143-129.9. Alternative competitive bidding methods.
(a) A political subdivision of the State may use any of the following methods to obtain competitive bids for the purchase of apparatus, supplies, materials, or equipment as an alternative to the otherwise applicable requirements in this Article:
(1) Reverse auction. - For purposes of this section, "reverse auction" means a real-time purchasing process in which bidders compete to provide goods at the lowest selling price in an open and interactive environment. The bidders' prices may be revealed during the reverse auction. A reverse auction may be conducted by the political subdivision or by a third party under contract with the political subdivision. A political subdivision may also conduct a reverse auction through the State electronic procurement system, and compliance with the procedures and requirements of the State's reverse auction process satisfies the political subdivision's obligations under this Article.
(2) Electronic bidding. - A political subdivision may receive bids electronically in addition to or instead of paper bids. Procedures for receipt of electronic bids for contracts that are subject to the requirements of G.S. 143-129 shall be designed to ensure the security, authenticity, and confidentiality of the bids to at least the same extent as is provided for with sealed paper bids.
(b) The requirements for advertisement of bidding opportunities, timeliness of the receipt of bids, the standard for the award of contracts, and all other requirements in this Article that are not inconsistent with the methods authorized in this section shall apply to contracts awarded under this section.
(c) Reverse auctions shall not be utilized for the purchase or acquisition of construction aggregates, including, but not limited to, crushed stone, sand, and gravel.