We help heavy-duty vehicles meet California’s CARB Clean Truck Check (HD I/M) requirements with quick, mobile OBD inspections and clear guidance. Whether you run one truck or a large fleet, we make compliance simple and efficient.


Most diesel trucks that weight over 14,000 lb that operate in California must complete periodic Clean Truck Check OBD inspections. We serve owner-operators and fleets statewide and help you understand testing intervals, records, and submissions so you can stay on the road.
Tell us about your vehicle(s) and preferred location. We’ll confirm availability and get you compliant fast.