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 This website is no longer updated and links to external websites and some internal pages may not work.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

Polychlorinated Biphenyls (PCBs)

EPA's Response Letter to US Ecology Regarding Treatment of Waste Containing PCBs

EPA received a letter from US Ecology in November 2016 asking about the need for a Toxic Substances Control Act (TSCA) PCB approval for a facility that is conducting treatment on PCB-containing waste under the Resource Conservation and Recovery Act (RCRA), prior to land disposal. EPA responded to US Ecology clarifying the intersection between the PCB regulations and the RCRA regulations with regard to specific forms of treatment. Although the letter is specific to US Ecology's circumstances, we believe it will be helpful to many facilities that handle both RCRA and TSCA PCB wastes.

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