Final California deadline for upgrading heavy-duty diesels to MY2010 or newer engines
Green Car Congress
JANUARY 3, 2023
Under the regulation, 1 January 2023 marked the final deadline to replace or repower older diesel trucks and buses with heavy-duty 2010 or newer model year engines. The regulation does not apply to: Vehicles fueled exclusively with gasoline or alternative fuels. Privately and federally owned trucks and buses that operate in California.
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