Clean Truck Check Credentialed Tester

Clean Truck Check in Webster, SD

1 credentialed tester in Webster.

Testers in Webster

Nearest in-person tester to Webster

The closest CARB-credentialed Clean Truck Check tester is Fresh Logistics in Wood Lake, Minnesota — about 108 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Day 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
4
Trucking employees
11

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

Freight corridors near Webster

Webster sits on US-12 and SD-25. 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 Webster. Useful for routing a service stop around your CTC test.

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