Section 12-750 - Same; subdivision regulations affecting property outside the city; joint committee; membership; authority(a) If the governing body of a city proposes to adopt subdivision regulations affecting property lying outside of the city and governed by subdivision regulations of the county, a copy of the city's proposal shall be certified to the board of county commissioners or if at any time subsequent to the adoption of regulations governing the subdivision of land by the city planning commission, the board of county commissioners shall designate an area for such purposes which shall include lands lying within the area governed by subdivision regulations of the city, the board of county commissioners shall certify a copy of such resolution to the governing body of the city and regulations governing the subdivision of land within the area designated by the city shall be adopted and administered in the manner hereinafter provided. Within 60 days after the date of the certification of the resolution by the board of county commissioners or the governing body of the city, there shall be established by joint resolution of the board of commissioners and governing body, a joint committee for subdivision regulation which shall be composed of three members of the county planning commission to be appointed by the chairperson of the county planning commission and three members of the city planning commission to be appointed by the chairperson of the city planning commission and one member to be selected by the other six members. Such joint committee shall have such authority as provided by law for county planning and city planning commissions relating to the adoption and administration of regulations governing the subdivision of land within the area of joint regulation. Regulations adopted by the county or city and in effect at the time of the certification of such resolution by the board of county commissioners or the governing body of the city shall remain in effect until new regulations shall have been adopted by the joint committee or for a period not exceeding six months from and after the date of the certification of such resolution. The provisions of this section shall not apply to any city and county jointly cooperating in the exercise of planning and zoning under the provisions of this act.(b) The provisions of this section shall become effective on and after January 1, 1992.L. 1991, ch. 56, § 10; July 1.