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 This website is no longer updated and links to external websites and some internal pages may not work.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

Computational Toxicology Communities of Practice: Accelerating the Pace of Chemical Risk Assessment (APCRA) Through International Collaborative Case Studies slides

Slides for presentation given by Dr. Maureen Gwinn, Senior Science Advisor in the National Center for Computational Toxicology and Dr. Katie Paul-Friedman, Toxicologist in the National Center for Computational Toxicology for the 9/26/2019 Communities of Practice webinar on APCRA

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