UFC 3-600-01
26 September 2006
1-3.2.4
Conversion of Use/Change of Occupancy.
1-3.2.4.1
When any portion of an uninhabited building is modified from its
current use to that of an inhabited building, billeting, or a primary gathering
building, as defined by UFC 4-010-01, for one year or more, the building must
meet the requirements for new construction.
Note: Examples would include a warehouse (uninhabited) being converted to
administrative (inhabited) use; an inhabited administrative building being
converted to a primary gathering building or billeting; or an non-compliant primary
gathering building/billeting being altered, modernized, modified, rehabilitated, or
renovated and converted to billeting/primary gathering building. Definitions of
inhabited, uninhabited, primary gather building and billeting are found in UFC 4-
010-01 DoD Minimum Antiterrorism Standards For Buildings.
1-3.2.4.2
When any portion of a building is modified from its current use to
that of a mission essential building for one year or more, the building must meet
the requirements for new construction.
Note: Examples would include a warehouse being converted to an aircraft
hangar.
1-3.2.4.3
When any portion of a building is modified from its current use to
any other occupancy use for two years or more, the building must meet the
requirements for new construction. Changing groups of occupants within the
occupancy classification does not constitute an occupancy change.
Note: An example of modifying from one occupancy to another would include an
office building converted to mercantile. An example of changing groups of
occupants would include an installation personnel function occupying the office
space formally used by an installation contracting function.
1-3.3
Absence of Criteria
When a specific application is not covered by the criteria cited in this UFC, follow
national building codes, recognized industry standards, and standard engineering
practices. In the absence of such technical information, contact the DOD
component authority having jurisdiction (refer to paragraph 1-4.6).
1-3.4
Performance-Based Fire Safety Design.
It is permissible that performance-based fire safety design methods be applied to
the renovation, restoration, remodeling or modernization of existing facilities to
address the evaluation of a subsystem, system, or complete building when it is
not possible to meet the provided prescriptive requirements for new construction.
New facilities for which established prescriptive criteria exist, must not be
permitted to use performance-based fire and life safety design methods. The
use of performance-based fire safety design methods must only be permitted
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