N.Y. Agric. & Mkts. Law § 332
Any person having in his or her care, custody, or control any abandoned animal, as defined in section three hundred thirty-one of this article, may deliver such animal to any duly incorporated society for the prevention of cruelty to animals or any duly incorporated humane society having facilities for the care and eventual disposition of such animals, or, in the case of dogs, cats and other small animals, to any pound maintained by or under contract or agreement with any county, city, town, or village within which such animal was abandoned. The person with whom the animal was abandoned shall, however, on the day of divesting himself or herself of possession thereof, notify the person who had placed such animal in his or her custody of the name and address of the animal society or pound to which the animal has been delivered, such notice to be by registered letter mailed to the last known address of the person intended to be so notified. If an animal is not claimed by its owner within five days after being so delivered to such duly incorporated society for the prevention of cruelty to animals, duly incorporated humane society or pound, such animal may at any time thereafter be placed for adoption in a suitable home or euthanized in accordance with the provisions of section three hundred seventy-four of this chapter. In no event, however, shall the use of a decompression chamber or decompression device of any kind be used for the purpose of destroying or disposing of such animal.
N.Y. Agric. and Mkts. Law § 332