For complaints regarding mobile sources and vehicles such as smoking vehicles and excessive
diesel idling, check out the
District's Complaint webpage. Aternatively, you can contact the California Air Resources Board (CARB) directly regarding via the
CARB Air Pollution Complaint webpage.
CARB enforces air pollution regulations affecting all types of heavy-duty diesel vehicles operating in the State.
For more information on CARB Diesel Truck Rules, Compliance Options, and Reporting Requirements, call 1-866-6DIESEL (1-866-634-3735).