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Description of content: Final
rule; request for comments by 24 June 2024 - This action adopts standards for
measuring non-volatile particulate matter (nvPM) exhaust emissions from
aircraft engines. With this rulemaking, the FAA implements 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 (CAA).
The emission standards adopted by the EPA in 40 CFR part 1031 represent the results of widely
coordinated international efforts and public notice and comment rulemaking.
The FAA, EPA, industry representatives, and foreign certification authorities
all participated in a multi-year process that resulted in the nvPM standards
adopted by the International Civil Aviation Organization (ICAO), which the
EPA thereafter prescribed in 40 CFR part 1031. Because the FAA has no
authority to change any of the standards adopted by the EPA, a solicitation
of comments will not result in any substantive changes to the standards and
would unnecessarily delay their implementation.
Accordingly, the FAA finds that notice and comment on the standards
and procedures adopted in this rulemaking is unnecessary because the FAA does
not have authority to make changes to the standards or procedures adopted by
the EPA and the EPA issued its proposed rule for notice and sought
public comment on these standards and test procedures prior to promulgating
them on 23 November 2022; G/TBT/N/USA/1831 and Add.1 - Control of Air Pollution From
Aircraft Engines: Emission Standards and Test Procedures, EPA-HQ-OAR-2019-0660.
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