Ill. Admin. Code tit. 44 § 1.2038
A bidder or offeror may withdraw or modify a paper bid or proposal if notice of the withdrawal or modification is received by the SPO before the latest time specified for receipt of bids or proposals. Any modification or withdrawal of a paper bid or proposal, however, must be made in writing and received by the SPO prior to the scheduled bid or proposal opening. When time is of the essence, the SPO may agree to receive modifications or withdrawals conveyed by electronic mail or telephone. An originally signed written confirmation of a telephone modification or withdrawal shall be mailed or delivered by the bidder or offeror on the same day. Withdrawals of bids or proposals after bid or proposal opening will not ordinarily be permitted; however, in those cases in which the judgment of the SPO, based on clear and demonstrable evidence, the bidder or offeror has made a bona fide error in the preparation of the bid or proposal and that error will result in a substantial loss to the bidder or offeror, an exception may be made.
A minor informality or irregularity is one that is a matter of form or pertains to some immaterial or inconsequential defect or variation from the exact requirement of the solicitation, the correction or waiver of which would not be prejudicial to the State or to other bidders or offerors (i.e., the effect on price, quality, quantity, delivery or contractual conditions is negligible). The SPO shall waive these informalities or allow the bidder to correct them depending on which is in the best interest of the State. Minor informalities include insignificant mistakes that have an effect on price, quantity, quality, delivery or contractual conditions is negligible.
When a paper bid or proposal is corrected or withdrawn, or correction or withdrawal is denied, a written determination shall be prepared by the SPO showing that relief was granted or denied in accordance with this Part.
Ill. Admin. Code tit. 44, § 1.2038
Amended at 36 Ill. Reg. 10729, effective August 6, 2012