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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.

View editions of the Air District's Air Currents newsletter, which covers Air District activities as well as other air quality issues of interest to industry, government agencies, and the general public.

The Air District has launched a new online civic engagement tool, Open Air Forum, which offers the public a new opportunity to interact with the Air District and provide feedback on specific Air District topics.

The Air District and Alameda County District Attorney Ursula Jones Dickson filed a joint civil lawsuit against Radius Recycling, formerly Schnitzer Steel Industries, for air quality violations related to the fire at the company’s facility in West Oakland on August 9-10, 2023. In addition, previous enforcement actions by the Air District and the district attorney required Radius Recycling to install new equipment that has eliminated hundreds of tons of air pollution and reduced cancer risk by 84 percent since 2022; today the Air District finalized the operating permit for this important equipment. 

The Air District's Board of Directors adopted a bold air quality and climate plan, the 2017 Clean Air Plan, entitled Spare the Air - Cool the Climate (YouTube streaming video), which addresses air quality improvement and greenhouse gas reduction for the nine-county Bay Area region.

The Air District announced today that Air Liquide Large Industries, US LP, has agreed to pay $159,000 to settle violations that occurred at its hydrogen plant at the San Francisco Oil Refinery in Rodeo.

The Air District has lifted the Spare the Air Alert that was in place through Tuesday and is instead issuing an air quality advisory through Tuesday, October 13, due to possible localized smoke impacts near the Glass Fire.

The Hearing Board is an independent quasi-judicial body created by California State law with the sole authority to provide temporary relief from Bay Area Air District rules, regulations, and permit conditions, under certain circumstances.

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