Background
At its September 25, 2025, public hearing, the California Air Resources Board (CARB or Board) adopted the amendments to sections 2013, 2013.1, 2013.2, 2013.3, 2013.4, 95486.3, and the adoption of new sections 2013.5, 2013.6, 2013.7, Title 13 and 17, California Code of Regulations. Additionally, the Board adopted the repeal of sections 2014 and 2015, Chapter 1, Article 3.2, Title 13, California Code of Regulations. The Board adopted amendments to the State and local government requirements of section 2013 that provide more flexibility beyond the statutory requirements of Assembly Bill (AB) 1594 and the original staff proposal while maintaining progress towards reducing emissions. The actions taken repeal the Drayage, High Priority, and Federal Fleet requirements from the Advanced Clean Fleets (ACF) Regulation, providing greater certainty to those entities that they do not need to demonstrate compliance. The Low Carbon Fuel Standard (LCFS) amendments to Title 17 provide stronger crediting support for hydrogen stations and more adequately support development of stations that can accommodate the refueling demand of larger medium-duty hydrogen fuel cell electric vehicles.
These proposed modifications only apply to the portion of the ACF regulation that is applicable to State and local government fleets. These proposed modifications do not modify the LCFS regulation amendments nor the repeal of the Drayage and High Priority Fleet requirements approved by the Board in September.
Inquiries concerning the substance of the Proposed Regulation may be directed to Paul Arneja, Air Resources Supervisor, Mobile Source Control Division, at (279) 208-7342 or (designated back up contact) Molly Munz, Air Pollution Specialist, Mobile Source Control Division, at (279) 208-7179.
The resolution and all other regulatory documents for this rulemaking are available online at the following Rulemaking webpage.
Written Comment Period & Comment Submittal
Written comments will only be accepted on the modifications identified in the 15-Day Notice. Comments may be submitted by postal mail or by electronic submittal. The public comment period for this regulatory action will begin on, April 2, 2026. Written comments must be received no later than April 17, 2026, and addressed to the following:
Clerk of the Board, California Air Resources Board
1001 I Street, Sacramento, California 95814
Please note that under the California Public Records Act (Government Code section 7920.000 et seq.), your written and oral comments, attachments, and associated contact information (e.g., your address, phone, email, etc.) become part of the public record and can be released to the public upon request.
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