Section 177-B. Powers and duties of deputy fire district treasurers

The
  board of fire commissioners of any fire district may  appoint  a  deputy
  fire  district  treasurer  to  hold office until the thirty-first day of
  December  next  succeeding  his  appointment.  During  the  absence   or
  inability  to act of the fire district treasurer, or while the office of
  fire district treasurer is vacant, the deputy  fire  district  treasurer
  shall be vested with all of the powers and may perform all of the duties
  of  the  fire  district  treasurer  under this chapter or any other law,
  including the provisions of subdivision  four  of  section  one  hundred
  seventy-six  of  this  chapter  relating  to the giving and filing of an
  official undertaking.  The fire district treasurer shall not  be  liable
  for the acts of a deputy fire district treasurer.