Federal Register #2026-15352

EPA Proposed Rule: Significant New Use Rules (SNURs) for Specialty Chemical Substances under TSCA

This opportunity involves the Environmental Protection Agency (EPA) proposing Significant New Use Rules (SNURs) under the Toxic Substances Control Act (TSCA) for a range of specialty chemical substances. - Government Buyer: - Environmental Protection Agency (EPA) - Office of Pollution Prevention and Toxics - OEMs and Vendors: - Manufacturers and processors of specialty chemicals, including those in chemical manufacturing and petroleum refining (NAICS 325, 324110) - Products/Services Requested: - Chemical substances subject to SNURs, identified by PMN numbers: - Reaction products of aluminoxanes, Me, Me group-terminated and (alkylcycloalkylene)dialkylzirconium (P217) - Reaction products of aluminoxanes, Me, Me group-terminated and cycloalkylene dialkyl tetrahydroindenyl zirconium (P218) - 5-Hexen-2-one, 1-bicyclo[2.2.1]hept-2-yl- (P2136) - Methanesulfonic acid,l,l,l-trifluoro-, ytterbium(3+) salt (3:1) (P2159) - Ethyl cyclohexenyl propionate (P21185) - Fatty acids, C814, 2,3-diesters with rel-(2R,3S)-2,3,4-trihydroxybutyl.beta.-D-mannopyranoside acetate (P2427) - Graphene, turbostratic, 39 layers (P2486) - Graphene, turbostratic, 32 layers (P2487) - 2-Pyrrolidinone, polymer with 2-oxepanone (P24196) - Modified tall oil fatty acid polyamine condensate (P2515) - Carbomonocyclic alcohol, 4,4-[[6-(heteroatom-substituted carbomonocycle)-heteromonocycle-2,4-diyl]heteroatom-substituted]bis- (P2525) - Arsine, (1,1-dimethylethyl)- (P2577) - Carbomonocyclic substituted heteromonocyclic, salt with carbopolycyclic sulfocarboxylate (P25126) - Carbomonocyclic sulfonium, salt with carbopolycyclic sulfocarboxylate (P25127) - No specific purchase quantities or part numbers; these are regulatory designations - Unique or Notable Requirements: - Notification to EPA at least 90 days before commencing any significant new use - Protective measures required: enclosed processes, incineration for disposal, use of personal protective equipment (PPE), prohibition of release to water, hazard communication programs, and recordkeeping - Restrictions on production volume, concentration, inhalation exposure, and import for certain substances - Applies to manufacturers, importers, and processors of the listed chemicals - The SNURs aim to ensure health and environmental protection standards for new uses of these specialty chemicals.

Description

The Environmental Protection Agency (EPA) is proposing significant new use rules (SNURs) under the Toxic Substances Control Act (TSCA) for certain chemical substances that were the subject of premanufacture notices and EPA orders. These SNURs would require persons intending to manufacture or process these chemicals for activities designated as significant new uses to notify EPA at least 90 days prior to commencing such activities. The rules aim to ensure that all manufacturers and processors adhere to protective measures to prevent unreasonable risks to human health and the environment. Comments on the proposed rule are due by August 31, 2026.

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