Initiation of Prioritization Under the Toxic Substances Control Act (TSCA); Notice of Availability

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency [EPA-HQ-OPPT-2023-0601; FRL-11581-06-OCSPP] AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: Under the Toxic Substances Control Act (TSCA) and related implementing regulations, EPA is initiating the prioritization process for five chemical substances as candidates for designation as High-Priority Substances for risk evaluation. This action provides the identity of the chemical substances being initiated for prioritization, a general explanation of why the Agency chose these chemical substances, and information on the data sources EPA plans to use to support the designation. EPA is providing a 90-day comment period, during which interested persons may submit relevant information on these chemical substances. DATES: Comments must be received on or before March 18, 2025. ADDRESSES: Submit your comments, identified by docket identification (ID) number, through https://www.regulations.gov . Follow the online instructions for submitting comments. For comments not related to a specific chemical, including general comments on Unit IV.A., use docket ID number EPA-HQ-OPPT-2023-0601; submit information on the candidates for which EPA is initiating the prioritization process to the applicable chemical-specific docket ID number identified in Unit III.B.; submit information on the potential candidates for which EPA is not currently initiating the prioritization ( printed page 102904) process to the docket ID number identified in Unit I…