Clean Truck Check Testers in Pennsylvania

Trucking activity in Pennsylvania

FMCSA MCMIS reports 51,800 active motor carriers registered with operations in Pennsylvania. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

38,700

Intrastate carriers

13,100

Hazmat carriers

3,100

Passenger carriers

1,380

Heavy-duty power units

169,800

Medium-duty power units

28,600

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