North Carolina General Statutes Chapter 106. Agriculture § 106-405.5. Sanitation

Premises on which garbage feeding is permitted under this Part must be equipped with feeding platforms constructed of concrete, wood or other impervious material, or troughs of such material of sufficient size to accommodate the swine herd. Premises must be kept free of collections of unused garbage and waste materials. Sanitation, rat and fly control measures must be practiced as a further means of the prevention of the spread of diseases.