N.C. Gen. Stat. § 54C-180

A savings bank may offer a savings promotion raffle in which the sole consideration required for a chance of winning designated prizes is the deposit of a minimum specified amount of money in a savings account or other savings program offered by the savings bank. A savings bank shall maintain records sufficient to facilitate an audit of the savings promotion raffle, shall conduct the savings promotion raffle in a safe and sound manner, and shall fully disclose the terms and conditions of the promotion to account holders and prospective account holders of the savings bank.