2010 New York Code
VAT - Vehicle & Traffic
Title 7 - RULES OF THE ROAD
Article 25 - (1120 - 1131) DRIVING ON RIGHT SIDE OF ROADWAY, OVERTAKING AND PASSING, ETC.
1125 - Further limitations on driving to left of center of roadway.

§ 1125. Further  limitations  on driving to left of center of roadway.
  (a) No vehicle shall at any time be driven  to  the  left  side  of  the
  roadway under the following conditions:
    1.  When  approaching  the  crest  of  a  grade or upon a curve in the
  highway where the driver's view is obstructed within such distance as to
  create a hazard in the event another vehicle  might  approach  from  the
  opposite direction;
    2.  When  approaching  within  one  hundred  feet of or traversing any
  railroad grade crossing;
    3. When the view is obstructed upon  approaching  within  one  hundred
  feet of any bridge, viaduct, or tunnel.
    (b)  The  foregoing limitations shall not apply upon a one-way roadway
  nor to a vehicle in any lane which is at the time allocated  exclusively
  to  traffic  moving  in  the  direction the vehicle is proceeding and is
  marked to give notice of such allocation.