55 ILCS 5/5-1026
Within the rate limitations set out in Section 5-1024 and subject to the referendum provisions of this Section, a county of less than 500,000 inhabitants may accumulate a surplus of general corporate taxes for building purposes which when added to the total indebtedness of the county does not exceed 5% of the equalized assessed valuation of all taxable property in the county.
The county board of any county of less than 500,000 inhabitants, by resolution, may provide for submission to the electors of a proposition to accumulate a surplus from the tax levy for general corporate purposes for a specified building project to be undertaken by the county when such accumulation is sufficient to pay for the project. The board shall certify the resolution and the proposition to the proper election officials who shall submit the proposition at an election in accordance with the general election law. The proposition shall be in substantially the following form:
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Shall the county of .... accumulate general corporate YES funds for the purpose of ----------------------------------------------------- building .... (here state NO building purpose)?
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If a majority of the electors voting on the proposition vote in favor of it, the county may use a portion of the funds levied for general corporate purposes, within the tax rate and to the extent allowed by Section 5-1024, for the purpose of accumulating funds for the building project.
No funds accumulated pursuant to this Section shall be used for any purpose other than the specified building purpose stated in the proposition which was approved by a referendum, unless a proposition to use such funds, or a specified dollar amount thereof, for such other purpose is submitted to the electors of the county at a subsequent referendum. Such referendum shall be governed by the same statutory provisions as are provided for the submission of the proposition to accumulate funds. The proposition shall be in substantially the following form:
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Shall the funds (or $ .... of the funds) accumulated by ....... county for the YES purpose of building ........ ----------------------------------------------------- (here state original purpose) NO be used instead for .... (here state proposed use)?
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If a majority of the electors voting on the proposition vote in favor of it, the county may use such accumulated funds, or the amount thereof specified in the proposition, for the new purpose stated in the proposition.
55 ILCS 5/5-1026