Effective September 12, 2023, the US Environmental Protection Agency (EPA) has added a new chemical category to its Toxic Release Inventory (TRI) program - Diisononyl Phthalates (DINP). EPA administers TRI as one of the distinct [programs created by the Emergency Planning and Community Right-To-Know Act of 1986 (EPCRA, also referred to as SARA Title III). This is the latest step in EPA’s review and updating of TRI, underway since President Biden assumed office. (I’ve discussed TRI several times, most recently HERE). The rest of this note discusses this latest change, which will require TRI reporting by subject facilities beginning with 2024 data.