N.Y. Multiple Dwelling Law § 100

§ 100. Application of article four. The provisions of this article\nshall apply to fireproof multiple dwellings erected after April\neighteenth, nineteen hundred twenty-nine, and to such dwellings only.\nThey shall apply to all such fireproof dwellings unless their\napplication is expressly limited to dwellings of a particular class.\nThey shall apply in addition to, and not in substitution for, the\nprovisions of article three.\n