N.Y. Comp. Codes R. & Regs. tit. 12, § 65.60 – Reconsideration.

(a) An application for reconsideration after a determination or decision made by the board must be filed with the board in writing, with proof of service, and state the reasons reconsideration should be granted by the board.
(b) Any objections to an application for reconsideration must be filed, with proof of service, within 10 days after service of the application for reconsideration.
(c) The board may, at any time, reopen a proceeding or require a hearing.