Clean Truck Check Credentialed Tester

Clean Truck Check in Colfax, LA

1 credentialed tester in Colfax.

Testers in Colfax

Nearest in-person tester to Colfax

The closest CARB-credentialed Clean Truck Check tester is Kenan Advantage Group in Saint Gabriel, Louisiana — about 131 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Grant 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
7
Trucking employees
8

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

Freight corridors near Colfax

Colfax sits on I-49, US-167, US-71, LA-1, LA-158 and LA-3225. 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 Colfax. Useful for routing a service stop around your CTC test.

+1 more within 25 miles.

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