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30 ILCS 500/45-105

    (30 ILCS 500/45-105)
    Sec. 45-105. Bid preference for Illinois businesses.
    (a) For the purposes of this Section:
    "Illinois business" means a contractor that: (i) is headquartered in Illinois and providing, at the time that an invitation for a bid or notice of contract opportunity is first advertised, construction or construction-related professional services for Illinois-based projects; (ii) conducts meaningful day-to-day business operations at a facility in Illinois that is the place of employment for the majority of its regular, full-time workforce; (iii) holds all appropriate State licenses; and (iv) is subject to applicable State taxes. "Illinois business" does not include any subcontractors.
    "Illinois-based project" means an individual project of construction and other construction-related services for a construction agency that will result in the conduct of business within the State or the employment of individuals within the State.
    (b) It is hereby declared to be the public policy of the State of Illinois to promote the economy of Illinois through the use of Illinois businesses for all State construction contracts.
    (c) Construction agencies procuring construction and construction-related professional services shall make reasonable efforts to contract with Illinois businesses.
    (d) Beginning in 2022, each construction agency shall submit a report to the Governor and the General Assembly by September 1 of each year that identifies the Illinois businesses procured by the construction agency, the primary location of the construction project, the percentage of the construction agency's utilization of Illinois businesses on the project as a whole, and the actions that the construction agency has undertaken to increase the use of Illinois businesses.
    (e) In procuring construction and construction-related professional services for projects with a total construction cost of more than $100,000, construction agencies shall provide a bid preference to a responsible bidder that is an Illinois business as defined in this Section. The construction agency shall allocate to any responsible bidder that is an Illinois business a bid preference of 4% of the contract base bid.
    (f) This Section does not apply to any contract for any project for which federal funds are available for expenditure when its provisions may be in conflict with federal law or federal regulation.
(Source: P.A. 102-721, eff. 1-1-23.)