N.Y. Labor Law § 269: Application of provisions

§ 269. Application of provisions. 1. The provisions of sections two

hundred and sixty-one, two hundred and sixty-two, two hundred and

sixty-three, two hundred and sixty-five, two hundred and sixty-six, and

two hundred and sixty-seven shall apply to all buildings erected after

October first, nineteen hundred and thirteen, and to all construction

made after that date in buildings erected prior to that date. The board

shall adopt rules affecting construction made before October first,

nineteen hundred and thirteen, in buildings theretofore erected,

requiring compliance with such of the requirements of said sections, or

with such other or different requirements as it finds reasonable and

adequate to protect persons employed in such buildings against fire.

2. Altered buildings. When changes are made to a building erected

prior to October first, nineteen hundred thirteen, which are so material

and extensive as to constitute a new building, such building shall

comply with the provisions of section two hundred seventy. However, the

words material or extensive shall not apply if the structure is altered

by adding an extension horizontally in such manner as to increase any or

all of its floor areas by not more than twenty-five per centum.