46 C.F.R. § 67.111
(a) The owner of a vessel must submit an Application for Initial Issue, Exchange, or Replacement of Certificate of Documentation; or Redocumentation (form CG-1258) to the Director, National Vessel Documentation Center, to apply for an official number for the vessel when:
[CGD 89-007, CGD 89-007a, 58 FR 60266, Nov. 15, 1993, 58 FR 65131, Dec. 13, 1993, as amended by CGD 95-014, 60 FR 31604, June 15, 1995; USCG-1998-4442, 63 FR 52190, Sept. 30, 1998]