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The U.S. Environmental Protection Agency (EPA) announced on June 14, 2023, that it is accepting public comments on candidates under consideration for selection as ad hoc reviewers to assist the Science Advisory Committee on Chemicals (SACC) with its review of the 2023 draft supplement to the 1,4-dioxane risk evaluation under the Toxic Substances Control Act (TSCA). EPA states that after it published the final risk evaluation for 1,4-dioxane in December 2020, it determined a supplement was...

The U.S. Environmental Protection Agency (EPA) announced on March 23, 2023, that it is seeking public nominations of scientific and technical experts that EPA can consider for service as ad hoc reviewers assisting the Science Advisory Committee on Chemicals (SACC) with the peer review of the “2023 Draft Supplement to the 1,4-Dioxane Risk Evaluation.” 88 Fed. Reg. 17566. EPA states that it will release the draft supplement for public review and comment in June 2023. EPA also plans to...

The U.S. Environmental Protection Agency (EPA) announced on November 20, 2020, the availability of a supplemental analysis to the draft risk evaluation of 1,4-dioxane under the Toxic Substances Control Act (TSCA).  85 Fed. Reg. 74341.  EPA states that it developed the supplemental analysis in response to public and peer review comments on the draft risk evaluation.  The supplemental analysis includes eight consumer uses, including surface cleaners, laundry/dishwashing detergents, and...

On June 28, 2019, the U.S. Environmental Protection Agency (EPA) released the draft risk evaluations for cyclic aliphatic bromide cluster (HBCD) and 1,4-dioxane, two of the first ten chemicals undergoing risk evaluation under the amended Toxic Substances Control Act (TSCA).  In its June 28, 2019, press release, EPA states in the draft risk evaluation for HBCD, it did not find unreasonable risk to the general population, consumers, workers, or the environment.  According to EPA, in...