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[Code of Federal Regulations]
[Title 29, Volume 8]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 29CFR1926.151]

[Page 188-189]
 
                             TITLE 29--LABOR
 
CHAPTER XVII--OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT 
                                OF LABOR
 
PART 1926_SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION--Table of Contents
 
                Subpart F_Fire Protection and Prevention
 
Sec. 1926.151  Fire prevention.

    (a) Ignition hazards. (1) Electrical wiring and equipment for light, 
heat, or power purposes shall be installed in compliance with the 
requirements of subpart K of this part.
    (2) Internal combustion engine powered equipment shall be so located 
that the exhausts are well away from combustible materials. When the 
exhausts are piped to outside the building under construction, a 
clearance of at least 6 inches shall be maintained between such piping 
and combustible material.
    (3) Smoking shall be prohibited at or in the vicinity of operations 
which constitute a fire hazard, and shall be conspicuously posted: ``No 
Smoking or Open Flame.''
    (4) Portable battery powered lighting equipment, used in connection 
with the storage, handling, or use of flammable gases or liquids, shall 
be of the type approved for the hazardous locations.
    (5) The nozzle of air, inert gas, and steam lines or hoses, when 
used in the cleaning or ventilation of tanks and vessels that contain 
hazardous concentrations of flammable gases or vapors, shall be bonded 
to the tank or vessel shell. Bonding devices shall not be attached or 
detached in hazardous concentrations of flammable gases or vapors.
    (b) Temporary buildings. (1) No temporary building shall be erected 
where it will adversely affect any means of exit.
    (2) Temporary buildings, when located within another building or 
structure, shall be of either noncombustible construction or of 
combustible construction having a fire resistance of not less than 1 
hour.

[[Page 189]]

    (3) Temporary buildings, located other than inside another building 
and not used for the storage, handling, or use of flammable or 
combustible liquids, flammable gases, explosives, or blasting agents, or 
similar hazardous occupancies, shall be located at a distance of not 
less than 10 feet from another building or structure. Groups of 
temporary buildings, not exceeding 2,000 square feet in aggregate, 
shall, for the purposes of this part, be considered a single temporary 
building.
    (c) Open yard storage. (1) Combustible materials shall be piled with 
due regard to the stability of piles and in no case higher than 20 feet.
    (2) Driveways between and around combustible storage piles shall be 
at least 15 feet wide and maintained free from accumulation of rubbish, 
equipment, or other articles or materials. Driveways shall be so spaced 
that a maximum grid system unit of 50 feet by 150 feet is produced.
    (3) The entire storage site shall be kept free from accumulation of 
unnecessary combustible materials. Weeds and grass shall be kept down 
and a regular procedure provided for the periodic cleanup of the entire 
area.
    (4) When there is a danger of an underground fire, that land shall 
not be used for combustible or flammable storage.
    (5) Method of piling shall be solid wherever possible and in orderly 
and regular piles. No combustible material shall be stored outdoors 
within 10 feet of a building or structure.
    (6) Portable fire extinguishing equipment, suitable for the fire 
hazard involved, shall be provided at convenient, conspicuously 
accessible locations in the yard area. Portable fire extinguishers, 
rated not less than 2A, shall be placed so that maximum travel distance 
to the nearest unit shall not exceed 100 feet.
    (d) Indoor storage. (1) Storage shall not obstruct, or adversely 
affect, means of exit.
    (2) All materials shall be stored, handled, and piled with due 
regard to their fire characteristics.
    (3) Noncompatible materials, which may create a fire hazard, shall 
be segregated by a barrier having a fire resistance of at least 1 hour.
    (4) Material shall be piled to minimize the spread of fire 
internally and to permit convenient access for firefighting. Stable 
piling shall be maintained at all times. Aisle space shall be maintained 
to safely accommodate the widest vehicle that may be used within the 
building for firefighting purposes.
    (5) Clearance of at least 36 inches shall be maintained between the 
top level of the stored material and the sprinkler deflectors.
    (6) Clearance shall be maintained around lights and heating units to 
prevent ignition of combustible materials.
    (7) A clearance of 24 inches shall be maintained around the path of 
travel of fire doors unless a barricade is provided, in which case no 
clearance is needed. Material shall not be stored within 36 inches of a 
fire door opening.

[44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6, 1979, as amended at 51 
FR 25318, July 11, 1986]


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