S.C. Code Ann. § 50-23-135
(A) A person who comes into possession of an abandoned, junked, adrift, destroyed, or salvaged watercraft or outboard motor shall notify the department in writing of possession within ten days of acquiring possession. No person in possession may acquire any right of ownership or sell a watercraft or outboard motor under this chapter without first obtaining a title. If a security interest has been perfected, the person in possession shall notify the lienholder by certified mail, return receipt requested, giving thirty days for response. The person in possession who lays claim to a watercraft or outboard motor is required to submit an affidavit to the department setting forth the circumstances under which he came into possession of the watercraft or outboard motor and such information as the department requires. An owner who abandons or junks a watercraft or outboard motor, either on the land or waters of the State, shall notify the department immediately in writing and deliver to it any title or, if the title is lost or destroyed, a sworn statement of that fact within ten days of the abandonment. A person in possession of an abandoned or junked watercraft or outboard motor:
(B) A person finding a watercraft or outboard motor submerged, a watercraft, or watercraft with an outboard motor that is adrift on the waters of the State or one that has drifted onto land, and salvages the watercraft or outboard motor from the waters of the State, shall comply with subsection (A) to determine the owner giving the serial number, make, year, model, length or horsepower, or hull identification number, serial number, or registration number.