30 ILCS 500/20-40

Cancellation of invitations for bids or requests for proposals. An invitation for bids, a request for proposals, or any other solicitation may be cancelled without penalty, or any and all bids, offers, proposals, or any other solicitation may be rejected in whole or in part as may be specified in the solicitation, when it is in the best interests of the State in accordance with rules. The reasons for cancellation or rejection shall be made part of the contract file.