2060-AV52 202304 Unified Agenda of Federal Regulatory and Deregulatory Actions 2060 Office of Air and Radiation OAR 2000 Environmental Protection Agency EPA Reconsideration of the National Ambient Air Quality Standards for Particulate Matter Other Significant Previously Published in The Unified Agenda Final Rule Stage No No 40 CFR 50 42 U.S.C. 7401 et seq, Clean Air Act No NPRM 01/27/2023 88 FR 5558 Final Rule 10/00/2023 EPA-HQ-OAR-2015-0072. No None No No No No Karen Wesson 2060 Office of Air and Radiation OAR 919 541-3515 wesson.karen@epa.gov 109 T.W. Alexander Drive, Mail Code C504-06, Research Triangle Park NC 27711 Nicole Hagan 2060 Office of Air and Radiation OAR 919 541-3153 hagan.nicole@epa.gov 109 T.W. Alexander Drive, Mail Code C504-06, Research Triangle Park NC 27709