Clean Truck Check Testers in Colorado

Trucking activity in Colorado

FMCSA MCMIS reports 24,300 active motor carriers registered with operations in Colorado. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

16,800

Intrastate carriers

7,500

Hazmat carriers

1,640

Passenger carriers

690

Heavy-duty power units

75,200

Medium-duty power units

16,800

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