How about if no trucks operated in California? How long would it be before the people there started eating each other?
Your citation will be in the mail.
Under the proposed rule for big trucks, a vehicle weighing more than 7 tons, or 14,000 pounds, would need an on-board diagnostic computer and software to detect breakdowns in virtually every part and system to control emissions.What's the big deal? Virtually every car built with a "check engine" light already has that built in.