In order to be eligible for consideration, sealed bids for improvements shall state which improvement(s) the bid is for and shall be accompanied by a certified check or bank draft made out in the full amount of the bid. If any sealed bid is not accepted, the deposit shall be returned to the bidder within thirty days after the day on which the bids are opened. All sealed bids shall be mailed or delivered to the Department. Such bids must be received at least three days prior to the date set for their opening. All sealed bids shall remain sealed until the time set for their opening, at which time the two highest bids shall be read.
261 Neb. Admin. Code, ch. 4, § 026