N.Y. Multiple Residence Law § 58: Cellar ceiling

§ 58. Cellar ceiling. The ceiling of the cellar shall be fire-retarded

or be equipped with a sprinkler system, or the entire cellar shall be

equipped with a fire-detecting system. Any room within the dwelling in

which a boiler or furnace is used for generating heat or hot water to

service the dwelling shall be enclosed with fire-retarded partitions and

every door opening therefrom and its assembly shall be fireproof with

the door self-closing. The ceiling of such room shall also be

fire-retarded or be equipped with a sprinkler system, or the room shall

be equipped with a fire-detecting system.