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This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. 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 This website is no longer updated and links to external websites and some internal pages may not work.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 »

Laws & Regulations

Laws & Regulations

Regulations

Environmental rules are codified under Title 40 of the Code of Federal Regulations (40 CFR).

Compliance & Enforcement

EPA helps regulated entities meet federal requirements, and holds entities legally accountable for violations.

Guidance & Petitions

EPA issues guidance documents to further clarify and assist in implementation of regulations.