Ill. Admin. Code tit. 44, § 8.2050
b) Development of Specifications
c) Brand Name Specification. Bids for construction projects shall be based on providing all products, subcontractors or suppliers specified in the specifications. When a brand name specification is used, a minimum of three brand names must be specified for each product. Brand name product specifications shall allow that a bidder may propose additional products prior to bid opening. Bidders may propose substitutions of a product, upon review and approval by CDB and the project A/E. The product substitution process may be utilized regardless of whether only brand names are listed. Substitutions shall be accepted before award and are subject to the review of the SPO. Determinations on the acceptance of substitutions shall be included in the recommendation to award file.
1) Brand name specifications may be used in a construction solicitation when:
e) Specifications Prepared by Persons Other Than State Personnel. Specifications may be prepared by persons other than State personnel, including, but not limited to, consultants, architects, engineers, designers or other drafters of specifications for public contracts. CDB shall review and approve such specifications. Vendors preparing specifications must affirm that no conflict of interest exists at time of submittal and review of the specifications by CDB and that it has accepted no gift or consideration intended to influence its judgment on the project. Vendors may be requested to verify conflict of interest status at any time throughout a project. No person or business shall submit specifications to a State agency unless requested to do so by an employee of the State [30 ILCS 500/50-10.5(e)].
f) Prohibited Bidder and Contractors
1) No person or business shall bid or enter into a contract if the person or business:
2) This subsection (f) does not prohibit a person or business from submitting a bid or proposal or entering into a contract if the person or business: