Clean Truck Check Credentialed Tester

Clean Truck Check Testers in Idaho

13 CARB-credentialed testers across 8 cities.

Cities with credentialed testers

Testers in Idaho

Trucking activity in Idaho

FMCSA MCMIS reports 11,800 active motor carriers registered with operations in Idaho. 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
4,000
Hazmat carriers
760
Passenger carriers
190
Heavy-duty power units
40,300
Medium-duty power units
7,100

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