Clean Truck Check Information Enforcement of Clean Truck Check HD I/M RegulationAboutNewsResources Fact Sheets Subscribe Contact HD Vehicle Enforcement Email HDVehicleEnforcement@arb.ca.gov Phone (916) 229-0492 Clean Truck Check HD I/M Vehicle Owner Information:Vehicle Owner InformationFreight Contractor, Broker, and Applicable Freight Facility InformationFreight Contractor, Broker, and Applicable Freight Facility InformationPeriodic Smoke Inspection Program (Testing Requirement Ended for 2024; Enforcement for Prior Compliance Continues):PSIP Booklet September 2020 PSIP Booklet November 2020 (Spanish)
