Section 27-367. Exit reduction

When  a floor area has access to areas of
  refuge that comply with the requirements of section  27-372  of  article
  five  of  this subchapter, the number of persons for whom vertical exits
  are to be provided may be reduced to fifty per cent of the occupant load
  of the floor area when one area  of  refuge  is  provided,  and  may  be
  reduced  to  thirty-three  and one-third per cent of the floor area when
  two areas of refuge are provided. This section shall not  be  applicable
  to  any  new  or  altered  place  of assembly, except for such places of
  assembly in fully sprinklered office buildings which  occupy  less  than
  twenty percent of the floor area occupied by the principal use.