Serving Dublin, CA, JTD Clean Truck Check offers certified emissions testing and CARB compliance solutions for commercial vehicles. We provide Clean Truck Check (CTC), OBD testing, OVI testing, and smoke opacity testing for diesel trucks, big rigs, motorhomes, and mobile homes. With our convenient mobile service, inspections are performed at your location to reduce downtime and keep your operations moving. Our experienced technicians handle everything from emissions testing to CTC/VIS compliance verification while ensuring adherence to California Air Resources Board standards. Contact us: (925) 216-5834