Section 265. Changes

1. Such regulations, restrictions and boundaries may
  from time to time be amended. Such amendment  shall  be  effected  by  a
  simple  majority  vote of the town board, except that any such amendment
  shall require the approval of at least three-fourths of the  members  of
  the  town  board in the event such amendment is the subject of a written
  protest, presented to the town board and signed by:
    (a) the owners of twenty percent or more of the area of land  included
  in such proposed change; or
    (b)  the  owners  of  twenty  percent  or  more  of  the  area of land
  immediately adjacent to that land  included  in  such  proposed  change,
  extending one hundred feet therefrom; or
    (c)  the owners of twenty percent or more of the area of land directly
  opposite thereto, extending one hundred feet from the street frontage of
  such opposite land.
    The provisions of the previous section relative to public hearings and
  official notice shall apply equally to all proposed amendments.
    2.  Amendments  made  to  any  zoning  ordinance  (excluding  any  map
  incorporated therein) adopted pursuant to the provisions of this chapter
  shall  be  entered  in the minutes of the town board; such minutes shall
  describe and refer to any map adopted in connection  with  such  change,
  amendment  or  supplement  and  a  copy,  summary  or  abstract  thereof
  (exclusive of any map incorporated therein) shall be published once in a
  newspaper published in the town, if any, or in such newspaper  published
  in  the county in which such town may be located having a circulation in
  such town, as the town  board  may  designate,  and  affidavits  of  the
  publication  thereof  shall be filed with the town clerk. Such ordinance
  shall take effect upon filing in the office of  the  town  clerk.  Every
  town  clerk shall maintain every map adopted in connection with a zoning
  ordinance or amendment.