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 This website is no longer updated and links to external websites and some internal pages may not work.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

Hazardous Waste

Variance Assistance Document: Land Disposal Restrictions Treatability Variances and Determinations of Equivalent Treatment

The purpose of this document is to assist petitioners in submitting complete applications for either determination of equivalent treatment or a treatability variance (for process wastes only) with respect to hazardous waste land disposal restrictions. This document describes the two types of variances and discusses the situations to which they apply. It also discusses the required contents for each type of petition and provides an overview of EPA's petition review process.

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