Creates a targeted CERCLA (Superfund) liability exemption for certain water and wastewater systems and similar entities for releases of a defined list of PFAS chemicals, provided the entity followed applicable laws and met specified conditions. The exemption covers activities such as permitted effluent discharges and routine biosolids management but does not protect entities that acted with gross negligence or willful misconduct.

The provision narrows who is protected (defined "protected entities"), lists the PFAS chemicals covered, and sets compliance and conduct conditions that must be met to qualify for the liability shield; it does not appropriate funds or change other regulatory requirements outside CERCLA liability for the named releases.