On November 16, 2022, the U.S. Environmental Protection Agency (EPA) published a much-anticipated supplemental notice of proposed rulemaking (SNPRM) to modify and supplement its 2021 proposed rule that would amend the 2018 Toxic Substances Control Act (TSCA) fees rule. 87 Fed. Reg. 68647. EPA states that “[w]ith over five years of experience administering the TSCA amendments of 2016, EPA is publishing this document to ensure that the fees charged accurately reflect the level of effort and resources needed to implement TSCA in the manner envisioned by Congress when it reformed the law.” EPA will hold a webinar on December 6, 2022, to provide an overview to stakeholders of the SNPRM. Registration for the webinar is open. Stakeholders who wish to provide oral comments during the webinar are asked to register by December 1, 2022. Written comments are due by January 17, 2023. For more information and our Commentary, please read the full memorandum.