N.C. Gen. Stat. § 135-48.25
The State Treasurer, in consultation with the Board of Trustees, may adopt rules to implement this Article. The State Treasurer shall provide to all employing units, all health benefit representatives, all relevant health care providers affected by a rule, and to any other persons requesting a written description and approved by the State Treasurer written notice and an opportunity to comment not later than 30 days prior to adopting, amending, or rescinding a rule, unless immediate adoption of the rule without notice is necessary in order to fully effectuate the purpose of the rule. Rules of the Board of Trustees shall remain in effect until amended or repealed by the State Treasurer. The State Treasurer shall provide a written description of the rules adopted under this section to all employing units, all health benefit representatives, all relevant health care providers affected by a rule, and to any other persons requesting a written description and approved by the State Treasurer on a timely basis. Rules adopted by the State Treasurer to implement this Article are not subject to Article 2A of Chapter 150B of the General Statutes.
N.C. Gen. Stat. § 135-48.25