Document ID: FAA-2017-0737-0002
Agency: faa
Document Type: Rule
Title: Establishment of Class E Airspace: Twin Bridges, MT
Posted Date: 2017-12-06T05:00Z

[Federal Register Volume 82, Number 233 (Wednesday, December 6, 2017)]
[Rules and Regulations]
[Pages 57541-57543]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-26202]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Docket No. FAA-2017-0737; Airspace Docket No. 16-ANM-12]

Establishment of Class E Airspace, Twin Bridges, MT

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: This action establishes Class E airspace extending upward from 
700 and 1,200 feet above the surface at Twin Bridges Airport, Twin 
Bridges, MT, to accommodate the development of instrument flight rules 
(IFR) operations under standard instrument approach and departure 
procedures at the airport, for the safety and management of aircraft 
within the National Airspace System. This action also makes a minor 
correction to one geographic coordinate of the airport reference point.

DATES: Effective 0901 UTC, February 1, 2018. The Director of the 
Federal Register approves this incorporation by reference action under 
Title 1, Code of Federal Regulations, part 51, subject to the annual 
revision of FAA Order 7400.11 and publication of conforming amendments.

ADDRESSES: FAA Order 7400.11B, Airspace Designations and Reporting 
Points, and subsequent amendments can

[[Page 57542]]

be viewed online at http://www.faa.gov/air_traffic/publications/. For 
further information, you can contact the Airspace Policy Group, Federal 
Aviation Administration, 800 Independence Avenue SW., Washington, DC 
20591; telephone: (202) 267-8783. The Order is also available for 
inspection at the National Archives and Records Administration (NARA). 
For information on the availability of this material at NARA, call 
(202) 741-6030, or go to https://www.archives.gov/federal-register/cfr/ibr-locations.html.
    FAA Order 7400.11, Airspace Designations and Reporting Points, is 
published yearly and effective on September 15.

FOR FURTHER INFORMATION CONTACT: Tom Clark, Federal Aviation 
Administration, Operations Support Group, Western Service Center, 1601 
Lind Avenue SW., Renton, WA 98057; telephone (425) 203-4511.

SUPPLEMENTARY INFORMATION: 

Authority for This Rulemaking

    The FAA's authority to issue rules regarding aviation safety is 
found in Title 49 of the United States Code. Subtitle I, Section 106 
describes the authority of the FAA Administrator. Subtitle VII, 
Aviation Programs, describes in more detail the scope of the agency's 
authority. This rulemaking is promulgated under the authority described 
in Subtitle VII, Part A, Subpart I, Section 40103. Under that section, 
the FAA is charged with prescribing regulations to assign the use of 
airspace necessary to ensure the safety of aircraft and the efficient 
use of airspace. This regulation is within the scope of that authority 
as it establishes Class E airspace extending upward from 700 feet above 
the earth at Twin Bridges Airport, Twin Bridges, MT, for the safety of 
aircraft and management of airspace within the National Airspace 
System.

History

    On August 28, 2017, the FAA published a notice of proposed 
rulemaking (NPRM) in the Federal Register (82 FR 40740) Docket No. FAA-
2017-0737 to establish Class E airspace extending upward from 700 feet 
above the surface at Twin Bridges Airport, Twin Bridges, MT. Interested 
parties were invited to participate in this rulemaking effort by 
submitting written comments on the proposal to the FAA. No comments 
were received.
    Subsequent to publication, the FAA discovered a rounding error 
equal to one second of latitude in the geographic coordinates of the 
airport listed in the NPRM. The coordinates are corrected (from lat. 
45[deg]32'07'' N., to lat. 45[deg]32'08'' N.) in this action.
    Class E airspace designations are published in paragraph 6005 of 
FAA Order 7400.11B, dated August 3, 2017, and effective September 15, 
2017, which is incorporated by reference in 14 CFR 71.1. The Class E 
airspace designation listed in this document will be published 
subsequently in the Order.

Availability and Summary of Documents for Incorporation by Reference

    This document amends FAA Order 7400.11B, Airspace Designations and 
Reporting Points, dated August 3, 2017, and effective September 15, 
2017. FAA Order 7400.11B is publicly available as listed in the 
ADDRESSES section of this document. FAA Order 7400.11B lists Class A, 
B, C, D, and E airspace areas, air traffic service routes, and 
reporting points.

The Rule

    This amendment to Title 14, Code of Federal Regulations (14 CFR) 
part 71 establishes Class E airspace extending upward from 700 feet 
above the surface within a 4.1-mile radius of Twin Bridges Airport, 
Twin Bridges, MT, and within 4.1 miles each side of the 011[deg] 
bearing from the airport extending to 12 miles north of the airport, 
and within 4.1 miles each side of the 195[deg] bearing from the airport 
extending to 13.5 miles south of the airport.
    Additionally, this action establishes Class E airspace extending 
upward from 1,200 feet above the surface within a 20-mile radius of 
Twin Bridges Airport. This airspace is necessary to support the new 
standard instrument approach procedures for runways 17 and 35 for the 
safety and management of IFR operations at the airport.
    Also, the airport reference point latitude coordinate is corrected 
to ``lat. 45[deg]32'08'' N.,'' from ``lat. 45[deg]32'07'' N.'' Except 
for this correction, this rule is the same as published in the NPRM.

Regulatory Notices and Analyses

    The FAA has determined that this regulation only involves an 
established body of technical regulations for which frequent and 
routine amendments are necessary to keep them operationally current, is 
non-controversial and unlikely to result in adverse or negative 
comments. It, therefore: (1) Is not a ``significant regulatory action'' 
under Executive Order 12866; (2) is not a ``significant rule'' under 
DOT Regulatory Policies and Procedures (44 FR 11034; February 26, 
1979); and (3) does not warrant preparation of a Regulatory Evaluation 
as the anticipated impact is so minimal. Since this is a routine matter 
that only affects air traffic procedures and air navigation, it is 
certified that this rule, when promulgated, will not have a significant 
economic impact on a substantial number of small entities under the 
criteria of the Regulatory Flexibility Act.

Environmental Review

    The FAA has determined that this action qualifies for categorical 
exclusion under the National Environmental Policy Act in accordance 
with FAA Order 1050.1F, ``Environmental Impacts: Policies and 
Procedures,'' paragraph 5-6.5a. This airspace action is not expected to 
cause any potentially significant environmental impacts, and no 
extraordinary circumstances exist that warrant preparation of an 
environmental assessment.

Lists of Subjects in 14 CFR Part 71

    Airspace, Incorporation by reference, Navigation (air).

Adoption of the Amendment

    In consideration of the foregoing, the Federal Aviation 
Administration amends 14 CFR part 71 as follows:

PART 71--DESIGNATION OF CLASS A, B, C, D, AND E AIRSPACE AREAS; AIR 
TRAFFIC SERVICE ROUTES; AND REPORTING POINTS

0
1. The authority citation for part 71 continues to read as follows:

    Authority:  49 U.S.C. 106(f), 106(g); 40103, 40113, 40120; E.O. 
10854, 24 FR 9565, 3 CFR, 1959-1963 Comp., p. 389.

Sec.  71.1   [Amended]

0
2. The incorporation by reference in 14 CFR 71.1 of FAA Order 7400.11B, 
Airspace Designations and Reporting Points, dated August 3, 2017, and 
effective September 15, 2017, is amended as follows:

Paragraph 6005 Class E Airspace Areas Extending Upward From 700 
Feet or More Above the Surface of the Earth.

* * * * *

ANM MT E5 Twin Bridges, MT [New]

Twin Bridges Airport, MT
    (Lat. 45[deg]32'08'' N., long. 112[deg]18'08'' W.)

    That airspace extending upward from 700 feet above the surface 
within a 4.1-mile radius of Twin Bridges Airport, and within 4.1 
miles each side of the 011[deg] bearing from the airport extending 
to 12 miles north of the airport, and within 4.1 miles each side of 
the 195[deg] bearing from the airport extending to 13.5 miles south 
of the airport; and that airspace upward from 1,200 feet above the 
surface within a 20-mile radius of Twin Bridges Airport.

[[Page 57543]]

    Issued in Seattle, Washington, on November 21, 2017.
Brian J. Johnson,
Acting Group Manager, Operations Support Group, Western Service Center.
[FR Doc. 2017-26202 Filed 12-5-17; 8:45 am]
 BILLING CODE 4910-13-P