The National Institute of Standards and Technology (NIST) in April reported that the first 19 proposed changes to model building codes (used as templates for codes legislated, implemented and enforced by state and local jurisdictions) based upon and consistent with recommendations made by NIST in its final World Trade Center (WTC) report were submitted to the International Code Council (ICC).

When the NIST released the report in Oct. 2005 from its technical investigation of the fires and collapses of the WTC towers on Sept. 11, 2001, included were 30 recommendations for improving building and occupant safety derived from the findings.

The 19 proposed changes-submitted by building code experts associated with two ICC committees, the National Institute of Building Sciences and the U.S. General Services Administration-address areas such as increased resistance to building collapse from fire and other incidents, use of spray-applied fire resistive materials (commonly known as "fireproofing"