N.C. Gen. Stat. § 115C-233
Each local school administrative unit may establish and maintain summer schools. Such summer schools as may be established shall be administered by local boards of education and shall be conducted in accordance with standards developed by the State Board of Education. The standards so developed shall specify the requirements for approved curriculum, the qualifications of the personnel, the length of the session, and the conditions under which students may be granted credit for courses pursued during a summer school. In determining the eligibility of students for admission to summer schools, boards of education shall be governed by Article 9 of this Chapter, and G.S. 115C-366(b) and 115C-367 to 115C-370. Boards of education of local school administrative units may provide for summer schools from funds made available for that purpose by the State Board of Education, funds appropriated to the local school administrative unit by the tax-levying authority, and from any other revenues available for the purpose.
N.C. Gen. Stat. § 115C-233