EPA Modifies Significant New Uses of Ethaneperoxoic Acid, 1,1-Dimethylpropyl Ester


Source: EPA
Related Topics: Toxic Substances Control Act (TSCA) US Environmental Protection Agency

EPA proposed a modification to a Toxic Substances Control Act (TSCA) significant new use rule (SNUR) for a chemical substance that is the subject of premanufacture notice (PMN) P-85-0680 and a SNUR at 40 CFR 721.3020. As a result of technical studies conducted subsequent to the issuance of the SNUR (June 26, 1990; 55 FR 26111), EPA concluded that 1) its finding in the original TSCA section 5(e) consent order that certain activities involving the substance may present an unreasonable risk of injury to human health is no longer supported, 2) peroxides as defined under its new chemicals categories (see should no longer be considered potential carcinogens, and 3) toxicity to aquatic organisms may occur at concentrations that exceed 61 ppb of the PMN substance in surface waters.

To conform with these findings, the Agency has already modified its peroxide new chemicals category, and the Agency is proposing the following modifications to the SNUR: 1) Removing the significant new use requirements for protective equipment, hazard communication, and specific uses identified in the consent order; 2) modifying significant new use requirements for environmental releases by removing notification requirements for disposal, and adding notification requirements for water releases above 61 ppb, and 3) revising the recordkeeping requirements accordingly.

EPA will take comments on the proposal until February 27, 2013.

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