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 Leaving ADEQ Web site. 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
  • 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 10/22/2008O (73 FR 62902) Effective 11/28/2008