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All Appropriate Inquiries

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General Information

Fact Sheet on EPA Brownfields Grants, CERCLA Liability, and All Appropriate Inquiries (PDF) (3 pp, 191K)
Publication Number: EPA 560-F-09-026
April 2009

EPA Recognizes Two ASTM Standards as Compliant with All Appropriate Inquiries

EPA now recognizes both ASTM International's E1527-05 "Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process" and ASTM E2247-08 "Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process for Forestland and Rural Property" as compliant with the All Appropriate Inquiries Regulation. Either of these ASTM International Phase I standards may be used to satisfy the statutory requirements for conducting all appropriate inquiries under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA).

EPA Published Final Rule on All Appropriate Inquiries

The Environmental Protection Agency published a final rule setting federal standards for the conduct of all appropriate inquiries. The rule was published in the Federal Register on November 1, 2005. The final rule and preamble is available below.

The final rule establishes specific regulatory requirements for conducting all appropriate inquiries into the previous ownership, uses, and environmental conditions of a property for the purposes of qualifying for certain landowner liability protections under CERCLA. The final rule went into effect on November 1, 2006, one year following the date of publication.

As of November 1, 2006, parties must comply with the requirements of the All Appropriate Inquiries Final Rule, or follow the standards set forth in the ASTM E1527-05 Phase I Environmental Site Assessment Process, to satisfy the statutory requirements for conducting all appropriate inquiries. All appropriate inquiries must be conducted in compliance with either of these standards to obtain protection from potential liability under CERCLA as an innocent landowner, a contiguous property owner, or a bona fide prospective purchaser.

Response to Public Comments

The preamble to the final rule setting federal standards for the conduct of all appropriate inquiries includes a summary of the public comments received in response to the proposed rule, which was published on August 26, 2004 (see below for information on the proposed rule). The preamble to the final rule also includes a summary of EPA's responses to many of the issues raised in public comments. Specific responses to individual comments are provided in the document "Response to Comment Document," October 2005.

Comparison of Final Rule to Interim Standard (ASTM E1527-00)

The new final regulation is not significantly different from the interim standard established by Congress in the Brownfields Amendments to CERCLA. The interim standard was the ASTM E1527-00 Phase I Environmental Site Assessment Process. The final rule differs in such areas as the definition of environmental professional, certain interviewing requirements, and the documentation of data gaps that may affect an environmental professional's ability to render an opinion regarding the environmental conditions of a property. A comparison of the requirements established in the final rule and the requirements of the interim standard are provided in a document titled "Comparison of the Final All Appropriate Inquiries Standard and the ASTM E1527-00 Environmental Site Assessment Standard."

Background
The Small Business Liability Relief and Revitalization Act (the Brownfields Amendments) clarifies CERCLA liability provisions for certain landowners and potential property owners. The Brownfields Amendments provide liability protections for certain property owners, if the property owners comply with specific provisions outlined in the statute, including conducting all appropriate inquiries into present and past uses of the property and the potential presence of environmental contamination on the property. The Brownfields Amendments amend Section 101(35)(B) of CERCLA and require EPA to promulgate regulations that establish federal standards and practices for conducting all appropriate inquiries. The all appropriate inquiries standards and practices are relevant to:

All Appropriate Inquiries Statutory Language from the Small Business Liability Relief and Revitalization Act

All Appropriate Inquiries Criteria Analysis/Comparison to State, Federal, and Commercial Assessment Approaches

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