NY Lab L § 273 (2021)
2021 New York Laws LAB - Labor Article 11 - Factories Title 3 - Fire Hazard 273 - Fire-Escapes Erected After October First, Nineteen Hundred and Thirteen, on Buildings Theretofore Erected.

§  273. Fire-escapes erected after October first, nineteen hundred and   thirteen, on buildings theretofore  erected.  All  outside  fire-escapes   erected after October first, nineteen hundred and thirteen, on buildings   theretofore  erected  and serving as required exits shall conform to the   following requirements:1. They shall be built of wrought  iron  or  steel  and  shall  be  so   designed, constructed and erected as to safely sustain on all platforms,   balconies  and  stairways a live load of not less than ninety pounds per   square foot with a factor of safety of four.2. Whenever practicable a continuous  run  or  straight  run  stairway   shall be built.3. All openings leading thereto shall have an unobstructed width of at   least  two  feet  and an unobstructed height of at least six feet.  Such   openings shall extend to the floor level or within six  inches  thereof,   shall  be  not more than seven inches above the floor of the fire-escape   balcony and shall be provided with fire doors, except in buildings  five   stories or under in height complying with the provisions of subdivisions   five and six of section two hundred and seventy-four.4.  All  windows  opening  upon the course of the fire-escape shall be   fireproof windows.5. On every floor above the first there  shall  be  a  balcony  firmly   fastened to the building and embracing one or more easily accessible and   unobstructed openings. The balconies shall have a width of at least four   feet  throughout  their  length  and  shall have a landing not less than   twenty-four inches square at the head of every stairway.  There shall be   a passageway between the stairway opening and the side of  the  building   at  least  eighteen  inches  wide  throughout except where the stairways   reach and leave the balconies at the ends or where double run  stairways   are  used.  The  stairway  openings  of the balconies shall be of a size   sufficient to provide clear headway and shall be  guarded  on  the  long   side by an iron railing not less than three feet in height. Each balcony   shall  be  surrounded  by  an  iron  railing not less than three feet in   height properly braced.6. The balconies  shall  be  connected  by  stairways  not  less  than   twenty-two  inches wide placed at an incline of not more than forty-five   degrees, with steps of not less  than  eight-inch  tread  and  not  over   eight-inch  rise  and  provided with a handrail not less than three feet   above the treads. The treads of such stairways shall be  so  constructed   as  to sustain a live load of four hundred pounds per step with a factor   of safety of four.7. There shall be a similar stairway from the top floor balcony to the   roof, except where the fire-escape  is  erected  on  the  front  of  the   building.8.  A  similar stairway shall also be provided from the lowest balcony   to a safe landing  place  beneath,  which  stairway  shall  remain  down   permanently  or  be  arranged  to  swing  up  and  down automatically by   counter-balancing weights.9.  When  not  erected  on  the  front  of  the  building,  safe   and   unobstructed  egress  shall be provided from the foot of the fire-escape   by means of an open court or courts or a fireproof passageway having  an   unobstructed  width  of  at  least three feet throughout, leading to the   street, or by means of  an  open  area  having  communication  with  the   street.  Such  fireproof  passageway  shall be adequately lighted at all   times and the lights shall be so arranged as to  insure  their  reliable   operation  when  through  accident  or  other  cause the regular factory   lighting is extinguished.