Clean Truck Check Credentialed Tester

Clean Truck Check in Franklin, TN

1 credentialed tester in Franklin.

Testers in Franklin

Nearest in-person tester to Franklin

The closest CARB-credentialed Clean Truck Check tester is Velocity Truck in Nashville, Tennessee — about 18 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Williamson 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
67
Trucking employees
1,064

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

Freight corridors near Franklin

Franklin sits on I-24, I-40, I-440, I-65, I-840 and US-31. 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 Franklin. Useful for routing a service stop around your CTC test.

+13 more within 25 miles.

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