Federal Register #EPAHQOPPT20180430 and EPAHQOPPT20180459

EPA Seeks Public Comment on Draft Risk Evaluations for HHCB and Phthalic Anhydride

This notice announces the EPA's request for public comment on draft risk evaluations for two chemicals under the Toxic Substances Control Act (TSCA): - Government Buyer: - Environmental Protection Agency (EPA), Office of Chemical Safety and Pollution Prevention - OEMs and Vendors: - No commercial OEMs or vendors are being procured; the focus is on the chemical substances HHCB and phthalic anhydride - Products/Services Requested: - No products or services are being procured or awarded - The EPA is seeking scientific and technical feedback on the draft risk evaluations for: - 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran (HHCB) - Phthalic anhydride - Unique or Notable Requirements: - The EPA is specifically requesting input on the scientific and technical aspects of the risk assessments, including use cases and exposure scenarios - The draft evaluation finds HHCB does not pose unreasonable risk, while phthalic anhydride may pose unreasonable risk to human health - Stakeholders from industry, academia, and the public are encouraged to comment - Additional Context: - No procurement, contract, or award is associated with this notice - The only OEMs referenced are the chemical substances themselves - A separate Export-Import Bank notice regarding Boeing aircraft exports is mentioned but not related to this EPA request

Description

The Environmental Protection Agency (EPA) has announced the availability of draft risk evaluations for two chemical substances: 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran (HHCB) and phthalic anhydride. These evaluations assess whether these chemicals pose an unreasonable risk to human health or the environment under their conditions of use. The EPA is seeking public comments on these draft evaluations by June 15, 2026, to inform the final risk determinations.

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