If conditions warrant, commanders may use inexpensive fencing such as three-strand barbed wire to mark
perimeters or to assist in controlling and screening authorized entries into storage areas that do not require
mandatory fencing.
An explosives area must be placarded at each entrance. The placard requires personnel to present proper
credentials and turn over all prohibited articles to the guard on duty, or place them in containers provided for that
purpose, before entering the area. The explosives area must be separated from administration, residential,
unrelated, and warehouse areas by fences. Fencing (excluding that installed for security reasons only) should not
be placed closer to magazines than magazine distance. It should not be closer to explosives operating buildings
than the intraline distance.
Reservation boundaries should be fenced. In certain cases, topography or other physical considerations may make
fencing impossible or impracticable. Security measures must be taken according to AR 50-6 and AR 190-11.
The boundary of each explosives area must be posted at 500-foot intervals to warn against trespassing according
to AR 190-13.
Security Lighting
Security lighting must be provided for category I and category II storage facilities. New security lighting systems
may not be programmed for category III and category IV facilities unless they are determined to be necessary
based on an assessment of the local threats and vulnerabilities. Security lighting must be provided for the exterior
doors of all category I and category II item storage rooms and magazines. The switches for exterior lights must
be installed so that they are not accessible to unauthorized individuals. Exterior lights must be, covered with
wire-mesh screens to prevent their being broken by thrown objects. Vandal-resistant lenses may be used instead
of wire-mesh screens.
Security lighting must also be provided for motor pools, hangars, and outdoor parking areas for vehicles and
aircraft that have category I and category II ammunition and explosives stored on board, and for such items
located in open storage areas. Lighting must be provided along storage site perimeter barriers as determined
necessary by the commander based on the threat, perimeter extremities, and surveillance capabilities.
Security lighting requirements must conform to the ammunition and safety requirements of Appendix C, TM 9-
1300-206. FM 19-30 should be used as a guide in determining lighting descriptions, layouts, patterns, and
minimum intensities. Emergency lighting and standby power are not required, but should be considered when the
threat and vulnerability warrant.
Locks
A class V steel vault door with a built-in, three-position, dial-type, changeable-combination lock or a key-
operated, high-security padlock and hasp (military specification P-43607 or P-49851) must be used on doors to
structures housing classified material. This is according to DOD 5200.I-R, as implemented by AR 380-5.
Otherwise, each ammunition magazine or room must be secured with a high-security padlock and high-security
hasp approved by the concerned DOD component. Storage facility hasps and locking hardware must provide
comparable protection to that afforded by the locks. Examples include the high-security hasp (MIL-H-43905) and
the Navy's high-security shrouded hasp (MIL-H-291181). Other high-security locking hardware may be approved
for use by the responsible DOD component. Facilities in which aircraft or vehicles are stored with ammunition
aboard must be secured with an approved security padlock. See AR 190-11 for a list of approved DA and DOD
locks and hasps.
Padlocks are locked to the staple or hasp when the area or container is open to preclude theft, loss, or substitution
of the lock.
3-9
MM0170
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