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, 2018, deadline, per the TSCA Inventory Notification (Active-Inactive) Rule.

EPA states that it “carefully processed and conducted a quality check of the data to ensure duplicate entries and confidential business information were removed” from the large number of notices received under the Active-Inactive Rule. EPA also posted a list of substances reported in a Notice of Activity Form A from February 8 through March 30, 2018. According to EPA, this list should assist processors in determining which of their substances on the Inventory have not yet been designated as “active” to date. Based on our review, the Inventory lists approximately 38,303 total active substances, or about 44.5 percent. The deadline for voluntary submission of a Notice of Activity Form A by processors is October 5, 2018.