HIGHWAY USE TAX

         WHAT IS A DOT NUMBER?

A Department of Transportation number is a number the Federal Motor Carrier Safety Administration, or FMCSA assigns to registered commercial vehicles.  

All carrier vehicles that weigh more than a certain amount, carry specific amounts of paying passengers, or operate between state lines require DOT numbers. In most U.S. states, local DOT requirements also apply. 

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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.