30 ILCS 500/45-20: Recycled supplies.

When a public contract is to be awarded to the lowest responsible bidder or offeror, an otherwise qualified bidder or offeror who will fulfill the contract through the use of products made of recycled supplies shall be given preference over other bidders or offerors unable to do so, provided that the cost included in the bid of supplies is equal or less than other bids or offers, unless the use of the product constitutes an undue practical hardship.

This Section applies to bid opportunities posted to the Illinois Procurement Bulletin on or after January 1, 2016.

Nothing in this Section shall be construed to apply to a construction agency for the purposes of procuring construction and construction-related services.