Clean Truck Check Credentialed Tester

Clean Truck Check Testers in Connecticut

2 CARB-credentialed testers across 1 city.

Testers in Connecticut

Trucking activity in Connecticut

FMCSA MCMIS reports 11,500 active motor carriers registered with operations in Connecticut. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers
7,800
Intrastate carriers
3,700
Hazmat carriers
540
Passenger carriers
380
Heavy-duty power units
23,400
Medium-duty power units
7,100

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