2006 New York Code - Housekeeping.

 
    §  27-1018  Housekeeping.  (a)  All  areas used by the public shall be
  maintained free from ice, snow, grease,  debris,  equipment,  materials,
  projections,  tools,  or  other  item,  substance, or condition that may
  constitute a slipping, tripping, or other hazard.
    (b) When not being used, materials, equipment, and  tools  that  might
  fall  from levels above areas used by the public shall be kept away from
  edges or openings. When exterior walls are not in place, material  piles
  shall be kept at least ten feet back from the perimeter of the building.
    (c)  Material  may be stored within two feet of the edge of a building
  provided however that such material is stored not more than two  stories
  below  the  stripping  operation on concrete structures or the uppermost
  concrete floor on steel frame structures. Such material shall be secured
  against accidental movement. Storage of material  on  all  other  floors
  shall conform to paragraph (b) of this section and shall be secured when
  not being used.
    (d)  Waste dumpsters, debris boxes and skip boxes shall be secured and
  those containing material or debris shall be covered at the end of  each
  work  day.  Such waste dumpsters, debris, boxes and skip boxes shall not
  be placed at the edge of the building at  any  time  except  when  being
  moved from the floor or building.
    (e) Sufficient containers of metal or other material acceptable to the
  commissioner  shall  be  available  for  the  storage of all garbage and
  debris. The containers shall be  of  three-quarter  cubic  year  minimum
  capacity.