EPA Extends Comment Period for N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) Investigation

Summary

The US Environmental Protection Agency (EPA) has extended the comment period for its investigation into N-(1,3-Dimethylbutyl)-N′-phenyl-p-phenylenediamine (6PPD) and its transformation product, 6PPD-quinone, under the Toxic Substances Control Act (TSCA). The comment period has been extended by 60 days, from January 21, 2025, to March 24, 2025.

Original source language: Federal Register — Environmental Protection AgencyOpen original release →

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