Effective January 1, 2020, the California Air Resources Board’s (CARB) Truck and Bus Regulation compliance verification will be a part of the California Department of Motor Vehicles (DMV) vehicle registration process. The Truck & Bus Regulation requires that most medium- and heavy-duty commercial diesel trucks and buses with older engines be replaced or repowered with 2010 or newer model year engines through a phase-in schedule.

Matthew Allen

Regulations

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Regulations Archive