How do I apply for a U.S. Department of Transportation (DOT) number?

To obtain your U.S. DOT number instantly, file online. You can also request an application (MCS-150 and MCS-150a) by calling the Federal Motor Carrier Safety Administration (FMCSA) at 800-832-5660, or by calling the FMCSA office in your respective state:

  • Iowa: 515-233-7400
  • Nebraska: 402-437-5986

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1. What is a Commercial Motor Vehicle?
2. How do I apply for a U.S. Department of Transportation (DOT) number?