N.C. Gen. Stat. § 110-141
The North Carolina Department of Health and Human Services shall supervise the administration of the program in accordance with federal law and shall cause the provisions of this Article to be effectuated and to secure child support from absent, deserting, abandoning and nonsupporting parents.
Effective July 1, 2010, each child support enforcement program being administered by the Department of Health and Human Services on behalf of counties shall be administered, or the administration provided for, by the board of county commissioners of those counties. Until July 1, 2010, it shall be the responsibility of the Department of Health and Human Services to administer or provide for the administration of the program in those counties.
A county may negotiate alternative arrangements to the procedure outlined in G.S. 110-130 for designating a local person or agency to administer the provisions of this Article in that county.
N.C. Gen. Stat. § 110-141