The National Institute of Standards and Technology released the findings and recommendations from its building and fire safety investigation of the collapse of World Trade Center Building 7 (WTC 7). WTC 7 was a 47-story building that fell nearly seven hours after the World Trade Center towers collapsed following the terrorist attacks of September 11, 2001. The report presents the probable collapse sequence for the building and provides recommendations for improving building and fire safety in other buildings similar to WTC 7. Mr. Sivaraj Shyam-Sunder, the lead investigator for the federal building and fire safety investigation of the World Trade Center disaster, presented the report and responded to questions from the reporters in the audience.