(B) Nothing in this Constitution may be construed to prohibit the State or any of its counties, incorporated municipalities, or other political subdivisions from agreeing to share the lawful cost, responsibility, and administration of functions with any one or more governments, whether within or without this State.
(C) The prohibitions against dual officeholding contained in Article VI of this Constitution do not apply to any elected or appointed official or employee who serves on a regional council of government created under the authority of this section.
(D) Counties may jointly develop an industrial or business park with other counties within the geographical boundaries of one or more of the member counties. The area comprising the parks and all property having a situs therein is exempt from all ad valorem taxation. The owners or lessees of any property situated in the park shall pay an amount equivalent to the property taxes or other in lieu of payments that would have been due and payable except for the exemption herein provided. The participating counties shall reduce the agreement to develop and share expenses and revenues of the park to a written instrument which is binding on all participating counties. Included within expenses are the costs to provide public services such as sewage, water, fire, and police protection. Notwithstanding the above provisions of this subsection, before a group of member counties may establish an industrial or business park as authorized herein, the General Assembly must first provide by law for the manner in which the value of the property in the park will be considered for purposes of bonded indebtedness of political subdivisions and school districts and for purposes of computing the index of taxpaying ability pursuant to any provision of law which measures the relative fiscal capacity of a school district to support its schools based on the assessed valuation of taxable property in the district as compared to the assessed valuation of the taxable property in all school districts of this State.
