While not subject to RCRA requirements now, nine PFAS are proposed to be added to the list of hazardous constituents under RCRA. In February 2024, the USEPA proposed adding PFAS compounds to the list of hazardous constituents under RCRA; including PFOA, PFOS, Perfluorobutanesulfonic Acid (PFBS), GenX, Perfluorononanoic Acid (PFNA), Perfluorohexanesulfonic Acid (PFHxS), Perfluorodecanoic Acid (PFDA) Perfluorohexanoic Acid (PFHxA), and Perfluorobutanoic Acid (PFBA).
If PFAS is added as a hazardous constituent under RCRA in the future, it would impact waste generators, waste disposal facilities, as well as RCRA Corrective Action sites. Regulation as a hazardous waste under RCRA would create additional onsite management requirements, recordkeeping requirements, training, as well as additional costs for off-site transportation and disposal. This would have a large impact on the US disposal market if PFAS, including PFOA/PFOS compounds, were considered RCRA hazardous waste. US hazardous waste disposal capacity may not be able to meet the demand for new generators of hazardous waste.