FMCSA operating authority is often identified as an "MC," "FF," or "MX" number, depending on the type of authority that is granted. Apply for your trucking authority.An Operating Authority Letter includes a company's name, address, USDOT Number, and MC number. This letter is necessary for booking loads. Typically, it takes at least five to seven weeks to complete the state and federal approval process for a company to receive trucking authority. An original application must be submitted to NYSDOT, Office of Modal Safety and. Security, 50 Wolf Road, POD 53, Albany, New York 1532-0879. A company may apply for operating authority based on the company's business operations. If you are in Fulton County's water service area, you may click here to fill out our interest form to let us know that you would like to participate. Variance Application (download to fill out electronically).