DOTNumber.us is a private, third-party filing assistance service that charges a consulting fee to secure registrants' MC and/or USDOT numbers from the United States Government and UCR. This service is independently offered and operated by Excelsior Enterprises International, Inc. (Excelsior).  It is not the Department of Transportation or any state agency and is not endorsed by or affiliated with any United States Government or state agency. By using this website, you agree to hold Excelsior, DOTNumber.us and its owners free from any and all litigation that may arise from the use of this website. You will be billed by our parent company "DOTFilings.com". All sales are final. Once an order number has been assigned, no refund will be issued. Fees for Unified Carrier Registration are based on actual number of vehicles in carrier's fleet. Example advertised is for one truck. Change in definition notice: effective 2010 a tractor-trailer now counts as just one vehicle subject to UCR filing requirements. Process Agent BOC-3 filing fee is included on all Interstate Motor Carrier Authority and Freight Broker License orders.