N.C. Gen. Stat. § 54C-173

The owner of a deposit account may transfer the owner's rights therein absolutely or conditionally to any other person eligible to hold the same, but the transfer may be made on the books of the savings bank only upon presentation of evidence of transfer satisfactory to the savings bank, and accompanied by the proper application for transfer by the transferor and transferee, who shall accept the account subject to the terms and conditions of the account contract, the bylaws of the savings bank, the certificate of incorporation of the savings bank, and all rules of the Commissioner of Banks. Notwithstanding the effectiveness of a transfer between the parties, the savings bank may treat the holder of record of a deposit account as the owner of the deposit account for all purposes, including payment and voting, in the case of a mutual savings bank, until the savings bank records the transfer and assignment.