55 ILCS 5/5-2004
In the event an excess tax has been voted as provided by Section 5-2002 and the order of the county board shall not have limited the time such excess will be required to be levied, the county board may thereafter levy such excess tax until such authority is revoked in manner hereinafter provided. However, no tax so voted for the payment of interest or principal or both of any bonds shall be discontinued by virtue of any of the provisions of this Division. The authority to levy such excess tax (except taxes to pay bonds) may be discontinued in the following manner: The county board may, by an order entered of record, and shall, by an order entered of record whenever 500 legal voters of the County present a petition to it asking that said excess tax be discontinued, provide for the submission of the question of discontinuing the additional tax at any regular election held in such county, after the adoption of the resolution. The board shall certify the resolution and the question to the proper election officials, who shall submit the question at a referendum in accordance with the general election law. The question shall be in substantially the following form: "For discontinuing additional tax in excess of constitutional limit of 75 per $100 valuation" and "Against discontinuing additional tax in excess of constitutional limit of 75 per $100 valuation." If the vote on the proposition receives a majority of all voters voting on the referendum such additional tax shall not be levied thereafter.
55 ILCS 5/5-2004