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Table 4-4
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Storage Magazine
Construction By Type
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Construction Features
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Type 1
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Type 2
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Type 3
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Type 4
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Type 5
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Permanent
|
X
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X
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X
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Portable or Mobile
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X
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X
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X
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X
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Bullet-Resistant
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X
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X
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Fire-Resistant
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X
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X
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X
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X
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X (1)
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Theft- Resistant
|
X
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X
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X
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X
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X
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Weather- Resistant
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X
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X
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X
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X
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X
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Ventilated
|
X
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X
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X
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(1) Over the road trucks or
semi-trailers used as Type 5 magazines for temporary storage need not be fire
resistant.
4-4-1
Type 1
Storage
A Type 1 magazine shall be a permanent structure, e.g., a
building, an igloo or Army-type structure, a tunnel, or a dugout. It shall be
bullet-resistant, fire-resistant, weather-resistant, theft-resistant, and
ventilated.
(A)
Buildings: All building-type magazines shall be
constructed of masonry, wood, metal, or a combination of these materials and
shall have no openings except for entrances and ventilation. The ground around
building magazines shall slope away for drainage or other adequate drainage
shall be provided.
(B)
Masonry Wall Construction: Masonry wall construction
shall consist of brick, concrete, tile, cement block, or cinder block and shall
be not less than 8 inches in thickness. Hollow masonry units used in
construction shall have all hollow spaces filled with well-tamped, coarse, dry
sand or weak concrete (at least 1 part cement + 8 parts of sand with enough
water to dampen the mixture while tamping in place). Interior walls shall be
constructed of, or covered with, a non- sparking material.
(C)
Fabricated Metal Wall
Construction: Metal wall construction shall consist of sectional
sheets of steel or aluminum, not less than #14 gauge, securely fastened to a
metal framework. Metal wall construction shall be either lined inside with
brick, solid cement blocks, hardwood not less than 4 inches thick, or shall
have at least a 6-inch sand-fill between interior and exterior walls. Interior
walls shall be constructed of, or covered with, a non-sparking
material.
(D)
Wood
Frame Wall Construction: The exterior of outer wood walls shall be
covered with steel or aluminum not less than #26 gauge. An inner wall of, or
covered with, non-sparking material shall be constructed so as to provide a
space of not less than 6 inches between the outer and inner walls. The space
shall be filled with coarse, dry sand or weak concrete.
(E)
Floors: Floors
shall be constructed of, or covered with, a non-sparking material and shall be
strong enough to bear the weight of the maximum quantity materials to be
stored. Use of pallets covered with a non-sparking material is considered
equivalent to a floor constructed of, or covered with, a non-sparking
material.
(F)
Foundations: Foundations shall be constructed of
brick, concrete, cement block, stone, or wood posts. If piers or posts are used
in lieu of a continuous foundation, the space under the buildings shall be
enclosed with metal.
(G)
Roof: Except for buildings with fabricated metal
roofs, the outer roof shall be covered with no less than #26 gauge steel or
aluminum fastened to 7/8-inch sheathing.
(H)
Bullet-Resistant Ceilings on
Roofs: Where it is possible for a bullet to be fired directly
through the roof and into the magazine at such an angle that the bullet would
strike the explosives within, the magazine shall be protected by one of
following methods:
(1) A sand tray with a
layer of building paper, plastic, or other nonporous material filled with not
less than 4 inches of coarse, dry sand, shall be located at the tops of inner
walls covering the entire ceiling area, except that portion necessary for
ventilation.
(2) A fabricated metal
roof shall be constructed of 3/16-inch thick plate steel lined with 4 inches of
hardwood. For each additional 1/16-inch of plate steel, the hardwood lining may
be decreased by 1 inch.
(I)
Doors: All doors
shall be constructed of 1/4-inch plate steel and lined with 3 inches of
hardwood. Hinges and hasps shall be attached to the doors by welding, riveting,
or bolting (with nuts on the inside of the door). They shall be installed in
such a manner that the hinges and hasps cannot be removed when the doors are
closed and locked.
(J)
Locks: Each door shall be equipped with at least one
of the following types of locks:
(1) Two
mortise locks
(2) Two padlocks
fastened in separate hasps and staples
(3) A combination of a mortise lock and a
padlock
(4) A mortise lock that
requires two keys to open
(5) A
three-point lock.
Padlocks shall have at least 5 tumblers and a case-hardened
shackle of at least 3/8-inch in diameter. Padlocks shall be protected with
1/4-inch sheet hoods constructed so as to prevent sawing or lever action on the
locks, hasps, and staples. These requirements shall not apply to magazine doors
that are adequately secured on the inside by means of a bolt, lock, or bar that
cannot be actuated from the outside.
(K)
Ventilation:
Ventilation shall be provided to prevent dampness and heating of stored
explosive materials. Ventilation openings shall be screened to prevent the
entrance of sparks. Ventilation openings in sidewalls and foundations shall be
offset or shielded for bullet-resistance purposes. Magazines having foundation
and roof ventilators with the air circulating between the side walls and the
floors and between the side walls and the ceiling shall have a wooden lattice
lining or equivalent to prevent the packages of explosive materials from being
stacked against the side walls and blocking the air circulation.
(L)
Exposed Metal:
No sparking material shall be exposed to contact with the stored explosive
materials. All ferrous metal nails in the floor and sidewalls which might be
exposed to contact with explosive materials shall be blind-nailed, countersunk,
or covered with a non-sparking latticework or other non-sparking
material.
(M)
Igloos,
Army-Type Structures, Tunnels, & Dugouts: Igloo, army-type
structure, tunnel, and dugout magazines shall be constructed of reinforced
concrete, masonry, metal, or a combination of these materials. They shall have
an earth mound covering of not less than 24 inches on the top, sides, and rear
unless the ceiling or roof meets the bullet-resistant ceiling or roof
requirements of this section. Interior walls shall be constructed of, or
covered with, a non-sparking material. Magazines of this type shall also be
constructed in conformity with the requirements of the floors, doors, locks,
ventilation, and exposed metal portions outlined in this section.
4-4-2
Type 2 Storage
A Type 2 magazine shall be a portable or mobile structure
such as a box, skid-magazine, trailer, or semitrailer.
4-4-2-1
Outdoor Type 2 Magazines
Outdoor Type 2 magazines shall be bullet-resistant,
fire-resistant, weather-resistant, theft-resistant, and ventilated. They shall
be supported to prevent direct contact with the ground and, if less than 1
cubic yard in size, shall be securely fastened to a fixed object. The ground
around outdoor magazines shall slope away for drainage or other adequate
drainage shall be provided. When unattended, vehicular magazines shall have
wheels removed or shall otherwise be effectively immobilized by methods
approved by the Division.
(A)
Exterior Construction: The exterior and covers or
doors shall be constructed of 1/4-inch steel and shall be lined with 2 inches
of hardwood. Magazines with top openings shall have lids with water-resistant
seals or which overlap the sides by at least 1 inch when in a closed
position.
(B)
Hinges
& Hasps: Hinges and hasps shall be attached to the covers or
doors by welding, riveting, or bolting (with nuts on the inside of the door).
Hinges and hasps shall be installed so that they cannot be removed when the
doors are closed and locked.
(C)
Locks: Each door shall be equipped with at least one
of the following types of locks:
(1) Two
mortise locks
(2) Two padlocks
fastened in separate hasps and staples
(3) A combination of a mortise lock and a
padlock
(4) A mortise lock that
requires two keys to open
(5) A
three-point lock.
Padlocks shall have at least 5 tumblers and a case-hardened
shackle of at least 3/8-inch diameter. Padlocks shall be protected with
1/4-inch steel hoods constructed so as to prevent sawing or lever action on the
locks, hasps, and staples. These requirements do not apply to magazine doors
that are adequately secured on the inside by means of a bolt, lock, or bar that
cannot be actuated from the outside.
(D)
Ventilation:
Ventilation shall be provided to prevent dampness and heating of stored
explosive materials. Ventilation openings shall be screened to prevent the
entrance of sparks. Ventilation openings in sidewalls shall be offset or
shielded for bullet-resistance purposes. Packages of explosive materials shall
not be stacked against the side walls and block the air circulation.
4-4-2-2
Indoor Type 2
Magazines
Indoor Type 2 magazines shall be fire-resistant and
theft-resistant if the buildings in which they are stored provide protection
from the weather and from bullet penetration. No indoor magazine may be located
in a residence or dwelling. The indoor storage of high explosives may not
exceed a quantity of 50 pounds. More than one indoor magazine may be located in
the same building if the total quantity of all explosive materials stored does
not exceed 50 pounds. Detonators shall be stored in separate magazines.
(A)
Exterior
Construction: Indoor magazines shall be constructed of wood or
metal according to one of the following specifications:
(1) Indoor magazines constructed of wood
shall have sides, bottoms, and lids or doors constructed of two-inch wood and
shall be well-braced at the corners. The magazines shall be covered on the
exterior with sheet metal of not less than #26-gauge. Nails exposed to the
interior of magazines shall be countersunk.
(2) Indoor magazines constructed of metal
shall have sides, bottom, and lids or doors constructed of at least #12-gauge
metal and shall be lined inside with a non-sparking material. Edges of metal
covers shall overlap sides at least 1 inch.
(B)
Hinges &
Hasps: Hinges and hasps shall be attached to the covers or doors
by welding, riveting, or bolting (with nuts on the inside of the door). Hinges
and hasps shall be installed so that they cannot be removed when the doors are
closed and locked.
(C)
Locks: Each door shall be equipped with at least one
of the following types of locks:
(1) Two
mortise locks
(2) Two padlocks
fastened in separate hasps and staples
(3) A combination of a mortise lock and a
padlock
(4) A mortise lock that
requires two keys to open
(5) A
three-point lock.
Padlocks shall have at least 5 tumblers and a case-hardened
shackle of at least 3/8-inch diameter. Padlocks shall be protected with
1/4-inch steel hoods constructed so as to prevent sawing or lever action on the
locks, hasps, and staples. Indoor magazines located in secure rooms, that are
locked as provided in this paragraph, may have each door or opening locked with
1 steel padlock (which need not be protected by a steel hood) having at least 5
tumblers and a case-hardened shackle of at least 3/8-inch diameter, if the lock
hinges and hasps are securely fastened to the magazine and to the door frame.
These requirements do not apply to magazine doors that are adequately secured
on the inside by means of a bolt, lock, or bar that cannot be actuated from the
outside.
4-4-3
Alternate Construction Standards
for Storage Facilities
It has been determined that a wide range of construction
criteria meet the bullet-resistant requirements of ATF Rule 76-18 as published
in Bureau Of Alcohol, Tobacco, Firearms, and Explosives, Department Of The
Treasury, Publication ATF p 5400.7 (2012) for the construction of storage
facilities for explosive materials.
In order to promote standards of safety and security in the
storage of explosive materials while allowing the industry a wide latitude in
the selection of construction materials, it is held that storage facilities
(magazines) that are constructed according to the following minimum
specifications are bullet-resistant and meet the requirements of the
regulations as set forth in 27 CFR Part 55 (all steel and wood dimensions are
actual thicknesses. To meet the concrete block and brick dimensions indicated,
the manufacturers' represented thicknesses may be used).
(A) Exterior of 5/8-inch steel, lined with an
interior of any type of non-sparking material.
(B) Exterior of 1/2-inch steel, lined with an
interior of not less than 3/8-inch plywood.
(C) Exterior of 3/8-inch steel, lined with an
interior of 2 inches of hardwood.
(D) Exterior of 3/8-inch steel, lined with an
interior of 3 inches of softwood or 21/4 inches of plywood.
(E) Exterior of 1/4-inch steel, lined with an
interior of 3 inches of hardwood.
(F) Exterior of 1/4-inch steel, lined with an
interior of 5 inches of softwood or 51/4 inches of plywood.
(G) Exterior of 1/4-inch steel, lined with an
intermediate layer of 2 inches of hardwood and an interior lining of 11/2
inches of plywood.
(H) Exterior of
3/16-inch steel, lined with an interior of 4 inches of hardwood.
(I) Exterior of 3/16-inch steel, lined with
an interior of 7 inches of softwood or 63/4 inches of plywood.
(J) Exterior of 3/16-inch steel, lined with
an intermediate layer of 3 inches of hardwood and an interior lining of
3/4-inch of plywood.
(K) Exterior
of 1/8-inch steel, lined with an interior of 5 inches of hardwood.
(L) Exterior of 1/8-inch steel, lined with an
interior of 9 inches of softwood.
(M) Exterior of 1/8-inch steel, lined with an
intermediate layer of 4 inches of hardwood and an interior lining of 3/4-inch
plywood.
(N) Exterior of any type
of fire-resistant material which is structurally sound, lined with an
intermediate layer of 4 inches of solid concrete block, or 4 inches of solid
brick or 4 inches of solid concrete; and, an interior lining of 1/2-inch
plywood placed securely against the masonry lining.
(O) Standard 8-inch concrete block with voids
filled with well-tamped sand/cement mixture.
(P) Standard 8-inch solid brick.
(Q) Exterior of any type of fire-resistant
material which is structurally sound, lined with an intermediate 6-inch space
filled with well-tamped dry sand or well-tamped sand/cement mixture.
(R) Exterior of 1/8-inch steel, lined with a
first intermediate layer of 3/4-inch plywood, a second intermediate layer of
35/8 inches of well-tamped dry sand or sand/cement mixture and an interior
lining of 3/4-inch plywood.
(S)
Second intermediate layer of 35/8 inches well tamped dry sand or sand/cement
mixture, a third intermediate layer of 3/4-inch plywood, and a fourth
intermediate layer of two inches of hardwood or #14 gauge steel and an interior
lining of 3/4-inch plywood.
(T)
8-inch thick solid concrete.
4-4-4
Type 3 Storage
A Type 3 magazine shall be a "day-box" or other portable
magazine. It shall be fire-resistant, weather-resistant, and theft-resistant. A
Type 3 magazine shall be constructed of #12-gauge metal lined with either
1/2-inch plywood or 1/2-inch Masonite-type hardboard. Doors shall overlap sides
by at least 1 inch. Hinges and hasps shall be attached by welding, riveting or
bolting (with nuts on the inside of the door). A single lock having at least 5
tumblers and a case-hardened shackle of at least 3/8-inch diameter shall be
sufficient for locking purposes. Explosive materials may not be left unattended
in Type 3 magazines, but must be removed to either a Type 1 or 2 magazine for
unattended storage.
4-4-5
Type 4 Storage
A Type 4 magazine shall be a building, igloo or army-type
structure, tunnel, dugout, box, trailer, or a semitrailer or other mobile
magazine.
4-4-5-1
Outdoor Type 4
Magazines
Outdoor Type 4 magazines shall be fire-resistant,
weather-resistant, theft-resistant, ventilated and shall be at least 1 cubic
yard in size, or securely fasted to a fixed object. The ground around outdoor
magazines shall slope away for drainage or other adequate drainage shall be
provided. When unattended, vehicular magazines shall have wheels removed or
shall otherwise be effectively immobilized by other methods approved by the
Division.
(A)
Construction: Outdoor magazines shall be constructed
of masonry, metal-covered wood, fabricated metal, or a combination of these
materials. Foundation shall be constructed of brick, concrete, cement block,
stone, or metal or wood posts. If piers or posts are used in lieu of a
continuous foundation, the space under the buildings shall be enclosed with
fire-resistant material. The walls and floors shall be constructed of, or
covered with, a non-sparking material or lattice work. The doors or covers
shall be metal or solid wood covered with metal.
(B)
Hinges and
Hasps: Hinges and hasps shall be attached to the covers or doors
by welding, riveting, or bolting (nuts on inside of door). Hinges and hasps
shall be installed so that they cannot be removed when the doors are closed and
locked.
(C)
Locks: Each door shall be equipped with at least one
of the following types of locks:
(1) 2 mortise
locks
(2) 2 padlocks fastened in
separate hasps and staples
(3) A
combination of a mortise lock and a padlock
(4) A mortise lock that requires two keys to
open
(5) A three-point lock.
Padlocks shall have at least 5 tumblers and a case-hardened
shackle of at least 3/8-inch diameter. Padlocks shall be protected with
1/4-inch steel hoods constructed so as to prevent sawing or lever action on the
locks, hasps, and staples. These requirements do not apply to magazine doors
that are adequately secured on the inside by means of a bolt, lock, or a bar
that cannot be actuated from the outside.
(D)
Ventilation:
Ventilation shall be provided to prevent dampness and heating of stored
explosive materials. Ventilation openings shall be offset or shielded and
screened to prevent the entrance of sparks. The packages of explosive materials
shall not be stacked against the side walls and block the air
circulation.
4-4-5-2
Indoor Type 4 Magazines
Indoor magazines shall be fire-resistant and
theft-resistant. They need not be weather-resistant if the buildings in which
they are stored provide protection from the weather. No indoor magazine may be
located in a residence or dwelling. The indoor storage of low explosives may
not exceed a quantity of 50 pounds. More than one indoor magazine may be
located in the same building if the total quantity of all explosive materials
stored does not exceed 50 pounds. Detonators that will not mass detonate shall
be stored in separate magazines and the total number of detonators may not
exceed 5,000.
(A)
Construction: Indoor magazines shall be constructed of
masonry, metal-covered wood, fabricated metal, or a combination of these
materials. The walls and floors shall be constructed of, or covered with, a
non-sparking material. The doors or covers shall be metal or solid wood covered
with metal.
(B)
Hinges
& Hasps: Hinges and hasps shall be attached to the covers or
doors by welding, riveting, or bolting (with nuts on the inside of the door).
Hinges and hasps shall be installed so that they cannot be removed when the
doors are closed and locked.
(C)
Locks: Each door shall be equipped with at least one
of the following types of locks:
(1) 2
mortise locks
(2) 2 padlocks
fastened in separate hasps and staples
(3) A combination of a mortise lock and a
padlock
(4) A mortise lock that
requires two keys to open
(5) A
three-point lock.
Padlocks shall have at least 5 tumblers and a case-hardened
shackle of at least 3/8-inch diameter. Padlocks shall be protected with
1/4-inch steel hoods constructed so as to prevent sawing or lever action on the
locks, hasps, and staples. Indoor magazines located in secure rooms, that are
locked as provided in this paragraph, may have each door or opening locked with
one steel padlock (which need not be protected by a steel hood) having at least
five tumblers and a case-hardened shackle of at least 3/8-inch diameter, if the
lock hinges and hasps are securely fastened to the magazine and to the door
frame. These requirements do not apply to magazine doors that are adequately
secured on the inside by means of a bolt, lock, or bar that cannot be actuated
from the outside.
4-4-6
Type 5 Storage
A Type 5 magazine shall be a building, igloo or army-type
structure, tunnel, dugout, bin, box, trailer, or a semitrailer or other mobile
facility.
4-4-6-1
Outdoor Type 5
Magazines
Outdoor Type 5 magazines shall be weather-resistant,
fire-resistant and theft-resistant. Over-the-road trucks or semi-trailers used
as Type 5 magazines for temporary storage need not be fire-resistant. The
ground around magazines shall slope away for drainage or other adequate
drainage shall be provided. When unattended, vehicular magazines shall have
wheels removed or shall otherwise be effectively immobilized by kingpin locking
devices or other methods approved by the Division.
(A)
Construction:
The doors or covers shall be constructed of solid wood or metal.
(B)
Hinges &
Hasps: Hinges and hasps shall be attached to the covers or doors
by welding, riveting, or bolting (with nuts on the inside of the door). Hinges
and hasps shall be installed so that they cannot be removed when the doors are
closed and locked.
(C)
Locks: Each door shall be equipped with 1 padlock
having at least 5 tumblers and a case-hardened shackle of at least 3/8-inch
diameter. Indoor magazines located in secure rooms, that are locked as provided
in this paragraph, may have each door or opening locked with 1 steel padlock
(which need not be protected by a steel hood) having at least 5 tumblers and a
case-hardened shackle of at least 3/8-inch diameter, if the lock hinges and
hasps are securely fastened to the magazine and to the door frame. These
requirements do not apply to magazine doors that are adequately secured on the
inside by means of a bolt, lock or bar that cannot be actuated from the
outside.
4-4-6-2
Indoor Type 5 Magazines
Indoor Type 5 magazines shall be theft-resistant. They need
not be weather-resistant if the buildings in which they are stored provide
protection from the weather. No indoor magazine may be located in a residence
or dwelling. Indoor magazines containing quantities of blasting agents in
excess of 50 pounds shall be subject to the American Table of Distances in
Section 4-5-1 of this subpart.
(A)
Construction:
The doors or covers shall be constructed of wood or metal.
(B)
Hinges and
Hasps: Hinges and hasps shall be attached to the covers or doors
by welding, riveting, or bolting (with nuts on the inside of the door). Hinges
and hasps shall be installed so that they cannot be removed when the doors are
closed and locked.
(C)
Locks: Each door shall be equipped with 1 padlock
having at least 5 tumblers and a case-hardened shackle of at least 3/8-inch
diameter.
Indoor magazines located in secure rooms that are locked as
provided in this paragraph may have each door or opening locked with 1 steel
padlock (which need not be protected by a steel hood) having at least 5
tumblers and a case-hardened shackle of at least 3/8-inch diameter if the lock
hinges and hasps are securely fastened to the magazine and to the door frame.
These requirements do not apply to magazine doors that are adequately secured
on the inside by means of a bolt, lock or bar that cannot be actuated from the
outside.
