An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Air Emissions Modeling

2011 Version 6.2 Platform

The 2011v6.2 platform is based on the 2011NEI version 2, includes projected future years of 2017 and 2025, and supported the Final 2015 National Ambient Air Quality Standards for Ozone along with analyses and a rulemaking proposal related to interstate transport for the 2008 Ozone National Ambient Air Quality Standards.