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Data / Federal rules / 2025-00731

N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) and its transformation product, 6PPD-quinone; Regulatory Investigation under the Toxic Substances Control Act (TSCA); Extension of the Comment Period

The Environmental Protection Agency published this proposed rule in the Federal Register on January 17, 2025. Comments closed on March 24, 2025.

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What the agency says

In the Federal Register of November 19, 2024, EPA issued an advance notice of proposed rulemaking soliciting public comment on and any additional information relevant to 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). EPA is soliciting that information, along with information about potential alternatives and regulatory options, to help inform the Agency's consideration of potential future regulatory actions under the Toxic Substances Control Act (TSCA). With this document, EPA is extending the comment period by 60 days, from January 21, 2025, to March 24, 2025.

Key facts

Document number
2025-00731
Type
Proposed rule
Action
Advance notice of proposed rulemaking, extension of the comment period
Agency
Environmental Protection Agency
Published
January 17, 2025
Comments due
March 24, 2025
Dates
The comment period for the document that published on November 19, 2024, at 89 FR 91299) (FRL-11628-01-OCSPP) is extended. Comments must be received on or before March 24, 2025.
Docket
EPA-HQ-OPPT-2024-0403; FRL-11628-02-OCSPP
Regulation ID (RIN)
2070-AL16
Code of Federal Regulations
40 CFR 751
Topics
Chemicals; Environmental protection; Exports; Hazardous substances; Imports; Reporting and recordkeeping requirements
Pages
2

The document on federalregister.gov PDF

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Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.