p. 1118In the Matter of Public Employees Federation, AFL-CIO, Respondent, v Mario M. Cuomo, as Governor of the State of New York, et al., Appellants. (And One Other Related Proceeding.)— Appeal from an order of the Supreme Court at Special Term (Torraca, J.), entered August 30, 1983 in Albany County, which, inter alia, granted petitioner’s motion for a preliminary injunction. Since petitioner failed to establish the required element of irreparable harm in the absence of a preliminary injunction, that portion of Special Term’s order granting such relief must be reversed. Chapter 414 of the Laws of 1983, enacted June 30,1983, modified many aspects of the retirement plan of public employees who entered State service on or after July 1, 1976 (commonly known as the Tier III Plan). One major modification concerned the ability of
p. 1120the employee with a benefit to which he is not entitled. It is apparent, therefore, that, without a preliminary injunction, no irreparable harm will be done to petitioner or those it represents in the event that petitioner is correct on the merits of its challenge to the statute, but that substantial harm will be done to respondents by a preliminary injunction if petitioner is incorrect on the merits. That some nonvested Tier III employees may have opted to leave State service prior to the effective date of the statute, rather than remain in State service and risk the possibility that petitioner may lose on the merits of its challenge to the statute, does not, in our view, constitute irreparable harm. In any event, since the statute has now become effective, nonvested Tier III employees are no longer confronted with such a choice. Rather, they must await the outcome of this action on its merits. Under these circumstances, it was an abuse of discretion for Special Term to grant the preliminary injunction and its order must be modified accordingly. Order modified, on the law and the facts, by deleting so much thereof as enjoined respondents from enforcing subdivision c of section 613 of the Retirement and Social Security Law, and, as so modified, affirmed, without costs. Sweeney, J. P., Kane, Casey, Weiss and Levine, JJ., concur.