2016 New York Laws
RRD - Railroad
Article 3 - (Railroad) CONSTRUCTION, OPERATION AND MANAGEMENT
83-B - Trespass upon railroad premises.

 83-b. Trespass upon railroad premises. 1. Any city with a population
  of  one  million or more and the counties of Monroe, Nassau, and Suffolk
  are authorized and empowered to adopt or amend a local law or  ordinance
  designating  any  portion  or  portions  of  property  consisting  of  a
  right-of-way or yard of a  railroad  or  rapid  transit  railroad  as  a
  no-trespass  railroad  zone  and  providing  for the conspicuous posting
  thereof for purposes of establishing  criminal  liability  for  trespass
  upon  such property pursuant to subdivision (g) of section 140.10 of the
  penal law.
2. The provisions of sections eighty-three and eighty-three-a of  this
  article  shall  not be construed to prohibit or limit the prosecution of
  any person for a violation of  the  provisions  of  subdivision  (g)  of
  section 140.10 of the penal law.