UFC 4-023-03 Design of Buildings to Resist Progressive Collapse, with Change 4

This Unified Facilities Criteria (UFC) provides the design requirements necessary to reduce the potential of progressive collapse for new and existing facilities that experience localized structural damage through normally unforeseeable events.

Because buildings of three or more stories are subject to greater risk of progressive collapse, all buildings of three or more stories must comply with these standards, regardless of the standoff distance provided.

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