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CARB’s Advanced Clean Fleets Regulation Will Transform California’s Fleets

August 9, 2022

There is a regulatory hurricane on the horizon in California. The California Air Resources Board (CARB) is just a few short months away from finalizing what will likely be the most consequential environmental regulation in the state’s history. In development since February of 2020, the Advanced Clean Fleets (ACF) regulation is set to transform California’s medium- and heavy-duty diesel fleets to zero-emissions vehicles in less than 20 years. A daunting task, for sure, and one that will require motor carriers to take proactive steps to stay in compliance.

Fleet operators who haven’t been paying attention to this draft regulation should start, because it could change the way they do business. How ACF will ultimately affect a fleet depends on how that fleet operates. The current draft regulatory language divides motor carriers into three categories: High Priority and Federal fleets, Drayage fleets, and State and Local Government fleets. Some motor carriers may be subject to multiple provisions depending on the makeup of their fleets.

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