(70 ILCS 1830/23.1) (from Ch. 19, par. 523.1)
    Sec. 23.1. All revenue bonds shall be payable solely from the revenues or income to be derived from the terminals, terminal facilities, port facilities, aquariums, museums, planetariums, climatrons and any other building or facility which the District has the power to acquire, construct, reconstruct, extend or improve, or any part thereof, may bear such date or dates and may mature at such time or times not exceeding 40 years from their respective dates, all as may be provided in the ordinance authorizing their issuance. All general obligation bonds and revenue bonds may bear interest at such rate or rates not to exceed that permitted in "An Act to authorize public corporations to issue bonds, other evidences of indebtedness and tax anticipation warrants subject to interest rate limitations set forth therein", approved May 26, 1970, as now or hereafter amended. Such interest may be paid semiannually. All bonds, whether revenue or general obligations, may be in such form, may carry such registration privileges, may be executed in such manner, may be payable at 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 the ordinance authorizing issuance.
    The holder or holders of any bonds or interest coupons appertaining thereto issued by the District may bring a civil suit to compel the performance and observance by the District or any of its officers, agents or employees of any contract or covenant made by the District with the holders of such bonds or interest coupons and to compel the District and any of its officers, agents or employees to perform any duties required to be performed for the benefit of the holders of any such bonds or interest coupons by the provision in the ordinance authorizing their issuance, and to enjoin the District and any of its officers, agents or employees from taking any action in conflict with any such contract or covenant, including the establishment of charges, fees and rates for the use of facilities as provided in this Act.
    Notwithstanding the form and tenor of any bond, whether revenue or general obligation, and in the absence of any express recital on the face thereof that it is nonnegotiable, all such bonds are negotiable instruments. Pending the preparation and execution of any such bonds, temporary bonds may be issued with or without interest coupons as may be provided by ordinance.
(Source: P.A. 82-902.)