Clean Truck Check Credentialed Tester

Clean Truck Check in Brownsville, TX

1 credentialed tester in Brownsville.

Testers in Brownsville

Nearest in-person tester to Brownsville

The closest CARB-credentialed Clean Truck Check tester is Ruben Leal in Weslaco, Texas — about 33 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Cameron 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
151
Trucking employees
1,738

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

Freight corridors near Brownsville

Brownsville sits on I-169, I-69E, US-281, US-77, US-77-Bus and US-77-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 Brownsville. Useful for routing a service stop around your CTC test.

+3 more within 25 miles.

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