Clean Truck Check in Libby, MT

Nearest in-person tester to Libby

The closest CARB-credentialed Clean Truck Check tester is JJ Keller in Richland, Washington — about 229 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Lincoln 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

21

Trucking employees

84

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

Freight corridors near Libby

Libby sits on US-2 and MT-56. 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).