EPA Is One Step Closer to Scaling Back PFAS MCLs

On May 1, 2026, the White House Office of Management and Budget (OMB) completed its interagency review and cleared two EPA proposed rules that would scale back the Biden-era PFAS National Primary Drinking Water Regulation (NPDWR). As we previously reported , the proposed rules would extend the compliance deadline for PFOA and PFOS maximum contaminant levels (MCLs) by two years and rescind the MCLs for PFNA, PFHxS, HFPO-DA (commonly known as GenX) and mixtures containing two or more of these compounds and PFBS. With OMB’s review concluded, the proposed rules are cleared for publication in the F