Clean Truck Check in Polson, MT

Nearest in-person tester to Polson

The closest CARB-credentialed Clean Truck Check tester is JJ Keller in Richland, Washington — about 262 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Lake 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

29

Trucking employees

32

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

Freight corridors near Polson

Polson sits on US-93, MT-28 and MT-35. 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).