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 would amend the airway structure as necessary to preserve the safe and efficient flow of air traffic within the National Airspace System.

Comments Invited

The FAA invites interested persons to participate in this rulemaking by submitting written comments, data, or views. Comments are specifically invited on the overall regulatory, aeronautical, economic, environmental, and energy-related aspects of the proposal. The most helpful comments reference a specific portion of the proposal, explain the reason for any recommended change, and include supporting data. To ensure the docket does not contain duplicate comments, commenters should submit only one time if comments are filed electronically, or commenters should send only one copy of written comments if comments are filed in writing.

The FAA will file in the docket all comments it receives, as well as a report summarizing each substantive public contact with FAA personnel concerning this proposed rulemaking. Before acting on this proposal, the FAA will consider all comments it receives on or before the closing date for comments. The FAA will consider comments filed after the comment period has closed if it is possible to do so without incurring expense or delay. The FAA may change this proposal in light of the comments it receives.

Privacy: In accordance with 5 U.S.C. 553(c), DOT solicits comments from the public to better inform its rulemaking process. DOT posts these comments, without edit, including any personal information the commenter provides, to www.regulations.gov, as described in the system of records notice (DOT/ALL-14 FDMS), which can be reviewed at www.dot.gov/​privacy.

Availability of Rulemaking Documents

An electronic copy of this document may be downloaded through the internet at www.regulations.gov. Recently published rulemaking documents can also be accessed through the FAA's web page at www.faa.gov/​air_​traffic/​publications/​airspace_​amendments/​.

You may review the public docket containing the proposal, any comments received and any final disposition in person in the Dockets Operations office (see ADDRESSES section for address, phone number, and hours of operations). An informal docket may also be examined during normal business hours at the office of the Operations Support Group, Central Service Center, Federal Aviation Administration, 10101 Hillwood Parkway, Fort Worth, TX, 76177.

Incorporation by Reference

United States RNAV Routes are published in paragraph 6011 and VOR Federal Airways are published in paragraph 6010 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 proposes to amend the current version of that order, FAA Order JO 7400.11M, dated July 30, 2026, and effective September 15, 2026. These updates would be published in the next update to FAA Order JO 7400.11. FAA Order JO 7400.11M, which lists Class A, B, C, D, and E airspace areas, air traffic service routes, and reporting points, is publicly available as listed in the ADDRESSES section of this document.

Background

Hailey, ID, NDB/DME (HLE) is scheduled to be decommissioned on April 15, 2027. Due to maintenance issues, HLE has been out of service since January 2023. Historically utilized by Friedman Memorial Airport (KSUN) for backup departure procedures, HLE saw minimal operational use, a decline driven largely by the availability of alternative departure routes, even prior to its scheduled decommission. The loss of this Navigational Aid (NAVAID) will affect VOR federal airways V-101 between the Burley, ID, VOR/DME and the SOLDE, ID, Fix and V-484 between HLE and the JEROT, ID, Fix. The establishment of RNAV Route T-337 is proposed as a mitigation to the affected segments of V-484 as the new RNAV route would overlay the segment of V-484 proposed to be revoked. Nearby V-444 would mitigate the loss of the impacted segment of V-101.

The Proposal

The FAA is proposing an amendment to 14 CFR part 71 to establish RNAV route T-337 and amend VOR federal airways V-101 and V-484 near Twin Falls, ID.

T-337: T-337 is proposed as a new RNAV route that would extend between the Twin Falls, ID, VOR/Tactical Air Navigation (VORTAC) and the ENDBE, ID, Waypoint (WP). The waypoint ENDBE is a new waypoint that would be established in place of the Hailey NDB/DME.

V-101: V-101 currently extends between the Gill, CO, VOR/DME and the intersection of the Pocatello, ID, VOR/DME 286 and the Twin Falls VORTAC 355 radials. The FAA is proposing to revoke the segment that extends between the intersection of the Burley, ID, VOR/DME 344 and the Pocatello VOR/DME 286 radials and the intersection of the Pocatello, ID, VOR/DME 286 and the Twin Falls VORTAC 355 radials. As amended, V-101 would extend between the Gill VOR/DME and the Burley VOR/DME.

V-484: V-484 currently extends between the Hailey, ID, NDB and the Alamosa, CO, VORTAC. The FAA is proposing to revoke the segment that extends between the Hailey NDB and the intersection of the Twin Falls VORTAC 007 and Burley VOR/DME 323 radials. As amended, V-484 would extend between the intersection of the Twin Falls VORTAC 007 and the Burley VOR/DME 293 radials and the Alamosa VORTAC. ( printed page 58396)

Regulatory Notices and Analyses

The FAA has determined that this proposed 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 Order 2100.6B, “Rulemaking and Guidance Procedures” (March 10, 2025); and (3) is expected to result in, at most, de minimis costs from compliance with applicable operating requirements or minor flight rerouting for operators choosing to navigate around the controlled airspace. Since these proposed amendments are routine and the expected impact to operators is de minimis, the FAA certifies that this proposed 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

This proposal will be subject to an environmental analysis in accordance with FAA Order 1050.1G, “FAA National Environmental Policy Act Implementing Procedures” prior to any FAA final regulatory action.

The Proposed Amendment

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

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.

2. The incorporation by reference in 14 CFR 71.1 of FAA Order JO 7400.11M, Airspace Designations and Reporting Points, dated July 30, 2026, and effective September 15, 2026, is established as follows:

Paragraph 6011 United States Area Navigation Routes.

Paragraph 6010 VOR Federal Airways.

V-101 [Amended]

From Gill, CO, via Hayden, CO; Vernal, UT; 25 miles, 25 miles 120 MSL, 22 miles 145 MSL, 20 miles 125 MSL, Wasatch, UT; Ogden, UT; 61 miles, 26 miles, 109 MSL; to Burley, ID.

V-484 [Amended]

From INT Twin Falls, ID, 007°; Burley, ID, 293° radials; Twin Falls, 49 miles, 34 miles 114 MSL, Wasatch, UT; 25 miles, 31 miles, 125 MSL, Myton, UT; 14 miles, 79 MSL, 33 miles, 100 MSL, Grand Junction, CO; Blue Mesa, CO; INT Blue Mesa 110° and Alamosa, CO, 339° radials; to Alamosa.

91 FR 58394