Clean Truck Check in St. Louis, MO

Nearest in-person tester to St. Louis

The closest CARB-credentialed Clean Truck Check tester is Dynamic Transit CO> in Granite City, Illinois — about 7 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in St. Louis 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

147

Trucking employees

3,878

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

Freight corridors near St. Louis

St. Louis sits on I-170, I-255, I-270, I-44, I-55 and I-64. 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).