N.Y. Estates, Powers & Trusts Law § 1-2.19
* (a) A will is an oral declaration or written instrument, made as prescribed by 3-2.1 or 3-2.2 to take effect upon death, whereby a person disposes of property or directs how it shall not be disposed of, disposes of his body or any part thereof, exercises a power, appoints a fiduciary or makes any other provision for the administration of his estate, and which is revocable during his lifetime. * NB Effective until December 12, 2027 * (a) A will is a written instrument, oral declaration or electronic record, made as prescribed by 3-2.1, 3-2.2 or 3-6.6, respectively, to take effect upon death, whereby a person disposes of property or directs how it shall not be disposed of, disposes of their body or any part thereof, exercises a power, appoints a fiduciary or makes any other provision for the administration of their estate, and which is revocable during their lifetime. * NB Effective December 12, 2027