(65 ILCS 5/10-4-5) (from Ch. 24, par. 10-4-5)
    Sec. 10-4-5. The corporate authorities of a municipality shall not pass any ordinance requiring a municipal employee who is under the age of 56 to retire.
    No home rule unit, as defined in Article VII of the Illinois Constitution, shall have the power to change, alter or amend in any way the provisions of this Section, and it is declared to be the law in this State, pursuant to paragraphs (h) and (i) of Section 6 of Article VII of the Constitution, that the establishment of a mandatory retirement age below the age of 56 for employees of a municipality is an exercise of exclusive State power which may not be exercised concurrently by a home rule unit.
(Source: P.A. 82-536.)