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 This website is no longer updated and links to external websites and some internal pages may not work.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

Toxics Release Inventory (TRI) Program

Find, Understand and Use TRI

What's Happening at a TRI Facility?

Get context for the data facilities submit on TRI reporting forms, including definitions and examples.

Learn How People are Using TRI Data

See examples of individuals and groups using TRI.

Understand the Basics of Risk

Many factors influence whether or to what extent a person has been exposed to chemical releases.

Read Analyses of TRI Data

Each year, EPA analyzes the most recent TRI data and publishes a detailed report.

Connect to Other Resources

Materials from other EPA programs and government agencies can help you learn more about toxic chemicals.