2018 New York Laws
TWN - Town
Article 6 - Town Elections
87 - Increase or Decrease of Number of Councilmen.

§  87.  Increase  or  decrease  of number of councilmen. 1. Whenever a
  proposition shall have been adopted in a town of the first  class  which
  shall  not  have  established the ward system, to increase the number of
  councilmen from four to six, party nominations for town  councilmen  may
  be  made  and designating petitions filed and four town councilmen shall
  be elected at the first biennial town election held at least one hundred
  fifty days thereafter, three for a term of four years each and one for a
  term of two years and thereafter at each biennial town election in  such
  town  there  shall be elected three town councilmen for the term of four
  years each, in the same manner as other elective town officers  in  such
  town.  The  term  of  office  of each such councilman shall begin on the
  first day of January next  succeeding  the  election  at  which  he  was
  elected.
2.  Whenever  a  proposition  shall have been adopted in a town of the
  first class which  shall  not  have  established  the  ward  system,  to
  increase  the  number  of councilmen from two to four, party nominations
  for town councilmen may be made  and  designating  petitions  filed  and
  three  town  councilmen  shall  be  elected  at  the first biennial town
  election held at least one hundred fifty days thereafter, two for  terms
  of  four  years  each and one for a term of two years, and thereafter at
  each biennial town election in such town, there  shall  be  elected  two
  town  councilmen  for  terms  of  four years each, in the same manner as
  other elective town officers in such town. The term of  office  of  each
  such  town  councilman  shall  begin  on  the  first day of January next
  succeeding the election at which he was elected.
3. Whenever a proposition shall have been adopted in  a  town  of  the
  first class to reduce the number of councilmen from four to two, no town
  councilmen  shall be elected at the first biennial town election held at
  least one hundred fifty days after the  adoption  of  such  proposition.
  Party  nominations  for  town  councilmen  may  be  made and designating
  petitions filed and two town councilmen shall be elected at the biennial
  town election next succeeding the biennial town  election  at  which  no
  town  councilmen  are elected, one for a term of two years and one for a
  term of four years and thereafter at each biennial town election in such
  town there shall be elected one town  councilman  for  a  term  of  four
  years,  in the same manner as other elective town officers in such town.
  The term of office of each such councilman shall begin on the first  day
  of January next succeeding the election at which he was elected.