Clean Truck Check Credentialed Tester

Clean Truck Check in Campbellsville, KY

1 credentialed tester in Campbellsville.

Testers in Campbellsville

Nearest in-person tester to Campbellsville

The closest CARB-credentialed Clean Truck Check tester is HIGH CALIBER in Bowling Green, Kentucky — about 65 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Taylor 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
8
Trucking employees
58

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

Freight corridors near Campbellsville

Campbellsville sits on US-68, KY-1742, KY-210, KY-412, KY-55 and KY-551. 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 Campbellsville. Useful for routing a service stop around your CTC test.

Source: © OpenStreetMap contributors. Last updated 2026-05-26.