Clean Truck Check in Rockford, IL

Nearest in-person tester to Rockford

The closest CARB-credentialed Clean Truck Check tester is Woodstock Truck and Trailer Repair in Woodstock, Illinois — about 32 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Winnebago 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

187

Trucking employees

1,729

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

Freight corridors near Rockford

Rockford sits on I-39, I-90, US-20, US-20-Business, US-51 and CR-T40. 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).