On January 5, 2026, the U.S. Environmental Protection Agency (EPA) invited nominations for scientific experts for appointment to the Science Advisory Committee on Chemicals (SACC), established pursuant to the Toxic Substances Control Act (TSCA). 91 Fed. Reg. 263. EPA also requested nominations of scientific and technical experts whom EPA can consider for service as ad hoc peer reviewers assisting SACC. 91 Fed. Reg. 275. EPA states in a December 31, 2025, press release that for 2026, it is...
Archives
November 13, 2025
EPA Reschedules November 18, 2025, SACC Preparatory Meeting for D4 Risk Evaluation and Extends Comment Period
On November 10, 2025, the U.S. Environmental Protection Agency (EPA) announced that it is rescheduling the November 18, 2025, preparatory meeting for the Science Advisory Committee on Chemicals (SACC). The meeting to consider the scope and clarity of the draft charge questions for SACC’s peer review of EPA’s draft risk evaluation for octamethylcyclotetrasiloxane (D4) will now be held virtually on December 1, 2025. Registration for the meeting is open. To present oral comments during the...
March 12, 2025
EPA Reschedules SACC Meetings to Consider 1,3-Butadiene Draft Risk Evaluation, Will Issue Supplement
The U.S. Environmental Protection Agency (EPA) announced on March 11, 2025, the rescheduled meeting dates of the Science Advisory Committee on Chemicals (SACC) that had been previously scheduled for February 2025 to consider and review the draft risk evaluation for 1,3-butadiene. 90 Fed. Reg. 11737. The rescheduled preparatory meeting for the SACC to consider the scope and clarity of the revised draft charge questions for the peer review will now be held on March 25, 2025, and the rescheduled...
The U.S. Environmental Protection Agency (EPA) announced on September 3, 2024, the release of the draft risk evaluation for diisononyl phthalate (DINP) under the Toxic Substances Control Act (TSCA) for public comment. 89 Fed. Reg. 71270. EPA states in its August 30, 2024, press release that it preliminarily determined that two industrial uses and one consumer use “significantly contribute to the unreasonable risk of DINP out of the 45 uses evaluated.” EPA preliminarily determined that DINP...
The U.S. Environmental Protection Agency (EPA) called for nominations on September 18, 2024, of scientific and technical experts that EPA can consider for service as ad hoc peer reviewers to assist the Science Advisory Committee on Chemicals (SACC) with the peer review of the draft risk evaluation for 1,3-butadiene conducted under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 76467. EPA states that it will submit the draft risk evaluation of 1,3-butadiene and associated supporting...
The U.S. Environmental Protection Agency (EPA) announced on June 13, 2024, the change in the peer review mechanism from the letter peer review to a Science Advisory Committee on Chemicals (SACC) peer review; the addition of the draft human health hazard assessment for 1,2-dichloroethane for peer review; and the availability of and solicitation of comment on the list of candidates under consideration for selection as ad hoc peer reviewers that will assist SACC with its peer review of EPA’s...
March 11, 2024
EPA Seeks Nominations for Ad Hoc Reviewers to Assist SACC with Peer Reviewing DIDP and DINP
On February 29, 2024, the U.S. Environmental Protection Agency (EPA) requested public nominations of scientific and technical experts for service as ad hoc reviewers assisting the Science Advisory Committee on Chemicals (SACC) with the peer review of the Agency’s evaluation of the risks from di-isodecyl phthalate (DIDP) and di-isononyl phthalate (DINP) being conducted to inform risk management decisions under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 14836. EPA states that it is...
The U.S. Environmental Protection Agency (EPA) announced on February 28, 2024, that it is seeking public comment on the candidates under consideration for selection as ad hoc peer reviewers to assist the Science Advisory Committee on Chemicals (SACC) with its peer review of the Agency’s evaluation of the risks from formaldehyde being conducted to inform risk management decisions under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 14648. The SACC peer review will take place during a...
The U.S. Environmental Protection Agency (EPA) announced on January 31, 2024, a 30-day public comment period on candidates currently under consideration for membership on the Toxic Substances Control Act (TSCA) Science Advisory Committee on Chemicals (SACC). This public comment period follows a November 2023 call for nominations of scientific experts to be considered for appointment to the SACC. EPA notes that there are currently 18 SACC members, with eight membership terms that will soon...
June 15, 2023
EPA Accepting Comments on Candidates to Be Ad Hoc Reviewers for Draft Supplement to 1,4-Dioxane Risk Evaluation under TSCA
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...