N.Y. Retirement & Social Security Law § 515: Optional retirement program

§ 515. Optional retirement program. a. Any optional retirement program

authorized by state law which, on the day before the effective date of

this article, would be available to an eligible employee subject to the

provisions of article eleven in lieu of joining a public retirement

system of the state, will continue to be available to eligible employees

subject to this article during the period this article is in effect.

c. Nothing herein contained shall be construed as permitting an

employee who previously elected coverage under an optional retirement

program to elect coverage under a public retirement system of the state.