N.C. Gen. Stat. § 159G-44

The Department may adopt rules to implement this Chapter. Chapter 150B of the General Statutes, the Administrative Procedure Act, governs the adoption of rules by the Department. A rule adopted to administer a loan or grant from the CWSRF or the DWSRF must be consistent with federal law. The Department must give a copy of the rules adopted to implement this Article without charge to a person who requests a copy.