Clean Truck Check Credentialed Tester

Clean Truck Check in Oacoma, SD

1 credentialed tester in Oacoma.

Testers in Oacoma

Nearest in-person tester to Oacoma

The closest CARB-credentialed Clean Truck Check tester is Dakota Carriers in Sioux Falls, South Dakota — about 130 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Freight corridors near Oacoma

Oacoma sits on I-90, I-90-Business, SD-248, SD-47 and SD-50. 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).

Nearby truck stops

OpenStreetMap-tagged truck stops, services areas, and HGV-marked fuel stations within 25 miles of Oacoma. Useful for routing a service stop around your CTC test.

Source: © OpenStreetMap contributors. Last updated 2026-05-27.