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TIMESTAMPS

Reports of the Federal Building and Fire
Investigation of the World Trade Center Disaster

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Complete Reports:
Federal Building and Fire Investigation of the World Trade Center Disaster

These are the final reports on the Investigation into the collapses of the World Trade Center Towers (WTC 1 and WTC 2) and into the collapse of World Trade Center Building 7 (WTC 7), conducted under the National Construction Safety team Act.  These reports summarize the reconstruction of the events on September 11, 2001 and how NIST and its contractors and collaborators developed this information.  The reports conclude recommendations for action in the areas of increased structural integrity, enhanced fire endurance of structures, new methods for fire resistant design of structures, enhanced active fire protection, improved building evacuation, improved emergency response, improved procedures and practices, and education and training. 

Extensive details are found in the 44 supporting reports, which provide technical details of all aspects of the investigation.

NIST NCSTAR 1 through 1-9A

• 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

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

  • NIST NCSTAR 1-9:Structural Fire Response and Probable Collapse Sequence of World Trade Center Building 7*

*List of January 2009 Text Changes to the NIST Reports of the Federal Building and Fire Investigation of the World Trade Center Disaster, NCSTAR 1A, NIST NCSTAR 1-9, and NIST NCSTAR 1-9A

 

 

	For additional information:WTC Contacts  | Building and Fire Research Laboratory | NIST
	Privacy Policy / Security Notice / Accessibility  | Disclaimer  | FOIA NIST is an agency of theU.S.Department of Commerce

Last updated:  January 2009

 

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