A US Department of Transportation (USDOT) number is a unique identifier assigned to all entities operating commercial motor vehicles. These entities may be motor carriers, brokers, freight forwarders, or leasing companies. For example, a trucking company hauling hazardous materials would need a USDOT number to operate legally.
USDOT numbers are essential for ensuring the safety and compliance of the trucking industry. They allow regulatory agencies to track and monitor the performance of these entities and help to prevent accidents and protect the public.