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 This website is no longer updated and links to external websites and some internal pages may not work.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

TSCA Chemical Substance Inventory

Contact Us About the TSCA Chemical Substance Inventory

WARNING - DO NOT e-mail any Confidential Business Information (CBI) to EPA. EPA's e-mail system is NOT secured to protect CBI.

General TSCA Inquiries:

Email the Toxic Substances Control Act Hotline (tsca-hotline@epa.gov)

Call (202) 554-1404. The TSCA hotline operates Monday through Friday, from 8:30 a.m. to 5:00 p.m. Eastern time.  

FAX (202) 554-5603.

TSCA Inventory Inquiries:

Send e-mail to: tscainventory@epa.gov

Report an environmental violation

Report possible violations of environmental laws and regulations.

Mailing Address:
Tracy Williamson
U.S. EPA
Attention: Toxic Substances Control Act (TSCA) Chemical Substance Inventory
Mailcode: 7406M
1200 Pennsylvania Ave., N.W.
Washington, DC 20460
 

Please use the form below to send us comments or questions. Be sure to include your e-mail address if you’d like a response.

Please enter a name to address you by.
Please enter your comments.

TSCA Chemical Substance Inventory