An official website of the United States government.

We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Air Emissions Modeling

Air Emissions Modeling News:

Oct 1, 2019: The 2016v1 emissions modeling platform is now available! Find the 2016 alpha, beta, and v1 platforms, 2015 alpha platform, and the 2014v7.1 (NATA platform) here: 2014-2016 Version 7 Air Emissions Modeling Platforms

Air Emissions Modeling

Modeling

Resources