Section 27-288. Scope

The  provisions  of this article establish building
  access requirements; shall regulate the division of the city of New York
  into fire districts and control the occupancy  groups  and  construction
  classes  permitted  therein;  shall regulate permissible building areas,
  height and projections  beyond  the  street  line  and  shall  establish
  special  flood  hazard areas and a regulatory flood datum in the city of
  New York and regulate permissible occupancies and construction or  other
  improvement below such flood datum within such flood hazard areas.