Section 517-A - Termination of membershipWith respect to the New York state employees' retirement system and the New York state and local police and fire retirement system, membership in the retirement system shall cease upon the occurrence of any one of the following conditions:
1. When seven years have elapsed since a member has performed active service provided, however, that no part of such seven year period shall run during such time as a member, with at least five years of member service credit, shall serve as an officer or employee of the federal government or the United Nations or other international organizations of which the United States of America is a member.2. When a member shall die.3. When a member shall retire.4. When a member, who is not vested, withdraws accumulated contributions in accordance with the provisions of section five hundred seventeen of this article. If such person subsequently rejoins the retirement system within five years from the date he discontinued service with the state or a participating employer, such person shall be entitled to every retirement right, benefit and privilege which would have been available to him had he reentered membership on the date of such discontinuance from service.N.Y. Retire. and Soc. Sec. Law § 517-A