The EPA has classified PFOA and PFOS as hazardous substances under the Superfund law, allowing for polluter-funded cleanups.

Companies may face billions in liabilities for the manufacture or usage of these chemicals.

The EPA mandates water utilities to cut PFAS levels in drinking water to near-zero.

Seven additional PFAS chemicals are proposed to be designated as hazardous waste.

EPA Administrator Michael S. Regan highlights the move as a measure to protect families' health and facilitate more efficient cleanups.

The Sierra Club advocates for regulating PFAS as a class to more effectively address their environmental and health impacts.