reglab/statecodes huggingface dataset:
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 3 - Roles and Responsibilities › Section 1668 - Director

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The Director of the Department shall be responsible for
					 final decisions resolving conflicts or appeals on local, regional, or State
					 decisions.
1. Amendment
					 of NOTE filed 1-17-85; effective thirtieth day thereafter (Register 85, No.
					 3).
Note: Authority cited: Section
						14031,
						Government Code; and Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614). Reference: Section
						14031,
						Government Code; Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614); and Urban Mass
						Transportation Administration Circular 9040.1.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 4 - Funding › Section 1670 - Distribution of Funds

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The Department shall distribute the State's annual
					 apportionment of Section
					 18 funds as follows:
(a) Up to fifteen percent (15%) for program
				  administration and technical assistance in accordance with Section
				  18.
(b) Up to twenty percent (20%) to the State
				  Discretionary Reserve for the Department to distribute to capital or operating
				  assistance projects that exceed a region's ability to fund, to projects that
				  are multi-regional in nature, or to projects that address statewide interest or
				  concerns as determined by the Department. Criteria for selection of the
				  projects shall include such items as Statewide significance, use of other
				  available funding, local support, ranking of projects by the TPA, relation of
				  project to local needs and other similar criteria.
(c) Not less than sixty-five percent (65%)
				  for county apportionments for capital or operating assistance projects. The
				  county apportionment shall be calculated on the basis of the latest Federal
				  decennial census of the nonurbanized area population that, for any county that
				  is entirely non-urbanized area, the county apportionment shall not be less than
				  $15,000 per year. County apportionments for a multi-county transportation
				  planning agency shall be treated as a single apportionment. These
				  apportionments shall be programmed exclusively by the TPA for projects selected
				  by the TPA, subject to meeting the applicable State and Federal regulations. In
				  order for an applicant to qualify for the State Discretionary Reserve for a
				  project, all county apportionment funds available to that county for the
				  current fiscal year shall be programmed.
1. Amendment
					 filed 1-17-85; effective thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Section
						14031,
						Government Code; and Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614). Reference: Section
						14031,
						Government Code; Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614); and Urban Mass
						Transportation Administration Circular 9040.1.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 4 - Funding › Section 1674 - Redistribution Process

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Any amount of a county apportionment for which a completed
					 project application has not been received by the Department by the end of the
					 State Fiscal Year after its original availability (e.g., by June 30, 1985, for
					 funds from the 1983-84 apportionment) shall be redistributed to the State
					 Discretionary Reserve.
1. Amendment
					 filed 1-17-85; effective thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Section
						14031,
						Government Code; and Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614). Reference: Section
						14031,
						Government Code; Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614); and Urban Mass
						Transportation Administration Circular 9040.1.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 4 - Funding › Section 1675 - Special Redistribution of County Apportionments. [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. Repealer
					 filed 1-17-85; effective thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Sections
						14031 and
						14033,
						Government Code. Reference: Sections
						14031 and
						14033,
						Government Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 5 - Project Funding › Section 1676 - Project Funding

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Funds made available for projects under subsections (b) and
					 (c) of Section
					 1670 may be used for public
					 transportation projects which are included in a State program of projects for
					 public transportation in areas other than urbanized areas. The Federal share
					 for any construction or capital project under this Section shall not exceed
					 eighty percent(80%) of the net cost of such construction or capital project.
					 The Federal share for any project for the payment of financial assistance for
					 operating expenses as defined by the United States Department of Transportation
					 shall not exceed fifty percent (50%) of the net cost of such operating expense
					 project. At least fifty percent (50%) of the remainder of the net cost for both
					 capital and operating projects shall be provided in cash, or cash equivalent
					 from sources other than Federal funds or revenues from the operation of public
					 mass transportation systems. Up to fifty percent (50%) of the remainder of the
					 net cost may be made up of unrestricted funds from other Federal
					 programs.
1. Amendment
					 filed 1-17-85; effective thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Section
						14031,
						Government Code; and Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614). Reference: Section
						14031,
						Government Code; Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614); and Urban Mass
						Transportation Administration Circular 9040.1.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 5 - Project Funding › Section 1677 - Use of Other Federal Funds

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Applicants that have used funds pursuant to Section
					 5 or Section
					 9 of the Urban Mass Transportation
					 Act in the past for services that extend into nonurbanized areas shall continue
					 to use these Section
					 5 or Section
					 9 funds for these purposes as long
					 as the services are appropriate for the area. Section
					 18 funds shall be used only for
					 new or expanded services in these nonurbanized areas.
1. Amendment
					 filed 1-17-85; effective thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Section
						14031,
						Government Code; and Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614). Reference: Section
						14031,
						Government Code; Section
						18 of the Urban Mass
						Transportation Act of 1964 (49 USC 1614); and Urban Mass
						Transportation Administration Circular 9040.1
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 6 - Planning [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. Repealer of
				  Article 6 (Sections
				  1678 and
				  1679) filed 1-17-85; effective
				  thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Sections
					 14031 and
					 14033,
					 Government Code. Reference: Sections
					 14031 and
					 14033,
					 Government Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 7 - Programming [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. Repealer of
				  Article 7 (Sections
				  1680 and
				  1681) filed 1-17-85; effective
				  thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Sections
					 14031 and
					 14033,
					 Government Code. Reference: Sections
					 14031 and
					 14033,
					 Government Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 8 - Implementation [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. Repealer of
				  Article 8 (Sections
				  1685 and
				  1686) filed 1-17-85; effective
				  thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Sections
					 14031 and
					 14033,
					 Government Code. Reference: Sections
					 14031 and
					 14033,
					 Government Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 9 - Accounting, Reporting, and Auditing [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. Repealer of
				  Article 9 (Sections
				  1688 and
				  1689) filed 1-17-85; effective
				  thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Sections
					 14031 and
					 14033,
					 Government Code. Reference: Sections
					 14031 and
					 14033,
					 Government Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 15 - Nonurbanized Public Transportation › Article 10 - Settlement of Conflicts [Repealed]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. Repealer of
				  Article 10 (Section
				  1690) filed 1-17-85; effective
				  thirtieth day thereafter (Register 85, No. 3).
Note: Authority cited: Sections
					 14031 and
					 14033,
					 Government Code. Reference: Sections
					 14031 and
					 14033,
					 Government Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 1 - Two Automatic Vehicle Identification Equipment Protocols › Section 1700 - Summary. [Renumbered]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. New
					 chapter 16, articles 1-4 and sections
					 1700-1705.8, not consecutive filed
					 6-26-92; operative 7-27-92 (Register 92, No. 26).
2. Amendment filed
					 5-1-98; operative 5-31-98 (Register 98, No. 18).
3. Renumbering of
					 former article 1 (sections
					 1700-1701) to article 2 and
					 renumbering of former section
					 1700 to section
					 1701.1 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 1 - Two Automatic Vehicle Identification Equipment Protocols › Section 1700.1 - General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Articles 2 through 5 specify the current automatic vehicle
					 identification (AVI) equipment specifications in use referred to here as the
					 "Title 21 protocol" and Articles 6 through 8 specify new automatic vehicle
					 identification equipment specifications referred to herein as the "6C
					 protocol."
1.
					 Renumbering of former article 1 (sections
					 1700-1701) to article 2 and new
					 article 1 (sections
					 1700.1-1700.3) and section filed
					 11-28-2017; operative 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 1 - Two Automatic Vehicle Identification Equipment Protocols › Section 1700.2 - Operation

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
All toll facility operators shall have the capability to
					 read and process transponders on the roadway using the 6C protocol no later
					 than January 1, 2019.
The Title 21 and 6C protocols shall operate
					 concurrently.
1. New
					 section filed 11-28-2017; operative 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 1 - Two Automatic Vehicle Identification Equipment Protocols › Section 1700.3 - Repeal

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Articles 2 through 5 shall be repealed effective January 1, 2027.
Nothing in these regulations shall preclude the toll facility operators from discontinuing the operation and support of the Title 21 protocol as defined in Articles 2 through 5 at an earlier date if a written request is submitted to and approved by the California Department of Transportation (Caltrans).
Note: Authority cited: Section  27565, Streets and Highways Code. Reference: Sections  27564 and  27565, Streets and Highways Code.
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 1 - Two Automatic Vehicle Identification Equipment Protocols › Section 1701 - Definition of Technical Terms. [Renumbered]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Amendment of subsections (c)-(e), new subsection (o), subsection relettering,
					 and amendment of newly designated subsection (r) filed 5-1-98; operative
					 5-31-98 (Register 98, No. 18).
3. Renumbering of former section
					 1701 to new section
					 1701.2 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 2 - Summary of Key Compatibility Specifications for Automatic Vehicle Identification Equipment › Section 1701.1 - Summary

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The compatibility specifications for automatic vehicle
					 identification (AVI) equipment in Articles 2 through 5 have been developed
					 around two principal components, a reader and a transponder. The minimum role
					 of the reader is to:
1) trigger or
				  activate a transponder.
2) poll the
				  transponder for specific information, and
3) provide an acknowledge message to the
				  transponder after a valid response to the polling message has been received.
A half-duplex communications system is envisioned where the
					 transponder takes its cues from the reader. The specification is meant to
					 define a standard two way communications protocol and to further define an
					 initial set of data records. A summary of the key compatibility specifications
					 found in Articles 2 through 5 are set forth below:
Reader Specifications:
Reader Trigger Signal
33 microseconds of unmodulated RF
Reader Send Mode (Downlink)
Carrier Frequency:
915 ± 13 MHz (subject to FCC assignment)
Carrier Modulation:
Unipolar ASK (Manchester Encoded)
Data Bit Rate:
300 kbps
Reader Specifications:
No. Data Bits:
Application Specific
Field Strength at Transponder Antenna:
500 mV/m (minimum)
Transponder Specifications:
Technology Type:
Modulated Backscatter
Transponder Antenna Polarization:
Horizontal
Field-of-View:
Operation within 90° conical angle
Location:
Front of Vehicle
Transponder Send Mode (Uplink)
Carrier Frequency:
Same as Reader Send Mode
Carrier Modulation:
Subcarrier AM
Subcarrier Modulation:
FSK
Subcarrier Frequencies:
600 kHz ± 10% and 1200 kHz ± 10%
Data Bit Rate:
300 kbps
No. Data Bits:
Application Specific
Receiver Field-Strength
Threshold:
500 mV/m ± 50 mV/m (minimum)
NOTE: All mV/m specifications are in RMS voltage.
1.
					 Renumbering and amendment of section
					 1700 to new section
					 1701.1 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 2 - Summary of Key Compatibility Specifications for Automatic Vehicle Identification Equipment › Section 1701.2 - Definition of Technical Terms

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The following are definitions of technical terms used
					 throughout Articles 2 through 5:
(a)
				  AM - Amplitude modulation
(b) ASK -
				  Amplitude shift keying
(c) BCC -
				  Block check character
(d) CRC -
				  Cyclic redundancy check
(e) CW -
				  Continuous wave
(f) EIRP -
				  effective isotropically radiated power = gain x net power
(g) EM - Electromagnetic
(h) FCC - Federal Communications
				  Commission
(i) FSK -
				  Frequency-shift keying
(j) ID -
				  Device identification
(k) kbps -
				  kilobits per second
(l) kHz -
				  kilohertz (103 hertz)
(m) kph - kilometer per hour
(n) MHz - megahertz
(o) m/Vm - milliVolts/meter
(p) Reader - A fixed-position reader,
				  associated transmit and receive (Tx/Rx) antenna(s), and modulation and
				  demodulation hardware and software.
(q) RF - Radio frequency
(r) Transponders - Electronic devices that
				  contain information which can be communicated to the reader. The transponders
				  may have the capability to read and write information.
(s) CTOC-California Toll Operators
				  Committee--A collaborative organization composed of California's toll facility
				  operators/owners.
CTOC is the primary resource for interoperability and
					 coordination among tolling facilities, and education and advocacy regarding
					 tolling in California.
1.
					 Renumbering and amendment of former section
					 1701 to new section
					 1701.2 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 3 - Introduction › Section 1702.1 - Objectives

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Articles 3 through 5 define the compatibility requirements
					 for automatic vehicle identification (AVI) equipment. Supplemental agency
					 (e.g., toll authority) specifications will detail the technical, environmental,
					 and operational specifics for each site implementation. The immediate mandate
					 for this compatibility specification is for electronic toll collection.
AVI equipment will essentially consist of two functional
					 elements: vehicle-mounted transponders and fixed-position reader units. The
					 specification defines a standard communications protocol and further defines an
					 initial set of data records. The initial data records are designed for
					 voluntary implementations of electronic toll collection.
Transponder Specifications:
It is further envisioned that more complex data records
					 will be developed to handle anonymous transactions, secure funds transfers,
					 information transfers, and other transactions between the reader and the
					 transponder that will be defined as needed. The transponders may have the
					 capability to read and write information. The California Department of
					 Transportation (Caltrans) shall function as the standards monitoring authority
					 to authorize the use of new record types and to assign record type numbers to
					 newly authorized records. Caltrans shall pass this responsibility to an
					 appropriate standards setting organization when one is established and
					 recognized with Caltrans retaining representation in the standards setting
					 organization.
Nothing in these regulations shall preclude the addition of
					 functions and technologies to the transponder and/or reader systems.
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Amendment adding last sentence filed 2-16-93; operative 3-18-93 (Register 93,
					 No. 8).
3. Amendment of first and fourth paragraphs filed 5-1-98;
					 operative 5-31-98 (Register 98, No. 18).
4. Renumbering of former
					 article 2.0 (sections
					 1702.1-1703) to article 3
					 (sections 1702.1-1702.2) and amendment of
					 section filed 11-28-2017; operative 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 3 - Introduction › Section 1703 - Definitions for Data Codes. [Renumbered]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Amendment of subsections (a), (c), (e) and (g) filed 5-1-98; operative 5-31-98
					 (Register 98, No. 18).
3. Renumbering of former section
					 1703 to new section
					 1702.2 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 4 - Reader Specifications › Section 1703.1 - General

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The reader will transmit a RF trigger pulse to activate
					 (turn-on) the transponders. After a time delay, the reader then will transmit
					 an encoded signal, referred to as the polling message which, upon detection and
					 decoding by the transponder, will provide initial information to the
					 transponder including the type of transaction the reader wishes to
					 conduct.
The reader will then transmit an unmodulated CW.RF signal
					 for the transponder to modulate with a data message while backscattering to the
					 reader. The reader may repeat the polling-to-backscattering sequence until it
					 obtains an error free data message from the transponder. The reader will then
					 transmit an encoded acknowledge message to the transponder providing status
					 information and requesting that the transponder not respond to the same polling
					 message again for a fixed time period.
1.
					 Renumbering of former article 3 (sections
					 1704.1-1704.6) to article 4
					 (sections 1703.1-1703.6) and renumbering of
					 former section
					 1704.1 to new section
					 1703.1 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 4 - Reader Specifications › Section 1703.2 - RF Carrier Frequency

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The RF carrier frequency shall be taken from the 915 MHz
					 ± 13 MHz range. Specific frequency and bandwidth depend upon pending FCC
					 assignment.
1.
					 Renumbering of former section
					 1704.2 to new section
					 1703.2 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 4 - Reader Specifications › Section 1703.3 - Reader Antenna Specifications

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Reader
				  Antenna Polarizations.
The reader transmit and receive antennas shall have
					 predominant EM field components that are co-polarized to the horizontal
					 polarization specified for the transponder transmit and receive antennas in
					 section 1704.3(a).
					 Horizontal, linear, circular or elliptical polarizations are allowed.
(b) Reader Antenna Location.
The reader antenna location is site specific.
1.
					 Renumbering of former section
					 1704.3 to new section
					 1703.3, including amendment of
					 subsection (a), filed 11-28-2017; operative 1-1-2018 (Register 2017, No.
					 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 4 - Reader Specifications › Section 1703.4 - Reader-to-Transponder Trigger Pulse

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Trigger
				  Pulse Definition.
The reader shall provide a wakeup trigger for the
					 transponder. The trigger shall consist of a 33 microsecond long, RF pulse at
					 the assigned carrier frequency that is modulated with a continuous string of
					 ones. The trigger pulse shall be followed immediately by a delay (i.e., no RF
					 transmission) of 100 microseconds in duration. The wakeup pulse is intended to
					 signal a dormant transponder to fully activate itself.
(b) Trigger Pulse Field Strength.
The required horizontal component of field strength
					 produced by the trigger pulse at the maximum downlink range (site dependent) of
					 the reader shall be greater than 500 mV/m.
1.
					 Renumbering of former section
					 1704.4 to new section
					 1703.4, including amendment of
					 subsection (a), filed 11-28-2017; operative 1-1-2018 (Register 2017, No.
					 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 4 - Reader Specifications › Section 1703.5 - Reader Communications Protocol

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) AM
				  Modulation Scheme.
The downlink (reader-to-transponder) modulation scheme
					 shall be unipolar ASK of the RF carrier using Manchester encoding. A data bit
					 '1' is transmitted by sending an RF pulse during the first half of the bit
					 period and no signal during the second half, while for a '0' data bit the
					 reverse order is used; i.e., no signal during the first half of the bit period
					 and an RF pulse transmission during the second half.
(b) Data Bit Rates.
The data bit rate for reader-to-transponder messages shall
					 be 300 kbps.
(c) Field
				  Strength.
The field strength of a reader data message at the
					 transponder shall be greater than 500 mV/m.
(d) Standard Reader Data Message Format.
The standard portion of a reader data message shall consist
					 of a header and transaction record type code. The subsequent length, data
					 content, and error detection scheme shall then be established by the definition
					 for that transaction record type.
(e) Reader Data Message Formats for AVI.
There may be several reader-to-transponder data message
					 formats. The format is determined by the transaction record type code sent by
					 the reader. The following is the reader-to-transponder message format presently
					 specified for AVI electronic toll collection applications:
(1) Reader Transaction Record Type 1 (Polling
				  Message).
The polling message (which follows the 100 microsecond
					 delay after the trigger signal) tells the transponder the type of transaction
					 the reader wishes to conduct. For AVI electronic toll collection applications,
					 reader transaction record type 1 (polling message) also would identify the
					 agency or toll authority. For AVI applications, the reader-to-transponder type
					 1 polling message shall be structured using the following ordered data bit
					 fields:
Field Definition
No. Bits
Hexadecimal Value
Header Code
Selsyn
8
AA
Flag
4
C
Transaction Record Type Code
16
8000
Agency Code
16
Error Detection Code
16
Total: 60
(2) Reader Transaction Record Type 2
				  (Acknowledge Message).
A reader-to-transponder acknowledge data message shall be
					 provided to inform specific transponders that they have been successfully
					 processed and to stop responding to further identical reader polling requests.
					 The acknowledge message is used to terminate the transaction, and is only sent
					 if the transaction is successfully completed. Reader transaction record type 2
					 (acknowledge message) shall consist of the following ordered data bit
					 fields:
Field Definition
No. Bits
Hexadecimal Value
Header
Selsyn
8
AA
Flag
4
C
Transaction Record Type Code
16
C000
Transponder ID Number
32
Reader ID Number
32
Transaction Status Code
16
Error Detection Code
16
Total: 124
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 4 - Reader Specifications › Section 1703.6 - Reader Field Strength for Modulated Backscattering

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The electric field strength produced by a reader is a
					 function of the EIRP. The EIRP required to detect a modulated backscattered RF
					 signal from a transponder with a reasonably high signal-to-noise ratio is
					 determined by the maximum range to the transponder and the detection
					 sensitivity of the reader receiver plus any gain margin. If the overall gain
					 characteristics of the transponder were held constant, the required EIRP then
					 becomes site dependent.
The electric field strength to accomplish modulated
					 backscattering is expected to be lower than that required for triggering a
					 transponder or for sending a reader data message. Sensitive reader receivers
					 likely will be necessary, however, such as that obtained with homodyne or
					 heterodyne technology.
1.
					 Renumbering of former section
					 1704.6 to new section
					 1703.6 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 5 - Transponder Specifications › Section 1704.1 - General Description

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Transponders will be encoded with unique identification
					 data together with other coded data as described in this section. On passing
					 through any AVI reader zone, the transponder will provide the coded data to the
					 reader only on receipt of a valid reader polling command. Transponders must be
					 capable of being turned on and off as specified herein. Transponders must be
					 capable of two-way data communications. Transponders may be portable. The
					 transponders may have the capability to read and write information.
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Amendment filed 5-1-98; operative 5-31-98 (Register 98, No. 18).
3.
					 Renumbering of former article 4 (sections
					 1705.1-1705.8) to article 5
					 (sections 1704.1-1704.8), renumbering of
					 former section
					 1704.1 to new section
					 1703.1 and renumbering of former
					 section 1705.1 to section
					 1704.1 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 5 - Transponder Specifications › Section 1704.2 - Transponder RF Carrier Frequency

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The transponder RF carrier frequency in a backscatter
					 system is identical to that used by the reader; the frequency will be in the
					 range of 915 MHz ± 13 MHz. The transponder shall be capable of operating
					 over the full ± 13 MHz band to allow site flexibility in reader
					 implementation.
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Renumbering of former section
					 1704.2 to section
					 1703.2 and renumbering of former
					 section 1705.2 to section
					 1704.2 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 5 - Transponder Specifications › Section 1704.3 - Transponder Transmit and Receive Antennas

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Antenna
				  Polarizations.
The transponder transmit and receive antennas shall have EM
					 field components that are predominantly horizontally polarized transverse to
					 normal traffic flow. Horizontal, linear, circular or elliptical polarizations
					 are allowed.
(b) Antenna
				  Field of Views.
The transponder transmit and receive antennas shall have a
					 field of view which is a 90° cone in front of the vehicle. The projection
					 of the horizontal component of the cone's axis shall be parallel to the lane
					 and the vertical component of the cone's axis shall be 35°
					 horizontal.
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Amendment of subsection (a) filed 5-1-98; operative 5-31-98 (Register 98, No.
					 18).
3. Renumbering of former section
					 1704.3 to section
					 1703.3 and renumbering of former
					 section 1705.3 to section
					 1704.3 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 5 - Transponder Specifications › Section 1704.4 - Transponder Activation

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Activation
				  Timing.
Within 1 millisecond of entry into the reader's modulated
					 RF field, a transponder shall be fully activated and ready to decode the
					 polling message from the reader within 100 microseconds of receipt of a 33
					 microsecond long modulated RF trigger pulse from the reader.
(b) Activation Timing for Battery Power
				  Management.
As an alternative to 1704.4(a), a delay of 20 additional
					 milliseconds is permissible for a transponder using multiple-stage activation
					 to conserve battery life. Within 21 milliseconds of entry into the reader's
					 modulated RF field, such a transponder shall be fully activated and ready to
					 decode the polling message from the reader within 100 microseconds of receipt
					 of a 33 microsecond long modulated trigger pulse from the reader.
(c) Activation Field Strength.
The transponder receiver shall be capable of recognizing
					 and acting on a trigger signal and polling message when the free-space field
					 strength at the transponder location exceeds 550 mV/m and will not respond to
					 field strengths below 450 mV/m (Electric field strengths are to be measured in
					 free-spece and in the absence of any vehicle). After completion of the polling
					 message, the transponder shall begin modulating and backscattering RF with
					 continuous zero bits. 100 microseconds after completion of the polling message,
					 the transponder shall begin transmitting its message. If a newly activated
					 transponder does not immediately receive a polling message, it shall remain
					 activated and ready to receive a subsequent reader message for at least 20
					 milliseconds.
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Renumbering of former section
					 1704.4 to section
					 1703.4 and renumbering of former
					 section 1705.4 to section
					 1704.4, including amendment of
					 subsection (b), filed 11-28-2017; operative 1-1-2018 (Register 2017, No.
					 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 5 - Transponder Specifications › Section 1704.5 - Transponder Communications Protocol

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) Subcarrier
				  Modulation Scheme.
The transponder-to-reader (uplink) modulation scheme shall
					 be amplitude modulation of an RF carrier backscatter created by varying the
					 reflecting crossection of the antenna as seen by the incident carrier signal.
					 The antenna crossection shall be varied between upper and lower limits with a
					 50 percent duty cycle and rise and fall times of less than 75 nanoseconds. The
					 transponder baseband message signal shall modulate the subcarrier using FSK
					 modulation with a center frequency of 900 kHz and frequency deviation of
					 ± 300 kHz. The lower and upper subcarrier frequencies correspond to data
					 bits '0' and '1' respectively. The message information is conveyed by the
					 subcarrier modulation frequencies of the transponder backscattered signal and
					 not by amplitude or phase.
(b) Data Bit Rates.
The data bit rate for transponder-to-reader data messages
					 shall be 300 kbps.
(c)
				  Field Strength.
The field strength at which a transponder data message is
					 transmitted using backscatter technology is dependent upon the incident field
					 strength from the reader, the transponder receive and transmit antenna gains,
					 and any RF gain internal to the transponder. The transponder and antenna gain
					 taken together shall effect a change in the backscattering cross section of
					 between 45 and 100 square centimeters.
(d) Standard Transponder Data Message Format.
The standard portion of a transponder data message shall
					 consist of a header and transaction record type code. The subsequent length,
					 data content, and error detection scheme shall then be established by the
					 definition for that transaction record type.
(e) Transponder Data Message Formats for AVI
				  Toll Collection.
There may be numerous transponder-to-reader data message
					 formats. The format is determined by the transaction record type code sent by
					 the transponder. The following is the reader-to-transponder message format
					 presently specified for AVI electronic toll collection applications:
(1) Transponder Transaction Type 1 (Data
				  Message).
Transponder transaction type 1 (data message) allows for
					 unencrypted transponder ID numbers to be transmitted. Type 1 (data messages)
					 shall be structured using the following ordered data bit fields:
Field Definition
No. Bits
Hexadecimal Value
Header Code
Selsyn
8
AA
Flag
4
C
Transaction Record Type Code
16
1
Transponder ID Number
32
Error Detection Code
16
Total: 76
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 5 - Transponder Specifications › Section 1704.6 - Transponder Response to Reader Acknowledge Message

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The transponder shall discontinue responding to identical
					 reader polling requests for a period of 10 seconds once a valid reader
					 acknowledgement message has been received. The transponder shall, however,
					 respond to polling messages that are not identical to the polling messages that
					 lead to the valid acknowledgement.
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Renumbering of former section
					 1704.6 to section
					 1703.6 and renumbering and
					 amendment of former section
					 1705.6 to section
					 1704.6 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 5 - Transponder Specifications › Section 1704.7 - Multiple Transponder Responses to a Reader Polling Message

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Each transponder data message transmittal must be in
					 response to a reader polling message.
1.
					 Renumbering of former section
					 1705.7 to new section
					 1704.7 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 5 - Transponder Specifications › Section 1704.8 - Transponder Positioning

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
Transponders shall be positioned at the front of the
					 vehicle with a clear line of sight to the reader antenna without degrading the
					 performance of the reader-transponder system below minimum specified standards.
					 As a minimum, transponders shall operate up to a maximum of 76cm (30") offset
					 from the longitudinal center line of the vehicle.
The front of the vehicle shall be defined as that portion
					 of the vehicle from the driver's eyes forward.
1.
					 Renumbering of former section
					 1705.8 to new section
					 1704.8 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 6 - Summary of New Automatic Vehicle Identification Equipment › Section 1705.1 - Definition of Terms

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
The following are definitions of terms used throughout
					 Articles 6 through 8:
(a) Reader--A
				  device with associated transmit and receive (Tx/Rx) antenna(s), and modulation
				  and demodulation hardware and software.
(b) RF--Radio frequency
(c) Transponders--Electronic devices that
				  contain information which can be communicated to the reader. The transponders
				  may have the capability to store new or modified data received from a
				  reader.
(d) CTOC--California Toll
				  Operators Committee-Collaborative organization composed of California's toll
				  facility operators/owners. CTOC is the primary resource for interoperability
				  and coordination among tolling facilities, and education and advocacy regarding
				  tolling in California.
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Amendment filed 5-1-98; operative 5-31-98 (Register 98, No. 18).
3.
					 Change without regulatory effect amending section filed 7-10-98 pursuant to
					 section 100, title 1, California Code of
					 Regulations (Register 98, No. 28).
4. Renumbering of former article
					 4 (sections
					 1705.1-1705.8) to article 5, new
					 article 6 (section
					 1705.1), renumbering of former
					 section 1705.1 to section
					 1704.1 and new section
					 1705.1 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.
California Code of Regulations › Title 21 - Public Works › Division 2 - Department of Transportation › Chapter 16 - Compatibility Specifications for Automatic Vehicle Identification Equipment › Article 6 - Summary of New Automatic Vehicle Identification Equipment › Section 1705.2 - Transponder RF Carrier Frequency. [Renumbered]

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
1. New
					 section filed 6-26-92; operative 7-27-92 (Register 92, No. 26).
2.
					 Renumbering of former section
					 1705.2 to section
					 1704.2 filed 11-28-2017; operative
					 1-1-2018 (Register 2017, No. 48).
Note: Authority cited: Section
						27565,
						Streets and Highways Code. Reference: Sections
						27564
						and
						27565,
						Streets and Highways Code.