Clean Truck Check Credentialed Tester

Clean Truck Check in Sulphur Springs, TX

1 credentialed tester in Sulphur Springs.

Testers in Sulphur Springs

Nearest in-person tester to Sulphur Springs

The closest CARB-credentialed Clean Truck Check tester is Lone Star Tire Diesel Service in Dallas, Texas — about 70 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Hopkins 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
42
Trucking employees
335

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

Freight corridors near Sulphur Springs

Sulphur Springs sits on I-30, US-67, US-67-Bus, FM-1567, FM-2653 and FM-514. 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 Sulphur Springs. Useful for routing a service stop around your CTC test.

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