Clean Truck Check in Westminster, MD

Nearest in-person tester to Westminster

The closest CARB-credentialed Clean Truck Check tester is MEJIA'S TRANSPORT LLC in Frederick, Maryland — about 24 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Carroll 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

76

Trucking employees

348

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

Freight corridors near Westminster

Westminster sits on I-795, MD-140, MD-194, MD-26, MD-27 and MD-30. 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 Westminster. Useful for routing a service stop around your CTC test.

• Mountain View Plaza
  ~22 mi
  View on OpenStreetMap →

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