§ 201. Requirements for fireproof construction. 1. Every new multiple
dwelling exceeding six stories or seventy-five feet in height shall be
fireproof.

2. The foregoing requirements shall not be construed as prohibiting:

a. Elsewhere than within, or in the openings to, the public halls,
stairs and shafts, the use of wood for sleepers, grounds, nailing
blocks, underflooring, finish flooring, interior doors with their
assemblies and saddles, floor base not more than one foot in height,
picture and wall moulding, shelving, closet and kitchen fixtures,
cupboards, cabinets and wardrobes.

b. The use of wood for window and for interior trim and finish backed
solidly against, or filled with, incombustible material and elsewhere
than within, or in the openings to, the public halls, stairs and shafts.