N.Y. Retirement & Social Security Law § 480
a. Every temporary right, privilege or benefit conferred pursuant to the provisions of a general, special or local law (other than pursuant to articles fourteen and fifteen of this chapter) for any member of a public retirement system or pension plan funded by the state or one of its political subdivisions, which is scheduled to expire or terminate at any time during nineteen hundred seventy-four, nineteen hundred seventy-five, nineteen hundred seventy-six, nineteen hundred seventy-seven, nineteen hundred seventy-eight, nineteen hundred seventy-nine, nineteen hundred eighty, nineteen hundred eighty-one, nineteen hundred eighty-two, nineteen hundred eighty-three, nineteen hundred eighty-four, nineteen hundred eighty-five, nineteen hundred eighty-six, nineteen hundred eighty-seven, nineteen hundred eighty-eight, nineteen hundred eighty-nine, nineteen hundred ninety, nineteen hundred ninety-one, nineteen hundred ninety-two, nineteen hundred ninety-three, nineteen hundred ninety-four, nineteen hundred ninety-five, nineteen hundred ninety-six, nineteen hundred ninety-seven, nineteen hundred ninety-eight, nineteen hundred ninety-nine, two thousand, two thousand one, two thousand two, two thousand three, two thousand four, two thousand five, two thousand six, two thousand seven, two thousand eight, two thousand nine, two thousand ten or two thousand eleven, is hereby extended, notwithstanding the provisions of such general, special or local law. Notwithstanding the foregoing, nothing in this section shall be construed to extend the provisions of article eighteen of this chapter or to affect any statutory deadlines provided in such article. b. (i) Any program under which an employer in a public retirement system funded by the state or one of its political subdivisions assumes all or part of the contribution which would otherwise be made by its employees toward retirement, which expires or terminates during nineteen hundred seventy-four, is hereby extended, notwithstanding the provisions of any other general, special or local law, except that commencing with the payroll period the first day of which is nearest to January first, nineteen hundred seventy-six, the rate of such contribution assumed by an employer in any of the public retirement systems funded and maintained by a city, shall be one-half the rate of such contribution assumed by such employer for the immediately preceding payroll period except as provided in paragraph (ii) of this subdivision.