192 - Cellar entrance.

§  192.  Cellar  entrance.  a. If there is a cellar, there shall be an  independent entrance thereto from outside the dwelling  by  means  of  a  metal  fire  ladder  or  fireproof  stair  leading  to an opening in the  outside cellar wall at least two feet six inches in width and  six  feet  in  height.  Such  entrance  to  the cellar may be through an areaway or  through a fireproof passageway  leading  directly  to  the  street.  The  entrance  to  the cellar may be closed off with a grating or doors which  shall not be locked or bolted unless they can  be  readily  unbolted  or  unlocked  from  the  inside  without  a  key  and  shall be arranged and  constructed so as to be readily opened at all times.    b. In lieu of the requirements set  forth  in  subdivision  a  hereof,  buildings existing November first, nineteen hundred forty-nine in cities  having  a  population  between five hundred thousand and one million may  comply with the following:    1. shall have an unobstructed entrance through a yard or court from  a  street:    (a)  directly  to exterior dwelling entrance with interior entrance to  basement or cellar direct from said entrance, or from  a  fire  retarded  public hall or stair landing, and    (b)  to  one  or  more  cellar or basement walls containing accessible  windows.    2. The stairway leading to cellar or basement shall be  enclosed  with  fire  retarded partitions or equal construction and shall have a minimum  fire rating of one hour. Said  cellar  or  basement  entrance  shall  be  equipped with a one hour self-closing fire door assembly.