EPA proposes federal exemption framework to extend PFOA/PFOS MCL compliance deadline from April 26, 2029 to April 26, 2031; hearing set for July 7, 2026

EPA issued a proposed rule that would keep the PFOA and PFOS MCLs but create a federal exemption approach allowing eligible public water systems to request a two-year extension of the compliance deadline from April 26, 2029 to April 26, 2031. EPA also announced a virtual public hearing for July 7, 2026 with pre-registration due by July 1, 2026. Drinking water compliance programs should evaluate eligibility and planning impacts, as this proposal would change key compliance timing assumptions for PFOA/PFOS treatment and related capital planning if finalized.