Primary gathering buildings, which are inhabited buildings routinely occupied by
50 or more personnel. All areas of such a facility that meet the population density
requirement for an inhabited building must be treated as primary gathering areas.
Billeting, which are buildings that routinely house 11 or more unaccompanied
personnel are routinely housed.
High‐occupancy family housing, which are residential buildings with 13 or more
units.
Required security measures, such as allowable standoff distances, are different for
facilities contained within a controlled perimeter than facilities within an open
installation. As defined by UFC 4‐010‐01, a controlled perimeter is a physical boundary
that possesses sufficient means to channel vehicles to the access control point and where
there is a demonstrated capability to search for and detect explosives.
Department of Housing and Urban Development Noise
Regulation
The United States Department of Housing and Urban Development (HUD) has instituted
policies through section 24 Code of Federal Regulations (CFR) Part 51 that promote the
creation of controls and standards by state and local governments for community noise
abatement. The focus of these regulations is to reduce noise levels within residential
developments that are funded by HUD. Included among the various policies are:
1. A requirement that noise exposure and sources of noise be given adequate
consideration as an integral part of urban environments in connection with all HUD
programs, which provide financial support to planning;
2. A withholding of HUD assistance for the construction of new dwelling units on sites
which have, or are projected to have, unacceptable noise exposure, are in runway
Clear Zones, or constitute incompatible uses in Accident Potential Zones;
3. Encouragement of modernization efforts for existing buildings in noise
environments; and
4. Grants and allowances to state and local governments to provide acoustical privacy
in multifamily dwellings through building design and acoustical treatment.
Generally, external noise exposure within Noise Zone 3 (as identified in an installation’s
Airfield Installation Compatible Use Zone (AICUZ) Study) is considered unacceptable,
without exception, and exposure within Noise Zone 2 is normally unacceptable, with
respect to new developments. Department of Housing and Urban Development funds
Background Report
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