Ga. Const. art. IX, § 4, para. 4

As used in this Paragraph, the term “regional facilities” means industrial parks, business parks, conference centers, convention centers, airports, athletic facilities, recreation facilities, jails or correctional facilities, or other similar or related economic development parks, centers, or facilities or any combination thereof. Notwithstanding any other provision of this Constitution, a county or municipality is authorized to enter into contracts with: (1) any county which is contiguous to such county or the county in which such municipality is located; (2) any municipality located in such a contiguous county or the same county; or (3) any combination thereof. Any such contract may be for the purpose of allocating the proceeds of ad valorem taxes assessed and collected on real property located in such county or municipality with such other counties or municipalities with which the assessing county or municipality has entered into agreements for the development of one or more regional facilities and the allocation of other revenues generated from such regional facilities. Any such regional facility may be publicly or privately initiated. The allocation of such tax proceeds and other revenues shall be determined by contract between the affected local governments. Such contract shall provide for the manner of development, operation, and management of the regional facility and the sharing of expenses among the contracting local governments and shall specify the percentage of ad valorem taxes and other revenues to be allocated and the method of allocation to each contracting local government. Unless otherwise provided by law, such a regional facility will qualify for the greatest dollar amount of income tax credits which may be provided for by general law for any of the counties or municipalities which have entered into an agreement for the development of the regional facility, regardless of the county or municipality in which the business is physically located. The authority granted to counties and municipalities under this Paragraph shall be subject to any conditions, limitations, and restrictions which may be imposed by general law.