55 ILCS 5/6-5002
The resolution authorizing the issuance of such bonds shall specify the total amount of bonds to be issued, the form and denomination of the bonds, the date they are to bear, the place where they are payable, the date or dates of maturity, which shall not be more than 20 years after the date the bonds bear, the rate of interest which shall not exceed the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, and the dates on which interest is payable.
Such resolution shall prescribe all the details of the bonds and shall provide for the levy and collection of a direct annual tax upon all taxable property within the county sufficient to pay the principal thereof at maturity and to pay the interest thereon as it falls due, which tax shall not be subject to any statutory limitations relative to taxes which may be extended for county purposes.
With respect to instruments for the payment of money issued under this Section or its predecessor either before, on, or after the effective date of Public Act 86-4, it is and always has been the intention of the General Assembly (i) that the Omnibus Bond Acts are and always have been supplementary grants of power to issue instruments in accordance with the Omnibus Bond Acts, regardless of any provision of these Sections 6-5001 through 6-5005 or "An Act to authorize the issuance of bonds by a county having more than 500,000 inhabitants for the purchase of voting machines, and to provide for the payment therefor", approved July 20, 1949, that may appear to be or to have been more restrictive than those Acts, (ii) that the provisions of this Section or its predecessor are not a limitation on the supplementary authority granted by the Omnibus Bond Acts, and (iii) that instruments issued under this Section or its predecessor within the supplementary authority granted by the Omnibus Bond Acts are not invalid because of any provision of these Sections 6-5001 through 6-5005 or "An Act to authorize the issuance of bonds by a county having more than 500,000 inhabitants for the purchase of voting machines, and to provide for the payment therefor", approved July 20, 1949, that may appear to be or to have been more restrictive than those Acts.
55 ILCS 5/6-5002