February 22 brought another significant development in the world of PFAS, as EPA finalized its decision to regulate levels of PFOS and PFOA in drinking water under the Safe Drinking Water Act (SDWA). To date, EPA has only issued non-enforceable health advisory guidelines, but this new determination means EPA will initiate the scientific review process to propose Maximum Contaminant Levels (MCLs) and Maximum Contaminant Level Goals (MCLGs) for PFOA and PFOS within two years.