UFC 4-010-01
8 October 2003
Including change 1, 22 January 2007
B-3.4.1
Location. Where a new or existing building covered by these standards
must have a mail room, locate that mail room on the perimeter of the building. By
locating the mail room on the building perimeter there is an opportunity to modify it in
the future if a mail bomb threat is identified. Where mail rooms are located in the
interior of buildings, few retrofit options are available for mitigating the mail bomb threat.
B-3.4.2
Proximity. Locate mail rooms as far from heavily populated areas of the
building and critical infrastructure as possible. This measure will minimize injuries and
damage if a mail bomb detonates in the mail room. Further, it will reduce the potential
for wider dissemination of hazardous agents. These apply where the mail room is not
specifically designed to resist those threats.
B-3.4.3
and radiological agents introduced into mail rooms, ensure that mail rooms are well
sealed between their envelopes and other portions of the buildings in which they are
located. Ensure the mail room walls are of full height construction that fully extends and
is sealed to the undersides of the roofs, to the undersides of any floors above them, or
to hard ceilings (i.e. gypsum wallboard ceiling.) Sealing should include visible cracks,
the interface joints between walls and ceilings/roofs, and all wall and ceiling/roof
penetrations. Doors will have weather stripping on all four edges. Refer to the DoD
Security Engineering Facilities Design Manual for additional guidance.
B-3.5
Standard 14. Roof Access. For all new and existing inhabited buildings
covered by these standards, control access to roofs to minimize the possibility of
aggressors placing explosives or chemical, biological, or radiological agents there or
otherwise threatening building occupants or critical infrastructure.
B-3.5.1
New Buildings. For new buildings eliminate all external roof access by
providing access from internal stairways or ladders, such as in mechanical rooms.
B-3.5.2
Existing Buildings. For existing buildings, eliminate external access
where possible or secure external ladders or stairways with locked cages or similar
mechanisms.
Standard 15. Overhead Mounted Architectural Features. For all new
B-3.6
and existing buildings covered by these standards, ensure that overhead mounted
features weighing 14 kilograms (31 pounds) or more (excluding distributed systems
such as suspended ceilings that collectively exceed that weight) are mounted to
minimize the likelihood that they will fall and injure building occupants. Mount all such
systems so that they resist forces of 0.5 times the component weight in any horizontal
direction and 1.5 times the component weight in the downward direction. This standard
does not preclude the need to design architectural feature mountings for forces required
by other criteria such as seismic standards.
B-4
ELECTRICAL AND MECHANICAL DESIGN. Electrical and mechanical
design standards address limiting damage to critical infrastructure, protecting building
B-18
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