Clean Truck Check Credentialed Tester

Clean Truck Check in Liberty, MO

1 credentialed tester in Liberty.

Testers in Liberty

Nearest in-person tester to Liberty

The closest CARB-credentialed Clean Truck Check tester is SCOTT MILLER in Kansas City, Kansas — about 14 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Clay 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
115
Trucking employees
2,143

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

Freight corridors near Liberty

Liberty sits on I-35, US-169, US-24, US-69, US-71 and MO-1. 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 Liberty. Useful for routing a service stop around your CTC test.

+16 more within 25 miles.

Source: © OpenStreetMap contributors. Last updated 2026-05-26.