Important Dates

January 1, 2023: CARB will require all heavy duty on road vehicles to have a 2010 or newer engine.

Date: January 01, 2023

Starting January 1, 2020, all remaining vehicles need to be replaced so that they all have 2010 model year engines or equivalent emissions by January 1, 2023

California Air Resources Board Truck and Bus Compliance Overview can be viewed here fsregsum.pdf (

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