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 This website is no longer updated and links to external websites and some internal pages may not work.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

Safety Data Sheets with New OSHA Physical and Health Hazard Classes and Tier II Reporting

This document is intended to assist facility owners and operators in complying with Tier II reporting requirements. It includes a cross-walk between the old and new hazard categories, as well as answers to questions that EPA received from the regulated community and states.

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