Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
WTC Investigation Meetings and Presentations
Public/Media Briefings and Meetings
November 20, 2008 – WTC 7 Final Reports Released
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
August 26, 2008 – WTC 7 Technical Briefing
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
August 21, 2008 – WTC 7 Press Briefing
- Statement by Dr. S. Shyam Sunder, Lead Investigator (pdf)
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
September 8, 2006 – New York City Council Joint Meeting
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
October 19, 2005 – 4th Annual Congress on Infrastructure Security for the Built Environment
- Presentation by Dr. James Hill, Building and Fire Research Laboratory Director (pdf)
June 23, 2005 – Public/Media Briefing
- Remarks by Dr. Dr. Hratch Semerjian, Acting NIST Director (pdf)
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
September 13–15, 2005 – Technical Conference
- Agenda (pdf)
- Presentations
April 5, 2005 – Public Briefing
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
- Presentation – Introduction to NIST's World Trade Center Investigation (pdf)
- Presentation – Analysis of Collapse of WTC 1 and WTC 2 (pdf)
- Presentation – Collapse Sequence of WTC 1 and WTC 2 (pdf)
- Presentation – Collapse of WTC 7 (pdf)
- Presentation – Analysis of WTC Towers' Baseline Performance (pdf)
- Presentation – Life Safety – Evacuation, Emergency Response, Active Systems (pdf)
- Presentation – Building and Fire Safety Procedures and Practices (pdf)
- Presentation – Approach to Recommendations (pdf)
June 8, 2005 – NFPA World Safety Conference & Exposition, Las Vegas, NV
- Presentation by Dr. S. Shyam Sunder and Dr. William L. Grosshandler, Lead Investigator and Investigator (pdf)
September 9, 2004 – Chicago Committee on High–Rise Buildings
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
February 12, 2004 – Public Meeting
- Agenda (pdf)
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
- Full Transcript (pdf)
October 23, 2003 – Workshop to Review Reference Structural Models of the WTC Towers Developed by LERA
- Minutes (pdf)
September 17, 2003 – Media Briefing
- Remarks by Dr. Jack Snell, Director, Building and Fire Research Laboratory (pdf)
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
- Presentation by Jason Averill, Investigator (pdf)
- Presentation by J.R. Lawson, Investigator (pdf)
May 7, 2003 – News Briefing
- Presentation by Dr. Arden L. Bement, Jr., NIST Director (pdf)
- Presentation by Dr. S. Shyam Sunder, Lead Investigator (pdf)
April 8, 2003 – Public Briefing
- Presentation by Jason Averill, Investigator (pdf)
December 9, 2002 – News Briefing
- Remarks by Dr. Arden L. Bement, Jr., NIST Director (pdf)
- Remarks by Dr. S. Shyam Sunder, Lead Investigator (pdf)
August 21, 2002 – News Briefing
- Remarks by Dr. Arden L. Bement, Jr., NIST Director (pdf)
- Remarks by Dr. S. Shyam Sunder, Lead Investigator (pdf)
June 24, 2002 – Public Meeting
- Agenda and recorded webcast
- Statement – NIST Open Meeting Scope of Interviews / Key Points for Pending NIST Investigation, Monica Gabrielle, Co-Chairperson, Skyscraper Safety Campaign (pdf)