Clean Truck Check Testers in Massachusetts

Trucking activity in Massachusetts

FMCSA MCMIS reports 17,800 active motor carriers registered with operations in Massachusetts. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

11,200

Intrastate carriers

6,600

Hazmat carriers

700

Passenger carriers

940

Heavy-duty power units

36,400

Medium-duty power units

10,900

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