Clean Truck Check in Red Oak, IA

Nearest in-person tester to Red Oak

The closest CARB-credentialed Clean Truck Check tester is Jeffrey O'Brien in Gretna, Nebraska — about 54 miles away (straight-line). Smart CTC tests over the truck’s OBD port from anywhere, with no drive and no appointment.

Trucking activity in Montgomery 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

12

Trucking employees

21

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

Freight corridors near Red Oak

Red Oak sits on US-34, US-59, US-71, CR-M16 and IA-48. 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).