2006 New York Code - Tree Planting; Permission Of Commissioner Of Transportation.

 
    §  18-106 Tree planting; permission of commissioner of transportation.
  In performing the duties required by sections 18-104 and 18-105 of  this
  title,  the  commissioner  shall not make openings or excavations in any
  street for the purpose of planting or cultivating trees, without  having
  first   obtained   the   written   approval   of   the  commissioner  of
  transportation nor shall any  tree  be  so  planted  as  to  permanently
  interfere  with the ordinary usage of the street, nor shall the planting
  be performed in any case so as to injure or  impair  any  sewer,  drain,
  water pipe, or other structure erected by legal authority.