Clean Truck Check Credentialed Tester

Clean Truck Check in Rock Springs, WY

1 credentialed tester in Rock Springs.

Testers in Rock Springs

Nearest in-person tester to Rock Springs

The closest CARB-credentialed Clean Truck Check tester is Micheale Roderiques in Ogden, Utah — about 144 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Sweetwater 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
62
Trucking employees
540

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

Freight corridors near Rock Springs

Rock Springs sits on I-80, I-80-Bus, I-80-Business, US-191, US-30 and US-30-Bus. 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 Rock Springs. Useful for routing a service stop around your CTC test.

+1 more within 25 miles.

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