Clean Truck Check Credentialed Tester

Clean Truck Check in Lancaster, KY

1 credentialed tester in Lancaster.

Testers in Lancaster

Nearest in-person tester to Lancaster

The closest CARB-credentialed Clean Truck Check tester is HIGH CALIBER in Bowling Green, Kentucky — about 111 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Garrard 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
10

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

Freight corridors near Lancaster

Lancaster sits on I-75, US-127, US-127-Bypass, US-150, US-150-Bypass and US-27. 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 Lancaster. Useful for routing a service stop around your CTC test.

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