N.C. Gen. Stat. § 159D-9

Bonds issued under this Article may be sold in such manner, either at public or private sale, and for such price as the Local Government Commission determines to be for the best interests of the agency and effectuate best the purposes of this Article irrespective of the interest limitations set forth in G.S. 24-1.1, as amended, and successor provisions, as long as the sale is approved by the agency and the obligor.