(30 ILCS 565/4) (from Ch. 48, par. 1804)
    Sec. 4. Each contract for the construction, reconstruction, alteration, repair, improvement or maintenance of public works made by a public agency shall contain a provision that steel products used or supplied in the performance of that contract or any subcontract thereto shall be manufactured or produced in the United States.
    The provisions of this Section shall not apply:
    (1) Where the contract involves an expenditure of less than $500.
    (2) Where the executive head of the public agency certifies in writing that (a) the specified products are not manufactured or produced in the United States in sufficient quantities to meet the agency's requirements or cannot be manufactured or produced in the United States within the necessary time in sufficient quantities to meet the agency's requirements, or (b) obtaining the specified products, manufactured or produced in the United States would increase the cost of the contract by more than 10%.
    (3) When its application is not in the public interest.
(Source: P.A. 83-1030.)