SECTION 1 SPECIAL REVENUE FINANCING. The legislature may enact laws authorizing the state, counties, cities, towns, port districts, or public corporations established thereby to issue nonrecourse revenue bonds or other nonrecourse revenue obligations and to apply the proceeds thereof in the manner and for the purposes heretofore or hereafter authorized by law, subject to the following limitations:

(a) Nonrecourse revenue bonds and other nonrecourse revenue obligations issued pursuant to this section shall be payable only from money or other property received as a result of projects financed by the nonrecourse revenue bonds or other nonrecourse revenue obligations and from money and other property received from private sources.

(b) Nonrecourse revenue bonds and other nonrecourse revenue obligations issued pursuant to this section shall not be payable from or secured by any tax funds or governmental revenue or by all or part of the faith and credit of the state or any unit of local government.

(c) Nonrecourse revenue bonds or other nonrecourse revenue obligations issued pursuant to this section may be issued only if the issuer certifies that it reasonably believes that the interest paid on the bonds or obligations will be exempt from income taxation by the federal government.

(d) Nonrecourse revenue bonds or other nonrecourse revenue obligations may only be used to finance industrial development projects as defined in legislation.

(e) The state, counties, cities, towns, port districts, or public corporations established thereby, shall never exercise their respective attributes of sovereignty, including but not limited to, the power to tax, the power of eminent domain, and the police power on behalf of any industrial development project authorized pursuant to this section.

After the initial adoption of a law by the legislature authorizing the issuance of nonrecourse revenue bonds or other nonrecourse revenue obligations, no amendment to such act which expands the definition of industrial development project shall be valid unless the amendment is enacted by a favorable vote of three-fifths of the members elected to each house of the legislature and is subject to referendum petition.

Sections 5 and 7 of Article VIII and section 9 of Article XII shall not be construed as a limitation upon the authority granted by this section. The proceeds of revenue bonds and other revenue obligations issued pursuant to this section for the purpose of financing privately owned property or loans to private persons or corporations shall be subject to audit by the state but shall not otherwise be deemed to be public money or public property for purposes of this Constitution. This section is supplemental to and shall not be construed as a repeal of or limitation on any other authority lawfully exercisable under the Constitution and laws of this state, including, among others, any existing authority to issue revenue bonds. [AMENDMENT 73, 1981 Substitute House Joint Resolution No. 7, p 1794. Approved November 3, 1981.]