190.051.  Change in number of board members, when — ballot language. — 1.  Notwithstanding the provisions of sections 190.050 and 190.052 to the contrary, upon a motion by the board of directors in districts where there are six-member boards, and upon approval by the voters in the district, the number of directors may be increased to seven with one board member running district wide, or decreased to five or three board members.  The ballot to be used for the approval of the voters to increase or decrease the number of members on the board of directors of the ambulance district shall be substantially in the following form:

  2.  If a majority of the voters voting on a proposition to increase the number of board members to seven vote in favor of the proposition, then at the next election of board members after the voters vote to increase the number of directors, the voters shall select one person to serve in addition to the existing six directors as the member who shall run district wide.

  3.  If a majority of the voters voting on a proposition to decrease the number of board members vote in favor of the proposition, then the county clerk shall redraw the district into the resulting number of subdistricts with equal population bases and hold elections by subdistricts pursuant to section 190.050.  Thereafter, members of the board shall be elected to serve terms of three years and until their successors are duly elected and qualified.

  4.  Members of the board of directors in office on the date of an election pursuant to this section to increase or decrease the number of members of the board of directors shall serve the term to which they were elected or appointed and until their successors are elected and qualified.