N.Y. Soc. Serv. Law § 472-n

§ 472-n. Statements as to age. In all cases under this article where\nchildren shall come under the care, custody or control of said\ncorporation, the age of such children shall, so far as said corporation\nis concerned, be prima facie deemed and taken to be correct as stated in\nthe written surrender of the parent or guardian, or the order of\nplacement or commitment by a family court, or in the transfer or\nplacement by any agency at the time of placement, admission or\ncommitment.\n