Clean Truck Check Credentialed Tester

Clean Truck Check in Buffalo, TX

1 credentialed tester in Buffalo.

Testers in Buffalo

Nearest in-person tester to Buffalo

The closest CARB-credentialed Clean Truck Check tester is Baljit Singh in Hutchins, Texas — about 90 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Leon 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
19
Trucking employees
98

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

Freight corridors near Buffalo

Buffalo sits on I-45, US-79, FM-80, TX-164, TX-7 and TX-75. 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 Buffalo. Useful for routing a service stop around your CTC test.

+1 more within 25 miles.

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