Companies that operate commercial vehicles transporting passengers or hauling cargo in interstate commerce must be registered with the FMCSA and must have a USDOT Number. Also, commercial intrastate hazardous materials carriers who haul quantities requiring a safety permit must register for a USDOT Number. The USDOT Number serves as a unique identifier when collecting and monitoring a company's safety information acquired during audits, compliance reviews, crash investigations, and inspections.

New-Entrant Program
All first-time carrier applicants for a USDOT Number will be automatically enrolled in the FMCSA New Entrant Safety Assurance Program. This program requires new entrants to pass a safety audit and maintain acceptable roadside safety performance over an initial 18-month period before they are given permanent registration status. In most cases, companies operating exclusively as brokers or non-vehicle-operating shippers or freight forwarders do not need to obtain a USDOT Number.

Some States Require USDOT Numbers

In select states (see green highlighted states or list below), all registrants of commercial motor vehicles, even intrastate and non-Motor Carrier registrants, are required to obtain a USDOT Number as a necessary condition for commercial vehicle registration.