77 Ill. Adm. Code 370.2360
Hazardous Areas
Section 370
Section 370.2360Â Hazardous
Areas
Walls at enclosure of hazardous
areas shall have a one (1) hour fire resistive rating. Doors at enclosure of
hazardous areas shall be a minimum three-fourth (¾) hour "C" label,
with automatic closer. Hazardous areas include the following:
a)Â Â Â Â Â Â Â Â Kitchens
b)Â Â Â Â Â Â Â Â Furnace and heater rooms
c)Â Â Â Â Â Â Â Â Laundries
d)Â Â Â Â Â Â Â Â Rooms or spaces, including repair shops, used for the storage
of combustible supplies and equipment in quantities deemed hazardous by the
authority having jurisdiction.