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Final Reports from the NIST World Trade Center Disaster Investigation

Final Reports from the NIST Investigation of the World Trade Center Disaster

Final Reports released in September 2005:

NIST NCSTAR 1: Federal Building and Fire Safety Investigation of the World Trade Center Disaster: Final Report of the National Construction Safety Team on the Collapses of the World Trade Center Tower

NIST NCSTAR 1-1: Design, Construction, and Maintenance of Structural and Life Safety Systems

NIST NCSTAR 1-2: Baseline Structural Performance and Aircraft Impact Damage Analysis of the World Trade Center Towers

NIST NCSTAR 1-3: Mechanical and Metallurgical Analysis of Structural Steel

NIST NCSTAR 1-4: Active Fire Protection Systems

NIST NCSTAR 1-5: Reconstruction of the Fires in the World Trade Center Towers

NIST NCSTAR 1-6: Structural Fire Response and Probable Collapse Sequence of the World Trade Center Towers

NIST NCSTAR 1-7: Occupant Behavior, Egress, and Emergency Communication

NIST NCSTAR 1-8: The Emergency Response Operations

Final Reports released in November 2008:

NIST NCSTAR 1A: Final Report on the Collapse of World Trade Center Building 7 *

* Errata for NIST NCSTAR 1A, NIST NCSTAR 1-9, and NIST NCSTAR 1-9A, Federal Building and Fire Safety Investigation of the World Trade Center Disaster: Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7 (January 2009, April 2012, and June 2012)

Created June 30, 2011, Updated June 27, 2012