N.Y. Comp. Codes R. & Regs. tit. 2, § 334.2 – Withdrawal of excess contributions.

(a) a member who is furnished with a retirement estimate which is dated 15 or less days prior to the effective date of that member's retirement; or
(b) a retiree who is furnished with a retirement estimate which is dated on or subsequent to the effective date of that retiree's retirement;
may file with the Retirement System a request for the withdrawal of excess contributions up to 30 days from the date of the retirement estimate.

On or after January 1, 1983: