This bill establishes liability for facilities that handle perfluoroalkyl and polyfluoroalkyl substances (PFAS) in cases of groundwater contamination. It repeals and reenacts definitions related to PFAS, clarifying what constitutes perfluoroalkyl and polyfluoroalkyl substances, as well as the meaning of a fully fluorinated carbon atom and a manufacturing process. The bill specifies that any person who owns or operates a PFAS facility where PFAS concentrations in groundwater or surface water exceed 500 parts per trillion will be subject to strict liability under federal regulations, particularly concerning the closure and decommissioning of equipment and infrastructure associated with PFAS.

Additionally, the bill ensures that the provisions do not limit the applicability of existing laws regarding PFAS releases. The effective date of the act is set for 60 days after its passage. The key changes include the insertion of new definitions for PFAS and the establishment of strict liability for PFAS facilities, while repealing previous definitions and liability provisions.