EPA is taking direct final action to conform the Emergency Planning and Community Right-to-Know Act (EPCRA) hazardous chemical inventory reporting regulations to the OSHA's Hazard Communication Standard amendments of 2012 and 2024. The EPCRA and its regulations rely on the OSHA's Hazard Communication Standard for the definition of a hazardous chemical and for the categories of health and physical hazards that must be reported under the hazardous chemical inventory regulations. This action will conform the terminology used and information that must be reported on the hazardous chemical inventory forms to the Hazard Communication Standard amendments. As a result, this action will also improve first responder and community safety, reduce discrepancies and confusion, prevent interpretation burdens on facilities when using (Material) Safety Data Sheets to complete annual hazardous chemical inventory reports, and improve clarity. This final rule is effective on 16 January 2026 without further notice, unless the EPA receives adverse comment by 17 December 2025. POC is Jennifer Barre, tele: (240) 644-4559; email: barre.jennifer@epa.gov. (Federal Register 17 November 2025 [Rule] Pages 51187-51205)