Clean Truck Check Credentialed Tester

Clean Truck Check in Collins, MS

1 credentialed tester in Collins.

Testers in Collins

Nearest in-person tester to Collins

The closest CARB-credentialed Clean Truck Check tester is Clean Emissions Relief, LLC in Harvey, Louisiana — about 126 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Covington 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
24
Trucking employees
186

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

Freight corridors near Collins

Collins sits on US-49, US-84, MS-184, MS-28, MS-35 and MS-37. 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 Collins. Useful for routing a service stop around your CTC test.

+1 more within 25 miles.

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