(105 ILCS 5/17-3.5)
    Sec. 17-3.5. Maximum-authorized district educational purposes tax rate. If, at any election held prior to March 19, 2004, the voters of a school district having a population of less than 500,000 inhabitants approved the proposition to increase the educational purposes tax rate of the district and the proposition to increase the rate set forth as the existing maximum-authorized educational purposes tax rate of the district the tax rate most recently extended for educational purposes, then, for the purposes of this Code and the Property Tax Code, the maximum-authorized educational purposes tax rate of the district shall be calculated as follows:
        (1) for the first tax year affected by the results of the referendum, the district's tax
    
rates shall be calculated based upon the rates set forth in the proposition; and
        (2) for each tax year thereafter, the district's maximum-authorized educational purposes
    
tax rate approved at the referendum shall be equal to the sum of the district's maximum-authorized educational purposes tax rate immediately preceding the referendum plus the difference between the rates set forth in the proposition submitted to the voters of the district at the referendum.
    Within 10 days after the effective date of this amendatory Act of the 93rd General Assembly, the school board of any school district affected by this subsection (a) may, notwithstanding the requirements of any other law to the contrary, amend its certificate of tax levy for any year for which its equalized assessed valuation has not yet been certified by the county clerk. The amended certificate of tax levy shall be filed with the county clerk within the 10-day period after the effective date of this amendatory Act of the 93rd General Assembly.
(Source: P.A. 93-1059, eff. 12-8-04.)