TSCAblog®

The U.S. Environmental Protection Agency (EPA) will hold a two-day training on its high throughput toxicokinetic (HTTK) R package as part of its New Approach Methods (NAM) Training Program: According to EPA, toxicokinetics (TK) provides a bridge between toxicity and exposure assessment by predicting tissue concentrations due to exposure. EPA notes that traditional TK methods can be resource intensive and require chemical-specific data. EPA states that its freely available HTTK R...

On August 22, 2023, the U.S. Environmental Protection Agency (EPA) published ChemExpo, a free, publicly available search and visualization tool for exploring chemical use data relevant to exposure assessment that has been curated from public documents. According to EPA, the interactive web application focuses on data collected by EPA about how chemicals are used in commerce and how they occur in consumer and industrial products. EPA notes that under the Toxic Substances Control Act...

The U.S. Environmental Protection Agency (EPA) announced on August 17, 2023, its National Enforcement and Compliance Initiatives (NECI) for 2024-2027, “including for the first time initiatives to mitigate climate change, address exposure to [per- and polyfluoroalkyl substances (PFAS)] contamination, and protect communities from cancer-causing coal ash.” To advance the Biden Administration’s commitment to protect disadvantaged communities, EPA states that it also will...

The U.S. Environmental Protection Agency (EPA) announced on August 17, 2023, the release of the first set of data collected under the fifth Unregulated Contaminant Monitoring Rule (UCMR 5). According to EPA, in the latest action to deliver on EPA’s PFAS Strategic Roadmap, UCMR 5 will provide new data that will improve its understanding of the frequency that 29 per- and polyfluoroalkyl substances (PFAS) and lithium are found in U.S. drinking water systems, and at what levels. EPA...

The U.S. Environmental Protection Agency’s (EPA) spring 2023 Unified Agenda, published on June 13, 2023, includes the following rulemakings concerning per- and polyfluoroalkyl substances (PFAS). Prerule and Proposed Rule Stage Final Rule Stage...

The U.S. Environmental Protection Agency’s (EPA) spring 2023 Unified Agenda, published on June 13, 2023, includes the following rulemakings under the Toxic Substances Control Act (TSCA) or the Toxics Release Inventory (TRI). Proposed Rule Stage Final Rule Stage...

As reported in our June 12, 2023, memorandum, the U.S. Environmental Protection Agency (EPA) published on June 7, 2023, a final rule with new and amended requirements concerning the assertion and treatment of confidential business information (CBI) claims for information reported to or otherwise obtained by EPA under the Toxic Substances Control Act (TSCA). EPA announced on August 10, 2023, that to ensure the “smoothest possible reporting experience” for TSCA submitters using...

The U.S. Environmental Protection Agency (EPA) is launching a webinar series in collaboration with the PETA Science Consortium International (PSCI), Institute for In Vitro Sciences (IIVS), and the California Department of Pesticide Regulation (CDPR). According to EPA, the quarterly series will focus on the use of new approach methodologies (NAM), or alternative methods to reduce vertebrate animal testing, for risk assessment within EPA and CDPR. The first webinar in the series will take place...

On August 1, 2023, Earthjustice filed a citizen petition under Section 21 of the Toxic Substances Control Act (TSCA) asking the U.S. Environmental Protection Agency (EPA) to establish regulations prohibiting the manufacturing, processing, use, and distribution of N-(1,3-Dimethylbutyl)-N’-phenyl-p-phenylenediamine (6PPD) (Chemical Abstracts Service Registry Number® (CAS RN®) 793-24-8) for and in tires. Earthjustice filed the petition on behalf of the Yurok Tribe, the Port Gamble...

On August 3, 2023, the Maine Department of Environmental Protection (MDEP) announced that it would accept stakeholder comment on its rule concept draft language that would prohibit manufacturers, suppliers, and distributors from offering for sale or for promotional purposes in Maine certain types of food packaging to which per- and poly-fluoroalkyl substances (PFAS) have been intentionally introduced. MDEP states that it has the authority to prohibit the sale of a food package to which...