Clean Truck Check.
Mobile testing
in California.
Onsite Clean Truck Check testing (OBD, smoke opacity, HDIM, and CARB compliance) for California fleets — we bring the equipment to your yard, so your trucks never leave the property.
Serving fleets statewide across California · Established 2019
Verification
Full compliance,
one visit.
Every test your fleet needs to stay road-legal in California, run by a credentialed tester at your location.
OBD Testing
Onboard diagnostics checks confirming your vehicle's emissions systems are reporting clean.
Smoke Opacity
Diesel opacity testing to verify exhaust stays within California's legal limits.
HDIM Testing
Heavy-Duty Inspection & Maintenance testing for diesel trucks operating in CA.
Regulatory Compliance
Full documentation and filing so your fleet stays current with CARB requirements.
CARB Certified
Credentialed under California's Clean Truck Check program as an authorized tester.
Mobile Service
We bring the equipment to your yard — no downtime, no driving to a test center.
Three steps.
Zero downtime.
Schedule a time
Call, text, or email with your fleet size and location. We'll find a window that works around your operations.
We come to you
Our credentialed tester arrives onsite with mobile equipment and runs every required test on your lot.
Pass & get filed
Results are documented and filed for compliance — you get a record, and one less thing to track.
Let's get your
fleet road ready.
Reach out with your fleet size and yard location — we'll schedule your onsite test and keep you ahead of your compliance deadlines.
- Los Angeles
- Orange County
- Inland Empire
- Central Valley
- Statewide CA