CARB adopts “smog-check” regulation for heavy-duty trucks and buses
Green Car Congress
DECEMBER 10, 2021
The California Air Resources Board approved a smog-check regulation for medium- and heavy-duty trucks and buses. The action taken by CARB will cover roughly 1 million heavy-duty trucks and buses operating in California. These benefits are 18 times the estimated $4-billion cost of the program, CARB said.
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