Clean Truck Check Testers in Tennessee

Trucking activity in Tennessee

FMCSA MCMIS reports 31,200 active motor carriers registered with operations in Tennessee. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

23,800

Intrastate carriers

7,400

Hazmat carriers

2,200

Passenger carriers

720

Heavy-duty power units

137,600

Medium-duty power units

17,800

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