Section 3-102. Flags and decorations; city hall park

All authority to
  display flags or other decorations on, in or about the public  buildings
  within  the  city  hall  park,  is vested in the mayor, unless otherwise
  ordered by the council.
    a. A Prisoner of War/Missing in Action POW/(MIA) flag shall  be  flown
  over  City  Hall every day the American flag is flown until such time as
  all persons listed as missing in action, from any branch of  the  United
  States Armed Forces, and all persons from any branch of our armed forces
  who  are  prisoners  of  war,  are  accounted  for  by the United States
  Government.