Section 11-212. Special federal ballots; deadline for receipt, and delivery to polling place

All special federal ballots received by the  board  of
  elections before the close of the polls on election day may be delivered
  to  the  inspectors  of  the  election districts in which the voters are
  registered, in the  manner  prescribed  by  this  chapter  for  absentee
  ballots,  or  retained  by the board of elections and cast and canvassed
  pursuant to section 9-209 of this chapter as the board of elections,  in
  its  discretion,  shall  determine by resolution adopted at least thirty
  days before election day. 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.