Perfluoroalkyl and Polyfluoroalkyl Substances; Provides for ratification of certain rules for cleanup target levels for PFAS compounds; authorizes DEP to update statewide cleanup target levels as necessary; requires such updates to be ratified by Legislature; requires department to adopt interim screening values until United States Environmental Protection Agency establishes final standards for additional PFAS compounds; provides eligibility requirements to apply for prospective purchaser protection; requires department to review applications for completeness within specified timeframe; provides that application is deemed approved; specifies timeframe in which liability protection is effective; provides liability protection for certain contaminations; authorizes department or other parties to pursue cost recovery; requires department to issue completion letters; specifies circumstances under which prospective purchaser forfeits liability protection; requires department & DOR to ensure eligibility to financial assistance for certain sites; prohibits fire service providers from using certain Class B firefighting foam after specified date except.