N.C. Gen. Stat. § 160A-480.13
Bonds and notes issued under this Part are hereby made securities in which all public officers, agencies, and public bodies of the State and its political subdivisions, all insurance companies, trust companies, investment companies, banks, savings banks, building and loan associations, credit unions, pension or retirement funds, other financial institutions engaged in business in the State, executors, administrators, trustees, and other fiduciaries may properly and legally invest funds, including capital in their control or belonging to them. These bonds or notes are hereby made securities that may properly and legally be deposited with and received by any officer or agency of the State or political subdivision of the State for any purpose for which the deposit of bonds, notes, or obligations of the State or any political subdivision of the State is authorized by law. This section does not apply to any State pension or retirement fund or a pension or retirement fund of a political subdivision of the State.
N.C. Gen. Stat. § 160A-480.13