70 ILCS 1205/9-2a
Whenever any park district determines to acquire real estate for the purposes of Section 9-2, it may borrow money, and as evidence thereof issue its bonds payable solely from revenue other than the taxes specified in Section 9-2b. These bonds may be issued, as provided in this Section, in such amounts as may be necessary to provide sufficient amounts to pay all the costs of construction or expansion of the airport and landing field, including the engineering, legal, and other expenses, together with interest on the bonds to a date 6 months subsequent to the estimated date of completion and initial funding of required bond reserve funds. The bonds are negotiable instruments and shall be executed by the president and secretary of the district and countersigned by the treasurer of the district.
Whenever any park district determines to establish or expand for said district an airport and landing field for aircraft as provided in Section 9-2 of this Code, and to issue revenue bonds under this Section 9-2a to pay the cost thereof, its board shall adopt an ordinance describing in a general way the contemplated project and refer to plans and specifications therefor. These plans and specifications shall be filed in the office of the secretary of the district and shall be open for inspection by the public.
This ordinance shall set out the estimated cost of the project, determine the period of usefulness thereof, fix the amount of revenue bonds to be issued, the maturities thereof, the interest rate, which shall not exceed the greater of (i) the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, or (ii) 8% per annum payable annually or semi-annually, and all the details in connection with the bonds. The bonds shall mature within the period of usefulness of the project as determined by the board. The ordinance may also contain such covenants and restrictions upon the issuance of additional revenue bonds thereafter as may be deemed necessary or advisable for the assurance of the payment of the bonds thereby authorized. The ordinance shall also pledge the revenue derived from the operation of the airport and landing field, for the purpose of paying maintenance and operation costs, providing an adequate depreciation fund, and paying the principal and interest of the bonds issued hereunder.
With respect to instruments for the payment of money issued under this Section either before, on, or after the effective date of this amendatory Act of 1989, 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.
70 ILCS 1205/9-2a