26 September 2006
STORAGE OF FLAMMABLE AND HAZARDOUS MATERIALS
AND HAZARDOUS WASTE.
Flammable/Hazardous (Flam/Haz) Storage.
Flam/Haz storage includes storage of flammable and combustible liquids as well
as storage of materials that are classified as hazardous materials. Provide
protection for facilities storing flammable and combustible liquids and other
petroleum oil lubricant (POL) products in accordance with NFPA 30, Flammable
and Combustible Liquids Code. Class IIIB combustible liquids must be protected
in the same manner as Class IIIA combustible liquids in accordance with NFPA
30. A single building is often used for storage of both flammable and
combustible liquids and hazardous materials. Requirements for the storage of
hazardous waste are separate and distinct from the storage of hazardous
Note: For Navy facilities used to store hazardous materials, also refer to UFC 4-
442-01N, Covered Storage. For Navy and Air Force facilities used to store
hazardous waste, also refer to UFC 4-451-10N, Hazardous Waste Storage.
Warehouse Areas for Storage of Flammable Liquids, Solids,
and Hazardous Materials.
Warehouse areas for storage of flammable liquids, solids, and hazardous
materials and chemicals must not exceed 1,858 m2 (20,000 ft2) between fire walls
and travel distance must not be more than 23 m (75 ft) (30.5 m (100 ft) if
sprinklered) to the nearest fire exit. Fire walls must have a minimum 4-hour
rating. Ceiling height must not exceed 9.1 m (30 ft).
Flammable and Combustible Liquid Storage Areas.
Provide automatic sprinkler protection. Ceiling and in-rack sprinklers must be
designed in accordance with and NFPA 30 and installed in accordance with
NFPA 13. Aqueous film-forming foam (AFFF) systems may be used where
permitted by NFPA 30. The following minimum criteria must apply:
Provide a minimum longitudinal flue space of 305 mm (12 in)
between double row racks and 230 mm (9 in) between single row
racks and the wall.
Provide ceiling level sprinklers and in-rack sprinklers. The in-rack
sprinklers must protect the longitudinal flue space and must be
located at every level of rack storage.
Exception: Where multiple levels of rack storage are used below the 1.83 m (6
ft) level for hand picking operations, provide one extra row of in-rack sprinklers in
the longitudinal flue space at the 0.914 m (3 ft) level. The first level of storage