65 ILCS 5/9-1-6
Before the money so remaining undistributed or unclaimed and in the possession of a municipality is set aside and transferred into the unclaimed rebate fund, the board of local improvements, or the committee on local improvements, as the case may be, of the municipality shall have a notice published at least once a week for 8 successive weeks in a newspaper published in the municipality, or, if no newspaper is published therein, then in a newspaper with a general circulation within the municipality. In municipalities with less than 500 population in which no newspaper is published, publication may be made by posting a notice in 3 prominent places within the municipality.
The notice shall describe in a general manner the improvement in which there is an undistributed or unclaimed rebate or refund, giving the location of the improvement and the warrant number, and shall give notice that the municipality, by ordinance after the expiration of 60 days from the date of the first publication of this notice, will set aside and transfer all money which has remained for a period of 4 years, or more, undistributed or unclaimed as a rebate or refund, into the unclaimed rebate fund, and shall state that unless the money is claimed by the person entitled thereto within the 60 day period, and the passage of an ordinance by the municipality, all interest therein and all right and title thereto shall be forfeited and barred.
A certificate of the publication of this notice, with a copy thereof, accompanied by the affidavit of the publisher that the publication has been made and setting forth the date of the first and last publication thereof shall be filed in the office of the board of local improvements, or the committee on local improvements, as the case may be. The board or committee thereupon shall certify the fact of the publication to the corporate authorities of the municipality and shall therewith recommend the passage of an ordinance making transfer of the specified money into the unclaimed rebate fund.
65 ILCS 5/9-1-6