N.Y. Comp. Codes R. & Regs. tit. 10, § 82-1.2
(b) The geographical boundaries and territorial extent of the health services areas in New York State for health systems agencies are based on county groupings, approved by the governor, as described below:
Area 1: the counties of Allegany, Cattaraugus, Chautauqua, Erie, Genesee, Orleans, Niagara, and Wyoming.
Area 2: the counties of Chemung, Livingston, Monroe, Ontario, Schuyler, Seneca, Steuben, Wayne, and Yates.
Area 3: the counties of Cayuga, Cortland, Herkimer, Jefferson, Lewis, Madison, Oneida, Onondaga, Oswego, St. Lawrence, and Tompkins.
Area 4: the counties of Broome, Chenango, Tioga, Bradford, Sullivan and Susquehanna provided a bi-state planning agreement with the State of Pennsylvania exists.
Area 5: the counties of Albany, Clinton, Columbia, Delaware, Essex, Franklin, Fulton, Greene, Hamilton, Montgomery, Otsego, Rensselaer, Saratoga, Schenectady, Schoharie, Washington, and Warren.
Area 6: the counties of Dutchess, Orange, Putnam, Rockland, Sullivan, Ulster, and Westchester.
Area 7: the counties of Bronx, Kings, New York, Queens, and Richmond.
Area 8: the counties of Nassau and Suffolk.
(a) Geographical description.
Health service areas have been established for health systems agencies such that: