S.C. Code Ann. § 11-35-3020
(2) Exceptions in Competitive Sealed Bidding Procedures. The process of competitive sealed bidding as required by subsection (1) must be performed in accordance with the procedures outlined in Article 5 of this code subject to the following exceptions:
(b) Bid Acceptance. Instead of Section 11-35-1520(6), the following provision applies. Bids must be accepted unconditionally without alteration or correction, except as otherwise authorized in this code. The using agency's invitation for bids must set forth all requirements of the bid including, but not limited to:
(c) Instead of Section 11-35-1520(10) the following provisions apply. Unless there is a compelling reason to reject bids as prescribed by regulation of the board, notice of an intended award of a contract to the lowest responsive and responsible bidder whose bid meets the requirements set forth in the invitation for bids must be given by posting the notice at a location that is specified in the invitation for bids. The invitation for bids and the posted notice must contain a statement of the bidder's right to protest pursuant to Section 11-35-4210(1) and the date and location of posting must be announced at bid opening. In addition to posting notice, the using agency promptly shall send all responsive bidders a copy of the notice of intended award and of the bid tabulation. The mailed notice must indicate the posting date and must contain a statement of the bidder's right to protest pursuant to Section 11-35-4210(1).
After ten days' notice is given, the using agency may enter into a contract with the bidder named in the notice in accordance with the provisions of this code and of the bid solicited. The procurement officer must comply with Section 11-35-1810.
If, at bid opening, only one bid is received and determined to be responsive and responsible and within the agency's construction budget, award may be made without the ten-day waiting period.
(d) Negotiations after Unsuccessful Competitive Sealed Bidding. Instead of Section 11-35-1540, the following provisions apply: