[Federal Register Volume 90, Number 69 (Friday, April 11, 2025)]
[Rules and Regulations]
[Pages 15393-15394]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-06177]



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Rules and Regulations
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains regulatory documents 
having general applicability and legal effect, most of which are keyed 
to and codified in the Code of Federal Regulations, which is published 
under 50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by the Superintendent of Documents. 

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Federal Register / Vol. 90, No. 69 / Friday, April 11, 2025 / Rules 
and Regulations

[[Page 15393]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 71

[Docket No. FAA-2023-2423; Airspace Docket No. 23-ANM-63]
RIN 2120-AA66


Modification of Class D and E Airspace; Bozeman Yellowstone 
International Airport, Bozeman, MT

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: This action modifies the Class D surface area airspace, Class 
E airspace area designated as surface area, Class E airspace area 
designated as an extension to a Class D or Class E surface area, and 
the Class E airspace area extending upward from 700 feet above the 
surface of the earth at Bozeman Yellowstone International Airport, 
Bozeman, MT. These actions support the safety and management of visual 
flight rules (VFR) and instrument flight rules (IFR) operations at the 
airport.

DATES: Effective date 0901 UTC, August 7, 2025. The Director of the 
Federal Register approves this incorporation by reference action under 
1 CFR part 51, subject to the annual revision of FAA Order JO 7400.11 
and publication of conforming amendments.

ADDRESSES: A copy of the Notice of Proposed Rulemaking (NPRM), all 
comments received, this final rule, and all background material may be 
viewed online at www.regulations.gov using the FAA Docket number. 
Electronic retrieval help and guidelines are available on the website. 
It is available 24 hours each day, 365 days each year.
    FAA Order JO 7400.11J, Airspace Designations and Reporting Points, 
and subsequent amendments can be viewed online at www.faa.gov/air_traffic/publications/. You may also contact the Rules and 
Regulations Group, Policy Directorate, Federal Aviation Administration, 
600 Independence Avenue SW, Washington, DC 20597; telephone: (202) 267-
8783.

FOR FURTHER INFORMATION CONTACT: Nathan A. Chaffman, Federal Aviation 
Administration, Western Service Center, Operations Support Group, 2200 
S 216th Street, Des Moines, WA 98198; telephone (206) 231-3460.

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 
the 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 modifies Class D and Class E airspace to support VFR 
and IFR operations at Bozeman Yellowstone International Airport, 
Bozeman, MT.

History

    The FAA published a notice of proposed rulemaking for Docket No. 
FAA-2023-2423 in the Federal Register (90 FR 8001; January 23, 2025), 
proposing to modify Class D and Class E airspace at Bozeman Yellowstone 
International Airport, Bozeman, MT. Interested parties were invited to 
participate in this rulemaking effort by submitting written comments on 
the proposal to the FAA. Three comments were received. Two comments 
were in favor of the proposal and one comment was not germane to the 
airspace action.

Differences From the NPRM

    Subsequent to the publication of the NPRM and effective February 
10, 2025, the FAA's definition of the acronym ``NOTAM'' changed from 
``Notice to Air Missions'' to ``Notice to Airmen.'' As such, the part-
time language within the Class D and Class E surface area airspace 
legal descriptions should read ``This Class D/E airspace area is 
effective during the specific dates and times established in advance by 
a Notice to Airmen.'' Additionally, the legal description of the Class 
E airspace area designated as an extension to a Class D or Class E 
airspace area within the NPRM now contains part-time language to better 
align with FAA regulations.

Incorporation by Reference

    Class D, E2, E4, and E5 airspace designations are published in 
paragraphs 5000, 6002, 6004, and 6005, respectively, of FAA Order JO 
7400.11, Airspace Designations and Reporting Points, which is 
incorporated by reference in 14 CFR 71.1 on an annual basis. This 
document amends the current version of that order, FAA Order JO 
7400.11J, dated July 31, 2024, and effective September 15, 2024. These 
amendments will be published in the next update to FAA Order JO 
7400.11. FAA Order JO 7400.11J is publicly available as listed in the 
ADDRESSES section of this document. FAA Order JO 7400.11J lists Class 
A, B, C, D, and E airspace areas, air traffic service routes, and 
reporting points.

The Rule

    The FAA is amending 14 CFR part 71 by modifying the Class D surface 
area airspace, the Class E airspace area designated as surface area, 
the Class E airspace areas designated as an extension to a Class D or 
Class E surface area, and the Class E airspace area extending upward 
from 700 feet above the surface of the earth at Bozeman Yellowstone 
International Airport, Bozeman, MT.
    The radius of the Class D surface area and Class E airspace area 
designated as surface area is expanded to 5.1 miles to appropriately 
contain departures until reaching the next adjacent airspace. The 
southeast extension of the Class D surface area and Class E airspace 
area designated as surface area is removed as it is no longer needed.
    In addition, the Class E airspace designated as an extension to a 
Class D or Class E surface area northwest of the airport is lengthened 
by .8 miles and widened by one mile to better contain arriving IFR 
aircraft on the very high frequency omnidirectional range (VOR) Runway 
(RWY) 12 approach while below 1,000 feet above the surface.
    Finally, the central radius of the Class E airspace extending 
upward from 700 feet above the surface is expanded to 7.2 miles to 
better contain IFR aircraft

[[Page 15394]]

departing on the BOZEMAN SIX DEPARTURE (OBSTACLE) until reaching 1,200 
feet above the surface. The southeast extension centered on the 
131[deg] bearing is lengthened and realigned to the 136[deg] bearing to 
better contain departing IFR aircraft on the BOBKT FIVE DEPARTURE (Area 
Navigation [RNAV]) until reaching 1,200 feet above the surface and IFR 
arrivals on the RNAV (Required Navigation Performance [RNP]) Z RWY 30 
approach below 1,500 feet above the surface. The southeast extension 
centered on the 155[deg] bearing is expanded by .7 miles, shortened by 
.1 miles, and realigned to the 165[deg] bearing to better contain IFR 
departures until reaching 1,200 feet above the surface and IFR arrivals 
on the RNAV (RNP) Z RWY 30 approach below 1,500 feet above the surface. 
The northwest extension is widened by .6 miles and shortened by 1 mile 
to 4.2 miles on either side of the 316[deg] bearing, extending from the 
7.2-mile radius to 14.7 miles northwest of the airport to contain the 
hold-in-lieu-of procedure turn for the instrument landing system (ILS) 
localizer (LOC) RWY 12 arrival procedure for IFR aircraft descending 
below 1,500 feet above the surface.

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. 
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 does 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 5-6.5.a. 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.

List of Subjects in 14 CFR Part 71

    Airspace, Incorporation by reference, Navigation (air).

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 14 CFR 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 part 71.1 of FAA Order JO 
7400.11J, Airspace Designations and Reporting Points, dated July 31, 
2024, and effective September 15, 2024, is amended as follows:

Paragraph 5000 Class D Airspace

* * * * *

ANM MT D Bozeman, MT [Amended]

Bozeman Yellowstone International Airport, MT
    (Lat. 45[deg]46'38'' N, long. 111[deg]09'01'' W)

    That airspace extending upward from the surface to and including 
7,000 feet MSL within a 5.1-mile radius of the airport. This Class D 
airspace area is effective during the specific dates and times 
established in advance by a Notice to Airmen. The effective date and 
time will thereafter be continuously published in the Chart 
Supplement.
* * * * *

Paragraph 6002 Airspace Areas Designated as Surface Area

* * * * *

ANM MT E2 Bozeman, MT [Amended]

Bozeman Yellowstone International Airport, MT
    (Lat. 45[deg]46'38'' N, long. 111[deg]09'01'' W)

    That airspace extending upward from the surface within a 5.1-
mile radius of the airport. This Class E airspace area is effective 
during the specific dates and times established in advance by a 
Notice to Airmen. The effective date and time will thereafter be 
continuously published in the Chart Supplement.
* * * * *

Paragraph 6004 Airspace Areas Designated as an Extension to a Class 
D or Class E Surface Area

* * * * *

ANM MT E4 Bozeman, MT [Amended]

Bozeman Yellowstone International Airport, MT
    (Lat. 45[deg]46'38'' N, long. 111[deg]09'01'' W)

    That airspace extending upward from the surface within 4.1 miles 
southwest and 3.7 miles northeast of the airport's 316[deg] bearing 
extending from its 5.1-mile radius to 14.5 miles northwest of the 
airport. This Class E airspace area is effective during the specific 
dates and times established in advance by a Notice to Airmen. The 
effective date and time will thereafter be continuously published in 
the Chart Supplement.
* * * * *

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

* * * * *

ANM MT E5 Bozeman, MT [Amended]

Bozeman Yellowstone International Airport, MT
    (Lat. 45[deg]46'38'' N, long. 111[deg]09'01'' W)

    That airspace extending upward from 700 feet above the surface 
within a 7.2-mile radius from the airport, and within 2 miles 
northeast and 1.3 miles southwest of the airport's 136[deg] bearing 
extending from its 7.2-mile radius to 14.8 miles southeast of the 
airport, and within 4.3 miles east and 2 miles west of the airport's 
165[deg] bearing extending from its 7.2-mile radius to 10.5 miles 
south of the airport, and within 4.2 miles either side of the 
airport's 316[deg] bearing extending from its 7.2-mile radius to 
14.7 miles northwest of the airport.
* * * * *

    Issued in Des Moines, Washington, on April 4, 2025.
B.G. Chew,
Group Manager, Operations Support Group, Western Service Center.
[FR Doc. 2025-06177 Filed 4-10-25; 8:45 am]
BILLING CODE 4910-13-P