Clean Truck Check Credentialed Tester

Clean Truck Check in Unionville, MO

1 credentialed tester in Unionville.

Testers in Unionville

Nearest in-person tester to Unionville

The closest CARB-credentialed Clean Truck Check tester is QSC in Des Moines, Iowa — about 85 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Putnam County

Clean Truck Check applies to heavy-duty vehicles that operate in California — including out-of-state trucks based here that run loads west.

Trucking establishments
5
Trucking employees
13

Source: FMCSA MCMIS carrier census, US Census County Business Patterns 2021.

Freight corridors near Unionville

Unionville sits on US-136, IA-5, MO-129, MO-139, MO-149 and MO-5. Trucks running these routes into California fall under CARB’s Clean Truck Check — Smart CTC lets them test remotely without leaving the road.

Source: OpenStreetMap (© OpenStreetMap contributors).