Air Quality Division: Plans: U.S. EPA Actions

The following State Implementation Plans (SIP)s have been acted on by the U.S. EPA. Once the U.S. EPA has taken action on a SIP, a Federal Register (FR) notice is published. For U.S. EPA actions on older SIPs please visit U.S. EPA Air Actions, Arizona . Copies of older SIP documents are available at the ADEQ Records Center, (602) 771-4380.

Carbon Monoxide:

  • Phoenix (Maricopa County) - Approved 03/09/2005 (70 FR 11553) Effective 04/08/2005; Corrections Approved 09/06/2005 (70 FR 52926) Effective 11/07/2005
  • Tucson Air Planning Area (Pima County) - Approved 08/21/2000 (65 FR 50652) Effective 09/20/2000
  • Tucson Air Planning Area (Pima County) - Approved 12/21/2009 (74 FR 67819) Effective 01/20/2010

Ozone:

  • Phoenix (1-Hour Ozone) - Approved 06/14/2005 (70 FR 34362) Effective 6/14/05

PM10:

  • Bullhead City Limited Maintenance Plan - Approved 06/26/2002 (67 FR 43020) Effective 08/26/2002
  • Miami - Proposed Partial SIP Approval (59 FR 36116, Effective July 15, 1994), no final action on proposal; Clean Data finding and boundary correction approved with direct final action (72 FR 3061); 03/28/2007, Effective 05/29/2007
  • Payson Limited Maintenance Plan - Approved 06/26/2002 (67 FR 43013) Effective 08/26/2002
  • Phoenix - Serious Area Plan for Attainment of the PM10 Standard, Approved 07/25/2002 (67 FR 48717) Effective 08/25/2002
  • Phoenix - Serious Area Plan for Attainment of the 24-Hour PM10 Standard; Clean Air Act Section 189(d); proposed partial approval and disapproval (75 FR 54806), 09/09/2010

Sulfur Dioxide:

  • Ajo - Approved 11/03/2003 (68 FR 62239) Effective 01/02/2004
  • Douglas - Approved 02/28/2006 (71 FR 9941) Effective 05/01/2006
  • Miami - Approved 01/24/2007 (72 FR 3061) Effective 03/26/2007 with boundary correction
  • Morenci - Approved (69 FR 22447) Effective 06/25/2004
  • San Manuel - Approved 01/18/2008 (73 FR 3396) Effective 03/18/2008

Other SIPs

  • Collectible Vehicles & Tucson Motorcycles Exemption from Inspections and Maintenance (I/M) Program Requirements - Approved 3/30/07 (72 FR 15046) Effective 04/30/2007
  • Phoenix Motorcycle Exemption from Inspections and Maintenance (I/M) Program Requirements – Approved May 22, 2013 (78 FR 30209 Effective 06/21/2013
  • Regional Transport Under Clean Air Act Section 110(a)(2)(D)(i) for 8-Hour Ozone and PM2.5 NAAQS - Approved with direct final action (72 FR 41629) Effective 10/01/2007
  • Completeness Finding Under Clean Air Act Section 110(a)(2) for 1997 PM2.5 NAAQS (Infrastructure) - Approved 10/22/2008 (73 FR 62902) Effective 11/28/2008