Clean Truck Check in Boulder, MT

Nearest in-person tester to Boulder

The closest CARB-credentialed Clean Truck Check tester is Western Transport inc. in Idaho Falls, Idaho — about 193 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Jefferson 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

4

Trucking employees

9

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

Freight corridors near Boulder

Boulder sits on I-15. 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).