N.C. Gen. Stat. § 58-7-65

Any domestic insurer may, upon the approval of the Commissioner, transfer its domicile to any other state in which it is licensed to transact the business of insurance. Upon such a transfer such insurer shall cease to be a domestic insurer and shall be licensed in this State, if qualified, as a foreign insurer. The Commissioner shall approve any such proposed transfer unless he determines that such transfer is not in the interest of the policyholders of this State.