FEMA 403, World Trade Center Building Performance Study
This report presents observations, findings, and recommendations regarding the performance of buildings affected by the September 11 attacks on the WTC towers in New York City. The report also describes the structural and fire protection features of the affected buildings and their performance in response to the terrorist attacks. All PDF files have been made accessible for screen readers with the exception of Appendix D, which contains a spreadsheet that cannot be made accessible. A presentation is also supplied in PDF format.