Clean Truck Check Credentialed Tester

Clean Truck Check in Tarkio, MO

1 credentialed tester in Tarkio.

Testers in Tarkio

Nearest in-person tester to Tarkio

The closest CARB-credentialed Clean Truck Check tester is Jeffrey O'Brien in Gretna, Nebraska — about 64 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Atchison 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
12
Trucking employees
28

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

Freight corridors near Tarkio

Tarkio sits on I-29, US-136, US-275 and US-59. 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 Tarkio. Useful for routing a service stop around your CTC test.

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