EPA Closes Out Last Pending TSCA Section 21 Petition Seeking Rule Changes

November 14, 2025
EPA has quietly closed out the last of a batch of TSCA section 21 “citizen’s petitions” that the agency received last spring, where various industry trade groups were seeking changes to a handful of Biden-era TSCA rules but then withdrew them without explanation. Most recently, EPA posted on its website Nov. 7 -- after Inside TSCA ’s query -- an Oct. 16 letter confirming that the American Chemistry Council (ACC) had withdrawn its May 29 Toxic Substances Control Act (TSCA)...


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