2060-AU69 202110 The Regulatory Plan and the Unified Agenda of Federal Regulatory and Deregulatory Actions 2060 Office of Air and Radiation OAR 2000 Environmental Protection Agency EPA Control of Air Pollution From Aircraft Engines: Emission Standards and Test Procedures

This proposed rulemaking follows the International Civil Aviation Organization (ICAO) agreement on the international particulate matter (PM) emission standards for commercial aircraft engines in February 2019. Domestically the EPA anticipates proposing PM standards that would be at least as stringent as ICAO's standards, including replacing the existing smoke number visibility standard with a PM-based standard for certain classes of engines. This proposal would also include new measurement procedures for PM emissions and visibility control that align with those of ICAO. In addition, we are proposing to migrate the aircraft engine regulations from the existing 40 CFR part 87 to a new 40 CFR part 1031, and the new aircraft engine PM standards and requirements described earlier would be specified in this new part 1031.

]]> Other Significant Previously Published in The Unified Agenda Proposed Rule Stage No No 40 CFR 87 42 U.S.C. 7545 No NPRM 12/00/2021 Final Rule 11/00/2022 . No No Undetermined No No No No Bryan Manning 2060 Office of Air and Radiation OAR 734 214-4832 734 214-4816 manning.bryan@epa.gov NVFEL, Ann Arbor MI 48105