Clean Truck Check Credentialed Tester

Clean Truck Check in Pearsall, TX

1 credentialed tester in Pearsall.

Testers in Pearsall

Nearest in-person tester to Pearsall

The closest CARB-credentialed Clean Truck Check tester is SMG Ventures in San Antonio, Texas — about 45 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Frio 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
22
Trucking employees
231

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

Freight corridors near Pearsall

Pearsall sits on I-35, I-35-Bus, US-57, FM-140, Spur-581 and TX-85. 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 Pearsall. Useful for routing a service stop around your CTC test.

+1 more within 25 miles.

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