Clean Truck Check Testers in Mississippi

Trucking activity in Mississippi

FMCSA MCMIS reports 16,900 active motor carriers registered with operations in Mississippi. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

12,100

Intrastate carriers

4,800

Hazmat carriers

1,140

Passenger carriers

230

Heavy-duty power units

73,800

Medium-duty power units

9,600

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