Clean Truck Check Credentialed Tester

Clean Truck Check in Selma, AL

1 credentialed tester in Selma.

Testers in Selma

Nearest in-person tester to Selma

The closest CARB-credentialed Clean Truck Check tester is TRUCKWORX in Dothan, Alabama — about 127 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Dallas 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
16
Trucking employees
76

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

Freight corridors near Selma

Selma sits on US-80, US-80-Business, US-80-Truck, AL-14, AL-14-Truck and AL-219. 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 Selma. Useful for routing a service stop around your CTC test.

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