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GW Law Library
Research Guides

U.S. Environmental Law

A basic guide to U.S. environmental law research.

Proposed & Final Regulations

Codified (Current) Regulations

Regulatory History

Policy/Guidance

Policy documents represent EPA's official interpretation or view of specific issues.  

Guidance documents are published to further clarify regulations and to assist in the implementation of environmental regulations. It can be difficult to locate guidance that has been amended or revoked.

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