b. Locks and Keys.
(1) All doors used for access to arms storage rooms will meet the requirements of AR 190-11 or
DOD Manual 5100.76-M. If there are two doors on the arms storage room (on the same entrance or
doorway), at least one of these will meet the requirements. The Security Construction Statement (DA
Form 4604-R) will state which of these doors is the most secure. The most secure door will have a
high-security hasp and high-security padlock installed on it. The other door will be secured with a
secondary padlock or equivalent mortise cylinder lock. A Class V steel door may be used in lieu of
other doors. Vehicles and facilities in which items are stored will be secured with locking devices
specified in modification work orders (MWOs). Devices will not be designed and produced locally
without special approval. The product manager, physical security equipment (PM-PSE), gives such
approval.
(2) Keys to arms storage buildings, rooms, racks, and containers will be maintained separately
from other keys. These will be accessible only to those persons whose official duties require access to
them. A current roster of these persons will be kept within the unit, agency, or organization. The
number of keys will be held to the minimum number essential. Custody of keys will be transferred
between authorized persons after both parties have done a visual inventory of weapons. This should
include total count of weapons on hand. The change of custody and visual inventory will be recorded.
After duty hours, keys will be locked in a secure receptacle. This should be located away from the
storage area. Keys may be left in the custody of the responsible duty officer/NCO or CQ. If the duty
officer/NCO or CQ is not on the unaccompanied access roster for the arms storage area, they will sign
for a sealed box of keys (sealed with a secondary padlock). This box of keys, if weighing less than 500
pounds, cannot be left unguarded unless it is fastened to the structure by using a chain and padlock
meeting the same requirements as for weapons racks. At no time will keys be left unattended or
unsecured. Keys to arms storage buildings, rooms, racks, and/or containers will not be removed from
the post. The use of a master key system is prohibited. In the event of lost, misplaced, or stolen keys,
affected locks or cores to locks will be replaced immediately. Replacement or reserve locks, cores, and
keys will be well secured. This will preclude them from being readily accessible to unauthorized
persons.
(3) Key control registers will contain the printed name and signature of the person receiving the
key and the date/time of issuance. These registers will also contain the key number(s), printed name
and signature of the person issuing the keys, and date/time key was returned. Also, the printed name
and signature of the person receiving the returned key will be entered in the register.
(4) Padlocks will be locked to the staple or hasp when the area or container is open. This
measure will preclude theft, loss, or substitution of the lock.
MP1003
3-6
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