2070-AK88 202504 Unified Agenda of Federal Regulatory and Deregulatory Actions 2070 Office of Chemical Safety and Pollution Prevention OCSPP 2000 Environmental Protection Agency EPA 1,4-Dioxane; Regulation Under the Toxic Substances Control Act (TSCA)

This rulemaking will address the unreasonable risk of injury to health from 1,4-dioxane. Section 6(a) of the Toxic Substances Control Act (TSCA) requires that EPA, when it determines in a TSCA risk evaluation that a chemical substance presents 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 unreasonable risk. EPA's final risk evaluation for 1,4-dioxane, describing 1,4-dioxane’s conditions of use and presenting EPA's determination of unreasonable risk, is in docket EPA-HQ-OPPT-2019-0238, with additional information in dockets EPA-HQ-OPPT-2016-0723 and EPA-HQ-OPPT-2022-0905.

]]> 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 01/07/2022 Statutory: TSCA section 6(c) Statutory Final 01/06/2023 Statutory: TSCA section 6(c). Yes NPRM 09/00/2026 . Undetermined Businesses Undetermined Undetermined No https://www.epa.gov/assessing-and-managing-chemicals-under-tsca/risk-management-14-dioxane 325 Chemical Manufacturing No Yes Cindy Wheeler 2070 Office of Chemical Safety and Pollution Prevention OCSPP 202 566-0484 wheeler.cindy@epa.gov 1200 Pennsylvania Avenue NW, Mail Code 7404M, Washington DC 20460 Joel Wolf 2070 Office of Chemical Safety and Pollution Prevention OCSPP 202 564-0432 wolf.joel@epa.gov 1200 Pennsylvania Avenue NW, Mail Code 7404M, Washington DC 20460