70 ILCS 5/14.5
Referendum if bonds exceed 3/4 of one per cent of assessed value. In case any such ordinance provides for the issuance of bonds in an amount which, together with the aggregate of all tax secured bonds theretofore issued under this Section at any time and then outstanding, exceeds 3/4% of the aggregate valuation of all taxable property within the Authority, as equalized or assessed by the Department of Revenue, then such ordinance shall not take effect, nor shall any bonds be issued thereunder, until the question whether the bonds shall be issued is submitted to the legal voters of the Authority and approved by a majority of those voting upon the question. The question may be submitted at any election after the adoption of such ordinance. The Board shall certify the question and the ordinance to the proper election officials, who shall submit the question to the voters at an election in accordance with the general election law. The question shall be in substantially the following form:
------------------------------------------------------------------------ Shall the.... Airport Authority be authorized to issue general YES obligation bonds in the amount of ------------------------------- $ (fill in amount) for the purpose of NO (state purpose)? ------------------------------------------------------------------------
If a majority of the legal voters of the Authority voting upon such proposition vote in favor thereof, the ordinance providing for the issuance of such bonds shall be in full force and effect and such bonds may be issued as provided in this Section. The principal aggregate amount of any bonds issued under such ordinance shall not exceed, together with bonds theretofore issued under this Section and then outstanding, and other outstanding indebtedness of the Authority, 2% of the aggregate valuation of all taxable property within the Authority, as equalized or assessed by the Department of Revenue.
70 ILCS 5/14.5