N.Y. Multiple Dwelling Law § 140: Application of article five

§ 140. Application of article five. The provisions of this article

shall apply to non-fireproof multiple dwellings erected after April

eighteenth, nineteen hundred twenty-nine, and to such dwellings only.

They shall apply to all such non-fireproof dwellings unless their

application is expressly limited to dwellings of a particular class.

They shall apply in addition to, and not in substitution for, the

provisions of article three. However the provisions of this article

shall not apply to a multiple dwelling three stories or less in height

to be occupied by not more than three families in all, with a maximum

occupancy of two families on each floor in a two story building and one

family on each floor in a three story building, provided however that

all the provisions of article six are complied with, including section

one hundred seventy-a of said article.