PFAS National Drinking Water Standard Act of 2025

This bill makes the EPA’s national drinking water rule for PFAS officially part of federal law. It locks in the EPA’s final “PFAS National Primary Drinking Water Regulation” so the version in effect on June 25, 2024, has the full force of law across the country.

In plain terms, it means the federal PFAS drinking water standards are not just an agency rule—they are written into law and must be followed nationwide.

• Who is affected: People and communities that rely on drinking water systems; entities that must follow federal drinking water standards.
• What changes: The EPA’s final PFAS drinking water rule is “codified,” meaning the April 26, 2024 rule, as it stood on June 25, 2024, is now law.
• When: The law references the rule “as in effect on June 25, 2024”.