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Water: Anti-Degradation

Guidance & Policy Memos

Many documents on this web page were included to provide an historical context for current antidegradation policies and their implementation. However, all of these documents do not necessarily reflect the latest policies, procedures, or practices for applying antidegradation concepts of the Clean Water Act. Additionally, while the guidance below contains useful recommendations, they are not requirements and not binding. Your regional water quality standards coordinator can help determine what policies, guidance, and other documents are appropriate for developing antidegradation policies and implementation procedures for your state, tribe, or territory.


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EPA Policy Memos


EPA HQ Guidance

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EPA Regional Guidance

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