N.Y. Est. Powers & Trusts Law § 13-4.6

§ 13-4.6 Effect of registration in beneficiary form\n (a) The designation of a TOD beneficiary on a registration in\nbeneficiary form has no effect on ownership until the owner's death. A\nregistration of a security in beneficiary form may be canceled or\nchanged at any time by the sole owner or all then surviving owners\nwithout the consent of the beneficiary.\n (b) A registration in beneficiary form can be revoked or amended by an\nexpress direction in the owner's will which specifically refers to such\nregistration.\n