N.Y. PBO Law § 8

§ 8. Commissions of officers. The commission of every officer\nappointed by the governor, or by the governor by and with the consent of\nthe senate, shall be signed by the governor and attested under the seal\nof this state, by the secretary of state, who shall make and record in\nhis office a copy of such commission, and deliver the original to the\nofficer appointed, by a messenger, if the governor shall so direct, and\notherwise, by mail, or as the secretary of state shall deem proper.\nCommissions of notaries public shall be signed by the secretary of\nstate, or by a person or persons in the department of state designated\nby the secretary of state, and shall be sent to the county clerk of the\ncounty in which such notaries public respectively reside. Commissions of\ncommissioners of deeds in other states, territories and foreign\ncountries, shall be signed by the secretary of state, or by a person or\npersons in the department of state designated by secretary of state.\nEvery other appointment of an officer, made by one or more state\nofficers, shall be in writing, and signed by the officer or officers, or\nby a majority of the officers, or by the presiding officer of the board\nor body making the appointment. Every such written appointment shall be\ndeemed the commission of the officer appointed, and if of a state\nofficer, a duplicate or a certified copy thereof shall be recorded in\nthe office of the department of state; if of a local officer it shall be\nsent to the clerk of the county in which the officer appointed shall\nthen reside, who shall file the same in his office, and notify the\nofficer appointed of his appointment.\n