N.Y. Civ. Serv. Law § 157

§ 157. Deductions from retirement allowances. A person who (1) retired\nfrom employment with the state, (2) is receiving a retirement allowance\nfrom a state retirement system, and (3) at the time of his retirement\nhad group life insurance premiums and employee organization dues\ndeducted from his salary, may elect to have deductions for such purposes\nmade from his retirement allowance by providing notification in writing\nto the head of the retirement system from which he retired. Such life\ninsurance deduction shall be transmitted to the insurance carrier. Such\ndues deduction shall be transmitted to the employee organization. Any\nsuch written authorization may be withdrawn by such retired employee at\nany time upon written notice of such withdrawal to the head of the\nretirement system from which he retired.\n