N.C. Gen. Stat. § 116D-48

The State Treasurer may authorize, execute, obtain, or otherwise provide for bond insurance, investment contracts, credit and liquidity facilities, interest rate swap agreements and other derivative products, and any other related instruments and matters the State Treasurer determines are desirable in connection with the issuance of bonds or notes. The State Treasurer is authorized to employ and designate any financial consultants, underwriters, and bond attorneys to be associated with any bond issue under this Article as the State Treasurer considers necessary.