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 This website is no longer updated and links to external websites and some internal pages may not work.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

Special Consolidated Checklist for the Toxicity Characteristic Revisions

This checklist consolidates the changes to the federal code addressed by the Toxicity Characteristic rule (55 Federal Register 11798, March 29, 1990, Revision Checklist 74) and subsequent revisions that occurred through December 31, 2002.

Toxicity Characteristics Revisions (Rich Text Format)(10 pp, 445 K)

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

Special Consolidated Checklist for the Toxicity Characteristic Revisions (PDF)(10 pp, 121 K)

Special Consolidated Checklist for the Toxicity Characteristic Revisions

Helpful Link