Non-volatile particulate matter from aircraft engines; Quality (ICS code(s): 03.120); Environmental protection (ICS code(s): 13.020); Air quality (ICS code(s): 13.040); Test conditions and procedures in general (ICS code(s): 19.020); Aircraft and space vehicles in general (ICS code(s): 49.020)

Control of Non-Volatile Particulate Matter From Aircraft Engines: Emission Standards and Test Procedures; (13 page(s), in English)

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.