N.Y. RCO Law § 189-C

§ 189-c. Meetings of trustees. The chairman of the board of trustees\nof any incorporated church or society to which this article is\napplicable or any two members of such board may call a meeting of such\ntrustees by giving at least twenty-four hours' notice thereof,\npersonally or by mail, to all the other trustees, but by the unanimous\nconsent of the trustees a meeting may be held without previous notice\nthereof. A majority of the trustees lawfully convened shall constitute a\nquorum for the transaction of business. In case of a tie vote at the\nmeeting of the trustees the presiding officer of such meeting shall,\nnotwithstanding he had voted once, have an additional casting vote. In\ncase of a vacancy in the office of trustee the remaining trustees may\nfill such vacancy until the next annual corporate meeting when the\nvacancy shall be filled for the unexpired term.\n