(1) A municipality shall exercise authority under this act for the total area under its jurisdiction. Unincorporated areas adjacent to incorporated municipalities may be included in the area of municipal jurisdiction for the purposes of this act if the governing bodies of the municipality and the county in which the area is located agree on the boundaries of such additional areas, on procedures for joint action in the preparation and adoption of the comprehensive plan, on procedures for the administration of land development regulations or the land development code applicable thereto, and on the manner of representation on any joint body or instrument that may be created under the joint agreement. Such joint agreement shall be formally stated and approved in appropriate official action by the governing bodies involved.

(2) A county shall exercise authority under this act for the total unincorporated area under its jurisdiction or in such unincorporated areas as are not included in any joint agreement with municipalities established under the provisions of subsection (1). In the case of chartered counties, the county may exercise such authority over municipalities or districts within its boundaries as is provided for in its charter.

(3) Combinations of municipalities within a county, or counties, or an incorporated municipality or municipalities and a county or counties, or an incorporated municipality or municipalities and portions of a county or counties may jointly exercise the powers granted under the provisions of this act upon formal adoption of an official agreement by the governing bodies involved pursuant to law. No such official agreement shall be adopted by the governing bodies involved until a public hearing on the subject with public notice has been held by each governing body involved. The general administration of any joint agreement shall be governed by the provisions of s. 163.01 except that when there is conflict with this act the provisions of this act shall govern. History: s. 5, ch. 75-257; s. 4, ch. 85-55; s. 8, ch. 95-310.