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 This website is no longer updated and links to external websites and some internal pages may not work.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

Guides and Tutorials for TRI Tools

Wondering how to get started with the online Toxics Release Inventory (TRI) tools and applications? These resources will help you learn the basics.

collage showing calculator buttons, ruler, graphs, etc.

TRI Explorer

Pollution Prevention (P2) Search Tool

Other Envirofacts Search Tools