Clean Truck Check in Walla Walla, WA

Nearest in-person tester to Walla Walla

The closest CARB-credentialed Clean Truck Check tester is JJ Keller in Richland, Washington — about 46 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Walla Walla 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

16

Trucking employees

194

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

Freight corridors near Walla Walla

Walla Walla sits on US-12, OR-11, WA-124, WA-125 and WA-125-Spur. 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).