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 This website is no longer updated and links to external websites and some internal pages may not work.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


Superfund Regulatory Compliance

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

Clarifies the EPA policy on ARARs with respect to attaining permits for activities at Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) sites.
EPA 540/F-93/009, OSWER 9355.7-03, NTIS: PB93-963325INZ, February 1992
Acts to regulate any remedial or removal action involving the off-site transfer of any CERCLA waste that is conducted by EPA, PRPs, or other federal agencies. This newer rule supersedes and replaces any previous rule or policy regarding off-site transport of waste.
Code of Federal Regulations -Title 40, Part 300.440, September 1993
This memorandum provides EPA policy related to the use of CERCLA ACLs in Superfund cleanups and supersedes any previous guidance on this matter. CERCLA section 121 provides authority to use ACLs under certain circumstances. This memorandum reiterates the statutory requirements and provides several factors to consider in evaluating whether use of CERCLA ACLs may be appropriate under site-specific circumstances.
OSWER Directive 9200.4-39, July 2005

Caution: Information in the following document cannot be applied to Superfund sites. This is because the CERCLA statute placed several limitations on the use of ACLs in Superfund remedies (see OSWER Directive 9200.4-39, above).

This document provides guidance to RCRA facility permit applicants and writers concerning the establishment of RCRA Alternate Concentration Limits (RCRA ACLs). The guidance lists 19 factors, or criteria, that are used to evaluate ACL requests.
OSWER Directive 9841.00-6C, EPA/530-SW-87-017. NTIS Order Numbers PB87206165 and PB88214267, July 1987

Superseded Documents

1 This rule supersedes both: "Procedures for Implementing Off-Site Response Actions" (Nov, 1987), OSWER Directive 9834.11 AND "The Off-Site Policy"