Clean Truck Check Credentialed Tester

Clean Truck Check in Lockhart, TX

1 credentialed tester in Lockhart.

Testers in Lockhart

Nearest in-person tester to Lockhart

The closest CARB-credentialed Clean Truck Check tester is CENTRAL COAST TRANSPORT, INC in Converse, Texas — about 47 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Caldwell 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
10
Trucking employees
43

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

Freight corridors near Lockhart

Lockhart sits on I-35, US-183, US-90, FM-110, FM-1626 and FM-20. 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 Lockhart. Useful for routing a service stop around your CTC test.

+4 more within 25 miles.

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