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DOT/FAA RIN: 2120-AM24 Publication ID: 2026 
Title: ●Flight Operations: Pilot requirements; Use of oxygen 
Abstract:

FAA proposes to raise the altitudes at which a pilot is required to don an oxygen mask for commuter and on demand operations, as directed by the 2024 FAA Reauthorization Act, and revise the pilot oxygen mask requirements applicable to general aviation operations in pressurized aircraft. The proposed amendments would allow the operation of airplanes at higher altitudes without requiring at least one pilot at the controls to wear and use an oxygen mask. If adopted, these proposed changes would reduce regulatory and economic burdens on airplane operators by removing certain restrictions pertaining to pilots’ use of oxygen masks.

 
Agency: Department of Transportation(DOT)  Priority: Substantive, Nonsignificant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
EO 14192 Designation: Deregulatory 
CFR Citation: 14 CFR 91    14 CFR 135   
Legal Authority: 49 U.S.C. 106(f)    49 U.S.C. 40101    49 U.S.C. 40105   
Legal Deadline:
Action Source Description Date
NPRM  Statutory    05/16/2025 
Timetable:
Action Date FR Cite
NPRM  10/00/2026 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: Businesses  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: https://www.regulations.gov   Public Comment URL: https://www.regulations.gov  
RIN Data Printed in the FR: No 
Agency Contact:
Chris Morris
Department of Transportation
Federal Aviation Administration
800 Independence Avenue SW,
Washington, DC 20591
Phone:202 267-4418
Email: chris.morris@faa.gov