2006 New York Code - Application.

 
    §  8-103.  Application.    On  or before April first, nineteen hundred
  eighty, the commissioner shall promulgate, and thereafter may amend from
  time to time,  standards  relating  to  the  lighting  of  all  existing
  buildings,  or classes of such buildings, for purposes of minimizing the
  consumption of energy and providing for the efficient utilization of the
  energy expended for lighting in the use and occupancy of such buildings.
  Such standards shall be cost effective and shall not impair  the  health
  and  safety  of  the  occupants  of the property. The standards shall be
  deemed cost effective if the cost of implementing them would be equal to
  or less than the present value of energy and  maintenance  savings  that
  would  be  expected  over a seven-year period in a building to which the
  standards are applicable.