65 ILCS 5/8-4-25
Subject to the requirements of the Bond Issue Notification Act, any municipality is authorized to issue from time to time full faith and credit general obligation notes in an amount not to exceed 85% of the specific taxes levied for the year during which and for which such notes are issued, provided no notes shall be issued in lieu of tax warrants for any tax at any time there are outstanding tax anticipation warrants against the specific taxes levied for the year. Such notes shall bear interest at a rate not to exceed the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, if issued before January 1, 1972 and not more than the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, if issued after January 1, 1972 and shall mature within two years from date. The first interest payment date on any such notes shall not be earlier than the delinquency date of the first installment of taxes levied to pay interest and principal of such notes. Notes may be issued for taxes levied for the following purposes:
In order to authorize and issue such notes, the corporate authorities shall adopt an ordinance fixing the amount of the notes, the date thereof, the maturity, rate of interest, place of payment and denomination, which shall be in equal multiples of $1,000, and provide for the levy and collection of a direct annual tax upon all the taxable property in the municipality sufficient to pay the principal of and interest on such notes as the same becomes due.
A certified copy of the ordinance authorizing the issuance of the notes shall be filed in the office of the County Clerk of the county in which the municipality is located, or if the municipality lies partly within two or more counties, a certified copy of the ordinance authorizing such notes shall be filed with the County Clerk of each of the respective counties, and it shall be the duty of the County Clerk, or County Clerks, whichever the case may be, to extend the tax therefor in addition to and in excess of all other taxes heretofore or hereafter authorized to be levied by such municipality.
From and after any such notes have been issued and while such notes are outstanding, it shall be the duty of the County Clerk or County Clerks, whichever the case may be, in computing the tax rate for the purpose for which the notes have been issued to reduce the tax rate levied for such purpose by the amount levied to pay the principal of and interest on the notes to maturity, provided the tax rate shall not be reduced beyond the amount necessary to reimburse any money borrowed from the working cash fund, and it shall be the duty of the Clerk of the municipality annually, not less than thirty (30) days prior to the tax extension date, to certify to the County Clerk, or County Clerks, whichever the case may be, the amount of money borrowed from the working cash fund to be reimbursed from the specific tax levy.
No reimbursement shall be made to the working cash fund until there has been accumulated from the tax levy provided for the notes an amount sufficient to pay the principal of and interest on such notes as the same become due.
With respect to instruments for the payment of money issued under this Section either before, on, or after June 6, 1989 (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 this Act that may appear to be or to have been more restrictive than those Acts, (ii) that the provisions of this Section are not a limitation on the supplementary authority granted by the Omnibus Bond Acts, and (iii) that instruments issued under this Section within the supplementary authority granted by the Omnibus Bond Acts are not invalid because of any provision of this Act that may appear to be or to have been more restrictive than those Acts.
65 ILCS 5/8-4-25