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 affects companies using these chemicals and could lead to new safety rules that might impact costs or how these chemicals are used.
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