Clean Truck Check Credentialed Tester

Clean Truck Check in West Union, WV

1 credentialed tester in West Union.

Testers in West Union

Nearest in-person tester to West Union

The closest CARB-credentialed Clean Truck Check tester is Otto Ammer in Mercer, Pennsylvania — about 133 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Freight corridors near West Union

West Union sits on US-50, CR-50/30, CR-54, WV-16 and WV-18. 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).

Nearby truck stops

OpenStreetMap-tagged truck stops, services areas, and HGV-marked fuel stations within 25 miles of West Union. Useful for routing a service stop around your CTC test.

Source: © OpenStreetMap contributors. Last updated 2026-05-27.