ยง 1161. U turns in certain areas prohibited. a. No motor vehicle shall
  make a U turn upon any curve, or upon the approach to, or near the crest
  of a grade, where such motor vehicle cannot be seen by the driver of any
  other  motor  vehicle  approaching  from  either  direction  within five
  hundred feet.
b. No motor vehicle shall make a U turn within a school zone. For  the
  purposes  of  this  subdivision,  the  term "school zone" shall mean the
  distance along a highway passing a school building, entrance or exit  of
  a school abutting on the highway for which a school sign (S1-1) has been
  posted  pursuant  to  this  chapter and in compliance with the manual on
  uniform traffic control devices maintained pursuant to  section  sixteen
  hundred eighty of this chapter.
c.  No  altered  motor  vehicle  commonly  referred  to  as a "stretch
  limousine"  having  a  seating  capacity  of  nine  or  more  passengers
  including  the  driver  shall  make  a U-turn upon any public highway or
  private  road  open  to  public  motor  vehicle  traffic.  Every  person
  convicted  of  a  violation  of  this  subdivision  shall:  for  a first
  conviction thereof, be punished by a fine of not less than  two  hundred
  fifty  dollars nor more than four hundred dollars or by imprisonment for
  not more than fifteen days or by both such fine and imprisonment; for  a
  conviction  of  a  second  or  subsequent  violation, both of which were
  committed within a period of  eighteen  months,  such  person  shall  be
  punished  by  a  fine of not less than six hundred dollars nor more than
  seven hundred fifty  dollars  or  by  imprisonment  for  not  more  than
  forty-five  days  or  by both such fine and imprisonment. A violation of
  this subdivision wherein the violator is operating  such  altered  motor
  vehicle  and  such  altered  motor  vehicle  is  carrying  at  least one
  passenger other than the driver shall be punishable by  a  fine  of  not
  less than seven hundred fifty dollars nor more than one thousand dollars
  or  by imprisonment for not more than one hundred eighty days or by both
  such fine and imprisonment.
Structure New York Laws
Article 28 - Turning and Starting and Signals on Stopping and Turning
1160 - Required Position and Method of Turning at Intersections.
1161 - U Turns in Certain Areas Prohibited.
1162 - Starting Parked Vehicle.
1163 - Turning Movements and Required Signals.
1164 - Signals by Hand and Arm or Signal Lamps.