Clean Truck Check Testers in Arizona

Trucking activity in Arizona

FMCSA MCMIS reports 27,800 active motor carriers registered with operations in Arizona. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

23,200

Intrastate carriers

4,600

Hazmat carriers

2,100

Passenger carriers

560

Heavy-duty power units

97,400

Medium-duty power units

24,300

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