NOTIFICATION

Addendum

The following communication, dated 27 November 2024, is being circulated at the request of the delegation of the United States of America.

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Title: Control of Non-Volatile Particulate Matter From Aircraft Engines: Emission Standards and Test Procedures

Description: Final rule; confirmation of effective date and response to public comments - This action confirms the effective date of the final rule published on 24 April 2024 (G/TBT/N/USA/2116), and responds to the comments received on that final rule. The FAA published a correction on 7 May 2024 (G/TBT/N/USA/2116/Corr.1), to the final rule that established a compliance date of 90 days after the effective date. The rule adopts standards for measuring non-volatile particulate matter (nvPM) exhaust emissions from aircraft engines. With this rulemaking, the FAA implemented the nvPM emissions standards adopted by the Environmental Protection Agency (EPA), allowing manufacturers to certificate engines to the new nvPM emissions standards in the United States, and fulfilling the statutory obligations of the FAA under the Clean Air Act.

89 Federal Register (FR) 92787, 25 November 2024; Title 14 Code of Federal Regulations (CFR) Part 34:

https://www.govinfo.gov/content/pkg/FR-2024-11-25/html/2024-27390.htm

https://www.govinfo.gov/content/pkg/FR-2024-11-25/pdf/2024-27390.pdf

This and previous actions notified under the symbol G/TBT/N/USA/2116 are identified by Docket Number FAA-2023-2434. The Docket Folder is available on Regulations.gov at https://www.regulations.gov/docket/FAA-2023-2434/document and provides access to primary and supporting documents as well as comments received. Documents are also accessible from Regulations.gov by searching the Docket Number.

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[1] This information can be provided by including a website address, a pdf attachment, or other information on where the text of the final/modified measure and/or interpretive guidance can be obtained.