Proposed High-Priority Substance Designations 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-11581-03-OCSPP] AGENCY: Environmental Protection Agency (EPA). ACTION: Notice. SUMMARY: Under the Toxic Substances Control Act (TSCA) and related implementing regulations, the Environmental Protection Agency (EPA or Agency) is proposing to designate acetaldehyde (CASRN 75-07-0), acrylonitrile (CASRN 107-13-1), benzenamine (CASRN 62-53-3), vinyl chloride (CASRN 75-01-4), and 4,4-methylene bis(2-chloroaniline) (MBOCA) (CASRN 101-14-4) as High-Priority Substances for risk evaluation. EPA is providing a 90-day comment period, during which interested persons may submit comments on the proposed designations of these chemicals as High-Priority Substances for risk evaluation. DATES: Comments must be received on or before October 23, 2024. ADDRESSES: Submit your comments, identified by docket identification (ID) number, through https://www.regulations.gov . Follow the online ( printed page 60421) 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 V. Do not submit electronically any information you consider to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Additional instructions on com…