N.Y. Education Law § 6252
(d) Notwithstanding any other law to the contrary, beginning April first, two thousand thirteen any electing employee appointed on or after April first, two thousand twelve, the rate at which each such employee shall contribute in any current plan year (January first to December thirty-first) shall be determined by reference to the wages of such member in the second plan year (January first to December thirty-first) preceding such current plan year as follows: