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Download E-FAST

E-FAST 2014 was revised in March 2015 to address a bug found in the air model. Users should install the new file dated 3-5-2015.

E-FAST was updated in September 2014 to address compatibility issues with newer Windows operating systems and to reflect the latest exposure factors published in the EPA Exposure Factors Handbook (U.S. EPA, 2011).

To run E-FAST, you will need to download and run the installation file below:

E-FAST 2014 Installation File (27.4 MB)
E-FAST 2014 Documentation Manual (PDF file, 4.7 MB)
Selected references from the E-FAST 2014 Documentation Manual (PDF files)

Download And Install Instructions For E-FAST

The E-FAST installation program has been compressed into a single self-extracting executable file (27.4 MB in size). To install E-FAST on your system, complete the following instructions:

1. Download the E-FAST self-extracting executable file (EFAST2014Setup.2014.9.4.exe) to any directory of your choice.
2. Run EFAST2014Setup.2014.9.4.exe and follow the user prompts throughout the setup process.

Notes for Installing and Running the Model Newer operating systems have new levels of security which cause programs to require an administrator level to install and run. Because of this, E-FAST2014 may not run if a user simply double-clicks the icon. However, if the user right-clicks on the program icon, and selects "run as administrator," the program runs normally. This is a simple work-around that can be done when using the model on an independent computer. The user also has the option of setting up the program during installation to always run as an administrator. If the user is working on a PC that is part of a network or has restricted access, the network administrator would need to have the individual PCs set up so that the program folder has administrator rights.

Notify Me Of Future Updates:

If you want to be notified when future updates of the above download are available, please give your correct e-mail address. We will notify you at your e-mail address. A complete e-mail address includes your name and the domain name. Examples are Doe.John@myfavoritechemical.com, Doe.Jane@epa.gov.

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