By Lynn L. Bergeson and Carla N. Hutton
 
The U.S. Environmental Protection Agency (EPA) has opened registration for the second of its two-part webinar series on EPA’s new standardized process to assess risk and apply mitigation measures, as appropriate, for mixed metal oxides (MMO), including new and modified cathode active materials (CAM). The webinar, which will be held March 30, 2023, will give an in-depth look into the standardized risk assessment approach and present various case scenarios and a decision tree for identifying potential hazards and risks. The kickoff webinar, held in November 2022, provided a broad overview of the approach and answered stakeholder questions. A summary of the first webinar is available in our November 23, 2022, memorandum.
 
Under the Toxic Substances Control Act (TSCA), EPA reviews all new chemical substances before they enter the marketplace to ensure they do not present unreasonable risk to human health or the environment. As reported in our October 11, 2022, memorandum, EPA announced an innovative effort to help make its review of new MMOs, including new and modified CAMs, more efficient. According to EPA, MMOs have many electrical applications in batteries and uses as catalysts, adsorbents, and in ceramics. Notably, MMOs, including CAMs, are a key component in lithium-ion batteries used in electric vehicles, making them a vital part of clean energy sectors.

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By Lynn L. Bergeson and Carla N. Hutton
 
The U.S. Environmental Protection Agency (EPA) announced on November 4, 2022, that it will hold the first of a two-part webinar series on November 17, 2022, on EPA’s new standardized process to assess risk and apply mitigation measures, as appropriate, for mixed metal oxides (MMO), including new and modified cathode active materials (CAM). As reported in our October 11, 2022, memorandum, in October 2022, EPA announced an innovative effort intended to help make its review of new MMOs, including new and modified CAMs, more efficient. According to EPA, MMOs are used in batteries, electric vehicles, semiconductors, and renewable energy generation, making them a vital part of clean energy sectors.
 
EPA states that the kickoff webinar will provide statutory and regulatory background, including the related compliance advisory, a broad overview of the approach for risk assessment and risk management, and information on the Toxic Substances Control Act (TSCA) Inventory, nomenclature, and the bona fide process for those seeking to find out if their MMOs are already on the Inventory.
 
According to EPA, the second webinar, currently targeted for early 2023, will go into greater detail on the standardized risk assessment approach, present various case scenarios and a decision tree for identifying potential hazards and risks, and provide tips on risk calculators, tools, and models that are used for the risk assessment.
 
EPA encourages stakeholders to provide feedback, ideas, and questions at the kickoff webinar. This will help EPA supplement the information that will be shared at the second webinar and any follow-up communication on the new approach.

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