1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-Hexamethylcyclopenta [g]-2-Benzopyran (HHCB) and Phthalic Anhydride Draft Risk Evaluations Under the Toxic Substances Control Act (TSCA); Notice of Availability and Request for Comment
Published Date: 4/14/2026
Notice
Summary
The EPA is checking if two chemicals, HHCB and phthalic anhydride, might be harmful to people or the environment. They want your thoughts on their early findings by June 15, 2026. This could affect companies using these chemicals and might lead to new safety rules or costs down the road.
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