2006 New York Code - Time For Instituting Proceedings.

    §  517. Time for instituting proceedings. Proceedings to establish the
  paternity of a child may be  instituted  during  the  pregnancy  of  the
  mother  or  after the birth of the child, but shall not be brought after
  the child reaches the age of twenty-one years, unless paternity has been
  acknowledged by the father in writing or by furnishing support.

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