CARB adopts “smog-check” regulation for heavy-duty trucks and buses
Green Car Congress
DECEMBER 10, 2021
The twice-a-year inspections will ensure that the emissions control systems maintain the same efficiency as the vehicle ages. These benefits are 18 times the estimated $4-billion cost of the program, CARB said. Unlike light-duty smog checks, however, there is no requirement to go to a ‘brick and mortar’ heavy-duty smog check station.
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