EPA is advancing its review of four chemicals under the Toxic Substances Control Act (TSCA) – 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g]-2-benzopyran (HHCB), phthalic anhydride, o-dichlorobenzene (oDCB) and p-dichlorobenzene (pDCB)—by releasing draft documents related to the review of these chemicals and convening a peer review meeting of the Science Advisory Committee on Chemicals (SACC). These chemicals are found in fragrances, paints, coatings, cleaners and industrial processes, meaning decisions in these cases can directly affect the air we breathe at work and at home.
Draft risk evaluations are now available for public comment and independent scientific peer review.
EPA will hold a preparatory virtual public meeting on May 26, 2026, for the SACC and the public to consider and ask questions. On June 8-12, 2026, EPA will hold a virtual public meeting of the SACC to review the draft risk evaluations. EPA will publish registration links for the meetings soon on the SACC website.
The draft risk evaluations, draft hazard assessments, related supporting materials, and draft charge questions will be available in the peer review docket EPA-HQ-OPPT-2026-1189 at www.regulations.gov. To have your comments and questions considered by the SACC they must be submitted to the peer review docket no later than 45 days after publication of the Federal Register Notice.
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