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On April 24, 2023, the California Air Resources Board (CARB) approved the Advanced Clean Fleets Regulation. This regulation transitions High Priority Fleets, those with 50 or more trucks or companies with $50 million in revenue with one truck, to zero-emission trucks by 2045. This is the end user regulation to CARB’s zero-emission truck strategy, the first of which, the Advanced Clean Trucks Regulation, was directed at truck manufacturers and was issued a waiver by the United States Environmental Protection Agency in March 2023. An update on this can be found here (insert link to last month’s update).

The Advanced Clean Fleets Regulation requires High Priority Fleets to begin to comply with one of two compliance options; 1. Model Year Schedule and 2. Zero Emission Vehicle Milestones. The Model Year Schedule requires replacement of vehicles when they meet the end of their regulatorily-defined “minimum useful life” with a zero-emission vehicle starting January 1, 2024. The Zero Emission Vehicle Milestones Option requires defined percentages of a fleet’s vehicles to be zero emission at different year milestones starting January 1, 2025. The actual percentage of vehicles a fleet needs to be zero emission is determined by the types of vehicles the fleet has and the milestone year.

Now that CARB has approved this regulation, CARB staff is going to begin development of a regulation for fleets with less than 50 trucks.

If you have any questions about what this regulation may mean for your truck fleet please feel free to reach out to Associates Environmental’s Drew Delaney, ddelaney@associatesenvironmental.com (949) 322-3739.