On September 30, 2024, the U.S. Environmental Protection Agency (EPA) issued a notice seeking comment on the manufacture of certain per- and polyfluoroalkyl substances (PFAS) during the fluorination of high-density polyethylene (HDPE), which is used to produce plastic containers used for various household consumer, commercial and industrial products. The notice marks the latest step in EPA’s attempt to regulate plastic fluorination and potential concurrent PFAS contamination under Section 6 of the Toxic Substances Control Act (TSCA).