30 ILCS 352/15
The clerk or secretary of the governmental unit shall publish notice of the hearing at least once in a newspaper of general circulation in the governmental unit not less than 7 nor more than 30 days before the date of the hearing. The notice shall also be given by posting at least 48 hours before the hearing a copy of the notice at the principal office of the governing body or, if a principal office does not exist, then at the building in which the hearing is to be held. The notice, which shall appear above the name of the clerk or the secretary, shall be in substantially the following form:
The ...... (governmental entity) will hold a public hearing on ... (date) at ... (time). The hearing will be held at .......... (location). The purpose of the hearing will be to receive public comments on the proposal to sell bonds in the amount of $.... (amount) for the purpose of ......... (state purpose).
(Name of clerk or secretary of governmental unit) ...........
Any notice that excludes that information shall be deemed invalid. Governmental units issuing non-referendum general obligation bonds or limited bonds subject to backdoor referendum under applicable law may publish one notice that includes both the information required by this Section and by the backdoor referendum provision.
30 ILCS 352/15