Ill. Admin. Code tit. 44, § 1500.2036
a) Split Award
b) Multiple Award
c) Term and Condition Contracts
d) Auction
Purchases may be made at auction in accordance with the procedural requirements applicable to the particular auction. Notice and competition is not required and the amount payable shall be the amount bid and accepted plus any required buyer's premium.
e) Federal Requirements
The Procurement Officer receiving federal aid funds, grants or loans or otherwise subject to federal entity requirements may conduct procurements in accordance with federal requirements that are necessary to receive or maintain those federal aid funds, grants or loans or to remain in compliance with federal requirements.
f) Donations