Clean Truck Check Testers in South Dakota

Trucking activity in South Dakota

FMCSA MCMIS reports 6,900 active motor carriers registered with operations in South Dakota. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

5,400

Intrastate carriers

1,500

Hazmat carriers

540

Passenger carriers

110

Heavy-duty power units

35,800

Medium-duty power units

3,900

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