Section 27-996.2. Firemen service operation in existing elevators

(a)
  Notwithstanding the retroactive provisions of  section  27-994  of  this
  article,  where  required by reference standard RS 18-1, firemen service
  operation shall be installed in all existing elevators  serving  any  of
  the following:
    (1)  High  rise buildings or building sections classified in occupancy
  group C.
    (2) All buildings or building sections classified in  occupancy  group
  F, G, H or J-1 (except for "residential hotels," as such term is defined
  by the commissioner pursuant to rules and regulations).
    (b)  All work necessary to meet the requirements of this section shall
  be completed on or before April first, nineteen hundred eighty-seven.