The U.S. Environmental Protection Agency’s (EPA) April 2018 Toxic Substances Control Act (TSCA) Chemical Substance Inventory is now available. For the first time, the Inventory includes a field designating substances that are “active” in U.S. commerce based on the following: Reporting from the 2012 and 2016 Chemical Data Reporting cycles; Notices of Commencement received by EPA since June 21, 2006; and Notice of Activity Form A’s received by EPA through the February 7,...