North Carolina General Statutes Chapter 143. State Departments, Institutions, and Commissions § 143-131. When counties, cities, towns and other subdivisions may let contracts on informal bids

(a) All contracts for construction or repair work or for the purchase of apparatus, supplies, materials, or equipment, involving the expenditure of public money in the amount of thirty thousand dollars ($30,000) or more, but less than the limits prescribed in G.S. 143-129, made by any officer, department, board, local school administrative unit, or commission of any county, city, town, or other subdivision of this State shall be made after informal bids have been secured; provided, however, that The University of North Carolina and its constituent institutions shall be required to comply with the provisions of this subsection for all contracts for construction or repair work involving the expenditure of public money in the amount of one hundred thousand dollars ($100,000) or more, but less than the limits prescribed in G.S. 143-129. All such contracts shall be awarded to the lowest responsible, responsive bidder, taking into consideration quality, performance, and the time specified in the bids for the performance of the contract. It shall be the duty of any officer, department, board, local school administrative unit, or commission entering into such contract to keep a record of all bids submitted, and such record shall not be subject to public inspection until the contract has been awarded.

(b) All public entities shall solicit minority participation in contracts for the erection, construction, alteration or repair of any building awarded pursuant to this section. The public entity shall maintain a record of contractors solicited and shall document efforts to recruit minority business participation in those contracts. Nothing in this section shall be construed to require formal advertisement of bids. All data, including the type of project, total dollar value of the project, dollar value of minority business participation on each project, and documentation of efforts to recruit minority participation shall be reported to the Department of Administration, Office for Historically Underutilized Business, upon the completion of the project.