N.C. Gen. Stat. § 143-129.1
A public agency may allow a bidder submitting a bid pursuant to G.S. 143-129 for construction or repair work or for the purchase of apparatus, supplies, materials, or equipment to withdraw his bid from consideration after the bid opening without forfeiture of his bid security if the price bid was based upon a mistake, which constituted a substantial error, provided the bid was submitted in good faith, and the bidder submits credible evidence that the mistake was clerical in nature as opposed to a judgment error, and was actually due to an unintentional and substantial arithmetic error or an unintentional omission of a substantial quantity of work, labor, apparatus, supplies, materials, equipment, or services made directly in the compilation of the bid, which unintentional arithmetic error or unintentional omission can be clearly shown by objective evidence drawn from inspection of the original work papers, documents or materials used in the preparation of the bid sought to be withdrawn. A request to withdraw a bid must be made in writing to the public agency which invited the proposals for the work prior to the award of the contract, but not later than 72 hours after the opening of bids, or for a longer period as may be specified in the instructions to bidders provided prior to the opening of bids.
If a request to withdraw a bid has been made in accordance with the provisions of this section, action on the remaining bids shall be considered, in accordance with North Carolina G.S. 143-129, as though said bid had not been received. Notwithstanding the foregoing, such bid shall be deemed to have been received for the purpose of complying with the requirements of G.S. 143-132. If the work or purchase is relet for bids, under no circumstances may the bidder who has filed a request to withdraw be permitted to rebid the work or purchase.
If a bidder files a request to withdraw his bid, the agency shall promptly hold a hearing thereon. The agency shall give to the withdrawing bidder reasonable notice of the time and place of any such hearing. The bidder, either in person or through counsel, may appear at the hearing and present any additional facts and arguments in support of his request to withdraw his bid. The agency shall issue a written ruling allowing or denying the request to withdraw within five days after the hearing. If the agency finds that the price bid was based upon a mistake of the type described in the first paragraph of this section, then the agency shall issue a ruling permitting the bidder to withdraw without forfeiture of the bidder's security. If the agency finds that the price bid was based upon a mistake not of the type described in the first paragraph of this section, then the agency shall issue a ruling denying the request to withdraw and requiring the forfeiture of the bidder's security. A denial by the agency of the request to withdraw a bid shall have the same effect as if an award had been made to the bidder and a refusal by the bidder to accept had been made, or as if there had been a refusal to enter into the contract, and the bidder's bid deposit or bid bond shall be forfeited.
In the event said ruling denies the request to withdraw the bid, the bidder shall have the right, within 20 days after receipt of said ruling, to contest the matter by the filing of a civil action in any court of competent jurisdiction of the State of North Carolina. The procedure shall be the same as in all civil actions except all issues of law and fact and every other issue shall be tried de novo by the judge without jury; provided that the matter may be referred in the instances and in the manner provided for by North Carolina G.S. 1A-1, Rule 53, as amended. Notwithstanding the foregoing, if the public agency involved is the Department of Administration, it may follow its normal rules and regulations with respect to contested matters, as opposed to following the administrative procedures set forth herein. If it is finally determined that the bidder did not have the right to withdraw his bid pursuant to the provisions of this section, the bidder's security shall be forfeited. Every bid bond or bid deposit given by a bidder to a public agency pursuant to G.S. 143-129 shall be conclusively presumed to have been given in accordance with this section, whether or not it be so drawn as to conform to this section. This section shall be conclusively presumed to have been written into every bid bond given pursuant to G.S. 143-129.
Neither the agency nor any elected or appointed official, employee, representative or agent of such agency shall incur any liability or surcharge, in the absence of fraud or collusion, by permitting the withdrawal of a bid pursuant to the provisions of this section.
No withdrawal of the bid which would result in the award of the contract on another bid of the same bidder, his partner, or to a corporation or business venture owned by or in which he has an interest shall be permitted. No bidder who is permitted to withdraw a bid shall supply any material or labor to, or perform any subcontract or work agreement for, any person to whom a contract or subcontract is awarded in the performance of the contract for which the withdrawn bid was submitted, without the prior written approval of the agency. Whoever violates the provisions of the foregoing sentence shall be guilty of a Class 1 misdemeanor.
N.C. Gen. Stat. § 143-129.1