PFAS National Drinking Water Standard Act of 2025

This bill makes the Environmental Protection Agency's existing April 2024 rule on PFAS limits in drinking water legally binding. It codifies the EPA's "PFAS National Primary Drinking Water Regulation" (89 Fed. Reg. 32532), which sets enforceable limits for specific PFAS chemicals in public water systems. The rule directly affects municipal water providers and communities relying on public water sources by requiring them to meet these new contaminant standards. The bill does not create new standards but formally adopts the EPA's previously issued rule into law.