Section 27-259. Classification

Buildings, building sections and spaces shall
  be  classified  in  the  educational occupancy group when persons occupy
  them for instruction or other educational purposes except  those  spaces
  occupied  as  a  place  of assembly. These spaces shall be classified in
  occupancy group F--assembly, under the provisions of  article  eight  of
  this  subchapter.  Such buildings, building sections and spaces occupied
  for instruction and used exclusively by adults may be classified, by the
  commissioner in occupancy group E-business and  if  so  classified  such
  buildings,   building   sections   and  spaces  shall  comply  with  the
  requirements for such classification.