New York Consolidated Laws, Multiple Dwelling Law - MDW § 58. Incombustible materials

Except as may be specifically provided otherwise in this chapter, all required incombustible materials, including fireproofed wood, shall be capable of withstanding successfully standard fire tests as prescribed by the building code.  In the absence of any such prescribed requirements, the department shall have the power to make supplementary regulations relative to standard fire tests for incombustible materials.