On September 28, 2023, the U.S. Environmental Protection Agency (EPA) finalized its rule for manufactures of per- and polyfluoroalkyl substances (PFAS), which requires that these manufacturers provide information about what chemicals and the amount that they produce. Effective November 13, 2023, persons that manufacture, have manufactured, or have imported PFAS in any year since January 1, 2011, will now be required to report a wide range of information of PFAS including chemical identity and structure, uses, production volumes, exposures, by-products and health and environmental effects. EPA is taking this action not only to fulfill its obligations under the Toxic Substances Control Act (TSCA) Section 8(a)(7), but also to address this legacy pollution that has been, and continues to be, endangering people across the nation.