§ 202. Egress from dwellings. 1. Nursing and convalescent homes, homes
for the aged and boarding and nursery schools, two stories in height
erected after July first, nineteen hundred fifty-seven, child caring
institutions, two stories in height erected after July first, nineteen
hundred sixty-two, and all dwellings three or more stories in height
shall have at least two fire-stairs. Except as otherwise specifically
provided in subdivision four, such fire-stairs shall extend from the
entrance story to the roof and be equipped with fireproof self-closing
doors glazed with wire glass and without transoms. No windows shall be
required in such stairs, but any openings in exterior walls, except any
window openings facing a street or yard, shall be equipped with
fireproof frame and sash and glazed with wire glass.

2. Every such fire-stair shall have an entrance on the entrance story
from a street or an entrance at the side or rear of the dwelling from a
yard, court or passageway having continuous, safe and unobstructed
access to a street. Every required stair and stair-landing shall be at
least three feet eight inches in clear width.

3. There shall be horizontal access from every apartment to at least
two fire-stairs, at least one of which shall be within one hundred feet
horizontally in the line of travel from a required means of egress from
such apartment.

4. A dwelling as a rule transiently or temporarily occupied, in which
at least eighty per centum of the living rooms above the second story
open directly upon a public hall without any intervening foyer or
private hall, shall have at least two fire-stairs accessible at each
story from each room through a public hall. Such fire-stairs shall be so
located that at least one fire-stair shall be not more than one hundred
twenty-five feet along the line of travel from the means of egress from
any living room. Every such fire-stair shall have a clear width of at
least three feet eight inches. Two such fire-stairs shall be deemed
adequate for seventy living rooms on any story.

5. Nursing and convalescent homes, homes for the aged, and boarding
and nursery schools, one story in height, erected after July first,
nineteen hundred fifty-seven, and child caring institutions, one story
in height, erected after July first, nineteen hundred sixty-two, shall
have at least two means of egress from the dwelling accessible to every
apartment providing free and unobstructed egress by a door opening to
the outer air.