(a) An authority may issue bonds from time to time at its discretion for any of its corporate purposes including the payment of principal and interest upon any advances for surveys and plans for redevelopment projects. An authority may also issue refunding bonds for the purpose of paying or retiring or in exchange for bonds previously issued by it. An authority may issue such types of bonds as it may determine, including (without limiting the generality of the foregoing) bonds on which the principal and interest are payable:
(1) Exclusively from the income, proceeds and revenues of the redevelopment project financed with the proceeds of such bonds; or
(2) Exclusively from the income, proceeds and revenues of any of its redevelopment projects whether or not they are financed in whole or in part with the proceeds of such bonds.
Any such bonds may be additionally secured by a pledge of any loan, grant or contributions, or parts thereof, from the federal government or other source, or a mortgage on any redevelopment project or projects of the authority.
(b) Neither the commissioners of an authority nor any person executing the bonds shall be liable personally on the bonds by reason of the issuance thereof. The bonds and other obligations of the authority (and such bonds and obligations shall so state on their face) shall not be a debt of the municipality, the county or the State, nor in any event shall such bonds or obligations be payable out of any funds or properties other than those of such authority acquired for the purposes of this chapter. The bonds shall not constitute an indebtedness within the meaning of any constitutional or statutory debt limitation or restriction. Bonds of an authority are declared to be issued for an essential public and governmental purpose and to be public instrumentalities and, together with interest thereon and income therefrom, shall be exempt from all taxes.
(c) Bonds of an authority shall be authorized by its resolution and may be issued in 1 or more series and shall bear such date or dates, be payable upon demand or mature at such time or times, bear interest at such rate or rates, not exceeding 6% per annum, be in such denomination or denominations, be in such form either coupon or registered, carry such conversion or registration privileges, have such rank or priority, be executed in such manner, be payable in such medium of payment, at such place or places and be subject to such terms of redemption (with or without premium) as such resolution, its trust indenture or mortgage may provide.
(d) The bonds shall be sold at not less than par at public sale held after notice published once at least 10 days prior to such sale in a legal newspaper having a general circulation in the area of operation and in such other medium of publication as the authority may determine. Such bonds may be sold to the federal government at private sale at not less than par, and, in the event less than all of the bonds authorized in connection with any project or projects are sold to the federal government, the balance of such bonds may be sold at private sale at not less than par at an interest cost to the authority of not to exceed the interest cost to the authority of the portion of the bonds sold to the federal government.
(e) In case any of the commissioners or officers of the authority whose signatures appear on any bonds or coupons shall cease to be such commissioners or officers before the delivery of such bonds, such signatures shall, nevertheless, be valid and sufficient for all purposes, the same as if such commissioners or officers had remained in office until such delivery. Any provision of any law to the contrary notwithstanding, any bonds issued pursuant to this chapter shall be fully negotiable.
(f) In any suit, action or proceedings involving the validity or enforceability of any bond of an authority or the security therefor, any such bond reciting in substance that it has been issued by the authority to aid in financing a redevelopment project, as defined in § 4501 of this title, shall be conclusively deemed to have been issued for such purpose and such project shall be conclusively deemed to have been planned, located and carried out in accordance with this chapter.