2015 New York Laws
AGM - Agriculture & Markets
Article 25-B - (Agriculture & Markets) ABANDONED ANIMALS
331 - Abandonment of certain animals.

 331. Abandonment  of  certain  animals.  An  animal  is deemed to be
  abandoned when it is placed in the custody of a veterinarian, veterinary
  hospital, boarding kennel owner or operator, stable owner  or  operator,
  or any other person for treatment, board, or care and:
1.  Having  been placed in such custody for a specified period of time
  the animal is not removed at the end of  such  specified  period  and  a
  notice to remove the animal within ten days thereafter has been given to
  the person who placed the animal in such custody, by means of registered
  letter mailed to the last known address of such person, or:
2.  Having  been  placed  in such custody for an unspecified period of
  time the animal is not removed within twenty days after notice to remove
  the animal has been given to the person who placed the  animal  in  such
  custody,  by  means  of  a  registered  letter  mailed to the last known
  address of such person.
3. The giving of notice as prescribed in this section shall be  deemed
  a  waiver  of any lien on the animal for the treatment, board or care of
  the animal but shall not relieve the owner of the animal removed of  his
  contractual liability for such treatment, board or care furnished.