49 CFR § 368.3-1T - Starting the application process: URS online application.
(a) Notwithstanding any other provision of this part, new applicants as defined in paragraph (b) of this section must apply for a USDOT number and operating authority by electronically filing Form MCSA-1, the URS online application (available at http://www.fmcsa.dot.gov/urs) to request authority pursuant to 49 U.S.C. 13902 to provide interstate transportation in municipalities in the United States on the United States-Mexico international border or within the commercial zones of such municipalities as defined in 49 U.S.C. 13902(c)(4)(A).
(b) For purposes of this section, a “new applicant” is an citizen of Mexico or a motor carrier owned or controlled by a citizen of Mexico, applying for a USDOT number and operating authority who does not at the time of application have an active registration or USDOT, Motor Carrier (MC), Mexico owned or controlled (MX) or Freight Forwarder (FF) number, and who has never had an active registration or USDOT, MC, MX, or FF number.
(c) Form MCSA-1, is the URS online application, and both the application and its instructions are available from the FMCSA Web site at http://www.fmcsa.dot.gov/urs.