2006 New York Code - Outrigger Scaffolds.

 
    §  27-1044  Outrigger scaffolds. Outrigger scaffolds shall not be used
  for loading in excess of fifty psf (medium duty).
    (a) Outrigger beams. Outrigger beams shall not extend  more  than  six
  feet  beyond  the  face  of  the  building. The inboard end of outrigger
  beams, measured from the fulcrum point to the extreme point of  support,
  shall be at least one and one-half times the outboard end in length. The
  fulcrum  point  of  the beam shall rest on a secure bearing at least six
  inches in each horizontal dimension. The beam shall be  secured  against
  movement  and  shall  be securely braced against tipping at both fulcrum
  point and inboard end. Outriggers shall not be less than three inches by
  ten inches set on edge, plumb, and spaced not  to  exceed  six  feet  on
  centers for light and medium duty scaffolds.
    (b)  Inboard  supports.  The  inboard ends of outrigger beams shall be
  securely fixed to resist all vertical, horizontal, and torsional forces.
    (c) Platform. The platform shall be constructed of at least  two  inch
  by nine inch planks, securely fastened to the outriggers, and laid tight
  to within three inch of the face of the building.
    (d)  Guard  rail  and  toeboard.  The  railing  posts for the required
  standard guard rail  and  toeboard  shall  be  securely  braced  to  the
  outriggers.
    (e)  Superstructures. Supports for superstructures placed on outrigger
  scaffolds shall be set directly over the outrigger beams  and  shall  be
  secured  in  place. Such structures shall not exceed six feet in height.
  Horses shall not be used as supports for such superstructures.