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DOT/FAA RIN: 2120-AL29 Publication ID: Spring 2025 
Title: Domestic Noise Certification of Supersonic Aircraft 
Abstract:

This action would add new supersonic airplanes to the applicability of noise certification regulations, establish a standard for supersonic aircraft noise certification under 14 CFR Part 36, amend 14 CFR 91.817, and repeal 14 CFR 91.819 and 91.821.  The proposed rule would (i) define acceptable noise thresholds for takeoff, landing, and en-route supersonic operation, and (ii) include a process for periodic review and update of the rule to reflect future advances in aircraft noise reduction technology.

 
Agency: Department of Transportation(DOT)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Long-Term Actions 
Major: No  Unfunded Mandates: No 
EO 14192 Designation: Deregulatory 
CFR Citation: 14 CFR 36   
Legal Authority: 42 U.S.C. 4321    49 U.S.C. 106(f)    49 U.S.C. 40113    49 U.S.C. 44701    49 U.S.C. 44702    49 U.S.C. 44704    49 U.S.C. 44715    Pub. L. 96-193, 94 Stat. 50, 57   
Legal Deadline:
Action Source Description Date
NPRM  Statutory  Not later than March 31, 2020, the Administrator shall issue an NPRM to revise part 36 of title 14, Code of Federal Regulations, to include supersonic aircraft in the applicability of such part. See l  03/31/2020 
Timetable:
Action Date FR Cite
NPRM  04/13/2020  85 FR 20431   
NPRM Comment Period End  07/13/2020 
Second NPRM  12/00/2026 
Second NPRM Comment Period End  02/00/2027 
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: www.regulations.gov   Public Comment URL: www.regulations.gov  
RIN Data Printed in the FR: No 
Agency Contact:
Sandy Liu
Office of Environment and Energy
Department of Transportation
Federal Aviation Administration
800 Independence Avenue SW,
Washington, DC 20591
Phone:202 267-4748
Email: sandy.liu@faa.gov