49 C.F.R. § 385.303 How does a motor carrier register with the FMCSA?
Title 49 - Transportation
A motor carrier may contact the FMCSA by internet (www.fmcsa.dot.gov); or Washington, DC headquarters by mail at, FMCSA, 400 7th Street SW., Washington, DC 20590; fax (703) 280–4003; or telephone 1–800–832–5660, and request the application materials for a new entrant motor carrier.
Title 49: Transportation
PART 385—SAFETY FITNESS PROCEDURES
Subpart D—New Entrant Safety Assurance Program
§ 385.303 How does a motor carrier register with the FMCSA?