N.C. Gen. Stat. § 159D-56

If any member, officer or employee of the agency is interested either directly or indirectly, or is an officer or employee of or has an ownership interest in any firm or corporation interested directly or indirectly, in any contract with the agency, this interest shall be disclosed to the agency and shall be set forth in the minutes of the agency, and the member, officer or employee having an interest in a contract shall not participate on behalf of the agency in the authorization of the contract.