EPA is proposing to add over 100 PFAS chemicals to the Toxic Release Inventory (TRI) reporting obligations. Various adverse health outcomes linked to PFAS exposure include immune system effects, thyroid effects, liver effects, and developmental effects. Since there is no single definition of PFAS, different regulators may use different definitions of what constitutes a regulated PFAS. EPA uses a categorical approach for regulating some PFAS. These categories are based on structural similarities and shared toxicological properties. Industry currently subject to TRI reporting argues that eliminating the exemption would impose unnecessary compliance burdens, particularly for small businesses, without providing significant benefits. Federal and state agencies are moving forward with additional regulations addressing chemicals known as Per- and Polyfluoroalkyl Substances (PFAS).
