What is USDOT number?
The unique number FMCSA uses to identify a motor carrier for safety monitoring.
A USDOT number identifies a company that operates commercial motor vehicles in interstate commerce, and in many states intrastate commerce too. FMCSA uses it to track a carrier's inspections, crashes, audits and compliance reviews.
The number is free and must be kept current with an MCS-150 update every 24 months. An inactive USDOT number can lead to fines and out-of-service orders.