N.Y. Multiple Residence Law § 58

§ 58. Cellar ceiling. The ceiling of the cellar shall be fire-retarded\nor be equipped with a sprinkler system, or the entire cellar shall be\nequipped with a fire-detecting system. Any room within the dwelling in\nwhich a boiler or furnace is used for generating heat or hot water to\nservice the dwelling shall be enclosed with fire-retarded partitions and\nevery door opening therefrom and its assembly shall be fireproof with\nthe door self-closing. The ceiling of such room shall also be\nfire-retarded or be equipped with a sprinkler system, or the room shall\nbe equipped with a fire-detecting system.\n