On March 14, the Environmental Protection Agency announced proposed drinking water regulations for six PFAS species (PFOA, PFOS, PFNA, HFPO-DA, PFHxS, and PFBS. These regulations are slated to be finalized by the end of 2023. See the announcement here: https://www.epa.gov/sdwa/and-polyfluoroalkyl-substances-pfas