Advanced Clean Fleets - Enforcement Notice

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December 28, 2023

Advanced Clean Fleets Regulation - Enforcement Notice

Updates Regarding Enforcement of the California Air Resources Board's Advanced Clean Fleets Regulation


The California Air Resources Board (CARB) does not plan to take enforcement action on the drayage or high priority fleet provisions of the Advanced Clean Fleets (ACF) regulation until the U.S. EPA grants a preemption waiver applicable to those regulatory provisions or determines a waiver is not necessary. This enforcement discretion does not apply to State and Local Government Fleets.

CARB encourages fleets to voluntarily report and comply while the waiver request is pending and reserves all of its rights to enforce the Advanced Clean Fleets regulation in full for any period for which a waiver is granted or for which a waiver is determined to be unnecessary, including (but not limited to) the right to remove non-compliant vehicles added to fleets while the waiver request is pending. CARB will also accept requests for the extensions and exemptions available under the ACF regulation during this period.

The enforcement notice contains Information on how this directly affects drayage, high priority, and state and local government fleets. Additional information may be found on the ACF Regulation and Advisories page.

ACF Enforcement Notice


Background

The ACF regulation was adopted by CARB in April 2023 and was effective, as a matter of state law, on October 1, 2023 (California Code of Regulations, Title 13, Sections 2013, 2013.1, 2013.2, 2013.3, 2013.4, 2014,2014.1, 2014.2, 2014.3, 2015, 2015.1, 2015.2, 2015.3, 2015.4, 2015.5, 2015.6, and 2016). The ACF regulation complements CARB’s recently adopted Advanced Clean Trucks regulation and will assist California in attaining the State’s air quality and climate mitigation targets. The ACF regulation will help advance the introduction of vehicles that emit no criteria or GHG emissions, i.e., zero emission vehicles (ZEV) into California’s truck and bus fleets requiring fleets that are well suited for electrification to transition to zero emission technologies with requirements to both phase-in the use of ZEVs for targeted fleets and requirements that manufacturers only sell ZEV trucks in California starting in the 2036 model year. The ACF regulation is expected to introduce 1,690,000 ZEVs into the California fleet by 2050. Additionally, the ACF regulation is expected to result in $26.5 billion in statewide health benefits from improved air quality and save fleet owners an estimated $48.0 billion through 2050.


Contact

For further information regarding this Notice, please contact Skott Wall and Adam Gomez.