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DOT/FAA RIN: 2120-AL15 Publication ID: Spring 2022 
Title: High Elevation Airport Operations 

This rulemaking would amend certain airworthiness regulations applicable to cabin pressurization systems and oxygen dispensing equipment on transport category airplanes to allow certification of airplane designs intended for operations into or out of airports with elevations at or above 8,000 feet above sea level. Currently, the FAA makes and documents equivalent level of safety (ELOS) findings to the cabin pressurization requirements in section 25.841(a) and the cabin pressure altitude warning requirements in section 25.841(b)(6), when an airplane manufacturer or modifier proposes that the FAA certify cabin pressurization systems used on airplanes for operations into or out of airports with elevations at or above 8,000 feet. In addition, the FAA grants exemptions from the automatic oxygen mask presentation requirements in section 25.1447(c)(1) for operations into or out of airports with elevations at or above 13,000 feet. This rulemaking would relieve the burden on industry and the FAA that results from project specific ELOS requests and petitions for exemption to accommodate operations at high elevation airports for transport category airplanes.

Agency: Department of Transportation(DOT)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Final Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 14 CFR 25   
Legal Authority: 49 U.S.C. 106(f)    49 U.S.C. 106(g)    49 U.S.C. 40113    49 U.S.C. 44701    49 U.S.C. 44702    49 U.S.C. 44704   
Legal Deadline:  None
Action Date FR Cite
NPRM  04/05/2019  84 FR 13565   
NPRM Comment Period End  06/04/2019 
Final Rule  04/00/2023 
Additional Information: This action is deregulatory.
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL:   Public Comment URL:  
RIN Data Printed in the FR: No 
Agency Contact:
Robert Hettman
Department of Transportation
Federal Aviation Administration
2200 S 216th Street,
Des Moines, WA 98098