New York Laws
Article 13 - General Provisions
607 - Retirement System.

ยง 607. Retirement system. Persons who are members of an existing
pension or retirement system, or beneficiaries or prospective
beneficiaries thereof, shall continue to have the rights, privileges,
obligations and status with respect to such system which are now or
hereafter may be provided by law and the benefits of such system shall
not be diminished or impaired by reason of the enactment of this
chapter.