The Board of Standards and Appeals of the State of New York.

A building or structure whose occupants are engaged in, related with, deal with or are occupied with commerce.

The Industrial Commissioner of the State of New York.

A place where one or more persons are employed in which goods, wares or merchandise are offered for sale and includes a building, shed or structure, or any part thereof, occupied in connection with such establishment.

The owner of the premises, or the lessee of the whole thereof, or the agent in charge of the property.

A factory building, an office building, a mercantile building, a hotel building, a theatre building, a warehouse building, an apartment building, a State or municipal building, a school, a college or university building, a building containing a place of public assembly maintained or leased for pecuniary gain, or any other building more than one story high except a dwelling house less than three stories high or occupied by less than three families.

Fixed panels of transparent glass which form part of or are immediately adjacent to and within six feet horizontally of the vertical edge of an opening in which transparent glass doors are located. For purposes of this rule, a sidelight shall consist of transparent glass in which the transparent area above a reference line 18 inches above the adjacent ground, floor or equivalent surface is 80 per cent or more of the remaining area of the panel above such reference line.

Material predominantly ceramic in character which is not opaque and through which objects lying beyond are clearly visible. For the purpose of this rule, rigid transparent plastic material shall be construed as transparent glass.

A door, manually or power actuated, fabricated of transparent glass, in which the transparent area above a reference line 18 inches above the bottom edge of the door is 80 per cent or more of the remaining area of the door above such reference line.

Materials which will clearly transmit light and also minimize the possibility of cutting or piercing injuries resulting from breakage of the material. Materials covered by this definition include laminated glass, tempered glass (also known as heat-treated glass, heat-toughened glass, case-hardened glass or chemically tempered glass), wired glass, and rigid plastic.