65 ILCS 5/11-121-4
In order to defray the cost of such subways, or such portion of the cost as may not be raised by special assessment, the municipality may borrow money and issue its bonds or other obligations therefor. Also it may use the available funds belonging to the municipality, including the special funds accumulated from money received by the municipality from street railroad companies and from the operation of local transportation facilities within such municipality, including but not limited to the operation of all subways owned by such municipality, and accretions of interest thereon and principal thereof.
Furthermore, the municipality may borrow money for the purpose of paying the cost of constructing such subways and of extending or improving such subways and of any property and equipment useful therefor. To evidence the obligation of the municipality to repay any money borrowed as aforesaid, the municipality may, pursuant to ordinance adopted by the corporate authorities, from time to time, issue and dispose of its interest bearing revenue bonds or certificates and may also, from time to time, issue and dispose of its interest bearing revenue bonds or certificates to refund any revenue bonds or certificates at maturity or pursuant to redemption provisions or at any time before maturity with the consent of the holders thereof. All such revenue bonds and certificates shall be payable solely from the revenues or income to be derived by the municipality from the operation of local transportation facilities within such municipality, including but not limited to the operation of all subways owned by such municipality, it being intended that the revenues or income from any or all of such local transportation operations may be pledged for the payment of any such revenue bonds and certificates.
The money to be received by such municipality as reimbursement for the initial depreciated cost of furnishing and installing transportation equipment in such subways as defined and required to be paid by the grantee in any ordinance granting the right to operate transportation facilities in such municipality may also be pledged for the payment of any such revenue bonds or certificates and where the amount of such payments to be paid monthly has been agreed upon by such municipality and such grantee prior to the issuance of such bonds or certificates, the amount of such monthly payments so pledged shall not be reduced until all such bonds or certificates shall have been paid.
These bonds and certificates may bear such date or dates, may mature at such time or times not exceeding 40 years from their respective dates, and bear interest at such rate or rates, not exceeding the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, payable semiannually, may be in such form, and carry such registration privileges, may be executed in such manner, may be payable in such place or places, may be made subject to redemption in such manner and upon such terms with or without premium as is stated on the face thereof, may be authenticated in such manner and may contain such terms and covenants all as may be provided in such ordinance. Notwithstanding the form or tenor thereof and in the absence of an express recital on the face thereof that it is non-negotiable, all such revenue bonds and certificates shall be negotiable instruments. Pending the preparation and execution of any such revenue bonds or certificates, temporary bonds or certificates may be issued with or without interest coupons as may be provided by ordinance.
These revenue bonds or certificates may be issued without submission thereof to the electors of the municipality for approval.
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.
The amendatory Acts of 1971, 1972 and 1973 are not a limit upon any municipality which is a home rule unit.
65 ILCS 5/11-121-4