70 ILCS 1832/85
The Board may, after referendum approval, levy a tax for corporate purposes of the district annually at the rate approved by referendum, but which rate shall not exceed .05% of the value of all taxable property within the port district as equalized or assessed by the Department of Revenue.
If the Board desires to levy a tax it shall order that the question be submitted at an election to be held within the district and shall certify the order and the question to the proper election officials, who shall submit the question to the voters at an election under the general election law. The Board shall cause the result of the referendum to be entered upon the records of the port district. If a majority of the vote on the question is in favor of the proposition, the Board may annually thereafter levy a tax for corporate purposes at a rate not to exceed that approved by referendum but in no event to exceed .05% of the value of all taxable property within the district as equalized or assessed by the Department of Revenue.
The question shall be in substantially the following form:
Shall the Mid-America Intermodal Authority Port District levy a tax annually not to exceed (insert rate) % of the value of taxable property as equalized or assessed by the Department of Revenue for corporate purposes. The votes shall be recorded as "Yes" or "No".
70 ILCS 1832/85