(620 ILCS 65/21)
    Sec. 21. Reimbursement for tax base losses.
    (a) Whenever the City acquires parcels of property within any school district or community college district for the O'Hare Modernization Program, the City shall, for the following taxable year and for each of the 5 taxable years thereafter, pay to that district the amount of the total property tax liability of the acquired parcels to the district for the 2002 taxable year, increased or decreased each year by the percentage change of the district's total tax extension for the current taxable year from the total tax extension for the prior taxable year; provided that no annual increase shall exceed the lesser of 5% or the annual increase in the Consumer Price Index. Funds payable by the City under this Section shall be paid exclusively from non-tax revenues generated at airports owned by the City, and shall not exceed the amount of those funds that can be paid for that purpose under 49 U.S.C. 47107(l)(2).
    (b) Notwithstanding any other provision of this Section: (i) no funds shall be payable by the City under this Section with respect to any taxable year succeeding the 2009 taxable year; (ii) in no event shall such funds be payable on or after January 1, 2010; (iii) in no event shall the total funds paid by the City pursuant to this Section to all districts for all taxable years exceed $20,000,000; and (iv) any amounts payable to a district by the City with respect to any parcel of property for any taxable year shall be reduced by the amount of taxes actually paid to the district for that taxable year with respect to that parcel or any leasehold interest therein.
    (c) Whenever the City acquires property that is subject to this Section, the City shall notify the assessor of the county in which the property is located. The assessor or the clerk of that county shall, on an annual basis, notify the affected school district or community college district of all property that has been identified as being subject to this Section, and shall provide the district and the City with such information as may be required in determining the amounts payable by the City under this Section. The City shall make payments as required by this Section no later than 90 days after that information is received and verified by the City.
    (d) As used in this Section, "Consumer Price Index" means the Consumer Price Index for All Urban Consumers for all items published by the United States Department of Labor.
(Source: P.A. 93-450, eff. 8-6-03.)