2060-AI43 200610 The Regulatory Plan and the Unified Agenda of Federal Regulatory and Deregulatory Actions 2060 Air and Radiation AR 2000 Environmental Protection Agency EPA Review of the National Ambient Air Quality Standards for Carbon Monoxide Other Significant Previously Published in The Unified Agenda Proposed Rule Stage No No 40 CFR 50 42 USC 7409 Statutory Final 05/31/2001 Clean Air Act requires reviews every 5 years. Yes NPRM 01/00/2009 Final Action 11/00/2009 SAN No. 4266 No No Undetermined No No NA Not Collected Dave McKee 2060 Office of Air and Radiation OAR 919 541-5288 mckee.dave@epa.gov C504-06, RTP NC 27711 Harvey Richmond 2060 Office of Air and Radiation OAR 919 541-5271 Richmond.Harvey@epa.gov C504-06, Washington DC 20460