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Regulation 12 Rule 15: Refining Emissions Tracking - 2026 Amendment (Conceptual)
Learn about the Air District's rule development process for improving and streamlining refinery emissions tracking and fenceline air monitoring requirements.
Information on hearings, workshops, and other events is provided below, along with supporting documents and materials.
Adopted in 2016, Air District Regulation 12: Miscellaneous Standards of Performance, Rule 15: Refining Emissions Tracking (Rule 12-15) requires refineries to prepare an annual emissions inventory, make crude slate reports available to the Air District for review, conduct real-time fenceline air monitoring of certain air pollutants, and make the fenceline air monitoring data publicly available. In the time since Rule 12-15 was adopted, statewide regulatory requirements, the Air District’s experience administering fenceline air monitoring and emissions inventory programs, and air monitoring technology have evolved. With this in mind, the Air District is considering repealing and replacing Rule 12-15 in an effort to improve the effectiveness, clarity, and implementation of refinery fenceline air monitoring and emissions tracking programs.
Under the approach currently being considered for proposal to the Board, the Air District would propose to replace the fenceline air monitoring requirements in Rule 12-15 by repealing 12-15 and concurrently adopting a new, dedicated refinery fenceline air monitoring rule (proposed to be numbered as Rule 12-17). A new or revised rule to replace the emissions inventory requirements of Rule 12-15 would not be proposed at this time, as the Air District would rely on authority under more recent stringent statewide requirements for the development of emissions inventories including the California Air Resources Board’s (CARB) Regulation for the Reporting of Criteria Air Pollutants and Toxics Air Contaminants (CTR Regulation) and its Regulation for the Mandatory Reporting of Greenhouse Gas Emissions (MRR). The Air District would, however, propose to develop guidelines and other resources to support implementation of the CTR Regulation reporting process. Similarly, in lieu of proposing a new or revised rule to replace the crude slate reporting requirements of Rule 12-15, the Air District could rely on other information (such as data on combustion rates and improved emissions inventory data) to assess changes in refinery emissions.
Please see the sections below about hearings, workshops, and other stakeholder engagement events; links to important documents; and public comments submitted to the Air District during the rule development process.
Through April 3, 2026, the Air District is accepting written comments on the concept paper provided in the Documents section below. Comments may be submitted in writing by email (the preferred method) or via mail, no signature required, to the addresses below:
Via e-mail at:
ruledevelopment@baaqmd.gov
Via mail at:
Bay Area Air Quality Management District
Attn: Joe Lapka
375 Beale Street, Suite 600
San Francisco, CA 94105-2097
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Hearings, Workshops, and Other Events
Throughout the rule development process, we provide information on related workshops, hearings, and other events.
Documents
Supporting materials, such as staff reports, draft and proposed regulatory language, and other technical documents related to rule development, are posted throughout the development process.
Comments
The Air District provides opportunities for the public to submit comments throughout the development process, and posts comments received during the open public comment periods.
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Last Updated: 2/23/2026