33 CFR 187.306: Certificate of title required.

(a) Except as otherwise provided in paragraphs (b) and (c) of this section, the owner of a vessel must deliver to the office of the State in which the vessel is principally used an application for a certificate of title for the vessel, with the applicable fee, not later than 20 days after the later of—

(1) The date of a transfer of ownership; or

(2) The date the State becomes the State of principal use.

(b) An application for a certificate of title is not required for—

(1) A documented vessel;

(2) A foreign-documented vessel;

(3) A barge;

(4) A vessel before delivery if the vessel is under construction or completed pursuant to contract; or

(5) A vessel held by a dealer for sale or lease.

(c) The office may not issue, transfer, or renew a certificate of number for a vessel issued pursuant to 46 U.S.C. 12301 unless it has created a certificate of title for the vessel or an application for a certificate for the vessel and the applicable fee have been delivered to the office.