N.Y. Gen. Mun. Law § 209-C
The authorities having control of fire departments and fire companies may organize within such departments or companies fire police squads composed of volunteer firefighters who are members of such departments or companies. Members of fire police squads, so organized, at such times as the fire department, fire company or an emergency rescue and first aid squad of the fire department or fire company are on duty, or when, on orders of the chief of the fire department or fire company of which they are members, they are separately engaged in response to a call for assistance pursuant to the provisions of section two hundred nine of this article, shall have the powers of and render service as peace officers. A member of a fire police squad shall take an oath of office as a fire police officer in the following form: "I do solemnly swear (or affirm) that I will support the constitution of the United States, and the constitution of the State of New York, and that I will faithfully discharge the duties of the office of fire police officer of the ...................... fire company (or fire department), according to the best of my ability." Such oath shall be filed in the office of the city clerk in the case of a firefighter of a fire company or fire department in a city, in the office of the village clerk in the case of a firefighter of a fire company or fire department in a village, and in the office of the town clerk in all other cases. Notwithstanding any other provision of law to the contrary, a member of a fire police squad shall have satisfied any requirement for training as provided by any general or local law if the person has satisfactorily completed a training course offered by the state office of fire prevention and control, or an equivalent course as approved by the state office of fire prevention and control.
N.Y. Gen. Mun. Law § 209-C