The California Air Resources Board has released an article on Clean Truck Check Regulation Telematics.
Clean Truck Check helps ensure that vehicles’ emissions control systems are properly functioning when operating in California to attain and maintain health-based air quality standards. The program applies to nearly all non-gasoline powered heavy-duty vehicles with a gross vehicle weight rating over 14,000 lbs. that operate on California public roads and highways, including government-owned vehicles.
Read the article here.