Clean Truck Check in Gregory, SD

Nearest in-person tester to Gregory

The closest CARB-credentialed Clean Truck Check tester is Dakota Carriers in Sioux Falls, South Dakota — about 136 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Gregory 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

9

Trucking employees

22

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

Freight corridors near Gregory

Gregory sits on US-18, US-183, SD-44 and SD-47. 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).