All the powers, duties and responsibilities imposed by law upon the superintendents of county administrative units shall, with respect to city administrative units, be imposed upon, and exercised by, the superintendents of city administrative units, in the same manner and to the same extent, insofar as applicable thereto, as such powers and duties are exercised and performed by superintendents of county administrative units with reference to said county administrative units.
N.C. Gen. Stat. § 115C-276