Clean Truck Check Testers in Missouri

Trucking activity in Missouri

FMCSA MCMIS reports 33,700 active motor carriers registered with operations in Missouri. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

25,400

Intrastate carriers

8,300

Hazmat carriers

2,600

Passenger carriers

580

Heavy-duty power units

152,400

Medium-duty power units

19,200

Source: FMCSA MCMIS Registration Statistics. Snapshot 2024-10-01. Last fetched 2026-05-18.