The California Office of Administrative Law recently approved revisions to a state regulation that limits diesel truck idling to five minutes. The revisions, effective Jan. 1, 2008, will eliminate the state’s current exception to the five-minute limit for sleeping or resting in a sleeper booth.
Once the revisions take effect, alternatives to main engine idling will need to be used to supply cab heating, air conditioning and power beyond five minutes. New trucks sold in California also will be required to have nonprogrammable five-minute shutdown devices unless they can meet stringent California-only emissions requirements.
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