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 This website is no longer updated and links to external websites and some internal pages may not work.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

Toxics Release Inventory (TRI) Program

TRI Chemical List For Reporting Year 2011 (including Toxic Chemical Categories)

Table listing the chemicals and chemical categories subject to TRI reporting for RY 2011. Includes de minimis and qualifier information.

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