Clean Truck Check Credentialed Tester

Clean Truck Check in Decatur, TN

1 credentialed tester in Decatur.

Testers in Decatur

Nearest in-person tester to Decatur

The closest CARB-credentialed Clean Truck Check tester is Green Valley Transportation in Knoxville, Tennessee — about 45 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Freight corridors near Decatur

Decatur sits on I-75, US-11, US-27, SR-30, SR-302 and SR-304. 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 Decatur. Useful for routing a service stop around your CTC test.

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