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 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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

EPA Center for Corporate Climate Leadership

Direct Emissions from Stationary Combustion Sources

This document is used to identify and estimate direct GHG emissions from stationary (non-transport) combustion of fossil fuels at a facility (e.g., boilers, turbines, process heat).

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.