§ 611. 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 of this chapter 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.