All Knowledge & Insights By Date

The U.S. Food and Drug Administration (FDA) announced on July 14, 2025, that it is extending the public comment period on its proposed method for ranking chemicals in the food supply by 30 days, to August 18, 2025. As reported in our July 8, 2025, blog item, FDA proposes to use Multi-Criteria Decision Analysis (MCDA) to determine a score for each chemical based on evaluating the information about a chemical against a pre-determined set of criteria. FDA notes that this method is similar in...

The U.S. Food and Drug Administration (FDA) announced on June 18, 2025, the release of its proposed method for ranking chemicals in the food supply. According to the document, the systematic post-market assessment of food chemicals consists of the following steps: signal detection, triage, prioritization, scoping, scientific assessment (safety, risk, and/or hazard), risk management review, and risk management action. FDA states that it will publish a full description of the process later in 2025...

The U.S. Environmental Protection Agency (EPA) is accepting comment on the next round of chemicals that it may prioritize for risk evaluation under the Toxic Substances Control Act (TSCA). EPA announced the list of 27 chemicals during webinars on September 30 and October 1, 2024. According to the slides from the webinar, the candidate chemicals are: 1-Hexadecanol2-Ethylhexyl 2,3,4,5-tetrabromobenzoate (TBB)4-tert-Octylphenol (4-(1,1,3,3-Tetramethylbutyl)-phenol)Benzenebis(2-Ethylhexyl) -...

The U.S. Environmental Protection Agency (EPA) will hold two virtual public meetings, on September 30 and October 1, 2024, to provide information regarding existing chemical pre-prioritization and prioritization activities under the Toxic Substances Control Act (TSCA). 89 Fed. Reg. 68894. EPA states in its August 28, 2024, notice that “[t]he purpose of prioritization is to designate a chemical substance as being either high priority for immediate further risk evaluation, or low priority, for...

As part of its implementation of the modernized Canadian Environmental Protection Act, 1999 (CEPA), on August 17, 2024, Health Canada published a Canada Gazette notice announcing the availability of its Science Approach Document -- Chemical Screening and Prioritization: Health Canada's Automated Workflow for Prioritization (HAWPr). The science approach document (SciAD) describes the scientific approach that Canada applied to more than 25,000 chemicals on the Domestic Substances List (DSL) to...

On January 31, 2024, the U.S. Environmental Protection Agency (EPA) announced that it will hold a webinar on February 20, 2024, at 1:00 - 4:00 p.m. (EST) on the five chemicals currently undergoing prioritization under the Toxic Substances Control Act (TSCA). EPA states that the webinar is open to all, “but EPA is particularly interested in learning more about how these chemicals are used and how people could potentially be exposed at different points in a chemical’s lifecycle. EPA is also...

On December 17, 2021, Canada published the Chemicals Management Plan implementation table for 2021-2024. Under the Canadian Environmental Protection Act, 1999 (CEPA), Canada plans to take the following actions regarding nanomaterials on the Domestic Substances List (DSL): prioritization of substances in commerce according to responses to the CEPA Section 71 Survey and screening assessment of high-priority nanomaterials on the DSL. The deliverables include: Publish a draft Framework for...

On December 10, 2021, the Biden Administration released its Fall 2021 Unified Agenda of Regulatory and Deregulatory Actions. According to the U.S. Environmental Protection Agency’s (EPA) rule list, the Office of Chemical Safety and Pollution Prevention (OCSPP) is working on the following rulemakings under the Toxic Substances Control Act (TSCA). Rulemakings at the proposed stage include: Tiered Data Reporting to Inform Prioritization, Risk Evaluation, and Risk Management Under TSCA...

The U.S. Environmental Protection Agency (EPA) met with the Environmental Defense Fund (EDF) on August 5, 2021, to clarify concepts from the July 27, 2021, tiered data reporting (TDR) webinar. EPA’s meeting summary states that EDF representatives requested clarification on the following issues discussed during the webinar: Whether EPA intends to scale back the Chemical Data Reporting (CDR) requirements with respect to the amount of information collected per chemical or to the number...

According to a memorandum posted in Docket ID EPA-HQ-OPPT-2021-0436, the U.S. Environmental Protection Agency (EPA) will not extend the comment period stemming from the July 27, 2021, public webinar on the development of a proposed rule under the Toxic Substances Control Act (TSCA) to implement a tiered data collection strategy intended to inform EPA’s prioritization, risk evaluation, and risk management activities for chemical substances or mixtures. As reported in our July 29,...