10 in.) head room.

     (c) Means must be provided for adequately charging any batteries used as a main power supply. There must
         be a device which gives a continuous indication of the rate and polarity of the charging current during
         charging.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44953, Aug. 25, 1993]

§ 80.917 Reserve power supply.
     (a) Any small passenger vessel the keel of which was laid after March 1, 1957, must have a reserve power
         supply located on the same deck as the main wheel house or at least one deck above the vessel's main
         deck, unless the main power supply is so situated, if—

           (1) The vessel is of more than 100 gross tons; or

           (2) Beginning March 25, 2009:

                 (i)   The vessel carries more than 150 passengers or has overnight accommodations for more than
                       49 persons; or

                (ii) The vessel operates on the high seas or more than three miles from shore on Great Lakes
                     voyages.

     (b) The reserve power supply must be independent of the ship's propulsion and of any other electrical system,
         and be sufficient to simulataneously energize the radiotelephone transmitter at its required output power,
         and the receiver. The reserve power supply must be available for use at all times.

     (c) When the reserve power supply consists of batteries, they must be installed as high above the bilge as
         practicable, secured against shifting with motion of the vessel, and accessible with not less than 26 cm
         (10 in.) head room.

     (d) The reserve power supply must be located as near the required transmitter and receiver as practicable.

     (e) All reserve power supply circuits must be protected from overloads.

     (f) Means must be provided for charging any storage batteries used as a reserve power supply for the
         required radiotelephone installation. There must be a device which will give continuous indication of the
         rate and polarity of the charging current during charging.

     (g) The cooling system of each internal combustion engine used as a part of the reserve power supply must
         be adequately treated to prevent freezing or overheating consistent with the season and route to be
         travelled by the particular vessel involved.

     (h) Beginning January 2, 2013, any small passenger vessel that does not carry a reserve power supply must
         carry at least one VHF handheld radiotelephone.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44954, Aug. 25, 1993; 73 FR 4488, Jan. 25, 2008; 76 FR 67616, Nov. 2, 2011]

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                                                                                                             47 CFR 80.919
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§ 80.919 Required capacity.
If either the main or reserve power supply includes batteries, these batteries must have sufficient reserve capacity
to permit proper operation of the required transmitter and receiver for at least 3 hours under normal working
conditions.

§ 80.921 Proof of capacity.
     (a) When directed by a representative of the Commission the vessel must prove by demonstration as
         prescribed in paragraphs (b), (c), (d) and (e) of this section, that the requirements of § 80.919 are met.

     (b) Proof of the ability of a storage battery used as a main or reserve power supply to operate over the 3-hour
         period established by a discharge test over the prescribed period of time, when supplying power at the
         voltage required for an electrical loss as prescribed by paragraph (d) of this section.

     (c) When the required power supply consists of an engine-driven generator, proof of the adequacy of the
         engine fuel supply to operate the unit over the 3-hour period of time may be established by using as a
         basis the fuel consumption during a 1 hour period when supplying power, at the voltage required for
         operating an electrical load as prescribed by paragraph (d) of this section.

     (d) In determining the required electrical load the following formula must be used:

           (1) One-half of the current of the required transmitter at its rated output power; plus

           (2) Current of the required receiver; plus

           (3) Current of electric light, if required by § 80.925; plus

           (4) The sum of the current of all other loads the reserve power supply may provide in time of emergency.

     (e) At the conclusion of the test specified in paragraphs (b) and (c) of this section, no part of the main or
         reserve power supply must have an excessive temperature rise, nor must the specific gravity or voltage of
         any storage battery be below the 90 percent discharge point.

§ 80.923 Antenna system.
An antenna must be provided in accordance with the applicable requirements of § 80.81 of this part which is as
efficient as practicable for the transmission and reception of radio waves. The construction and installation of this
antenna must insure proper emergency operation.

[51 FR 31213, Sept. 2, 1986, as amended at 56 FR 19302, Apr. 26, 1991]

§ 80.925 Electric light.
     (a) If the vessel is navigated at night an electric light or dial lights which clearly illuminate the operating
         controls must be installed to provide illumination of the operating controls at the principal operating
         position.

     (b) The electric light must be energized from the main power supply and, if a reserve power supply for the
         radiotelephone installation is required, from the reserve power supply.

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                                                                                                                 47 CFR 80.927
Stations in the Maritime Services

§ 80.927 Antenna radio frequency indicator.
The transmitter must be equipped with a device which provides visual indication whenever the transmitter is
supplying power to the antenna.

§ 80.929 Nameplate.
A durable nameplate must be mounted on the required radiotelephone equipment. When the transmitter and
receiver comprise a single unit, one nameplate is sufficient. The nameplate must show the name of the
manufacturer and the type or model number.

§ 80.931 Test of radiotelephone installation.
Unless normal use of the radiotelephone installation demonstrates that the equipment is in proper operating
condition, a test communication on a required frequency in the 1605 to 27500 kHz band or the 156 to 162 MHz
band must be made by a qualified operator each day the vessel is navigated. If the equipment is not in proper
operating condition, the master must be promptly notified.

[51 FR 31213, Sept. 2, 1986, as amended at 56 FR 19302, Apr. 26, 1991]

§ 80.933 General small passenger vessel exemptions.
     (a) Subject U.S. vessels less than 50 gross tons which are navigated not more than 300 meters (1,000 feet)
         from the nearest land at mean low tide are exempt from the provisions of title III, part III of the
         Communications Act.

     (b) All U.S. passenger vessels of less than 100 gross tons, not subject to the radio provisions of the Safety
         Convention, are exempt from the radiotelegraph provisions of Part II of Title III of the Communications
         Act, provided that the vessels are equipped with a radiotelephone installation fully complying with subpart
         S of this part.

     (c) These exemptions may be terminated at any time without hearing, if in the Commission's discretion, the
         need for such action arises.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44954, Aug. 25, 1993; 60 FR 58245, Nov. 27, 1995; 68 FR 46974, Aug. 7, 2003;
73 FR 4488, Jan. 25, 2008]

§ 80.935 Station clock.
Each station subject to this subpart must have a working clock or timepiece readily available to the operator.

Subpart T—Radiotelephone Installation Required for Vessels on the Great Lakes

Source: 88 FR 77222, Nov. 9, 2023, unless otherwise noted.

§ 80.951 Applicability.
The rules in this subpart apply to vessels of all countries when navigated on the Great Lakes. The Great Lakes are
defined as all waters of Lakes Ontario, Erie, Huron (including Georgian Bay), Michigan, Superior, their connecting and
tributary waters and the River St. Lawrence as far east as the lower exit of the St. Lambert Lock at Montreal in the
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                                                                                                           47 CFR 80.951(a)
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Province of Quebec, Canada, but do not include any connecting and tributary waters except the St. Marys River, the
St. Clair River, Lake St. Clair, the Detroit River and the Welland Canal. A vessel that falls into a category specified in
paragraph (a), (b), or (c) of this section and is not excepted by paragraph (d) or (e) of this section must comply with
this subpart while navigated on the Great Lakes.

     (a) Every vessel 20 meters (65 feet) or over in length (measured from end to end over the deck, exclusive of
         sheer).

     (b) Every vessel engaged in towing another vessel or floating object, except:

           (1) Where the maximum length of the towing vessel, measured from end to end over the deck exclusive
               of sheer, is less than 8 meters (26 feet) and the length or breadth of the tow, exclusive of the towing
               line, is less than 20 meters (65 feet);

           (2) Where the vessel towed complies with this subpart;

           (3) Where the towing vessel and tow are located within a booming ground (an area in which logs are
               confined); or

           (4) Where the tow has been undertaken in an emergency and neither the towing vessel nor the tow can
               comply with this part

     (c) Any vessel carrying more than six passengers for hire.

     (d) The requirements of this subpart do not apply to:

           (1) Ships of war and troop ships;

           (2) Vessels owned and operated by any national government and not engaged in trade.

     (e) The Commission may if it considers that the conditions of the voyage or voyages affecting safety
         (including but not necessarily limited to the regularity, frequency and nature of the voyages, or other
         circumstances) are such as to render full application of the rules of this subpart unreasonable or
         unnecessary, exempt partially, conditionally or completely, any individual vessel for one or more voyages
         or for any period of time not exceeding one year.

§ 80.953 Inspection and certification.
     (a) Each U.S. flag vessel subject to this subpart must have an inspection of the required radiotelephone
         installation at least once every 48 months. This inspection must be made while the vessel is in active
         service or within not more than one month before the date on which it is placed in service.

     (b) An inspection and certification of a ship subject to this subpart must be made by a technician holding one
         of the following: a General Radiotelephone Operator License, a GMDSS Radio Maintainer's License, a
         Radiotelegraph Operator License, a Second Class Radiotelegraph Operator's Certificate, or a First Class
         Radiotelegraph Operator's Certificate. Additionally, the technician must not be the vessel's owner, operator,
         master, or an employee of any of them. The results of the inspection must be recorded in the ship's
         radiotelephone log and include:

           (1) The date the inspection was conducted;

           (2) The date by which the next inspection needs to be completed;

           (3) The inspector's printed name, address, class of FCC license (including the serial number);

           (4) The results of the inspection, including any repairs made; and
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           (5) The inspector's signed and dated certification that the vessel meets the requirements contained in
               this subpart and the Bridge-to-Bridge Act contained in subpart U of this part and has successfully
               passed the inspection.

     (c) The vessel owner, operator, or ship's master must certify that the inspection required by paragraph (b) of
         this section was satisfactory.

     (d) The ship's radiotelephone logs containing entries certifying that a Great Lakes safety inspection has been
         conducted must be retained on board and available for inspection until the next radio inspection.

§ 80.955 Radiotelephone installation.
     (a) Each U.S. flag vessel of less than 38 meters (124 feet) in length while subject to this subpart must have a
         radiotelephone meeting the provisions of this subpart in addition to the other rules in this part governing
         ship stations using telephony.

     (b) Each U.S. flag vessel of 38 meters (124 feet) or more in length while subject to this subpart must have a
         minimum of two VHF radiotelephone installations in operating condition meeting the provisions of this
         subpart. The second VHF installation must be electrically separate from the first VHF installation.
         However, both may be connected to the main power supply provided one installation can be operated
         from a separate power supply located as high as practicable on the vessel.

     (c) This paragraph does not require or prohibit the use of other frequencies for use by the same
         “radiotelephone installation” for communication authorized by this part.

§ 80.956 Required frequencies and uses.
     (a) Each VHF radiotelephone installation must be capable of transmitting and receiving G3E emission as
         follows:

           (1) Channel 16—156.800 MHz—Distress, Safety and Calling; and

           (2) Channel 6—156.300 MHz—Primary intership.

     (b) The radiotelephone station must have additional frequencies as follows:

           (1) Those ship movement frequencies appropriate to the vessel's area of operation: Channel
               11—156.550 MHz, Channel 12—156.600 MHz, or Channel 14—156.700 MHz.

           (2) The navigational bridge-to-bridge frequency, 156.650 MHz (channel 13).

           (3) Such other frequencies as required for the vessel's service.

           (4) One channel for receiving marine navigational warnings for the area of operation.

     (c) Every radiotelephone station must include one or more transmitters, one or more receivers, one or more
         sources of energy and associated antennas and control equipment. The radiotelephone station, exclusive
         of the antennas and source of energy, must be located as high as practicable on the vessel, preferably on
         the bridge, and protected from water, temperature, and electrical and mechanical noise.

§ 80.957 Principal operating position.
     (a) The principal operating position of the radiotelephone installation must be on the bridge, convenient to the
         conning position.

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                                                                                                      47 CFR 80.957(b)
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     (b) When the radiotelephone station is not located on the bridge, operational control of the equipment must
         be provided at the location of the radiotelephone station and at the bridge operating position. Complete
         control of the equipment at the bridge operating position must be provided.

§ 80.959 Radiotelephone transmitter.
     (a) The transmitter must be capable of transmission of G3E emission on the required frequencies.

     (b) The transmitter must deliver a carrier power of between 10 watts and 25 watts into 50 ohms nominal
         resistance when operated with its rated supply voltage. The transmitter must be capable of readily
         reducing the carrier power to one watt or less.

     (c) To demonstrate the capability of the transmitter, measurements of primary supply voltage and transmitter
         output power must be made with the equipment operating on the vessel's main power supply, as follows:

           (1) The primary supply voltage measured at the power input terminals to the transmitter terminated in a
               matching artificial load, must be measured at the end of 10 minutes of continuous operation of the
               transmitter at its rated power output.

           (2) The primary supply voltage, measured in accordance with the procedures of this paragraph, must be
               not less than 11.5 volts.

           (3) The transmitter at full output power measured in accordance with the procedure of this paragraph
               must not be less than 10 watts.

§ 80.961 Radiotelephone receiver.
     (a) The receiver must be capable of reception of G3E emission on the required frequencies.

     (b) The receiver must have a sensitivity of at least 2 microvolts across 50 ohms for a 20 decibel signal-to-
         noise ratio.

§ 80.963 Main power supply.
     (a) A main power supply must be available at all times while the vessel is subject to the requirements of this
         subpart.

     (b) Means must be provided for charging any batteries used as a source of energy. A device which during
         charging of the batteries gives a continuous indication of charging current must be provided.

§ 80.965 Reserve power supply.
     (a) Each passenger vessel of more than 100 gross tons and each cargo vessel of more than 300 gross tons
         must be provided with a reserve power supply independent of the vessel's normal electrical system and
         capable of energizing the radiotelephone installation and illuminating the operating controls at the
         principal operating position for at least 2 continuous hours under normal operating conditions. When
         meeting this 2-hour requirement, such reserve power supply must be located on the bridge level or at
         least one deck above the vessel's main deck.

     (b) Instead of the independent power supply specified in paragraph (a) of this section, the vessel may be
         provided with an auxiliary radiotelephone installation having a power source independent of the vessel's
         normal electrical system. Any such installation must comply with §§ 80.955, 80.956, 80.957, 80.959,
         80.961, 80.969 and 80.971, as well as the general technical standards contained in this part. Additionally,
         the power supply for any such auxiliary radiotelephone must be a “reserve power supply” for the purposes
         of paragraphs (c), (d) and (e) of this section.
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                                                                                                          47 CFR 80.965(c)
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     (c) Means must be provided for adequately charging any batteries used as a reserve power supply for the
         required radiotelephone installation. A device must be provided which, during charging of the batteries,
         gives a continuous indication of charging.

     (d) The reserve power supply must be available within one minute.

     (e) The station licensee, when directed by the Commission, must prove by demonstration as prescribed in
         paragraphs (e)(1), (2), (3), and (4) of this section that the reserve power supply is capable of meeting the
         requirements of paragraph (a) of this section as follows:

           (1) When the reserve power supply includes a battery, proof of the ability of the battery to operate
               continuously for the required time must be established by a discharge test over the required time,
               when supplying power at the voltage required for normal operation to an electric load as prescribed
               by paragraph (e)(3) of this section.

           (2) When the reserve power supply includes an engine driven generator, proof of the adequacy of the
               engine fuel supply to operate the unit continuously for the required time may be established by using
               as a basis the fuel consumption during a continuous period of one hour when supplying power, at
               the voltage required for normal operation, to an electrical load as prescribed by paragraph (e)(3) of
               this section.

           (3) For the purposes of determining the electrical load to be supplied, the following formula must be
               used:

                 (i)   One-half of the current of the radiotelephone while transmitting at its rated output, plus one-half
                       the current while not transmitting; plus

                (ii) Current of the required receiver; plus

                (iii) Current of the source of illumination provided for the operating controls prescribed by § 80.969;
                      plus

                (iv) The sum of the currents of all other loads to which the reserve power supply may provide power
                     in time of emergency or distress.

           (4) At the conclusion of the test specified in paragraphs (e)(1) and (2) of this section, no part of the
               reserve power supply must have excessive temperature rise, nor must the specific gravity or voltage
               of any battery be below the 90 percent discharge point.

§ 80.967 Antenna system.
The antenna must be omnidirectional, vertically polarized and located as high as practicable on the masts or
superstructure of the vessel.

§ 80.969 Illumination of operating controls.
     (a) The radiotelephone must have dial lights which illuminate the operating controls at the principal operating
         position.

     (b) Instead of dial lights, a light from an electric lamp may be provided to illuminate the operating controls of
         the radiotelephone at the principal operating position. If a reserve power supply is required, arrangements
         must permit the use of that power supply for illumination within one minute.

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                                                                                                           47 CFR 80.971
Stations in the Maritime Services

§ 80.971 Test of radiotelephone installation.
At least once during each calendar day a vessel subject to this subpart must test communications on 156.800 MHz
to demonstrate that the radiotelephone installation is in proper operating condition unless the normal daily use of
the equipment demonstrates that this installation is in proper operating condition. If equipment is not in operating
condition, the master must have it restored to effective operation as soon as possible.

Subpart U—Radiotelephone Installations Required by the Bridge-to-Bridge Act
§ 80.1001 Applicability.
The Bridge-to-Bridge Act and the regulations of this part apply to the following vessels in the navigable waters of
the United States:

     (a) Every power-driven vessel of 20 meters or over in length while navigating;

     (b) Every vessel of 100 gross tons and upward carrying one or more passengers for hire while navigating;

     (c) Every towing vessel of 7.8 meters (26 feet) or over in length, measured from end to end over the deck
         excluding sheer, while navigating; and

     (d) Every dredge and floating plant engaged, in or near a channel or fairway, in operations likely to restrict or
         affect navigation of other vessels. An unmanned or intermittently manned floating plant under the control
         of a dredge shall not be required to have a separate radiotelephone capability.

[51 FR 31213, Sept. 2, 1986, as amended at 57 FR 61012, Dec. 23, 1992; 58 FR 44954, Aug. 25, 1993]

§ 80.1003 Station required.
Vessels subject to the Bridge-to-Bridge Act must have a radiotelephone installation to enable the vessel to
participate in navigational communications. This radiotelephone installation must be continuously associated with
the ship even though a portable installation is used. Foreign vessels coming into U.S. waters where a bridge-to-
bridge station is required may fulfill this requirement by use of portable equipment brought a board by the pilot. Non
portable equipment, when used, must be arranged to facilitate repair. The equipment must be protected against
vibration, moisture, temperature and excessive currents and voltages.

§ 80.1005 Inspection of station.
The bridge-to-bridge radiotelephone station will be inspected on vessels subject to regular inspections pursuant to
the requirements of Parts II and III of Title III of the Communications Act, the Safety Convention, or subpart T of this
part at the time of the regular inspection. If after such inspection, the Commission determines that the Bridge-to-
Bridge Act, the rules of the Commission and the station license are met, an endorsement will be made on the
appropriate document. The validity of the endorsement will run concurrently with the period of the regular
inspection. Each vessel must carry a certificate with a valid endorsement while subject to the Bridge-to-Bridge Act.
All other bridge-to-bridge stations will be inspected from time-to-time. An inspection of the bridge-to-bridge station
on a vessel subject to subpart T of this part must normally be made at the same time as the inspection required
under subpart T of this part and must be conducted by a technician holding one of the following: a General
Radiotelephone Operator License, a GMDSS Radio Maintainer's License, a Radiotelegraph Operator License, a
Second Class Radiotelegraph Operator's Certificate, or a First Class Radiotelegraph Operator's Certificate.

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                                                                                                        47 CFR 80.1007
Stations in the Maritime Services

Additionally, the technician must not be the vessel's owner, operator, master, or an employee of any of them. Ships
subject to the Bridge-to-Bridge Act may, in lieu of an endorsed certificate, certify compliance in the station log
required by section 80.409(f).

[88 FR 77224, Nov. 9, 2023]

§ 80.1007 Bridge-to-bridge radiotelephone installation.
Use of the bridge-to-bridge transmitter must be restricted to the master or person in charge of the vessel, or the
person designated by the master or person in charge to pilot or direct the movement of the vessel. Communications
must be of a navigational nature exclusively.

§ 80.1009 Principal operator and operating position.
The principal operating position of the bridge-to-bridge station must be the vessel's navigational bridge or, in the
case of dredges, its main control station. If the radiotelephone installation can be operated from any location other
than the principal operating position, the principal operating position must be able to take full control of the
installation.

§ 80.1011 Transmitter.
     (a) The bridge-to-bridge transmitter must be capable of transmission of G3E emission on the navigational
         frequency 156.650 MHz (Channel 13) and the Coast Guard liaison frequency 157.100 MHz (Channel 22A).
         Additionally, the bridge-to-bridge transmitter must be capable of transmission of G3E emission on the
         navigational frequency of 156.375 MHz (Channel 67) while transiting any of the following waters:

           (1) The lower Mississippi River from the territorial sea boundary, and within either the Southwest Pass
               safety fairway or the South Pass safety fairway specified in § 166.200 of the U.S. Coast Guard's
               Rules, 33 CFR 166.200, to mile 242.4 AHP (Above Head of Passes) near Baton Rouge;

           (2) The Mississippi River-Gulf Outlet from the territorial sea boundary, and within the Mississippi River-
               Gulf outlet Safety Fairway specified in § 166.200 of the U.S. Coast Guard's Rules, 33 CFR 166.200, to
               that channel's junction with the Inner Harbor Navigation Canal; and

           (3) The full length of the Inner Harbor Navigation Canal from its junction with the Mississippi River to
               that canal's entry to Lake Pontchartrain at the New Seabrook vehicular bridge.

     (b) [Reserved]

[57 FR 61012, Dec. 23, 1992]

§ 80.1013 Receiver.
The bridge-to-bridge receiver must be capable of reception of G3E emission on the navigational frequency 156.650
MHz (Channel 13) and the Coast Guard liaison frequency 157.100 MHz (Channel 22A). In addition, the bridge-to-
bridge receiver must be capable of reception of G3E emission on the navigational frequency of 156.375 MHz
(Channel 67) while transiting in the waters of the lower Mississippi River as described in §§ 80.1011 (a)(1), (a)(2)
and (a)(3) of this part.

[57 FR 61012, Dec. 23, 1992]

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§ 80.1015 Power supply.
     (a) There must be readily available for use under normal load conditions, a power supply sufficient to
         simultaneously energize the bridge-to-bridge transmitter at its required antenna power, and the bridge-to-
         bridge receiver. Under this load condition the voltage of the power supply at the power input terminals of
         the bridge-to-bridge radiotelephone installation must not deviate from its rated voltage by more than 10
         percent on vessels completed on or after March 1, 1957, nor by more than 15 percent on vessels
         completed before that date.

     (b) When the power supply for a nonportable bridge-to-bridge radiotelephone installation consists of or
         includes batteries, they must be installed as high above the bilge as practicable, secured against shifting
         with motion of the vessel, and accessible with not less than 26 cm (10 in.) head room.

     (c) Means must be provided for adequately charging any rechargeable batteries used in the vessel's bridge-
         to-bridge radiotelephone installation. There must be provided a device which will give a continuous
         indication of the charging current during charging.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44954, Aug. 25, 1993]

§ 80.1017 Antenna system.
     (a) An antenna must be provided for nonportable bridge-to-bridge radiotelephone installations which is
         nondirectional and vertically polarized. The construction and installation of this antenna must insure
         proper operation in time of an emergency.

     (b) In cases where portable bridge-to-bridge equipment is permanently associated with a vessel, the
         equipment must be provided with a connector for an external antenna of a type capable of meeting
         requirements of paragraph (a) of this section and § 80.71. The vessel must be equipped with an external
         antenna meeting requirements of paragraph (a) of this section and § 80.71, capable of use with the
         portable equipment during a normal listening watch.

§ 80.1019 Antenna radio frequency indicator.
Each nonportable bridge-to-bridge transmitter must be equipped, at each point of control, with a carrier operated
device which will provide continuous visual indication when the transmitter is supplying power to the antenna
transmission line or, in lieu thereof, a pilot lamp or meter which will provide continuous visual indication when the
transmitter control circuits have been placed in a condition to activate the transmitter.

[52 FR 35246, Sept. 18, 1987]

§ 80.1021 Nameplate.
A durable nameplate must be mounted on the required radiotelephone or be an integral part of it. When the
transmitter and receiver comprise a single unit, one nameplate is sufficient. The nameplate must show at least the
name of the manufacturer and the type or model number.

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§ 80.1023 Test of radiotelephone installation.
Unless normal use of the required radiotelephone installation demonstrates that the equipment is in proper
operating condition, a test communication for this purpose must be made by a qualified operator each day the
vessel is navigated. If the equipment is not in proper operating condition, the master must be promptly notified. The
master must have it restored to effective operating condition as soon as possible.

Subpart V—Emergency Position Indicating Radiobeacons (EPIRB's)
§ 80.1051 Scope.
This subpart describes the technical and performance requirements for EPIRB stations.

[73 FR 4488, Jan. 25, 2008]

§ 80.1053 Prohibition on certification, manufacture, importation, sale or use of Class A, Class B,
Class S, and INMARSAT–E EPIRBs.
The manufacture, importation, sale or use of Class A, Class B, Class S, or INMARSAT–E EPIRBs is prohibited. New
Class A, Class B, Class S, or INMARSAT–E EPIRBs will no longer be certified by the Commission.

[81 FR 90748, Dec. 15, 2016]

§§ 80.1055-80.1059 [Reserved]
§ 80.1061 Special requirements for 406.0–406.1 MHz EPIRB stations.
     (a) Notwithstanding the provisions in paragraph (b) of this section, 406.0–406.1 MHz EPIRBs must meet all
         the technical and performance standards contained in RTCM 11000 (incorporated by reference, see §
         80.7), and must also comply with the standards specified in § 80.1101(c)(5). Beginning January 17, 2018,
         all new applications for certification of 406.0–406.1 MHz EPIRBs must demonstrate compliance with the
         requirements of RTCM 11000. 406.0–406.1 MHz EPIRBs that do not meet the requirements of RTCM
         11000 shall not be manufactured, imported, or sold in the United States beginning January 17, 2020.
         Operation of 406.0–406.1 MHz EPIRBs that do not meet the requirements of RTCM 11000 shall be
         prohibited on vessels subject to 47 CFR subparts R, S, or W beginning January 17, 2023. Existing
         406.0–406.1 MHz EPIRBs that do not meet the requirements of RTCM 11000 must be operated as
         certified.

     (b) The 406.0–406.1 EPIRB must contain as an integral part a “homing” beacon operating only on 121.500
         MHz that meets all the requirements described in the RTCM Recommended Standards document
         described in paragraph (a) of this section. The 121.500 MHz “homing” beacon must have a continuous
         duty cycle that may be interrupted during the transmission of the 406.0–406.1 MHz signal only.
         Additionally, at least 30 percent of the total power emitted during any transmission cycle must be
         contained within plus or minus 30 Hz of the carrier frequency.

     (c) Prior to submitting a certification application for a 406.0–406.1 MHz radiobeacon, the radiobeacon must
         be certified by a test facility recognized by one of the COSPAS–SARSAT Partners that the equipment
         satisfies the design characteristics associated with the measurement methods incorporated in RTCM
         Standard 11000 (incorporated by reference, see § 80.7). Additionally, the radiobeacon must be subjected
         to the environmental and operational tests associated with the test procedures described in Appendix A

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           of RTCM Standard 11000, by a test facility accepted by the U.S. Coast Guard for this purpose. Information
           regarding accepted test facilities may be obtained from Commandant (CG–ENG–4), U.S. Coast Guard
           Stop 7509, 2703 Martin Luther King Jr. Ave. SE., Washington, DC 20593–7126, http://cgmix.uscg.mil/
           EQLabs/EQLabsSearch.aspx.

           (1) After a 406.0–406.1 MHz EPIRB has been certified by the recognized test facilities the following
               information must be submitted in duplicate to typeapproval@uscg.mil or the Commandant
               (CG–ENF–4), U.S. Coast Guard Stop 7509, 2703 Martin Luther King Jr. Ave. SE., Washington, DC
               20593–7509:

                 (i)   The name of the manufacturer or grantee and model number of the EPIRB;

                (ii) Copies of the certificate and test data obtained from the test facility recognized by a COSPAS/
                     SARSAT Partner showing that the radiobeacon complies with the COSPAS–SARSAT design
                     characteristics associated with the measurement methods incorporated in RTCM 11000;

                (iii) Copies of the test report and test data obtained from the test facility recognized by the U.S.
                      Coast Guard showing that the radiobeacon complies with the U.S. Coast Guard environmental
                      and operational characteristics associated with the measurement methods described in
                      Appendix A of the RTCM Recommended Standards; and

                (iv) Instruction manuals associated with the radiobeacon, description of the test characteristics of
                     the readiobeacon including assembly drawings, electrical schematics, description of parts list,
                     specifications of materials and the manufacturer's quality assurance program.

           (2) After reviewing the information described in paragraph (c)(1) of this section the U.S. Coast Guard will
               issue a letter stating whether the radiobeacon satisfies all RTCM Recommended Standards.

     (d) A certification application for a 406.0–406.1 MHz EPIRB must also contain a copy of the U.S. Coast Guard
         letter that states the radiobeacon satisfies all RTCM Recommended Standards, a copy of the technical
         test data, and the instruction manual(s).

     (e) An identification code, recognized by the National Oceanic and Atmospheric Administration (NOAA), the
         United States Program Manager for the 406.0–406.1 MHz COSPAS/SARSAT satellite system, must be
         programmed in each EPIRB unit to establish a unique identification for each EPIRB station. With each
         marketable EPIRB unit, the manufacturer or grantee must include a postage pre-paid registration card
         printed with the EPIRB identification code addressed to: NOAA/SARSAT Beacon Registration, NSOF, E/
         SPO53, 1315 East West Hwy, Silver Spring, MD 20910–9684. The registration card must request the
         owner's name, address, telephone number, type of ship, alternate emergency contact and other
         information as required by NOAA. The registration card must also contain information regarding the
         availability to register the EPIRB at NOAA's online web-based registration database at:
         http://www.beaconregistration.noaa.gov. In addition, the following statement must be included:
         “WARNING—failure to register this EPIRB with NOAA before installation could result in a monetary
         forfeiture being issued to the owner.”

     (f) To enhance protection of life and property it is mandatory that each 406.0–406.1 MHz EPIRB be
         registered with NOAA before installation and that information be kept up-to-date. Therefore, in addition to
         the identification plate or label requirements contained in §§ 2.925 and 2.926 of this chapter, each
         406.0–406.1 MHz EPIRB must be provided on the outside with a clearly discernible permanent plate or
         label containing the following statement: “The owner of this 406.0–406.1 MHz EPIRB must register the
         NOAA identification code contained on this label with the National Oceanic and Atmospheric
         Administration (NOAA) whose address is: NOAA/SARSAT Beacon Registration, NSOF, E/SPO53, 1315 East

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           West Hwy, Silver Spring, MD 20910–9684.” Vessel owners shall advise NOAA in writing upon change of
           vessel or EPIRB ownership, transfer of EPIRB to another vessel, or any other change in registration
           information. NOAA will provide registrants with proof of registration and change of registration postcards.

     (g) For 406.0–406.1 MHz EPIRBs whose identification code can be changed after manufacture, the
         identification code shown on the plate or label must be easily replaceable using commonly available
         tools.

[68 FR 46974, Aug. 7, 2003, as amended at 69 FR 64678, Nov. 8, 2004; 73 FR 4488, Jan. 25, 2008; 76 FR 67616, Nov. 2, 2011; 79
FR 77918, Dec. 29, 2014; 81 FR 90748, Dec. 15, 2016]

Subpart W—Global Maritime Distress and Safety System (GMDSS)

                                                   GENERAL PROVISIONS

This subpart contains the rules applicable to the Global Maritime Distress and Safety System (GMDSS). Every ship
of the United States subject to part II of title III of the Communications Act or the Safety Convention must comply
with the provisions of this subpart. The rules in this subpart are to be read in conjunction with the applicable
requirements contained elsewhere in this part; however, in case of conflict, the provisions of this subpart shall
govern with respect to the GMDSS. For the purposes of this subpart, distress and safety communications include
distress, urgency, and safety calls and messages.

Source: 57 FR 9065, Mar. 16, 1992, unless otherwise noted.

           Note: No provision of this subpart is intended to eliminate, or in anyway modify, other
           requirements contained in this part with respect to part II of title III of the Communications Act.

§ 80.1065 Applicability.
     (a) The regulations contained within this subpart apply to all passenger ships regardless of size and cargo
         ships of 300 tons gross tonnage and upwards.

     (b) The requirements of this subpart do not modify the requirements for ships navigated on the Great Lakes
         or small passenger boats. The requirements contained in subpart T of this part continue to apply. The
         requirements contained in part III of title III of the Communications Act continue to apply (see subpart S
         of this part).

     (c) No provision in this subpart is intended to prevent the use by any ship, survival craft, or person in distress,
         of any means at their disposal to attract attention, make known their position and obtain help.

[57 FR 9065, Mar. 16, 1992, as amended at 60 FR 58245, Nov. 27, 1995; 60 FR 62927, Dec. 7, 1995; 73 FR 4489, Jan. 25, 2008; 88
FR 77224, Nov. 9, 2023]

§ 80.1067 Inspection of station.
     (a) Ships must have the required equipment inspected at least once every 12 months by an FCC-licensed
         technician holding a GMDSS Radio Maintainer's License. If the ship passes the inspection the technician
         will issue a Safety Certificate. Safety Certificates may be obtained from the Commission's National Call
         Center at 1–888–CALL FCC (1–888–225–5322). The effective date of the ship Safety Certificate is the
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           date the station is found to be in compliance or not later than one business day later. The FCC-licensed
           technician must use the latest FCC Information Bulletin, How to Conduct a GMDSS Inspection, which may
           be obtained at http://www.fcc.gov.

     (b) Certificates issued in accordance with the Safety Convention must be posted in a prominent and
         accessible place on the ship.

[57 FR 9065, Mar. 16, 1992, as amended at 63 FR 29660, June 1, 1998; 80 FR 53752, Sept. 8, 2015]

§ 80.1069 Maritime sea areas.
     (a) For the purpose of this subpart, a ship's area of operation is defined as follows:

           (1) Sea area A1. An area within the radiotelephone coverage of at least one VHF coast station in which
               continuous DSC alerting is available as defined by the International Maritime Organization.

           (2) Sea area A2. An area, excluding sea area A1, within the radiotelephone coverage of at least one MF
               coast station in which continuous DSC alerting is available as defined by the International Maritime
               Organization.

           (3) Sea area A3. An area, excluding sea areas A1 and A2, within the coverage of an INMARSAT
               geostationary satellite in which continuous alerting is available.

           (4) Sea area A4. An area outside sea areas A1, A2 and A3.

     (b) Maritime sea areas are delineated in the International Maritime Organization Publication GMDSS Master
         Plan of Shore-Based Facilities. The Master Plan can be purchased from the International Maritime
         Organization, 4 Albert Embankment, London SE1 7SR, United Kingdom.

§ 80.1071 Exemptions.
     (a) In certain circumstances, partial or conditional exemptions may be granted to individual ships from the
         requirements of §§ 80.1085, 80.1087, 80.1089, 80.1091, and 80.1093 provided: such ships comply with
         the functional requirements of § 80.1081 and a showing is made that such an exemption will not have a
         material effect upon the general efficiency of the service for the safety of all ships.

     (b) An exemption may be granted under paragraph (a) of this section only:

           (1) If the conditions affecting safety are such as to render the full application of §§ 80.1085, 80.1087,
               80.1089, 80.1091, and 80.1093 unreasonable or unnecessary or otherwise not in the public interest;

           (2) In exceptional circumstances, for a single voyage outside the sea area or sea areas for which the
               ship is equipped.

     (c) All fishing vessels of 300 gross tons and upward are exempt from subpart W requirements applicable for
         carriage of VHF-DSC and MF-DSC equipment until one year after the USCG establishes GMDSS coast
         facilities for Sea Areas A1 and A2, if the following provisions are met:

           (1) The ship is equipped with:

                 (i)   A VHF radiotelephone installation.

                 (ii) A MF or HF radiotelephone installation.

                (iii) A Category 1, 406.0–406.1 MHz EPIRB meeting the requirements of § 80.1061;

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                (iv) A NAVTEX receiver meeting the requirements of § 80.1101(c)(1);

                (v) Survival craft equipment meeting the requirements of § 80.1095;

                (vi) A Search and Rescue Transponder meeting the requirements of § 80.1101(c)(6); and

           (2) The ship remains within coverage of a VHF coast station and maintains a continuous watch on VHF
               Channel 16; or

           (3) The vessel remains within coverage of an MF coast station and maintains a continuous watch on
               2182 kHz and VHF Channel 16.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46975, Aug. 7, 2003; 73 FR 4489, Jan. 25, 2008]

§ 80.1073 Radio operator requirements for ship stations.
     (a) Ships must carry at least two persons holding GMDSS Radio Operator's Licenses as specified in § 13.7 of
         this chapter for distress and safety radiocommunications purposes. The GMDSS Radio Operator's License
         qualifies personnel as a GMDSS radio operator for the purposes of operating a GMDSS radio installation,
         including basic equipment adjustments as denoted in the knowledge requirements specified in § 13.203
         of this chapter.

           (1) A qualified GMDSS radio operator must be designated to have primary responsibility for
               radiocommunications during distress incidents, except if the vessel operates exclusively within
               twenty nautical miles of shore, in which case a qualified restricted radio operator may be so
               designated.

           (2) A second qualified GMDSS radio operator must be designated as backup for distress and safety
               radiocommunications, except if the vessel operates exclusively within twenty nautical miles of shore,
               in which case a qualified restricted GMDSS radio operator may be so designated.

     (b) A qualified GMDSS radio operator, and a qualified backup, as specified in paragraph (a) of this section
         must be:

           (1) Available to act as the dedicated radio operator in cases of distress as described in § 80.1109(a);

           (2) Designated to perform as part of normal routine each of the applicable communications described in
               § 80.1109(b);

           (3) Responsible for selecting HF DSC guard channels and receiving scheduled maritime safety
               information broadcasts;

           (4) Designated to perform communications described in § 80.1109(c);

           (5) Responsible for ensuring that the watches required by § 80.1123 are properly maintained; and

           (6) Responsible for ensuring that the ship's navigation position is entered into all installed DSC
               equipment, either automatically through a connected or integral navigation receiver, or manually at
               least every four hours when the ship is underway.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46975, Aug. 7, 2003; 73 FR 4489, Jan. 25, 2008]

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                                                                                                                47 CFR 80.1074
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§ 80.1074 Radio maintenance personnel for at-sea maintenance.
     (a) Ships that elect the at-sea option for maintenance of GMDSS equipment (see § 80.1105) must carry at
         least one person who qualifies as a GMDSS radio maintainer, as specified in paragraph (b) of this section,
         for the maintenance and repair of equipment specified in this subpart. This person may be, but need not
         be, the person designated as GMDSS radio operator as specified in § 80.1073.

     (b) The following licenses qualify personnel as GMDSS radio maintainers to perform at-sea maintenance of
         equipment specified in this subpart. For the purposes of this subpart, no order is intended by this listing or
         the alphanumeric designator.

             (1) DM: GMDSS Maintainer's License;

             (2) DB: GMDSS Operator's/Maintainer's License.

     (c) While at sea, all adjustments of radio installations, servicing, or maintenance of such installations that
         may affect the proper operation of the GMDSS station must be performed by, or under the immediate
         supervision and responsibility of, a qualified GMDSS radio maintainer as specified in paragraph (b) of this
         section.

     (d) The GMDSS radio maintainer must possess the knowledge covering the requirements set forth in IMO
         Assembly on Training for Radio Personnel (GMDSS), Annex 5 and IMO Assembly on Radio Maintenance
         Guidelines for the Global Maritime Distress and Safety System related to Sea Areas A3 and A4.

[57 FR 9065, Mar. 16, 1992, as amended at 63 FR 49872, Sept. 18, 1998; 68 FR 46976, Aug. 7, 2003; 76 FR 67616, Nov. 2, 2011]

§ 80.1075 Radio records.
A record must be kept, as required by the Radio Regulations and § 80.409 (a), (b) and (e), of all incidents connected
with the radiocommunication service which appear to be of importance to safety of life at sea.

§ 80.1077 Frequencies.
The following table describes the frequencies used in the Global Maritime Distress and Safety System:

 Alerting:
    406.0–406.1 EPIRBs                         406.0–406.1 MHz (Earth-to-space).
                                               1544–1545 MHz (space-to-Earth).
    INMARSAT Ship Earth Stations capable       1626.5–1645.5 MHz (Earth-to-space).
    of voice and/or direct printing
    VHF DSC Ch. 70                             156.525 MHz.1
    MF/HF DSC2                                 2187.5 kHz3, 4207.5 kHz, 6312 kHz, 8414.5 kHz, 12577 kHz,
                                               and 16804.5 kHz.
 On-scene communications:
    VHF Ch.16                                  156.8 MHz.
    MF Radiotelephony                          2182 kHz.
    NBDP                                       2174.5 kHz.
 Communications involving aircraft:
    On-scene, including search and rescue      156.8 MHz4, 121.5 MHz5, 123.1 MHz, 156.3 MHz, 2182 kHz,

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                                              3023 kHz, 4125 kHz, and 5680 kHz.6
 Locating signals:
      406–406.1 EPIRB Beacons                 121.5 MHz.
      9 GHz radar transponders                9200–9500 MHz.
 Maritime safety information (MSI):
      International NAVTEX                    518 kHz.7
      Warnings                                490 kHz, 4209.5 kHz.
      NBDP                                    4210 kHz, 6314 kHz, 8416.5 kHz, 12579 kHz, 16806.5 kHz,
                                              19680.5 kHz, 22376 kHz, 26100.5 kHz.
      Satellite                               1530–1545 MHz.10
 General distress and safety communications
 and calling:
      Satellite                               1530–1544 MHz (space-to-Earth) and 1626.5–1645.5 MHz
                                              (Earth-to-space).10
      Radiotelephony                          2182 kHz, 4125 kHz, 6215 kHz, 8291 kHz, 12290 kHz,
                                              16420 kHz, and 156.8 MHz.
      NBDP                                    2174.5 kHz, 4177.5 kHz, 6268 kHz, 8376.5 kHz, 12520 kHz,
                                              and 16695 kHz.
      DSC                                     2187.5 kHz, 4207.5 kHz, 6312 kHz, 8414.5 kHz, 12577 kHz,
                                              16804.5 kHz, and 156.525 MHz.
 Survival craft:
      VHF radiotelephony                      156.8 MHz and one other 156–174 MHz frequency
      9 GHz radar transponders                9200–9500 MHz.

1
  Frequency 156.525 MHz can be used for ship-to-ship alerting and, if within sea area A1, for ship-
to-shore alerting.

2For ships equipped with MF/HF equipment, there is a watch requirement on 2187.5 kHz, 8414.5
kHz, and one other frequency.

3
 Frequency 2187.5 kHz can be used for ship-to-ship alerting and, if within sea area A2, for ship-to-
shore alerting.

4   Frequency 156.8 MHz may also be used by aircraft for safety purposes only.

5   Frequency 121.5 MHz may be used by ships for aeronautical distress and urgency purposes.

6 The priority of use for ship-aircraft communications is 4125 kHz, then 3023 kHz. Additionally,
frequencies 123.1 MHz, 3023 kHz and 5680 kHz can be used by land stations engaged in
coordinated search and rescue operations.

7The international NAVTEX frequency 518 kHz is the primary frequency for receiving maritime
safety information. The other frequencies are used only to augment the coverage or information
provided on 518 kHz.

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                                                                                                           47 CFR 80.1081
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8   [Reserved]

9   [Reserved]

10In addition to EPIRBs, 1544–1545 MHz can be used for narrowband distress and safety
operations and 1645.5–1646.5 MHz can be used for relay of distress alerts between satellites.
Feeder links for satellite communications are assigned from the fixed satellite service, see 47 CFR
§ 2.106.

11   [Reserved]

[69 FR 64678, Nov. 8, 2004, as amended at 73 FR 4489, Jan. 25, 2008; 76 FR 67616, Nov. 2, 2011]

                                    EQUIPMENT REQUIREMENTS FOR SHIP STATIONS

§ 80.1081 Functional requirements.
Ships, while at sea, must be capable:

       (a) Except as provided in §§ 80.1087(a)(1) and 80.1091(a)(4)(iii), of transmitting ship-to-shore distress alerts
           by at least two separate and independent means, each using a different radiocommunication service;

       (b) Of receiving shore-to-ship distress alerts;

       (c) Of transmitting and receiving ship-to-ship distress alerts;

       (d) Of transmitting and receiving search and rescue co-ordinating communications;

       (e) Of transmitting and receiving on-scene communications;

       (f) Of transmitting and receiving signals for locating;

       (g) Of transmitting and receiving maritime safety information;

       (h) Of transmitting and receiving general radiocommunications to and from shore-based radio sytsems or
           networks; and

       (i)   Of transmitting and receiving bridge-to-bridge communications.

§ 80.1083 Ship radio installations.
       (a) Ships must be provided with radio installations capable of complying with the functional requirements
           prescribed by § 80.1081 throughout its intended voyage and, unless exempted under § 80.1071,
           complying with the requirements of § 80.1085 and, as appropriate for the sea area of areas through which
           it will pass during its intended voyage, the requirements of either § 80.1087, § 80.1089, § 80.1091, or §
           80.1093.

       (b) The radio installation must:

             (1) Be so located that no harmful interference of mechanical, electrical or other origin affects its proper
                 use, and so as to ensure electromagnetic compatibility and avoidance of harmful interaction with
                 other equipment and systems;

             (2) Be so located as to ensure the greatest possible degree of safety and operational availability;
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           (3) Be protected against harmful effects of water, extremes of temperature and other adverse
               environmental conditions;

           (4) Be provided with reliable, permanently arranged electrical lighting, independent of the main and
               emergency sources of electrical power, for the adequate illumination of the radio controls for
               operating the radio installation; and

           (5) Be clearly marked with the call sign, the ship station identity and other codes as applicable for the
               use of the radio installation.

     (c) Control of the VHF radiotelephone channels required for navigational safety must be immediately
         available on the navigating bridge convenient to the conning position and, where necessary, facilities
         should be available to permit radiocommunications from the wings of the navigating bridge. Portable VHF
         equipment may be used to meet the latter provision.

     (d) Shipborne Integrated Radiocommunication System (IRCS) may be utilized to integrate all GMDSS
         equipment into a standard operator's console. Such installation must be certified in accordance with §
         80.1103 and meet the requirements of IMO Resolution A.811(19) (incorporated by reference, see § 80.7).

     (e) In passenger ships, a distress panel shall be installed at the conning position. This panel shall contain
         either one single button which, when pressed, initiates a distress alert using all radiocommunications
         installations required on board for that purpose or one button for each individual installation. The panel
         shall clearly and visually indicate whenever any button or buttons have been pressed. Means shall be
         provided to prevent inadvertent activation of the button or buttons. If the satellite EPIRB is used as the
         secondary means of distress alerting and is not remotely activated, it shall be acceptable to have an
         additional EPIRB installed in the wheelhouse near the conning position.

     (f) In passenger ships, information on the ship's position shall be continuously and automatically provided to
         all relevant radiocommunications equipment to be included in the initial distress alert when the button or
         buttons on the distress panel is pressed.

     (g) In passenger ships, a distress alarm panel shall be installed at the conning position. The distress alarm
         panel shall provide visual and aural indication of any distress alert or alerts received on board and shall
         also indicate through which radiocommunication service the distress alerts have been received.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46976, Aug. 7, 2003; 69 FR 64679, Nov. 8, 2004; 73 FR 4489, Jan. 25, 2008; 76
FR 67616, Nov. 2, 2011]

§ 80.1085 Ship radio equipment—General.
This section contains the general equipment requirements for all ships subject to this subpart.

     (a) Ships must be provided with:

           (1) A VHF radio installation capable of transmitting and receiving:

                 (i)   DSC on the frequency 156.525 MHz (channel 70), and it must be able to initiate the
                       transmission of distress alerts on channel 70 from the position from which the ship is normally
                       navigated; and

                (ii) Radiotelephony on the frequencies 156.300 MHz (channel 6), 156.650 MHz (channel 13), and
                     156.800 MHz (channel 16);

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           (2) A dedicated, non-scanning radio installation capable of maintaining a continuous DSC watch on VHF
               channel 70 which may be separate from, or combined with, that required by paragraph (a)(1)(i) of
               this section;

           (3) A radar transponder capable of operating in the 9 GHz band or an AIS–SART, which must be stowed
               so that it is easily utilized (this device may be one of those required by § 80.1095(b) for a survival
               craft);

           (4) A receiver capable of receiving international NAVTEX service broadcasts;

           (5) If the ship is engaged on voyages in any area of INMARSAT coverage in which an international
               NAVTEX service is not provided, a radio facility for reception of maritime safety information by the
               INMARSAT enhanced group calling system, i.e., SafetyNet, (this requirement does not apply to ships
               engaged exclusively on voyages in areas where an HF direct-printing telegraphy maritime safety
               information service, as identified by the IMO GMDSS Master Plan Publication, is provided and the
               ship is fitted with equipment capable of receiving such service); and

           (6) A satellite emergency position-indicating radio beacon (satellite EPIRB) which must be:

                 (i)   Capable of transmitting a distress alert through the polar orbiting satellite service operating in
                       the 406.0–406.1 MHz band (406.0–406.1 MHz EPIRB); and

                (ii) Installed in an easily accessible position, ready to be manually released and capable of being
                     carried by one person into a survival craft, capable of floating free if the ship sinks and of being
                     automatically activated when afloat, and capable of being activated manually.

                (iii) Examined and tested annually in accordance with the IMO standard, IMO Circular MSC/
                      Circ.1040 (incorporated by reference, see § 80.7). See § 80.1105(k).

     (b) Ships must carry either the most recent edition of the IMO publication entitled GMDSS Master Plan of
         Shore-Based Facilities, the U.S. NGA Publication 117, or the Admiralty List of Radio Signals Volume 5
         Global Maritime Distress and Safety System. Notice of new editions will be published on the
         Commission's Wireless Telecommunications Bureau Web page under “Marine Services” and information
         will be provided about obtaining the new document.

     (c) All GMDSS equipment capable of transmitting an automatic distress alert which includes position of the
         ship must have either an integral navigation receiver or capability of being connected to an external
         navigation receiver. If an external navigation receiver is installed, it shall be connected to all of the alerting
         devices referred to in paragraph (a) of this section. If there is no navigation receiver, the position must be
         entered manually for each alerting device at least once every 4 hours (at the change of the navigation
         watch).

     (d) Every passenger ship shall be provided with means for two-way on-scene radiocommunications for
         search and rescue purposes using the aeronautical frequencies 121.5 and 123.1 MHz from the position
         from which the ship is normally navigated.

[57 FR 9065, Mar. 16, 1992, as amended at 60 FR 50122, Sept. 28, 1995; 68 FR 46977, Aug. 7, 2003; 69 FR 64679, Nov. 8, 2004; 73
FR 4489, Jan. 25, 2008; 76 FR 67616, Nov. 2, 2011; 78 FR 23158, Apr. 18, 2013; 81 FR 90748, Dec. 15, 2016]

§ 80.1087 Ship radio equipment—Sea area A1.
This section contains the additional equipment requirements for ships that remain within sea area A1 at all times.

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     (a) In addition to meeting the requirements of § 80.1085, ships engaged on voyages exclusively in sea area
         A1 must be provided with a radio installation capable of initiating the transmission of ship-to-shore
         distress alerts from the position from which the ship is normally navigated, operating either:

           (1) On VHF using DSC; or

           (2) Through the polar orbiting satellite service on 406.0–406.1 MHz (this requirement may be fulfilled by
               the EPIRB required by § 80.1085(a)(6), either by installing the EPIRB close to, or by allowing remote
               activation from, the position from which the ship is normally navigated); or

           (3) On MF using DSC if the ship is engaged on voyages within coverage of MF coast stations equipped
               with DSC; or

           (4) On HF using DSC; or

           (5) Through the INMARSAT geostationary satellite service if within INMARSAT coverage. This
               requirement may be fulfilled by an INMARSAT ship earth station capable of two way communication.

     (b) The VHF radio installation, required by § 80.1085(a)(1), must also be capable of transmitting and receiving
         general radiocommunications using radiotelephony.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46977, Aug. 7, 2003; 69 FR 64680, Nov. 8, 2004; 73 FR 4490, Jan. 25, 2008; 76
FR 67617, Nov. 2, 2011]

§ 80.1089 Ship radio equipment—Sea areas A1 and A2.
This section contains the additional equipment requirements for ships that remain within sea areas A1 or A2 at all
times. Ships fitting in accordance with this section satisfy the sea area A1 requirements denoted in § 80.1087.

     (a) In addition to meeting the requirements of § 80.1085, ships engaged on voyages beyond sea area A1, but
         remaining within sea area A2, must be provided with:

           (1) An MF radio installation capable of transmitting and receiving, for distress and safety purposes, on
               the frequencies:

                 (i)   2187.5 kHz using DSC; and

                (ii) 2182 kHz using radiotelephony;

           (2) A radio installation capable of maintaining a continuous DSC watch on the frequency 2187.5 kHz
               which may be separate from or combined with, that required by paragraph (a)(1)(i) of this section;
               and

           (3) Means of initiating the transmission of ship-to-shore distress alerts by a radio service other than MF
               operating either:

                 (i)   Through the polar orbiting satellite service on 406.0–406.1 MHz (this requirement may be
                       fulfilled by the EPIRB required by § 80.1085(a)(6), either by installing the EPIRB close to, or by
                       allowing remote activation from, the position from which the ship is normally navigated); or

                (ii) On HF using DSC; or

                (iii) Through the INMARSAT geostationary satellite service if within INMARSAT coverage; this
                      requirement may be fulfilled by an INMARSAT ship earth station.

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     (b) It must be possible to initiate transmission of distress alerts by the radio installations specified in
         paragraphs (a)(1) and (a)(3) of this section from the position from which the ship is normally navigated.

     (c) Ships subject to this section must be capable of transmitting and receiving general radiocommunications
         using radiotelephony or direct-printing telegraphy by either:

           (1) A radio installation operating on working frequencies in the bands between 1605–4000 kHz or
               between 4000–27500 kHz (this requirement may be fulfilled by the addition of this capability to the
               equipment required by paragraph (a)(1) of this section); or

           (2) An INMARSAT ship earth station.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46977, Aug. 7, 2003; 69 FR 64680, Nov. 8, 2004; 73 FR 4490, Jan. 25, 2008; 76
FR 67617, Nov. 2, 2011]

§ 80.1091 Ship radio equipment—Sea areas A1, A2, and A3.
This section contains the additional equipment requirements for ships that remain within sea areas A1, A2, or A3 at
all times. Ships fitting in accordance with this section satisfy the requirements denoted in § 80.1087 or § 80.1089
for sea-areas A1 and A2. Ships fitting in accordance to this section have the option to comply with either the
requirements of paragraph (a) or (b) of this section.

     (a) In addition to meeting the requirements of § 80.1085, ships subject to this section must be provided with:

           (1) An INMARSAT ship earth station capable of:

                 (i)   Transmitting and receiving distress and safety data communications;

                (ii) Initiating and receiving distress priority calls;

                (iii) Maintaining watch for shore-to-ship distress alert, including those directed to specifically
                      defined geographical areas;

                (iv) Transmitting and receiving general radiocommunications, using either radiotelephony or direct-
                     printing telegraphy; and

           (2) An MF radio installation capable of transmitting and receiving, for distress and safety purposes, on
               the frequencies:

                 (i)   2187.5 kHz using DSC; and

                (ii) 2182 kHz using radiotelephony; and

           (3) A radio installation capable of maintaining a continuous DSC watch on the frequency 2187.5 kHz
               which may be separate from or combined with that required by paragraph (a)(2)(i) of this section;
               and

           (4) Means of initiating the transmission of ship-to-shore distress alerts by a radio service operating
               either:

                 (i)   Through the polar orbiting satellite service on 406.0–406.1 MHz (this requirement may be
                       fulfilled by the EPIRB required by § 80.1085(a)(6), either by installing the EPIRB close to, or by
                       allowing remote activation from, the position from which the ship is normally navigated); or

                (ii) On HF using DSC: or

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                (iii) Through the INMARSAT geostationary satellite service, by an additional ship earth station.

                       Note to paragraph (a)(4)(iii): For ships subject to this subpart, sailing only in domestic
                       waters, alternative satellite system fitting may be considered. However, the satellite
                       system fitted must comply with all features of the INMARSAT system for its intended
                       function. These are shown in IMO Resolution A.801(19) and in IMO Resolution
                       A.1001(25) (both incorporated by reference, see § 80.7). In any case, the alternative
                       satellite system must provide continuous coverage for all sea areas in which the ship
                       intends to sail.

     (b) In addition to meeting the requirements of § 80.1085, ships subject to this section must be provided with:

           (1) An MF/HF radio installation capable of transmitting and receiving on all distress and safety
               frequencies in the bands between 1605–27500 kHz using DSC, radiotelephony, and narrow-band
               direct-printing telegraphy; and

           (2) Equipment capable of maintaining DSC watch on 2187.5 kHz, 8414.5 kHz and on at least one of the
               distress and safety DSC frequencies 4207.5 kHz, 6312 kHz, 12577 kHz, or 16804.5 kHz although it
               must be possible to select any of these DSC distress and safety frequencies at any time (this
               equipment may be separate from, or combined with, the equipment required by paragraph (b)(1) of
               this section); and

           (3) Means of initiating the transmission of ship-to-shore distress alerts by a radiocommunication service
               other than HF operating either:

                 (i)   Through the polar orbiting satellite service on 406.0–406.1 MHz (this requirement may be
                       fulfilled by the 406.0–406.1 MHz EPIRB required by § 80.1085(a)(6), either by installing the
                       406.0–406.1 MHz EPIRB close to, or by allowing remote activation from, the position from
                       which the ship is normally navigated); or

                (ii) Through the INMARSAT geostationary satellite service (this requirement may be fulfilled by an
                     INMARSAT ship earth station).

           (4) In addition, ships must be capable of transmitting and receiving general radiocommunications using
               radiotelephony or direct-printing telegraphy by an MF/HF radio installation operating on working
               frequencies in the bands between 1605–4000 kHz and between 4000–27500 kHz (this requirement
               may be fulfilled by the addition of this capability to the equipment required by paragraph (b)(1) of
               this section).

     (c) It must be possible to initiate transmission of distress alerts by the radio installations specified in
         paragraphs (a)(1), (a)(2), (a)(4), (b)(1), and (b)(3) of this section from the position from which the ship is
         normally navigated.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46977, Aug. 7, 2003; 69 FR 64680, Nov. 8, 2004; 73 FR 4490, Jan. 25, 2008; 76
FR 67617, Nov. 2, 2011]

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                                                                                                          47 CFR 80.1093
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§ 80.1093 Ship radio equipment—Sea areas A1, A2, A3, and A4.
This section contains the additional equipment requirements for ships that sail in all sea areas, i.e., sea areas A1,
A2, A3, and A4. Ships fitting in accordance with this section satisfy the requirements denoted in §§ 80.1087,
80.1089, and 80.1091 for sea areas A1, A2, and A3.

     (a) In addition to meeting the requirements of § 80.1085 of this part, ships engaged on voyages in all sea
         areas must be provided with the radio installations and equipment required by § 80.1091(b), except that
         the equipment required by § 80.1091(b)(3)(ii) and § 80.1091(b)(3)(iii) cannot be accepted as an
         alternative to that required by § 80.1091(b)(3)(i), which must always be provided.

     (b) Ships engaged on voyages in all sea areas also must comply with the requirements of § 80.1091(c).

[57 FR 9065, Mar. 16, 1992, as amended at 69 FR 64680, Nov. 8, 2004]

§ 80.1095 Survival craft equipment.
     (a) At least three two-way VHF radiotelephone apparatus must be provided on every passenger ship and on
         every cargo ship of 500 tons gross tonnage and upwards. At least two two-way VHF radiotelephone
         apparatus must be provided on every cargo ship of between 300–500 tons gross tonnage. Portable two-
         way VHF radiotelephones must be stowed in such locations that they can be rapidly placed in any survival
         craft other than life rafts required by Regulation III/26.1.4 of the SOLAS Convention. (The SOLAS
         Convention can be purchased from International Maritime Organization (IMO), Publications, International
         Maritime Organization, 4 Albert Embankment, London SE1 7SR, United Kingdom; telephone 011 44 71 735
         7611, www.imo.org.) Alternatively, survival craft may be fitted with a fixed two-way VHF radiotelephone
         installation. Two-way VHF radiotelephone apparatus, portable or fixed, must conform to performance
         standards as specified in § 80.1101.

     (b) At least one radar transponder or AIS–SART (collectively, “search and rescue locating devices”) must be
         carried on each side of every passenger ship and every cargo ship of 500 tons gross tonnage and
         upwards. At least one search and rescue locating device must be carried on every cargo ship of 300 tons
         gross tonnage and upwards but less than 500 tons gross tonnage. Such search and rescue locating
         devices must conform to performance standards as specified in § 80.233 for AIS–SARTs or § 80.1101 for
         radar transponders. The search and rescue locating devices must be stowed in such locations that they
         can be rapidly placed in any survival craft other than liferafts required on cargo ships in forward and aft
         areas (see Regulation III/26.1.4 of the SOLAS Convention). Alternatively, one search and rescue locating
         device must be stowed in each survival craft other than those required by Regulation III/26.1.4 of the
         SOLAS Convention. One of these search and rescue locating devices may be the search and rescue
         locating device required by § 80.1085(a)(3).

     (c) Survival craft equipment must be tested at intervals not to exceed twelve months. For batteries used for
         survival craft equipment, the month and year of its manufacture must be permanently marked on the
         battery. Also, the month and year upon which 50 percent of its useful life will expire must be permanently
         marked on both the battery and the outside of the transmitter. Batteries must be replaced if 50 percent of
         their useful life has expired or if the transmitter has been used in an emergency situation.

[57 FR 9065, Mar. 16, 1992, as amended at 73 FR 4490, Jan. 25, 2008; 81 FR 90748, Dec. 15, 2016]

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                                                                                                         47 CFR 80.1099
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§ 80.1099 Ship sources of energy.
     (a) There must be available at all times, while the ship is at sea, a supply of electrical energy sufficient to
         operate the radio installations and to charge any batteries used as part of a reserve source of energy for
         the radio installations.

     (b) A reserve source of energy to supply radio installations must be provided on every ship for the purpose of
         conducting distress and safety radiocommunications, in the event of failure of the ship's main and
         emergency sources of electrical power. The reserve sources of energy must be capable of simultaneously
         operating the VHF radio installation required by § 80.1085(a)(1) and, as appropriate for the sea area or
         sea areas for which the ship is equipped, either the MF radio installation required by § 80.1089(a)(1), the
         MF/HF radio installation required by § 80.1091(a)(2)(i) or § 80.1093(a), or the INMARSAT ship earth
         station required by § 80.1091(a)(1) and any of the additional loads mentioned in paragraphs (d), (e) and
         (h) of this section for a period of at least:

           (1) One hour, on ships constructed on or after February 1, 1995;

           (2) One hour, on ships constructed before February 1, 1995, if the emergency source of electrical power
               complies fully with all relevant requirements of SOLAS, Chapter II–1, Regulation 42 or 43 (as
               amended); or

           (3) Six hours, on ships constructed before February 1, 1995, and on cargo ships of less than 500 tons
               gross tonnage, if the emergency source of electrical power is not provided or does not comply fully
               with all relevant requirements of SOLAS, Chapter II–1, Regulation 42 or 43 (as amended).

     (c) The reserve sources of energy need not supply independent HF and MF radio installations at the same
         time. The reserve sources of energy must be independent of the propelling power of the ship and the
         ship's electrical system.

     (d) Where, in addition to the VHF radio installation, two or more of the other radio installations, referred to in
         paragraph (b) of this section, can be connected to the reserve sources of energy, they must be capable of
         simultaneously supplying, for one hour, as specified in paragraph (b) of this section, the VHF radio
         installation and;

           (1) All other radio installations which can be connected to the reserve sources of energy at the same
               time; or

           (2) Whichever of the other radio installations will consume the most power, if only one of the other radio
               installations can be connected to the reserve sources of energy at the same time as the VHF radio
               installation.

     (e) The reserve sources of energy may be used to supply the electrical lighting required by § 80.1083(b)(4).

     (f) Where a reserve source of energy consists of a rechargeable accumulator battery or batteries:

           (1) A means of automatically charging such batteries must be provided which must be capable of
               recharging them to minimum capacity requirements within 10 hours; and

           (2) Battery charge levels should be checked at intervals of 30 days or less with equipment turned ON
               and the battery charger turned OFF. Portable equipment with primary batteries such as EPIRBs and
               SARTs should be checked at the same intervals using methods recommended by the manufacturer.
               The results of battery checks should be recorded in the radio log.

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     (g) The accumulator batteries which provide a reserve source of energy must be installed to ensure: The
         highest degree of service, a reasonable lifetime, reasonable safety; that the battery temperatures remain
         within the manufacturer's specifications whether under charge or idle; and that when fully charged, the
         batteries will provide at least the minimum required hours of operation under all weather conditions.

     (h) If an uninterrupted input of information from the ship's navigational or other equipment to a radio
         installation required by this subpart (including the navigational receiver referred to in SOLAS Chapter IV,
         Regulation 18) is needed to ensure its proper performance, means must be provided to ensure the
         continuous supply of such information in the event of failure of the ship's main or emergency source of
         electrical power.

     (i)   An uninterruptible power supply or other means of ensuring a continuous supply of electrical power, within
           equipment tolerances, shall be provided to all GMDSS equipment that could be affected by normal
           variations and interruptions of ship's power.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46977, Aug. 7, 2003]

§ 80.1101 Performance standards.
     (a) The abbreviations used in this section are as follows:

           (1) International Maritime Organization (IMO).

           (2) International Telecommunication Union—Telecommunication Standardization Bureau (ITU-T)
               (Standards formerly designated as CCITT are now designated as ITU-T.)

           (3) International Electrotechnical Commission (IEC).

           (4) International Organization for Standardization (ISO).

           (5) International Telecommunication Union—Radiocommunication Bureau (ITU-R) (Standards formerly
               designated as CCIR are now designated as ITU-R.)

     (b) All equipment specified in this subpart must meet the general requirements for shipboard equipment in
         conformity with performance specifications listed in this paragraph, which are incorporated by reference.
         (See § 80.7).

           (1) IMO Resolution A.694(17), as revised by IMO Resolution MSC.149(77)

           (2) ITU–T E.161.

           (3) ITU–T E.164.1.

           (4) IEC 60092–101.

           (5) IEC 60533.

           (6) IEC 60945.

           (7) ISO Standard 3791.

     (c) The equipment specified in this subpart must also conform to the appropriate performance standards
         listed in paragraphs (c)(1) through (12) of this section, which are incorporated by reference (see § 80.7),
         and must be tested in accordance with the applicable IEC testing standards listed in paragraph (c)(13) of
         this section, which are also incorporated by reference. (See § 80.7).

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                                                                                                47 CFR 80.1101(c)(1)
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           (1) NAVTEX receivers:

                 (i)   IMO Resolution A.525(13), as revised by IMO Maritime Safety Committee (MSC) Resolution
                       MSC.148(77).

                (ii) ITU–R M.540–2.

           (2) VHF radio equipment:

                 (i)   IMO Resolution A.803(19), as amended by IMO Resolution MSC.68(68).

                (ii) ITU–R M.493–13.

                (iii) ITU–R M.541–9.

           (3) MF radio equipment:

                 (i)   IMO Resolution A.804(19), as amended by IMO Resolution MSC.68(68).

                (ii) ITU–R M.493–13.

                (iii) ITU–R M.541–9.

           (4) MF/HF radio equipment:

                 (i)   IMO Resolution A.806(19), as amended by IMO Resolution MSC.68(68).

                (ii) ITU–R M.493–13.

                (iii) ITU–R M.541–9.

                (iv) IMO Resolution A.700(17).

           (5) 406.0–406.1 MHz EPIRBs:

                 (i)   IMO Resolution A.810(19), as amended by IMO Resolution MSC.56(66) and IMO Resolution
                       MSC.120(74).

                (ii) IMO Resolution A.662(16).

                (iii) ITU–R M.633–3.

                (iv) The 406.0–406.1 MHz EPIRBs must also comply with § 80.1061.

           (6) 9 GHz radar transponders:

                 (i)   IMO Resolution A.802(19), as amended by IMO Resolution MSC.247(83).

                (ii) ITU–R M.628–4.

           (7) Two-Way VHF radiotelephone:

                 (i)   IMO Resolution A.809(19), as revised by IMO Resolution MSC.149(77).

                (ii) IMO Resolution MSC.80(70).

           (8) INMARSAT Ship Earth Station Capable of Two-Way Communications: IMO Resolution A.808(19).

           (9) INMARSAT–C SES: IMO Resolution A.807(19), as amended by IMO Resolution MSC.68(68).

          (10) INMARSAT EGC: IMO Resolution A.664(16).

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          (11) Shipboard radar:

                 (i)   IEC 60945.

                (ii) IEC 62388 Edition 1.0 (2007–12).

                (iii) IMO Resolution A.694(17).

                (iv) IMO Resolution MSC.191(79).

                (v) IMO Resolution MSC.192(79).

                (vi) ITU–R M.1177–3.

          (12) Automatic Identification Systems (AIS):

                 (i)   ITU–R M.1371–3.

                (ii) IMO Resolution MSC.74(69).

                (iii) IEC 61162–1.

                (iv) IEC 61993–2 .

          (13) Standards for testing GMDSS equipment:

                 (i)   IEC 61097–1.

                (ii) IEC 61097–3.

                (iii) IEC 61097–4.

                (iv) IEC 61097–6.

                (v) IEC 61097–7.

                (vi) IEC 61097–8.

                (vii) IEC 61097–9.

                (viii) IEC 61097–10.

                (ix) IEC 61097–12.

                (x) IEC 61097–13.

[68 FR 46977, Aug. 7, 2003, as amended at 69 FR 64680, Nov. 8, 2004; 73 FR 4490, Jan. 25, 2008; 74 FR 5125, Jan. 29, 2009; 76
FR 67617, Nov. 2, 2011]

§ 80.1103 Equipment authorization.
     (a) All equipment specified in § 80.1101 must be certified in accordance with subpart J of part 2 of this
         chapter specifically for GMDSS use, except for equipment used in the INMARSAT space segment which
         must be type-approved by INMARSAT and are subject to Supplier's Declaration of Conformity pursuant to
         the procedures in subpart J of part 2 of this chapter specifically for GMDSS use. The technical parameters
         of the equipment must conform to the performance standards as specified in § 80.1101. For emergency
         position-indicating radiobeacons operating on 406.0–406.1 MHz (406.0–406.1 MHz EPIRBs) that were

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           authorized prior to April 15, 1992, and meet the requirements of § 80.1101, the manufacturer may attest
           by letter that the equipment (indicate FCC ID#) meets the requirements of § 80.1101 and request that it
           be denoted as approved for GMDSS use.

     (b) Applicants for certification must submit with their applications measurement data sufficiently complete to
         ensure compliance with the technical parameters. The application must include the items listed in 47 CFR
         2.1033. Additional measurement data or information may be requested depending upon the equipment.
         For items not listed in § 2.1033 of this chapter, the applicant must attest that the equipment complies
         with performance standards as specified in § 80.1101 and, where applicable, that measurements have
         been made that demonstrate the necessary compliance. Submission of representative data
         demonstrating compliance is not required unless requested by the Commission.

     (c) Applicants using Supplier's Declaration of Conformity must attest that the equipment complies with
         performance standards as specified in § 80.1101 and, where applicable, that measurements have been
         made that demonstrate the necessary compliance. Submission of representative data demonstrating
         compliance is not required unless requested by the Commission. An application must include the items
         listed in §§ 2.931 and 2.938 of this chapter and a copy of the type-approval certification indicating that
         equipment meets GMDSS standards and includes all peripheral equipment associated with the specific
         unit under review.

           Note 1 to paragraph (c): The verification procedure has been replaced by Supplier's Declaration of
           Conformity. Equipment previously authorized under subpart J of part 2 of this chapter may remain
           in use. See § 2.950 of this chapter.

     (d) Submission of a sample unit is not required unless specifically requested by the Commission.

     (e) In addition to the requirements in part 2 of this chapter, equipment specified in § 80.1101 shall be labeled
         as follows: “This device complies with the GMDSS provisions of part 80 of the FCC rules.” Such a label is
         not required for emergency position-indicating radiobeacons operating on 406.0–406.1 MHz
         (406.0–406.1 MHz EPIRBs) that were authorized prior to April 15, 1992.

[57 FR 9065, Mar. 16, 1992, as amended at 57 FR 44702, Sept. 29, 1992; 63 FR 36607, July 7, 1998; 68 FR 46980, Aug. 7, 2003; 69
FR 64680, Nov. 8, 2004; 73 FR 4491, Jan. 25, 2008; 82 FR 50837, Nov. 2, 2017]

§ 80.1105 Maintenance requirements.
     (a) Equipment must be so designed that the main units can be replaced readily, without elaborate
         recalibration or readjustment. Where applicable, equipment must be constructed and installed so that it is
         readily accessible for inspection and on-board maintenance purposes. Adequate information must be
         provided to enable the equipment to be properly operated and maintained (see IMO Resolution
         A.569(14)).

     (b) Radio equipment required by this subpart must be maintained to provide the availability of the functional
         requirements specified in § 80.1081 and to meet the performance standards specified in § 80.1101.

     (c) On ships engaged on voyages in sea areas A1 and A2, the availability must be ensured by duplication of
         equipment, shore-based maintenance, or at-sea electronic maintenance capability, or a combination of
         these.

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     (d) On ships engaged on voyages in sea areas A3 and A4, the availability must be ensured by using a
         combination of at least two of the following methods: duplication of equipment, shore-based
         maintenance, or at-sea electronic maintenance capability.

     (e) Irrespective of the maintenance methods used, a ship must not depart from any port unless and until the
         ship is capable of performing all distress and safety functions as specified in § 80.1081.

     (f) Irrespective of the maintenance methods used, all manufacturers' instruction manuals and maintenance
         manuals for each piece of equipment required and installed must be available on-board ship. Adequate
         tools, spare parts, and test equipment appropriate to the methods used by the ship as recommended by
         the manufacturer should be provided. The manuals, tools, spare parts, and test equipment, as applicable,
         should be readily accessible.

     (g) If the duplication of equipment maintenance method is used, the following radio installations, in addition
         to other equipment requirements specified in this subpart, must be available on-board ships for their sea
         areas as applicable. Equipment carried in accordance with this paragraph must comply with §§ 80.1101
         and 80.1103. Additionally, each radio installation must be connected to a separate antenna and be
         installed and be ready for immediate operation.

           (1) Ships, equipped in accordance with § 80.1087 for sea area A1, must carry a VHF radio installation
               complying with the requirements of § 80.1085(a)(1).

           (2) Ships, equipped in accordance with § 80.1089 for sea areas A1 and A2, must carry a VHF radio
               installation complying with the requirements of § 80.1085(a)(1) and an MF radio installation
               complying with the requirements of § 80.1089(a)(1) and being able to fully comply with watch
               requirements as specified in § 80.1123(a)(2). The MF radio installation installed for duplication must
               also comply with the requirements § 80.1089(c).

           (3) Ships, equipped in accordance with § 80.1091 for sea areas A1, A2, and A3, must carry a VHF radio
               installation complying with the requirements of § 80.1085(a)(1) and either an MF/HF radio
               installation complying with the requirements of § 80.1091(b)(1) and being able to fully comply with
               watch requirements as specified in § 80.1123(a)(2) or an INMARSAT ship earth station complying
               with the requirements of § 80.1091(a)(1). The MF/HF radio installation or the INMARSAT ship earth
               station installed for duplication must also comply with the requirements § 80.1091(c).

           (4) Ships, equipped in accordance with § 80.1093 for sea areas A1, A2, A3, and A4, must carry a VHF
               radio installation complying with the requirement of § 80.1085(a)(1) and an MF/HF radio installation
               complying with the requirements of § 80.1091(b)(1) and being able to fully comply with watch
               requirements as specified in § 80.1123(a)(2). The MF/HF radio installation installed for duplication
               must also comply with the requirements § 80.1091(c).

     (h) The radio installations specified in paragraph (g) of this section (referred as “duplicated equipment”), in
         addition to the appropriate radio equipment specified in § 80.1099 (referred as “basic equipment”), must
         be connected to the reserve sources of energy required by § 80.1099. The capacity of the reserve sources
         of energy should be sufficient to operate the particular installation (i.e., the basic equipment or the
         duplicated equipment) with the highest power consumption, for the appropriate period specified in §
         80.1099. However, the arrangement for the reserve sources of energy must be such that a single fault in
         this arrangement cannot affect both the basic and the duplicated equipment.

     (i)   If the shore-based maintenance method is used, the following requirements apply.

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           (1) Maintenance services must be completed and performance verified and noted in the ship's record
               before departure from the first port of call entered after any failure occurs.

           (2) Each GMDSS equipment must be tested and performance verified and the results noted in the ship's
               record before departure from every port. To accomplish this, each ship shall carry a performance
               checkoff sheet listing each GMDSS equipment carried on a mandatory basis.

     (j)   If the at-sea maintenance method is used, the following requirements apply.

           (1) Adequate additional technical documentation, tools, test equipment, and spare parts must be carried
               on-board ship to enable a qualified maintainer as specified in § 80.1074 to perform tests and localize
               and repair faults in the radio equipment.

           (2) Only persons that comply with the requirements of § 80.1074 may perform at-sea maintenance on
               radio installations required by this subpart.

     (k) Satellite EPIRBs shall be tested at intervals not exceeding 12 months for all aspects of operational
         efficiency with particular emphasis on frequency stability, signal strength and coding. The test may be
         conducted on board the ship or at an approved testing or servicing station.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46980, Aug. 7, 2003]

§ 80.1107 Test of radiotelephone station.
Unless the normal use of the required radiotelephone station demonstrates that the equipment is operating, a test
communication on a required or working frequency must be made each day the ship is navigated. When this test is
performed by a person other than the master and the equipment is found to be defective, the master must be
promptly notified.

[76 FR 67617, Nov. 2, 2011]

                      OPERATING PROCEDURES FOR DISTRESS AND SAFETY COMMUNICATIONS

§ 80.1109 Distress, urgency, and safety communications.
     (a) Distress traffic consists of all messages relating to the immediate assistance required by the ship in
         distress, including search and rescue communications and on-scene communications. Distress traffic
         must as far as possible be on the frequencies contained in § 80.1077.

     (b) Urgency and safety communications include: navigational and meteorological warnings and urgent
         information; ship-to-ship safety navigation communications; ship reporting communications; support
         communications for search and rescue operations; other urgency and safety messages and
         communications relating to the navigation, movements and needs of ships and weather observation
         messages destined for an official meteorological service.

     (c) Intership navigation safety communications are those VHF radiotelephone communications conducted
         between ships for the purpose of contributing to the safe movement of ships. The frequency 156.650
         MHz is used for intership navigation safety communications (see § 80.1077).

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                                                                                                                 47 CFR 80.1111
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§ 80.1111 Distress alerting.
     (a) The transmission of a distress alert indicates that a mobile unit or person is in distress and requires
         immediate assistance. The distress alert is a digital selective call using a distress call format in bands
         used for terrestrial radiocommunication or a distress message format, which is relayed through space
         stations.

     (b) The distress alert must be sent through a satellite either with absolute priority in general communication
         channels or on exclusive distress and safety frequencies or, alternatively, on the distress and safety
         frequencies in the MF, HF, and VHF bands using digital selective calling.

     (c) The distress alert must be sent only on the authority of the person responsible for the ship, aircraft or
         other vehicle carrying the mobile station or the mobile earth station.

     (d) All stations which receive a distress alert transmitted by digital selective calling must immediately cease
         any transmission capable of interfering with distress traffic and must continue watch on the digital
         selective call distress calling channel until the call has been acknowledged to determine if a coast station
         acknowledges the call using digital selective calling. Additionally, the station receiving the distress alert
         must set watch on the associated distress traffic frequency for five minutes to determine if distress traffic
         takes place. The ship can acknowledge the call using voice or narrowband direct printing as appropriate
         on this channel to the ship or to the rescue authority.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46980, Aug. 7, 2003]

§ 80.1113 Transmission of a distress alert.
     (a) The distress alert must identify the station in distress and its position. The distress alert may also contain
         information regarding the nature of the distress, the type of assistance required, the course and speed of
         the mobile unit, the time that this information was recorded and any other information which might
         facilitate rescue.

     (b) The format of distress calls and distress messages must be in accordance with ITU–R M.493–13 and
         ITU–R M.541–9 (both incorporated by reference, see § 80.7), as specified in § 80.1101.

     (c) Ship-to-shore distress alerts are used to alert Rescue Coordination Centers via coast stations or coast
         earth stations that a ship is in distress. These alerts are based on the use of transmissions via satellites
         (from a ship earth station or a satellite EPIRB) and terrestrial services (from ship stations and EPIRBs).

     (d) Ship-to-ship distress alerts are used to alert other ships in the vicinity of the ship in distress and are based
         on the use of digital selective calling in the VHF and MF bands. The HF bands should not be used to notify
         ships in the vicinity unless no response is received within five minutes on VHF or MF.

     (e) Shore-to-ship distress alert relays are used by a station or Rescue Coordination Center to relay information
         about a ship in distress to, as appropriate, all ships, a selected group of ships, or a specific ship by
         satellite and/or terrestrial means. The distress alert relay must contain the identification of the mobile unit
         in distress, its position and all other information which might facilitate rescue.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46980, Aug. 7, 2003; 73 FR 4491, Jan. 25, 2008; 76 FR 67617, Nov. 2, 2011]

§ 80.1114 False distress alerts.
The provisions of §§ 80.334 and 80.335 apply to false distress alerts.

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                                                                                                             47 CFR 80.1115
Stations in the Maritime Services

[68 FR 46980, Aug. 7, 2003]

§ 80.1115 Transmission of a distress alert by a station not itself in distress.
     (a) A station in the mobile or mobile-satellite service which learns that a mobile unit is in distress must
         initiate and transmit a distress alert relay in any of the following cases:

           (1) When the mobile unit in distress is not itself in a position to transmit the distress alert; or

           (2) When the master or person responsible for the mobile unit not in distress or the person responsible
               for the land station determines that further help is necessary.

     (b) A station transmitting a distress alert relay in accordance with paragraph (a) of this section or §
         80.1121(c) must indicate that it is not itself in distress.

§ 80.1117 Procedure for receipt and acknowledgement of distress alerts.
     (a) Normally, distress calls received using digital selective calling are only acknowledged using a DSC
         acknowledgement by a coast station. Ships should delay any acknowledgement in order to give sufficient
         time for a coast station to acknowledge the call. In cases where no acknowledgement has been heard
         and no distress traffic has been heard, the ship should transmit a distress alert relay to the coast station.
         Upon advice from the Rescue Coordination Center, the ship may transmit a DSC acknowledgement call to
         stop it from being repeated. Acknowledgement by digital selective calling of receipt of a distress alert in
         the terrestrial services must comply with ITU–R M.541–9 (incorporated by reference, see § 80.7).

     (b) Acknowledgement through a satellite of receipt of a distress alert from a ship earth station must be sent
         immediately (see § 80.1119).

     (c) Acknowledgement by radiotelephony of receipt of a distress alert from a ship station or a ship earth
         station must be given in the following form:

           (1) The distress signal MAYDAY;

           (2) The call sign or other identification of the station sending the distress message, spoken three times;

           (3) The words THIS IS (or DE spoken as DELTA ECHO in case of language difficulties);

           (4) The call sign or other identification of the station acknowledging receipt, spoken three times;

           (5) The word RECEIVED (or RRR spoken as ROMEO ROMEO ROMEO in case of language difficulties);

           (6) The distress signal MAYDAY.

     (d) The acknowledgement by direct-printing telegraphy of receipt of a distress alert from a ship station must
         be given in the following form:

           (1) The distress signal MAYDAY;

           (2) The call sign or other identification of the station sending the distress alert;

           (3) The word DE;

           (4) The call sign or other identification of the station acknowledging receipt of the distress alert;

           (5) The signal RRR;

           (6) The distress signal MAYDAY.

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     (e) The acknowledgement by direct-printing telegraphy of receipt of a distress alert from a ship earth station
         must be given by the coast earth station receiving the distress alert by retransmitting the ship station
         identity of the ship transmitting the distress alert.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46980, Aug. 7, 2003; 73 FR 4491, Jan. 25, 2008; 76 FR 67618, Nov. 2, 2011]

§ 80.1119 Receipt and acknowledgement of distress alerts by coast stations and coast earth
stations.
     (a) Coast stations that receive a distress alert should defer acknowledgement for a short interval so that
         receipt may be acknowledged by a Rescue Coordination Center. Where an acknowledgement is not
         forthcoming within 3 minutes, the coast station in receipt of distress alerts must ensure that they are
         routed to a Rescue Coordination Center as soon as possible. Coast stations must provide assistance for
         distress communications when requested to do so by the U.S. Coast Guard. (This subpart does not
         specify any radio watches for coast stations.)

     (b) Coast earth stations in receipt of distress alerts must ensure that they are routed as soon as possible to a
         Rescue Coordination Center. Coast earth stations must relay, as soon as possible, an acknowledgement
         of a distress alert from a Rescue Coordination Center.

     (c) Certain messages must be carried without charge, regardless of the means by which they are transmitted:

           (1) Distress alert messages;

           (2) Search and rescue coordination messages;

           (3) Medical assistance messages where an imminent danger to life is present, or

           (4) Urgent meteorological or navigational danger messages passed in the ship-to-shore direction.

§ 80.1121 Receipt and acknowledgement of distress alerts by ship stations and ship earth
stations.
     (a) Ship or ship earth stations that receive a distress alert must, as soon as possible, inform the master or
         person responsible for the ship of the contents of the distress alert.

     (b) For VHF and MF, ships in receipt of a distress alert shall not transmit a distress alert relay, but should
         listen on the distress traffic channel for 5 minutes and, if appropriate, acknowledge the alert by
         radiotelephony to the ship in distress and inform the coast station and/or Rescue Coordination Center.
         Distress alert relays to “all ships” on these bands may only be sent by a ship who has knowledge that
         another ship in distress is not itself able to transmit the distress alert, and the Master of the ship
         considers that further help is necessary.

     (c) For HF, ships in receipt of a distress alert shall listen on the distress traffic channel for 5 minutes. If no
         distress communications are heard and if the call is not acknowledged by a coast station, the ship shall
         transmit a distress relay on HF to the coast radio station and inform the Rescue Coordination Center.
         Distress alert relays to “all Ships” on HF may only be sent by a ship who has knowledge that another ship
         in distress is not itself able to transmit the distress alert, and the Master of the ship considers that further
         help is necessary.

     (d) In cases where distress alert continues to be received from the same source, the ship may, after
         consultation with the Rescue Coordination Center, transmit a DSC acknowledgment to terminate the call.

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     (e) A ship station in receipt of a shore-to-ship distress alert relay (see § 80.1113(e)) should establish
         communication as directed and render such assistance as required and appropriate.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46980, Aug. 7, 2003]

§ 80.1123 Watch requirements for ship stations.
     (a) While at sea, all ships must maintain a continuous watch:

           (1) On VHF DSC channel 70, if the ship is fitted with a VHF radio installation in accordance with §
               80.1085(a)(2);

           (2) On the distress and safety DSC frequency 2187.5 kHz, if the ship is fitted with an MF radio
               installation in accordance with § 80.1089(a)(2) or § 80.1091(a)(3);

           (3) On the distress and safety DSC frequencies 2187.5 kHz and 8414.5 kHz also on at least one of the
               distress and safety DSC frequencies 4207.5 kHz, 6312 kHz, 12577 kHz, or 16804.5 kHz appropriate
               to the time of day and the geographical position of the ship, if the ship is fitted with an MF/HF radio
               installation in accordance with § 80.1091(a)(2)(ii) or § 80.1093(a) of this part (this watch may be
               kept by means of a scanning receiver limited to six distress and safety DSC frequencies); and

           (4) For satellite shore-to-ship distress alert, if the ship is fitted with an INMARSAT ship earth station in
               accordance with § 80.1091(a)(1).

     (b) While at sea, all ships must maintain radio watches for broadcasts of maritime safety information on the
         appropriate frequency or frequencies on which such information is broadcast for the area in which the
         ship is navigating.

     (c) Every ship while at sea must maintain, when practicable, a continuous listening watch on VHF Channel 16.
         This watch must be kept at the position from which the ship is normally navigated or at a position which
         is continuously manned.

     (d) On receipt of a distress alert transmitted by use of digital selective calling techniques, ship stations must
         set watch on the radiotelephone distress and safety traffic frequency associated with the distress and
         safety calling frequency on which the distress alert was received.

     (e) Ship stations with narrow-band direct printing equipment must set watch on the narrow-band direct-
         printing frequency associated with the distress alert signal if it indicates that narrow-band direct-printing
         is to be used for subsequent distress communications. If practicable, they should additionally set watch
         on the radiotelephone frequency associated with the distress alert frequency.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46981, Aug. 7, 2003; 73 FR 4492, Jan. 25, 2008]

§ 80.1125 Search and rescue coordinating communications.
     (a) The distress signal consists of the word MAYDAY, pronounced in radiotelephony as the French expression
         “M'aider”. For distress traffic by radiotelephony, when establishing communications, calls must be
         prefixed by the distress signal MAYDAY.

     (b) Error correction techniques, in accordance with ITU–R M.625–3 (incorporated by reference, see § 80.7),
         as specified in § 80.1101, must be used for distress traffic by direct-printing telegraphy. All messages
         must be preceded by at least one carriage return, a line feed signal, a letter shift signal and the distress
         signal MAYDAY.
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     (c) Distress communications by direct-printing telegraphy should be in the ARQ mode when ships are
         communicating directly to the Coast Guard or other coast stations on channels which they normally
         guard. Other distress communications, including those on simplex channels provided for that purpose,
         should be in the broadcast forward error correction mode. The ARQ mode may subsequently be used
         when it is advantageous to do so.

     (d) The Rescue Coordination Center responsible for controlling a search and rescue operation will also
         coordinate the distress traffic relating to the incident or may appoint another station to do so.

     (e) The Rescue Coordination Center coordinating distress traffic, the unit coordinating search and rescue
         operations, or the coast station involved may impose silence on stations which interfere with that traffic.
         This instruction may be addressed to all stations or to one station only, according to circumstances. In
         either case, the following will be used:

           (1) In radiotelephony, the signal SEELONCE MAYDAY, pronounced as the French expression “silence,
               m'aider”;

           (2) In narrow-band direct-printing telegraphy normally using forward-error correcting mode, the signal
               SILENCE MAYDAY. However, the ARQ mode may be used when it is advantageous to do so.

     (f) Until they receive the message indicating that normal working may be resumed (see paragraph (h) of this
         section), all stations which are aware of the distress traffic, and which are not taking part in it, and which
         are not in distress, are forbidden to transmit on the frequencies in which the distress traffic is taking
         place.

     (g) Stations following distress traffic that are able to continue normal service may do so when the distress
         traffic is well established and on condition that it observes the provisions of paragraph (f) of this section
         and that it does not interfere with distress traffic.

     (h) When distress traffic has ceased on frequencies which have been used for distress traffic, the Rescue
         Coordination Center controlling a search and rescue operation must initiate a message for transmission
         on these frequencies indicating that distress traffic has finished.

     (i)   In radiotelephony, the message referred to in paragraph (h) of this section consists of:

           (1) The distress signal MAYDAY;

           (2) The call “Hello all stations” or CQ (spoken as CHARLIE QUEBEC) spoken three times;

           (3) The words THIS IS (or DE spoken as DELTA ECHO in the case of language difficulties);

           (4) The call sign or other identification of the station sending the message;

           (5) The time when the distress situation has ceased;

           (6) The name and call sign of the mobile station which was in distress;

           (7) The words SEELONCE FEENEE pronounced as the French words “silence fini”

     (j)   In direct-printing telegraphy, the message referred to in paragraph (h) of this section consists of:

           (1) The distress signal MAYDAY;

           (2) The call CQ;

           (3) The word DE;

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                                                                                                           47 CFR 80.1125(j)(4)
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           (4) The call sign or other identification of the station sending the message;

           (5) The time when distress situation has ceased;

           (6) The name and call sign of the mobile station which was in distress; and

           (7) The words SILENCE FINI.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46981, Aug. 7, 2003; 73 FR 4492, Jan. 25, 2008; 76 FR 67618, Nov. 2, 2011]

§ 80.1127 On-scene communications.
     (a) On-scene communications are those between mobile unit in distress and assisting mobile units, and
         between the mobile units and unit coordinating search and rescue operations.

     (b) Control of on-scene communications is the responsibility of the unit coordinating search and rescue
         operations. Simplex communications must be used so that all on-scene mobile stations may share
         relevant information concerning the distress incident. If direct-printing telegraphy is used, it must be in the
         forward error-correcting mode in accordance with ITU-R Recommendation M.625–3, with Annex, as
         specified in § 80.1101.

     (c) The preferred frequencies in radiotelephony for on-scene communications are 156.8 MHz and 2182 kHz.
         The frequency 2174.5 kHz may also be used for ship-to-ship on-scene communications using narrow-
         band direct-printing telegraphy in the forward error correcting mode in accordance with ITU–R M.625–3
         (incorporated by reference, see § 80.7), as specified in § 80.1101.

     (d) In addition to 156.8 MHz and 2182 kHz, the frequencies 3023 kHz, 4125 kHz, 5680 kHz, 123.1 MHz and
         156.3 MHz may be used for ship-to-aircraft on-scene communications.

     (e) The selection or designation of on-scene frequencies is the responsibility of the unit coordinating search
         and rescue operations. Normally, once an on-scene frequency is established, a continuous aural or
         teleprinter watch is maintained by all participating on-scene mobile units on the selected frequency.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46981, Aug. 7, 2003; 76 FR 67618, Nov. 2, 2011]

§ 80.1129 Locating and homing signals.
     (a) Locating signals are radio transmissions intended to facilitate the finding of a mobile unit in distress or
         the location of survivors. These signals include those transmitted by searching units and those
         transmitted by the mobile unit in distress, by survival craft, by float-free EPIRBS, by satellite EPRIBs, and
         by search and rescue radar transponders to assist the searching units.

     (b) Homing signals are those locating signals which are transmitted by mobile units in distress, or by survival
         craft, for the purpose of providing searching units with a signal that can be used to determine the bearing
         to the transmitting stations.

     (c) Locating signals may be transmitted in the following frequency bands: 117.975–136 MHz, 121.5 MHz,
         156–174 MHz, 406–406.1 MHz, and 9200–9500 MHz.

     (d) The 9 GHz locating signals must be in accordance with ITU–R M.628–4 (incorporated by reference, see §
         80.7), as specified in § 80.1101.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46981, Aug. 7, 2003; 76 FR 67618, Nov. 2, 2011; 78 FR 23158, Apr. 18, 2013]

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                                                                                                          47 CFR 80.1131
Stations in the Maritime Services

§ 80.1131 Transmissions of urgency communications.
     (a) In a terrestrial system the announcement of the urgency message must be made on one or more of the
         distress and safety calling frequencies specified in § 80.1077 using digital selective calling and the
         urgency call format. A separate announcement need not be made if the urgency message is to be
         transmitted through the maritime mobile-satellite service.

     (b) The urgency signal and message must be transmitted on one or more of the distress and safety traffic
         frequencies specified in § 80.1077, or via the maritime mobile-satellite service or on other frequencies
         used for this purpose.

     (c) The urgency signal consists of the words PAN PAN. In radiotelephony each word of the group must be
         pronounced as the French word “panne”.

     (d) The urgency call format and the urgency signal indicate that the calling station has a very urgent message
         to transmit concerning the safety of a mobile unit or a person.

     (e) In radiotelephony, the urgency message must be preceded by the urgency signal, repeated three times,
         and the identification of the transmitting station.

     (f) In narrow-band direct-printing, the urgency message must be preceded by the urgency signal and the
         identification of the transmitting station.

     (g) The urgency call format or urgency signal must be sent only on the authority of the master or the person
         responsible for the mobile unit carrying the mobile station or mobile earth station.

     (h) The urgency call format or the urgency signal may be transmitted by a land station or a coast earth station
         with the approval of the responsible authority.

     (i)   When an urgency message which calls for action by the stations receiving the message has been
           transmitted, the station responsible for its transmission must cancel it as soon as it knows that action is
           no longer necessary.

     (j)   Error correction techniques, in accordance with ITU–R M.625–3 (incorporated by reference, see § 80.7),
           as specified in § 80.1101, must be used for urgency messages by direct-printing telegraphy. All messages
           must be preceded by at least one carriage return, a line feed signal, a letter shift signal, and the urgency
           signal PAN PAN.

     (k) Urgency communications by direct-printing telegraphy should be in the ARQ mode when communicating
         directly to the Coast Guard or other coast stations on channels which they normally guard. Other distress
         communications, including those on simplex channels provided for that purpose, should be in the
         broadcast forward error correction mode. The ARQ mode may subsequently be used when it is
         advantageous to do so.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46981, Aug. 7, 2003; 76 FR 67618, Nov. 2, 2011]

§ 80.1133 Transmission of safety communications.
     (a) In a terrestrial system the announcement of the safety message must be made on one or more of the
         distress and safety calling frequencies specified in § 80.1077 using digital selective calling techniques. A
         separate announcement need not be made if the message is to be transmitted through the maritime
         mobile-satellite service.

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     (b) The safety signal and message must normally be transmitted on one or more of the distress and safety
         traffic frequencies specified in § 80.1077, or via the maritime mobile satellite service or on other
         frequencies used for this purpose.

     (c) The safety signal consists of the word SECURITE. In radiotelephony, it is pronounced as in French.

     (d) The safety call format or the safety signal indicates that the calling station has an important navigational
         or meteorological warning to transmit.

     (e) In radiotelephony, the safety message must be preceded by the safety signal, repeated three times, and
         the identification of the transmitting station.

     (f) In narrow-band direct-printing, the safety message must be preceded by the safety signal and the
         identification of the transmitting station.

     (g) Error correction techniques, in accordance with ITU–R M.625–3 (incorporated by reference, see § 80.7),
         as specified in § 80.1101, must be used for safety messages by direct-printing telegraphy. All messages
         must be preceded by at least one carriage return, a line feed signal, a letter shift signal, and the safety
         signal SECURITE.

     (h) Safety communications by direct-printing telegraphy should be in the ARQ mode when communicating
         directly to the Coast Guard or other coast stations on channels which they normally guard. Other distress
         communications, including those on simplex channels provided for that purpose, should be in the
         broadcast forward error correction mode. The ARQ mode may subsequently be used when it is
         advantageous to do so.

[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46981, Aug. 7, 2003; 76 FR 67618, Nov. 2, 2011]

§ 80.1135 Transmission of maritime safety information.
     (a) The operational details of the stations transmitting maritime safety information in accordance with this
         section are indicated in the ITU List of Radiodetermination and Special Service Stations and the IMO
         Master Plan of Shore-Based Facilities.

     (b) The mode and format of the transmissions mentioned in this section is in accordance with ITU–R
         M.540–2 (incorporated by reference, see § 80.7) as specified in § 80.1101.

     (c) Maritime safety information is transmitted by means of narrow-band direct-printing telegraphy with
         forward error correction using the frequency 518 kHz in accordance with the international NAVTEX
         system (see § 80.1077).

     (d) The frequency 490 kHz may be used, after full implementation of the GMDSS, for the transmission of
         maritime safety information by means of narrow-band direct-printing telegraphy with forward error
         correction (see § 80.1077).

     (e) Internationally, the frequency 4209.5 kHz is used for NAVTEX-type transmissions by means of narrow-
         band direct-printing telegraphy with forward error correction (see § 80.1077).

     (f) Maritime safety information is transmitted by means of narrow-band direct-printing telegraphy with
         forward error correction using the frequencies 4210 kHz, 6314 kHz, 8416.5 kHz, 12579 kHz, 16806.5 kHz,
         19680.5, 22376 kHz, and 26100.5 kHz (see § 80.1077).

     (g) Maritime safety information is transmitted via satellite in the maritime mobile-satellite service using the
         band 1530–1545 MHz (see § 80.1077).
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[57 FR 9065, Mar. 16, 1992, as amended at 68 FR 46982, Aug. 7, 2003; 76 FR 67618, Nov. 2, 2011]

Subpart X—Voluntary Radio Installations

                                                         GENERAL

§ 80.1151 Voluntary radio operations.
Voluntary ships must meet the rules applicable to the particular mode of operation as contained in the following
subparts of this part and as modified by § 80.1153:

     Operating Requirements and Procedures—Subpart C

     Equipment Technical Requirements—Subpart E

     Frequencies—Subpart H

§ 80.1153 Station log and radio watches.
     (a) Licensees of voluntary ships are not required to maintain radio station logs.

     (b) When a ship radio station of a voluntary ship is being operated, the appropriate general purpose watches
         must be maintained in accordance with §§ 80.147 and 80.310.

[73 FR 4492, Jan. 25, 2008]

                                                VOLUNTARY TELEGRAPHY

§ 80.1155 Radioprinter.
Radioprinter operations provide record communications between authorized maritime mobile stations.

     (a) Supplementary eligibility requirements. Ships must be less than 1600 gross tons.

     (b) Scope of communication.

           (1) Ship radioprinter communications may be conducted with an associated private coast station.

           (2) Ships authorized to communicate by radioprinter with a common private coast station may also
               conduct intership radioprinter operations.

           (3) Only those communications which are associated with the business and operational needs of the
               ship are authorized.

     (c) Assignment and use of frequencies.

           (1) Frequencies for radioprinter operations are shared by several radio services including the maritime
               mobile service.

           (2) Ship stations must conduct radioprinter operations only on frequencies assigned to their associated
               private coast station for that purpose.

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     (d) Authorization procedure. The authorization procedure for ship station radioprinter operations is as
         follows:

           (1) The associated private coast station must submit an application for specific radioprinter frequencies
               and provide the names of ships to be served.

           (2) When the private coast station receives a radioprinter license, it must provide copies of their license
               to all ships with which they are authorized to conduct radioprinter operations. The private coast
               station license copy must be kept as part of the ship station license.

           (3) Any addition or deletion of ships must be notified to the Commission by letter.

§ 80.1157 Facsimile.
Facsimile is a form of telegraphy for the transmission and receipt of fixed images. Ships must use facsimile
techniques only with authorized public coast stations.

§ 80.1159 Narrow-band direct-printing (NB-DP).
NB-DP is a form of telegraphy for the transmission and receipt of direct printing public correspondence. Ships must
use NB-DP techniques only with authorized public coast stations.

§ 80.1161 Emergency position indicating radiobeacon (EPIRB).
EPIRB transmissions must be used only under emergency conditions. The various classes of EPIRB's are described
in subpart V of this part.

                                               VOLUNTARY TELEPHONY

§ 80.1165 Assignment and use of frequencies.
Frequencies for general radiotelephone purposes are available to ships in three radio frequency bands. Use of
specific frequencies must meet the Commission's rules concerning the scope of service and the class of station
with which communications are intended. The three frequency bands are:

     (a) 156–158 MHz (VHF/FM Radiotelephone). Certain frequencies within this band are public correspondence
         frequencies and they must be used as working channels when communicating with public coast stations.
         Other working frequencies within the band are categorized by type of communications for which use is
         authorized when communicating with a private coast station or between ships. Subpart H of this part lists
         the frequencies and types of communications for which they are available.

     (b) 1600–4000 kHz (SSB Radiotelephone). Specific frequencies within this band are authorized for single
         sideband (SSB) communications with public and private coast stations or between ships. The specific
         frequencies are listed in subpart H of this part.

     (c) 4000–23000 kHz (SSB Radiotelephone). Specific frequencies within this band are authorized for SSB
         communications with public and private coast stations. The specific frequencies are listed in subpart H of
         this part.

§ 80.1169 [Reserved]

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§ 80.1171 Assignment and use of frequencies.
     (a) The frequencies assignable to AMTS stations are listed in § 80.385(a). These frequencies are assignable
         to ship and coast stations for voice, facsimile and radioteletypewriter communications.

     (b) [Reserved]

                                              ON-BOARD COMMUNICATIONS

§ 80.1175 Scope of communications of on-board stations.
     (a) On-board stations communicate:

           (1) With other units of the same station for operational communications on the ship.

           (2) With on-board stations of another ship or shore facility to aid in oil pollution prevention during the
               transfer of 250 or more barrels of oil.

           (3) With other units of the same station in the immediate vicinity of the ship for operational
               communications related to docking, life boat and emergency drills or in the maneuvering of cargo
               barges and lighters.

     (b) An on-board station may communicate with a station in the Business Radio Service operating on the same
         frequency when the vessel on which the on-board station is installed is alongside the dock or cargo
         handling facility.

§ 80.1177 Assignment and use of frequencies.
On-board frequencies are assignable only to ship stations. When an on-board repeater is used, paired frequencies
must be used. On-board repeater frequencies must be used for single frequency simplex operations. On-board
frequencies are listed in subpart H.

§ 80.1179 On-board repeater limitations.
When an on-board repeater is used, the following limitations must be met:

     (a) The on-board repeater antenna must be located no higher than 3 meters (10 feet) above the vessel's
         highest working deck.

     (b) Each on-board repeater must have a timer that deactivates the transmitter if the carrier remains on for
         more than 3 minutes.

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44954, Aug. 25, 1993]

§ 80.1181 Station identification.
     (a) On-board stations must identify when:

           (1) The vessel is within 32 km (20 miles) of any coastline; or

           (2) The communications are likely to be received aboard another vessel.

     (b) Identification, when required, must be:

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           (1) Transmitted at the beginning and the end of a series of communications. Whenever communications
               are sustained for a period exceeding 15 minutes, station identification must be transmitted at
               intervals not exceeding 15 minutes.

           (2) In English and must include the name of the vessel, followed by a number or name designating the
               respective mobile unit, for example: “S.S. United States Mobile One, this is Mobile Two.”

[51 FR 31213, Sept. 2, 1986, as amended at 58 FR 44954, Aug. 25, 1993]

§ 80.1183 Remote control for maneuvering or navigation.
     (a) An on-board station may be used for remote control of maneuvering or navigation control systems aboard
         the same ship or, where that ship is towing a second ship, aboard the towed ship.

     (b) The remote control system transmissions must contain a synchronization signal and a message signal
         composed of a documentation number group, a company control group, an actuation instruction group,
         and a termination of transmission group.

           (1) The synchronization signal must be the control character “SYN”, transmitted twice.

           (2) The message signal is composed of the following groups:

                 (i)   The documentation number group must be transmitted once and be the ship's U.S. Coast Guard
                       documentation number or, if the ship is not documented, the call sign of the on-board station.

                (ii) The company control group, composed of three letters taken from AAA through ZZZ, which
                     must be transmitted one time.

                       (iiii) The actuation instruction group, composed of two letters taken from AA through ZZ, which
                       must be transmitted one time.

                (iv) The termination of transmission group, composed of the control character “EM”, which must be
                     transmitted twice.

     (c) The receiving system must:

           (1) Reject any actuation instruction until it recognizes and accepts the company control group.

           (2) Reject any company control group until it recognizes and accepts the documentation number group.

     (d) The emission employed must be G2D. The provisions applicable to G3E emission are also applicable to
         G2D emission.

     (e) The binary information must be applied to the carrier as frequency-shift keying (FSK) of the standard
         tones 1070 and 1270 Hz. “0” (low) must correspond to 1070 Hz and “1” (high) must correspond to 1270
         Hz. The signalling rate must be 300 bits per second.

     (f) The alphabet employed must be the United States of America Standard Code for Information Interchange
         (USASCII), contained in the United States of America Standards Institute publication USAS X3.4–1968.

           (1) The bit sequence must be least significant bit first to most significant bit (bit 1 through 7),
               consecutively.

           (2) The character structure must consist of 8 bits (seven bits plus one character parity bit) having equal
               time intervals.

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           (3) “Odd” parity is required.

                                              MOBILE-SATELLITE STATIONS

§ 80.1185 Supplemental eligibility for mobile-satellite stations.
Stations in the maritime mobile-satellite service must meet the eligibility requirements contained in this section.

     (a) A station license for a ship earth station may be issued to:

           (1) The owner or operator of a ship.

           (2) A corporation proposing to furnish a nonprofit radio communication service to its parent corporation,
               to another subsidiary of the same parent, or to its own subsidiary, where the party to be served is the
               owner or operator of the ship aboard which the ship earth station is to be installed and operated.

     (b) A station license for a portable ship earth station may be issued to the owner or operator of portable earth
         station equipment proposing to furnish satellite communication services on board more than one ship or
         fixed offshore platform located in the marine environment.

[52 FR 27003, July 17, 1987, as amended at 54 FR 49995, Dec. 4, 1989]

§ 80.1187 Scope of communication.
Ship earth stations must be used for telecommunications related to the business or operation of ships and for
public correspondence of persons on board. Portable ship earth stations are authorized to meet the business,
operational and public correspondence telecommunication needs of fixed offshore platforms located in the marine
environment as well as ships. The types of emission are determined by the INMARSAT organization.

[52 FR 27003, July 17, 1987]

§ 80.1189 Portable ship earth stations.
     (a) Portable ship earth stations are authorized to operate on board more than one ship. Portable ship earth
         stations are also authorized to be operated on board fixed offshore platforms located in international or
         United States domestic waters.

     (b) Portable ship earth stations must meet the rule requirements of ship earth stations with the exeception of
         eligibility.

     (c) Where the license of the portable ship earth station is not the owner of the ship or fixed platform on which
         the station is located, the station must be operated with the permission of the owner or operator of the
         ship or fixed platform.

[52 FR 27003, July 17, 1987]

                                                  RADIODETERMINATION

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§ 80.1201 Special provisions for cable-repair ship stations.
     (a) A ship station may be authorized to use radio channels in the 285–315 kHz band in Region 1 and
         285–325 kHz in any other region for cable repair radiodetermination purposes under the following
         conditions:

           (1) The radio transmitting equipment attached to the cable-marker buoy associated with the ship station
               must be described in the station application;

           (2) The call sign used for the transmitter operating under the provisions of this section is the call sign of
               the ship station followed by the letters “BT” and the identifying number of the buoy.

           (3) The buoy transmitter must be continuously monitored by a licensed radiotelegraph operator on board
               the cable repair ship station; and

           (4) The transmitter must operate under the provisions in § 80.375(b).

Subpart Y—Competitive Bidding Procedures

Source: 63 FR 40065, July 27, 1998, unless otherwise noted.

§ 80.1251 Maritime communications subject to competitive bidding.
Mutually exclusive initial applications for VPCSA licenses and AMTS coast station licenses are subject to
competitive bidding. The general competitive bidding procedures set forth in part 1, subpart Q of this chapter will
apply unless otherwise provided in this part.

[67 FR 45375, July 9, 2002]

§ 80.1252 Designated entities.
     (a) This section addresses certain issues concerning designated entities in maritime communications
         services subject to competitive bidding.

     (b) Eligibility for small business provisions.

           (1) A small business is an entity that, together with its affiliates and controlling interests, has average
               gross revenues not to exceed $15 million for the preceding three years.

           (2) A very small business is an entity that, together with its affiliates and controlling interests, has
               average gross revenues not to exceed $3 million for the preceding three years.

           (3) [Reserved]

           (4) A consortium of small businesses (or a consortium of very small businesses) is a conglomerate
               organization formed as a joint venture between or among mutually independent business firms, each
               of which individually satisfies the definition in paragraph (b)(1) of this section (or each of which
               individually satisfies the definition in paragraph (b)(2) of this section). Where an applicant or licensee
               is a consortium of small businesses (or very small businesses), the gross revenues of each small
               business (or very small business) shall not be aggregated.

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     (c) A winning bidder that qualifies as a small business, as defined in § 80.1252(b)(1), or consortium of small
         businesses may use the bidding credit specified in § 1.2110(f)(2)(ii) of this chapter. A winning bidder that
         qualifies as a very small business, as defined in § 80.1252(b(2), or consortium of very small businesses
         may use the bidding credit specified in § 1.2110(f)(2)(i) of this chapter.

     (d) A winning bidder that qualifies as a small business or a consortium of small businesses as defined in §
         80.1252(b)(1) or § 80.1252(b)(5) of this subpart may use the bidding credit specified in § 1.2110(e)(2)(ii)
         of this chapter. A winning bidder that qualifies as a very small business or a consortium of very small
         businesses as defined in § 80.1252(b)(2) or § 80.1252(b)(5) of this subpart may use the bidding credit
         specified in § 1.2110(e)(2)(i) of this chapter.

[63 FR 40065, July 27, 1998, as amended at 68 FR 43000, July 21, 2003]

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