We’re pleased to share an important development regarding California’s Advanced Clean Fleets (ACF) Regulation and its potential impact on private construction fleets working on public projects.
After significant industry advocacy, CARB has clarified that private fleets will not be subject to the ACF public fleet requirements simply because they are performing work for a state or local government agency.
CARB’s latest interpretation indicates that the requirements apply to private fleets only when they are specifically “dispatched” by a public agency for a specific service rather than simply being contracted to perform a construction project.
This is a major win for California’s construction industry and addresses a significant concern that private contractors could have been pulled into public fleet requirements simply by working on publicly funded projects.
What this means: Construction contractors operating private fleets should not be subject to the public fleet turnover requirements solely because they have a contract with a state or local government agency.
What’s next: CARB plans to issue additional guidance and begin a new rulemaking process to address issues with the existing regulation. Industry will need to remain engaged to ensure the new guidance and future regulatory changes do not recreate the same challenges.
We appreciate the continued engagement from our industry partners and advocates who pushed for clarity and workable regulations for California’s construction industry. For any question or concerns regarding ACF please contact Tresten Keys at keyst@agc-ca.org.
Published: August 24, 2026. Content is current as of this date and may evolve as new information becomes available. For advocacy questions, contact advocacy@agc-ca.com. For media inquiries, contact kentt@agc-ca.org.



























