UFC 3-580-10
14 July 2004
Including changes 12 April 2005
classified information must also meet the requirements of NSTISSAM
TEMPEST/2-95, Red/Black Installation Guidance. To be certified as a CAA the
area must meet the following physical requirements.
E-2.1
Walls, Floor and Roof. The walls, floor, and roof construction
must be of permanent construction materials; i.e. plaster, gypsum wallboard,
metal panels, hardboard, wood, plywood, or other materials offering resistance
to, and evidence of, unauthorized entry into the area. For new construction,
extend walls from true floor to true ceiling (structural floor to structural ceiling)
with permanent construction materials. In existing facilities, walls may also be
extended with 18-gauge expanded steel screen or equivalent wire mesh.
E-2.2
Doors. The access door to the area must be substantially
constructed of wood or metal. As a minimum, the door must have a high security
dead bolt lock with a 25-mm (1-inch) throw and a cylinder that meets the
requirements of Underwriters Laboratories Inc. UL 437 Standard for Key Locks,
7th edition dated 4 August 2000. As an alternative, a built-in GSA-approved
combination lock meeting Federal Specification FF-L-2740 can be used. The
hinge pins of outswing doors must be peened, brazed, or spot-welded to prevent
removal. When double doors are used, install an astragal on the active leaf of
the door. Doors other than the access door must be secured from the inside (for
example, by a dead bolt lock, panic dead bolt lock, or rigid wood or metal bar
which extends across the width of the door, or by any other means that will
prevent entry from the outside.
E-2.3
Windows. The area should not contain windows. When windows
are used they should be permanently secured to prevent opening. For new
construction, all windows that might reasonably afford visual observation of
classified activities within the facility must be made opaque. In existing facilities,
windows must be made opaque or equipped with blinds, drapes, or other
coverings. Windows that are less than 5.5 m (18 feet) above the ground
measured from the bottom of the window, or are easily accessible by means of
objects directly beneath the windows, must be constructed from or covered with
materials that provide protection from forced entry and must be protected by an
intrusion detection system. The protection provided to the windows need be no
stronger than the strength of the contiguous walls.
E-2.4
Openings. Utility openings such as ducts and vents must be kept
at less than man-passable, and openings larger than 6193.5 mm2 (96 square
inches) must be hardened per Military Handbook 1013/1A, Design Guidelines for
Physical Security of Facilities.
E-2.5
Restricted Access Area (RAA). An RAA is a physical area such
as a building or room where only personnel cleared to the level of the information
being processed are authorized unrestricted access, but does not meet all of the
physical security requirements of a CAA. Within an RAA, the PDS must be
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