San Diego County Air Quality Management Plans

This page last reviewed November 7, 2018

This page contains information regarding State Implementation Plan (SIP) activity related to the San Diego County Air Pollution Control District (District) which is comprised of the county of San Diego. The information on this page provides links to CARB, District, and U.S. EPA documentation. (Unless otherwise noted, documents are in .pdf format.)

2017 San Diego Ozone State Implementation Plan (SIP)


2018 Updates: In response to court decisions, some elements included in the 8-Hour Ozone Attainment Plan for San Diego County required updates.  CARB staff prepared the 2018 Updates to the California State Implementation Plan (2018 SIP Update) to update SIP elements for nonattainment areas throughout the State as needed.  CARB adopted the 2018 SIP Update on October 25, 2018.

2018 Updates to the Califonia State Implementation Plan (Adopted October 25, 2018)


At a public meeting held on March 23, 2017, the California Air Resources Board adopted the 8-Hour Ozone Attainment Plan for San Diego County (Ozone Plan), as a revision to the California SIP. The District adopted the Ozone Plan at a public hearing on December 14, 2016.

CARB Documents

District Documents

2012 8-Hour National Ozone Implementation/Maintenance Plan and Redesignation Request

At a public meeting held on December 6 - 7, 2012, the California Air Resources Board approved the San Diego County Air Pollution Control District 2012 Maintenance Plan and Redesignation Request for the 1997 8-Hour National Ozone Standard for submittal to the U.S. EPA as a SIP revision. The information on this page provides links to CARB, District, and U.S. EPA documentation.

CARB Documents

District Documents

U.S. EPA Documents

  • Not currently applicable.

2007 8-hour Ozone Plan

At the public hearing held on May 24, 2007, the California Air Resources Board (CARB) approved the San Diego County Air Quality Management Plan for attaining the Federal 8-hour Ozone standard. The plan projects attainment for the standard by 2009. Below you will find links to the Air Quality Management Plan, letters submitting the plan to CARB and the U.S. Environmental Protection Agency, resolutions, staff report, and a public hearing notice.

CARB Documents

Public Notice

District Documents

Carbon Monoxide Plans

2004 Revisions to the Carbon Monoxide Maintenance Plan (July 2004)

1998 Revisions to the Carbon Monoxide Maintenance Plan (October 1998)

Final Carbon Monoxide Redesignation Request and Maintenance Plan for Ten Federal Planning Areas (April 1996)

California State Implementation Plan

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