2070-AL16 202504 Unified Agenda of Federal Regulatory and Deregulatory Actions 2070 Office of Chemical Safety and Pollution Prevention OCSPP 2000 Environmental Protection Agency EPA N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) and its transformation product, 6PPD-quinone; Regulatory Investigation under the Toxic Substances Control Act (TSCA)

In granting a petition filed under the Toxic Substances Control Act (TSCA) by Earthjustice on behalf of the Yurok Tribe, the Port Gamble S’Klallam Tribe, and the Puyallup Tribe of Indians, the Environmental Protection Agency (EPA or Agency) committed to pursuing an action to solicit and collect information from the public on the potential risks associated with N-(1,3-Dimethylbutyl)-N-phenyl-p-phenylenediamine (6PPD) (CASRN 793-24-8, DTXSID 9025114) and its transformation product, 6PPD-quinone (CASRN 2754428-18-5, DTXSID 301034849). On November 19, 2024, EPA issued an advance notice of proposed rulemaking (ANPRM) under section 6 of TSCA to gather information on the potential risks associated with 6PPD and 6PPD-quinone, along with information about potential alternatives and regulatory options to help inform a potential future regulatory action under TSCA. Public comments on the ANPRM were received through March 24, 2025. EPA is reviewing comments received on the ANPRM and is considering next steps.

]]> Substantive, Nonsignificant Previously Published in The Unified Agenda Long-Term Actions Undetermined Undetermined Other 40 CFR 751 15 U.S.C. 2605 Toxic Substances Control Act 15 U.S.C. 2620 Toxic Substances Control Act No ANPRM 11/19/2024 89 FR 91299 NPRM To Be Determined Undetermined Undetermined Undetermined Undetermined https://www.epa.gov/assessing-and-managing-chemicals-under-tsca 324 Petroleum and Coal Products Manufacturing 325 Chemical Manufacturing No No Wyn Zenni 2070 Office of Chemical Safety and Pollution Prevention OCSPP 202 564-6294 zenni.wyn@epa.gov 1200 Pennsylvania Avenue NW, Washington DC 22630 Robert Landolfi 2070 Office of Chemical Safety and Pollution Prevention OCSPP 202 343-9161 landolfi.robert@epa.gov 1200 Pennsylvania Ave NW, Washington DC 20460