Ala. Code § 22-21-141
The authority is empowered, at any time and from time to time, to sell and issue its revenue bonds for the purpose of providing funds to acquire, construct, improve, enlarge, complete and equip one or more projects and for payment of obligations incurred for any such purpose. The principal of, and interest on, any such bonds shall be payable solely out of the revenues derived by the authority from any one or more of its projects, all as shall be provided by the resolution of the board or the indenture whereunder such bonds are authorized to be issued. Any bonds of the authority may be delivered by it at any time and from time to time, shall be in such form and denominations and of such tenor and maturities, shall bear such rate or rates of interest (without regard to any usury or other laws regulating or limiting interest rates, including without limitation, the provisions of Section 8-8-1, as amended, all of which shall be inapplicable to any bonds or other obligations of the authority), shall be payable and evidenced in such manner, may contain provisions for redemption prior to maturity and may contain other provisions not inconsistent with this article, all as may be provided by the resolution of the board or the indenture whereunder such bonds are authorized to be issued; provided, that no bond of the authority shall have a specified maturity date later than 35 years after its date. Each bond of the authority having a specified maturity date more than 10 years after its date shall be made subject to redemption at the option of the authority at the end of the tenth year after its date, and on any interest payment date thereafter, under such terms and conditions as may be provided in the resolution or indenture under which such bond is authorized to be issued. Bonds of the authority may be sold at either public or private sale in such manner and at such time or times as may be determined by the board to be most advantageous to the authority. Bonds issued by the authority shall not be general obligations of the authority, but shall be payable solely out of the revenues derived from the project or projects specified in the resolution of the board or the indenture under which such bonds are authorized to be issued.
Ala. Code § 22-21-141 (1975)