2009 Iowa Code
Title 8 - Transportation
Subtitle 1 - Highways and Waterways
CHAPTER 303 - DEPARTMENT OF CULTURAL AFFAIRS
303.53 - CHANGES AND AMENDMENTS.

        303.53  CHANGES AND AMENDMENTS.
         The land use plan, once established, may be amended, supplemented,
      changed, modified, or repealed.  In case, however, of a protest
      against a change signed by the owners of twenty percent or more
      either of the area included in the proposed change, or of the
      immediately adjacent area and within five hundred feet of the
      boundaries, the amendment shall not become effective except by the
      favorable vote of at least eighty percent of all of the members of
      the board of trustees.  

         83 Acts, ch 108, § 13
         Referred to in § 303.64