Clean Truck Check in Spearfish, SD

Nearest in-person tester to Spearfish

The closest CARB-credentialed Clean Truck Check tester is McCandless Truck Center Cheyenne in Cheyenne, Wyoming — about 238 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Lawrence 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

30

Trucking employees

85

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

Freight corridors near Spearfish

Spearfish sits on I-90, I-90-Bus, I-90-Business, US-14, US-14A and US-212. 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).