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California Mobile CARB Clean Truck Check Inspections
Fast and reliable mobile OBD and Opacity inspections for semi trucks, motorhomes, buses, diesel fleets, box trucks, and commercial vehicles across California. Book inspections online, track compliance status, and manage fleet inspections from your dashboard.
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OBD Inspection

CARB Clean Truck Check OBD testing for 2013+ diesel vehicles starting at $99.

Opacity Testing

Heavy-duty diesel smoke opacity testing for older commercial vehicles and fleets.

Mobile Inspection

Mobile inspection service with automatic mileage-based pricing across California.