2070-AL20 202504 Unified Agenda of Federal Regulatory and Deregulatory Actions 2070 Office of Chemical Safety and Pollution Prevention OCSPP 2000 Environmental Protection Agency EPA Tris(2-chloroethyl) Phosphate (TCEP); Regulation Under the Toxic Substances Control Act (TSCA)

This rulemaking will address the unreasonable risk of injury to health and the environment from tris(2-chloroethyl) phosphate (TCEP). Section 6 of the Toxic Substances Control Act (TSCA) requires that EPA, when it determines in a TSCA risk evaluation that a chemical presents an unreasonable risk of injury to health or the environment, apply one or more requirements under TSCA section 6(a) by rule to the extent necessary so the chemical substance no longer presents an unreasonable risk. EPA’s final risk evaluation for TCEP, describing TCEP’s conditions of use and presenting EPA’s determination of unreasonable risk, is in docket EPA-HQ-OPPT-2023-0265, with additional information in docket EPA-HQ-OPPT-2018-0476.

]]> Other Significant Previously Published in The Unified Agenda Long-Term Actions Undetermined Undetermined Regulatory 40 CFR 751 15 U.S.C. 2605 Toxic Substances Control Act Statutory NPRM 09/26/2025 TSCA section 6(c) Statutory Final 09/26/2026 TSCA section 6(c) No NPRM 10/00/2026 Final Rule 10/00/2027 Undetermined Federal Yes No https://www.epa.gov/assessing-and-managing-chemicals-under-tsca/risk-evaluation-tris2-chloroethyl-phosphate-tcep 325 Chemical Manufacturing No Yes Chloe O'Haire 2070 Office of Chemical Safety and Pollution Prevention OCSPP 202 564-6785 ohaire.chloe@epa.gov 1200 Pennsylvania Avenue NW, Washington DC 20460 Ana Corado 2070 Office of Chemical Safety and Pollution Prevention OCSPP 202 564-0140 corado.ana@epa.gov 1200 Pennsylvania Avenue NW, Mail Code 7404M, Washington DC 20460