N.C. Gen. Stat. § 58-71-110

A bail bondsman shall not sign nor countersign in blank bail bonds, nor shall he give a power of attorney to, or otherwise authorize, anyone to countersign his name to bonds unless the person so authorized is a licensed bondsman or runner directly employed by the bondsman giving such power of attorney. Copies of all such powers of attorney and revocations of such powers of attorney must be filed immediately with the Commissioner and the clerk of superior court of any county in the State where said bondsman giving the power of attorney is currently writing or is obligated on bail bonds.