46 CFR 67.50 – Requirement for title evidence
The owner of a vessel must present title evidence in accordance with one of the methods specified in this subpart:
(a) When application is made for a coastwise endorsement for a vessel which has not previously been qualified for such endorsement;
(b) For initial documentation of a vessel;
(c) When the ownership of a documented vessel changes in whole or in part;
(d) When the general partners of a partnership owning a documented vessel change by addition, deletion, or substitution, without dissolution of the partnership; or
(e) When a vessel which has been deleted from documentation is returned to documentation and there has been an intervening change in ownership.