Lynn L. Bergeson, “TSCA, SNURs, and Plastic Waste-Based Feedstocks,” Chemical Processing, July 18, 2023.

On June 20, 2023, the U.S. Environmental Protection Agency (EPA) proposed significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) for 18 chemicals subject to premanufacture notices (PMNs). The rulemaking reflects a level of EPA discomfort with certain new chemicals derived from plastic waste. This article explains the significance of this proposal.