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View the Engineering Policy and Procedure Manual, a resource for permit applicants and Air District staff on the requirements of the permit evaluation process.

The Air District has issued 3 Notices of Violation to Valero for violations of air quality regulations and/or permit conditions for the May 5 fire. This is an ongoing investigation, and more violations may be issued.

The Air District has issued Crown Hill Materials, a concrete facility in Vallejo, a Notice of Violation for operating a concrete batch plant without the required air quality permit. The Air District has also issued a cease-and-desist letter directing the company to stop operating the unpermitted plant.

View and download permit application, renewal, and related forms.

The Air District has issued 18 Notices of Violation to MRC for violations of air quality regulations and/or permit conditions for the February 1 fire. This is an ongoing investigation, and more violations may be issued.

View notices of proposed Bay Area permit projects and public comment periods for these projects.

View archived notices of proposed Bay Area permit projects and public comment periods for these projects.

View the BACT / TBACT Workbook, a resource for guiding permit applicants and Air District staff through the New Source Review permitting process.

Learn about Synthetic Minor Operating Permit eligibility and requirements, and view a list of Bay Area Synthetic Minor Facilities.

Find out how the Air District uses modeling to understand pollutant behavior, estimate exposure levels, help with regional planning, support permit applications, and more.

Jan 12, 2010 ... NEWS FOR IMMEDIATE RELEASE CONTACT: Ana Sandoval January 12, 2010 office: 415.749.4900 cell: 415.794.9804 Air District to resubmit Lehigh permit renewal SAN ...

Air District invites the public to participate in air quality permit process

Dec 19, 2012 ... NEWS FOR IMMEDIATE RELEASE CONTACT: Ralph Borrmann December 19, 2012 415.749.4900 Air District Board approves amendments to permit regulations ...

Dec 18, 2025 ... Real-Time Air Quality Data Sources in the Bay Area Introduction The Bay Area is served by multiple complementary air monitoring networks, including a regulatory network maintained by the Bay ...

Jan 13, 2010 ... NEWS For Immediate Release Contact: Ana Sandoval January 13, 2010 415.749.4900 (office) 415.794.9804 (cell) Air District tightens air ...

Oct 13, 2010 ... NEWS FOR IMMEDIATE RELEASE CONTACT: Kristine Roselius February 4, 2010 415.749.4900 Air District approves landmark permit for Hayward power plant First ...

Sep 17, 2009 ... NEWS FOR IMMEDIATE RELEASE CONTACT: Aaron Richardson September 16, 2009 415.749.4900 MEDIA ADVISORY Air District seeks public comment on Lehigh permit renewal SAN FRANCISCO - ...

Jan 24, 2011 ... NEWS FOR IMMEDIATE RELEASE CONTACT: Aaron Richardson January 20, 2011 415.760.0242 (cell) Air District seeks public input on Lehigh permit renewal SAN FRANCISCO - The Bay Area ...

Jan 24, 2011 ... NEWS FOR IMMEDIATE RELEASE CONTACT: Aaron Richardson January 20, 2011 415.760.0242 (cell) Air District seeks public input on Lehigh permit renewal SAN FRANCISCO - The Bay Area ...

Jul 27, 2016 ... NEWS FOR IMMEDIATE RELEASE CONTACT: Lisa Fasano July 24, 2016 415.749.4900 ...