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.
1124 - Limitations on overtaking on the left.

§ 1124. Limitations  on  overtaking  on  the left. No vehicle shall be
  driven to the left side of the center of the roadway in  overtaking  and
  passing   another  vehicle  proceeding  in  the  same  direction  unless
  authorized by the provisions of this chapter and unless such  left  side
  is  clearly  visible  and  is  free of oncoming traffic for a sufficient
  distance ahead to permit such overtaking and passing  to  be  completely
  made  without  interfering with the operation of any vehicle approaching
  from the opposite direction or any vehicle overtaken. In every event the
  overtaking vehicle must return to an authorized lane of travel  as  soon
  as practicable and in the event the passing movement involves the use of
  a  lane authorized for vehicles approaching from the opposite direction,
  before coming within two hundred feet of any approaching vehicle.