46 CFR § 67.117 - Vessel name designation.
(a) The owner of a vessel must designate a name for the vessel on the Application for Initial Issue, Exchange, or Replacement of Certificate of Documentation; or Redocumentation (form CG–1258) submitted to the Director, National Vessel Documentation Center:
(1) Upon application for initial documentation of the vessel; or
(2) When the owner elects to change the name of the vessel.
(b) The name designated:
(1) Must be composed of letters of the Latin alphabet or Arabic or Roman numerals;
(2) May not be identical, actually or phonetically, to any word or words used to solicit assistance at sea; and
(3) May not contain nor be phonetically identical to obscene, indecent, or profane language, or to racial or ethnic epithets.