What to know about Call Center?

In response to FEMA's concerns, the Commerce Department’s National Institute of Standards and Technology (NIST) conducted a three-year, US$24 million investigation into the structural failure and progressive collapse of several WTC complex structures, including 7 World Trade Center. The study included not only in-house technical expertise, but also drew upon the knowledge of several outside private institutions, including the Structural Engineering Institute of the American Society of Civil Engineers (SEI/ASCE), the Society of Fire Protection Engineers (SFPE), the National Fire Protection Association (NFPA), the American Institute of Steel Construction (AISC), the Council on Tall Buildings and Urban Habitat (CTBUH), and the Structural Engineers Association of New York (SEAoNY).