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DOT/FAA RIN: 2120-AK34 Publication ID: Fall 2023 
Title: Interior Parts and Components Fire Protection for Transport Category Airplanes 

This rulemaking would convert those flammability regulations from detailed, prescriptive requirements into simpler, performance-based standards. The final rule would divide these standards into two categories: those designed to protect the airplane and its occupants from the hazards of in-flight fires, and those designed to protect the airplane and its occupants from the hazards caused by post-crash fires. In addition, the final rule would remove test methods from the regulations and allows applicants, in certain cases, to demonstrate compliance either without conducting tests or by providing independent substantiation of the flammability characteristics of a proposed material. Based on substantive comments received on the notice of proposed rulemaking (NPRM), the FAA would clarify its position regarding smoke emissions testing, including some changes to the cost-benefit analysis. This rulemaking would offer interested persons an opportunity to comment on changes to that NPRM.

Agency: Department of Transportation(DOT)  Priority: Substantive, Nonsignificant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: 14 CFR 25    14 CFR 27    14 CFR 29    14 CFR 91    14 CFR 121    14 CFR 125    14 CFR 135   
Legal Authority: 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  07/03/2019  84 FR 31747   
NPRM Comment Period End  10/01/2019 
NPRM Comment Period Extended  10/02/2019  84 FR 52392   
Supplemental NPRM  08/17/2023  88 FR 55941   
Supplemental Comment Period End  10/02/2023 
Supplemental NPRM Comment Period Extended  10/02/2023  88 FR 67683   
Supplemental NPRM Extended Comment Period End  11/30/2023 
Analyzing Comments  01/00/2024 
Additional Information: None.
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:
Jeff Gardlin
Aircraft Certification Service
Department of Transportation
Federal Aviation Administration
2200 S 216th Street, Des Moines, WA 98198-6547,
Des Moines, WA 98198