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 This website is no longer updated and links to external websites and some internal pages may not work.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

Federal Register Notice: Final Rule on Standards for Owners and Operators of Hazardous Waste Treatment, Storage and Disposal Facilities

Under authority of the Resource Conservation and Recovery Act (RCRA), EPA promulgated a rule that requires the use of a paint filter test to determine the absence or presence of free liquids in either a containerized or bulk waste. This rule applies to owners and operators of hazardous waste landfills regulated under Title 40 of the Code of Federal Regulations (CFR), Parts 264 and 265. It is based on public comments received on a proposed paint filter test and laboratory testing of six test protocols designed to detect the presence of free liquids. The rule includes conforming amendments to several other sections of the regulations.

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