(1) The board of county commissioners shall require the county planning board and the city-county planning board to recommend boundaries and appropriate regulations for the various zoning districts. The county planning board and the city-county planning board shall make written reports of their recommendations to the board of county commissioners, but such recommendations shall be advisory only.
(2) This section shall apply to either the county planning board or the city-county planning board where only one of these planning boards has been established.