Document Archives State Implementation Plans (SIP)

The SIP Planning Process and Colorado SIP Summaries

The Regional Air Quality Council has created a document, The SIP Planning Process and Colorado SIP Summaries, to provide an overview of the Clean Air Act's (CAA) Requirements for state implementation plan development and approval for the Denver Metro Area (DMA), as well as a historical summary of the Colorado SIPs by pollutant.  To view full versions of the SIPs, select the pollutant from the drop down menu above.

Contact Misty Howell if you are unable to find a SIP.

Ozone Action Plan and State Implementation Plan 2008

Posted Under: Ozone (8-Hour Standard)

• Ozone Action Plan and State Implementation Plan 2008 - Approved by the AQCC on December 12, 2008
  • Attachment A:  Regulation No.3, Regulation No. 7, and Revisions to Ambient Standards Regulation

Interstate Transport SIP - Regulation

Posted Under: Ozone (8-Hour Standard)

• Interstate Transport SIP,  Approved by the AQCC on December 12, 2008

PM-10 Maintenance Plan (Revised) - 2005

Posted Under: Particulate Matter

• EPA published the Final Rule for the approval of the PM-10 Maintenance Plan for the Metropolitan Denver Area in the Federal Register Volume 72 Number 214, November 6, 2007
• PM-10 Maintenance Plan, Approved by the AQCC on December 15, 2005

Carbon Monoxide Maintenance Plan (Revised) - 2005

Posted Under: Carbon Monoxide

• EPA published the Final Rule for the approval of the Carbon Monoxide Maintenance Plan and Redesignation Request for the Metropolitan Denver area  in the Federal Register Volume 72, Number 159, August 17, 2007
• Carbon Monoxide (CO) Maintenance Plan, Approved by the AQCC on December 15, 2005

PM-10 Maintenance Plan

Posted Under: Particulate Matter

• EPA published the Final Rule for the approval of the PM-10 Redesignation Request and Maintenance Plan for the Metropolitan Denver Area in the Federal Register 67 Number 179, September 16, 2002
• EPA published the proposed approval of the PM-10 Maintenance Plan and Redesignation Request for the Metropolitan Denver Area in the Federal Register Vol. 67 , Number 100, May 23, 2002
• PM-10 Maintenance Plan and Redesignation Request  &  PM-10 Maintenance Plan Appendices, Approved by the AQCC on April 19, 2001
• PM-10 Redesignation Request and Maintenance Plan Fact Sheet, December 2000

Carbon Monoxide Maintenance Plan (Revised) - 2003

Posted Under: Carbon Monoxide

• EPA published the Final Rule and the Proposed Rule for the approval of the Carbon Monoxide Revised Maintenance Plan and Redesignation  Request (using Mobile 6.2) for the Metropolitan Denver area  in the Federal Register 69 FR 55752  and 69 FR 55790, respectively, September 16, 2004. The Direct Final Rule will become Federally-effective on November 15, 2004.
• Carbon Monoxide Maintenance Plan Approved by the AQCC on June 19, 2003 
  

Early Action Compact: Ozone Action Plan

Posted Under: Ozone (8-Hour Standard)

• Early Action Compact: Ozone Action Plan Proposed Revisions to State Implementation Plan -  Approved by AQCC - December 17, 2006
• EPA published the proposed approval of the Early Action Compact Ozone Action Plan in the Federal Register -  Vol. 70 , Number 94, May 17, 2005
• Early Action Compact Ozone Action Plan: Proposed Revision to the State Implementation Plan, Approved by AQCC on March 12, 2004, Governor submitted to EPA in July 2004

Carbon Monoxide Maintenance Plan

Posted Under: Carbon Monoxide

• EPA published the Final Rule for the approval of the Carbon Monoxide Maintenance Plan and Redesignation Request for the Metropolitan Denver area  in the Federal Register Volume 66, Number 241, December 14, 2001
• Carbon Monoxide Redesignation Request and Maintenance Plan  Approved by the Air Quality Council - January 10, 2000

Ozone Redesignation Request and Maintenance Plan

Posted Under: Ozone (1-Hour Standard)

• Maintenance Plan for the Metropolitan Denver Area in the Federal Register 66 FR 48708, September 11, 2001
• Ozone Redesignation Request and Maintenance Plan for the Denver Metropolitan Area - January 11, 2001
  
  
• Ozone Redesignation Request and Maintenance Plan Fact Sheet, October 2000