New York Codes, Rules and Regulations
Title 2 - DEPARTMENT OF AUDIT AND CONTROL
Chapter VI - New York State and Local Employees' Retirement System and New York State and Local Police and Fire Retirement System
Part 341 - Filing Retirement Applications And Option Election Forms; Withdrawing And Changing The Effective Date Of Service Retirement
Section 341.5 - Withdrawal of service retirement applications

An application for service retirement can only be withdrawn by filing a written request to withdraw such application with the Retirement System prior to the effective date of retirement. This written request must be signed by the member, or if he is incompetent, by his spouse or the committee of his property, or if he is a conservatee, by his spouse or the conservator of his property. Such written request will not be considered filed until it is actually received. However, such a written request will be deemed filed on the date it is mailed if it is mailed to the Retirement System by United States Postal Service certified mail, return receipt requested and is actually received by the Retirement System as the result of such mailing.