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Clean Truck Check in Karnes City, TX
1 credentialed tester in Karnes City.
Testers in Karnes City
Nearest in-person tester to Karnes City
The closest CARB-credentialed Clean Truck Check tester is CENTRAL COAST TRANSPORT, INC in Converse, Texas — about 48 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.
Trucking activity in Karnes 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
15
Trucking employees
161
Source: FMCSA MCMIS carrier census, US Census County Business Patterns 2021.
Freight corridors near Karnes City
Karnes City sits on US-181, US-181-Bus, US-181-Business, FM-81, FM-887 and TX-123. 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 Karnes City. Useful for routing a service stop around your CTC test.
- Quality Services Towing & Tires19499 TX 80, Gillett, TX 78116~18 mi
- Circle K / Valero Truck Stop1003 State Highway 123 South, Stockdale, TX 78160Circle K · ~24 mi
- Shell / Texas Cooler Truck Stop1000 State Highway 123 South, Stockdale, TX 78160~24 mi
- Circle K908 10th Street, Floresville, TX 78114~24 mi
Source: © OpenStreetMap contributors. Last updated 2026-05-27.