(4) For purposes of this section, “municipality” shall include any county, city, municipal corporation, school district, irrigation district, sewer district, water district, highway district or other special purpose district or political subdivision of the state established by law.
SECTION 3. LIMITATIONS ON COUNTY AND MUNICIPAL INDEBTEDNESS. No county, city, board of education, or school district, or other subdivision of the state, shall incur any indebtedness, or liability, in any manner, or for any purpose, exceeding in that year, the income and revenue provided for it for such year, without the assent of two[-]thirds (2/3) of the qualified electors thereof voting at an election to be held for that purpose, nor unless, before or at the time of incurring such indebtedness, provisions shall be made for the collection of an annual tax sufficient to pay the interest on such indebtedness as it falls due, and also to constitute a sinking fund for the payment of the principal thereof, within thirty (30) years from the time of contracting the same. Any indebtedness or liability incurred contrary to this provision shall be void: Provided, that this section shall not be construed to apply to the ordinary and necessary expenses authorized by the general laws of the state and provided further that any city may own, purchase, construct, extend, or equip, within and without the corporate limits of such city, off street parking facilities, public recreation facilities, and air navigation facilities, and for the purpose of paying the cost thereof may, without regard to any limitation herein imposed, with the assent of two[-]thirds (2/3) of the qualified electors voting at an election to be held for that purpose, issue revenue bonds therefor, the principal and interest of which to be paid solely from revenue derived from rates and charges for the use of, and the service rendered by, such facilities as may be prescribed by law, and provided further, that any city or other political subdivision of the state may own, purchase, construct, extend, or equip, within and without the corporate limits of such city or political subdivision, water system, sewage collection systems, water treatment plants, sewage treatment plants, and may rehabilitate existing electrical generating facilities, and for the purpose of paying the cost thereof, may, without regard to any limitation herein imposed, with the assent of a majority of the qualified electors voting at an election to be held for that purpose, issue revenue bonds therefor, the principal and interest of which to be paid solely from revenue derived from rates and charges for the use of, and the service rendered by such systems, plants and facilities, as may be prescribed by law; and provided further that any port district, for the purpose of carrying into effect all or any of the powers now or hereafter granted to port districts by the laws of this state, may contract indebtedness and issue revenue bonds evidencing such indebtedness, without the necessity of the voters of the port district authorizing the same, such revenue bonds to be payable solely from all or such part of the revenues of the port district derived from any source whatsoever excepting only those revenues derived from ad valorem taxes, as the port commission thereof may determine, and such revenue bonds not to be in any manner or to any extent a general obligation of the port district issuing the same, nor a charge upon the ad valorem tax revenue of such port district.
SECTION 3A. ENVIRONMENTAL POLLUTION CONTROL REVENUE BONDS — ELECTION ON ISSUANCE. Counties of the state may in the manner prescribed by law issue revenue bonds for the purpose of acquiring, constructing, installing and equipping facilities designed for environmental pollution control, including the acquisition of all technological facilities and equipment necessary or convenient for pollution control, to be financed for, or to be sold, leased or otherwise disposed of to, persons, associations, or corporations other than municipal corporations or other political subdivisions; provided, that such revenue bonds are issued with the assent of a majority of the qualified electors of the county voting at an election to be called and held for that purpose; and provided further, that such revenue bonds shall not be secured by the full faith and credit or the taxing power of the state or of any political subdivision thereof. No provision of this constitution, including, but not limited to sections 3 and 4 of article VIII and section 4 of article XII, shall be construed as a limitation upon the authority granted under this section. Nothing herein contained shall authorize any county of the state to operate any industrial or commercial enterprise.
SECTION 3B. PORT DISTRICT FACILITIES AND PROJECTS — REVENUE BOND FINANCING. Port districts may acquire, construct, install, and equip facilities or projects to be financed for, or to be leased, sold or otherwise disposed of to persons, associations or corporations other than municipal corporations and may in the manner prescribed by law issue revenue bonds to finance the costs thereof; provided that any such revenue bonds shall be payable solely from charges, rents or payments derived from the facilities or projects financed thereby and shall not be secured by the full faith and credit or the taxing power of the port district, the state, or any other political subdivision. No provision of this Constitution, including, but not limited to Sections 3 and 4 of Article VIII and Section 4 of Article XII, shall be construed as a limitation upon the authority granted under this section.
SECTION 3C. HOSPITALS AND HEALTH SERVICES AUTHORIZED — ACTIVITIES AND FINANCING. Provided that no ad valorem tax revenues shall be used for activities authorized by this section, public hospitals, ancillary to their operations and in furtherance of health care needs in their service areas, may: (i) incur indebtedness or liability to purchase, contract, lease or construct or otherwise acquire facilities, equipment, technology and real property for health
