N.C. Gen. Stat. § 136-89.54

The Department of Transportation, as the highway authority of the State, and the governing body of any county, city or town are authorized, after a public hearing to be held in the county affected, to enter into agreements with each other, and the Department of Transportation is authorized to enter into agreements with the federal government, respecting the financing, planning, establishment, improvement, maintenance, use, regulations, or vacation of controlled-access facilities or other public ways in their respective jurisdictions, to facilitate the purposes of this Article.