N.C. Gen. Stat. § 160D-308

Rules of procedure that are consistent with the provisions of this Chapter may be adopted by the governing board for any or all boards created under this Article. In the absence of action by the governing board, each board created under this Article is authorized to adopt its own rules of procedure that are consistent with the provisions of this Chapter. A copy of any adopted rules of procedure shall be maintained by the local government clerk or such other official as designated by ordinance and posted on the local government website if one exists. Each board shall keep minutes of its proceedings.