Clean Truck Check Credentialed Tester

Clean Truck Check in New London, MO

1 credentialed tester in New London.

Testers in New London

Nearest in-person tester to New London

The closest CARB-credentialed Clean Truck Check tester is Rapid Response in Wentzville, Missouri — about 61 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Ralls 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
77

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

Freight corridors near New London

New London sits on I-172, I-72, US-24, US-36, US-61 and US-61-Business. 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 New London. Useful for routing a service stop around your CTC test.

+1 more within 25 miles.

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