Clean Truck Check Testers in Oklahoma

Trucking activity in Oklahoma

FMCSA MCMIS reports 23,200 active motor carriers registered with operations in Oklahoma. The Clean Truck Check program reaches the heavy-duty subset that operates in California, which is why this directory exists.

Interstate carriers

17,800

Intrastate carriers

5,400

Hazmat carriers

1,900

Passenger carriers

320

Heavy-duty power units

91,300

Medium-duty power units

13,200

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