N.C. Gen. Stat. § 106-418.5
Collection of payment for livestock purchased at auction shall be made by the public livestock market on the same date of purchase of the livestock, and the proceeds therefrom shall be deposited by the public livestock market in their custodial account not later than the next banking business day following the date of sale. Collection for livestock purchased by auction shall be made by cash, check, or draft. There shall be no loans made from the custodial account of any public livestock market to any purchaser of livestock at said sales establishment. Payment shall be made by the public livestock market to the seller of livestock at auction not later than one banking business day after the date of sale of the animal or animals.
N.C. Gen. Stat. § 106-418.5