Clean Truck Check in Shamrock, TX

Nearest in-person tester to Shamrock

The closest CARB-credentialed Clean Truck Check tester is FTC Transportation Inc in Oklahoma City, Oklahoma — about 150 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Wheeler 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

5

Trucking employees

10

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

Freight corridors near Shamrock

Shamrock sits on I-40, I-40-Business, US-66-Hist, US-83, US-Historic-66 and CR-N1670. 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 Shamrock. Useful for routing a service stop around your CTC test.

• Love's Travel Stop
  Love's · ~21 mi
  View on OpenStreetMap →

+1 more within 25 miles.

Source: © OpenStreetMap contributors. Last updated 2026-05-27.