In setting a combination, numbers should be used
that are widely separated by dividing the dial into three
parts and using a number from each third as one of the
combination numbers.
To prevent lockout, two people should try a new
combination before closing the container or vault
door.
The combination of a vault or container will be
assigned a security classification equal to the highest
category of the classified material authorized to be
stored in it. Records of combinations shall be sealed
in an envelope and kept on file by the security
manager, duty officer, communications officer, or
other persons designated by the commanding officer.
KEYS
When key-operated high-security padlocks are
used, keys will be controlled at the level of the highest
classification of material being protected. The
following safeguards will also be used:
A key and lock custodian for custody and
handling of keys will be appointed.
A key and lock control register that identifies
keys for each lock and where and by whom they are held
will be maintained.
Keys and locks will be audited each month and
a written record of each inventory will be made.
Keys will be inventoried each time custody
changes.
Keys will not be allowed to be removed from the
command.
Keys and spare locks will be stored in a locked
security container.
Locks will be changed or rotated at least annually
and replaced if their keys are lost or subjected to
compromise.
Master keying is prohibited.
A record for each vault, secure room, or container
used for storing classified material will be maintained
showing the location of the container, and the names,
home addresses, and telephone numbers of persons
having knowledge of the combinations. Standard
Form 700 (fig. 11-2) is used for this purpose.
SECURING A SECURITY CONTAINER
When securing a security container, rotate the
combination dial at least four complete turns in the
same direction. In most locks, if the dials are given
only a quick twist, it is possible to open the lock
merely by turning the dial back in the opposite
direction. Each drawer of the container and file
cabinets will be checked to make sure the equipment
has been secured.
REPAIRING SECURITY CONTAINERS
Lockouts or repair of any damage that affects the
integrity of a security filing cabinet approved for
storage of classified material will only be done by
appropriately cleared or continuously escorted
personnel.
A GSA-approved security file cabinet is
considered to have been restored to its original state
of security if all damage or altered parts are replaced
Figure 11-2.—Security Container Information form, Standard Form 700.
11-10
