U.S. Environmental Protection Agency ("EPA") has designated PFOA and PFOS as "Hazardous Substances" under CERCLA, marking the agency's first use of Section 102(a) authority and signaling potential widespread industry impact due to the chemicals' historical and ongoing use.
EPA took final action to amend the Standards and Practices for All Appropriate Inquiries ("AAI Rule"), which is widely used in real property due diligence investigations.