An application for service or deferred retirement must be unconditional but may be withdrawn at any time prior to the expiration of 14 days after the effective date of retirement by filing a written request for such withdrawal. In order to be effective, the request must be filed with the system's office no later than the last day of such 14-day period. An application for disability retirement must be unconditional but may be withdrawn by filing a written request for such withdrawal in the system's office, at any time prior to the date the retirement board acts upon the application or the day before the retirement becomes effective, whichever is later.
N.Y. Comp. Codes R. & Regs. Tit. 21 § 5005.4