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Central Registry Toolbox Code Version(s): V7.1.1
Code Owner/Developer: National Institute of Standards and Technology (NIST).

Description: The Consolidated Model of Fire and Smoke Transport (CFAST) is a computer program that fire investigators, safety officials, engineers, architects and builders can use to simulate the impact of past or potential fires and smoke in a specific building environment. CFAST is a two-zone fire model used to predict the environment in a multi-compartment structure subjected to a fire. It calculates the time evolving distribution of smoke and fire gases and the temperature throughout a building during a user-specified fire.

In May 2004, the Department of Energy ( DOE) performed an evaluation of CFAST against DOE's safety software quality assurance criteria. A gap analysis report was generated that identifies the strengths and weaknesses based upon ASME NQA-1 criteria. Upon completion of this evaluation, CFAST V3.1.7 and V5.1.1 were listed in DOE's safety software Central Registry as a safety analysis toolbox codes.

In February 2017, DOE completed an evaluation of CFAST V7.1.1 against DOE's safety software quality assurance criteria and this version is listed as a toolbox code in the safety software Central Registry. The evaluation report is posted on the Safety Software Communication Forum (SSCF) at This is a password protected website for use by DOE and its contractors and must be accessed using your PIV card to register and then obtain access.

For more information on CFAST go to:

Reports and Publications Related to CFAST:

Note: Non-DOE issued reports and publications are not endorsed for technical content by DOE. These reports are provided on this web site as a courtesy to the DOE community.

DOE-EH- AnalysisSoftware Quality Assurance Improvement Plan: CFAST Gap Analysis - May 2004
DOE-EH- Guidance, CFAST Computer Code Application Guidance for Documented Safety Analysis - July 2004