2016 New York Laws
ELN - Election
Article 11 - SPECIAL PRESIDENTIAL AND SPECIAL FEDERAL VOTERS AND SPECIAL BALLOTS
Title 2 - (11-200 - 11-220) SPECIAL FEDERAL VOTERS
11-212 - Special federal ballots; deadline for receipt.

  11-212.  Special federal ballots; deadline for receipt. All special
  federal ballots received by the board of elections before the  close  of
  the  polls  on  election day shall be retained by the board of elections
  and cast and canvassed pursuant to section 9-209 of  this  chapter.  All
  ballots contained in envelopes showing a cancellation mark of the United
  States  postal service or a foreign country's postal service, or showing
  a dated endorsement of receipt by another agency of  the  United  States
  government,  with  a  date which is ascertained to be not later than the
  day before election, shall be cast and counted if received by the  board
  of  elections  not  later than seven days following the day of a primary
  election or thirteen days following the day  of  a  general  or  special
  election except that the special federal ballot of a voter who requested
  such  ballot  by  letter,  rather than application, shall not be counted
  unless a valid application form, signed by such voter,  is  received  by
  the  board  of  elections  with such ballot. All ballots received by the
  board of elections  and  all  federal  write-in  ballots  received  from
  special  federal voters not later than seven days following the day of a
  primary election or thirteen days following the  day  of  a  general  or
  special  election,  shall be retained at the board and shall be cast and
  canvassed in the same manner as other ballots retained by such board.