Section 3-303. Additional village justices in certain villages

At least one
  hundred fifty days prior to any village general election and subject  to
  a  permissive referendum, as provided by article nine of this title, the
  board of trustees of the  following  villages  may  adopt  a  resolution
  determining that such village shall have three village justices with the
  third  village justice to be elected by the electors at the next village
  general election to begin serving a term  of  office  beginning  at  the
  start  of  the  official  year  next  succeeding  such  village  general
  election:
    The village of Spring Valley in Rockland county.