OBD Testing $75 We Come to You

What Is the Clean Truck Check?

Understanding CARB’s Clean Truck Check (HD I/M)

• California Air Resources Board (CARB) requires most diesel and alternative-fuel heavy-duty trucks (>14,000 lbs) to undergo regular emissions checks.

• Tests include OBD plug-in checks (for newer trucks) and SAE J1667 smoke opacity tests (for older diesel engines).

• Reports are submitted to CARB’s official CTC-VIS portal for compliance.

Stay compliant with California’s Clean Truck Check (HD I/M) program. On-site OBD $75 and J1667 smoke opacity tests $250 for fleets, motorhomes, and heavy-duty trucks.

Why Choose NorCal CARB Mobile

Mobile Testing That Saves You Time & Money

• ✔ On-site testing at yards, jobsites, and truck stops

• ✔ CARB-certified equipment & technicians

• ✔ Nights & weekends available

• ✔ Results uploaded directly to CARB (CTC-VIS)

• ✔ Veteran-managed, Northern California based