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On May 1, 2017, the U.S. Environmental Protection Agency (EPA) issued a notice in the Federal Register stating it was reopening and extending the comment period for two proposed rules:  (1) to prohibit the use of trichloroethylene (TCE) in vapor degreasing; to require manufacturers (including importers), processors, and distributors, except for retailers, of TCE for any use to provide downstream notification of these prohibitions throughout the supply chain; and to require limited...

On February 9, 2017, the U.S. Environmental Protection Agency (EPA) announced it was extending the comment period for the two recently proposed rules issued under Section 6 of the Toxic Substances Control Act (TSCA) to ban certain uses of trichloroethylene (TCE):  proposed rule to ban certain uses of TCE in aerosol degreasing and as a spot cleaner in dry cleaning facilities (issued December 16, 2017); and proposed rule to regulate the use of TCE in...

On December 7, 2016, the U.S. Environmental Protection Agency (EPA) announced it would be issuing a rule proposing to prohibit the manufacture, processing, and distribution in commerce of trichloroethylene (TCE) for certain uses under Section 6 of the Toxic Substances Control Act (TSCA), due to its determination that there are significant health risks associated with TCE use in aerosol degreasing and for spot cleaning in dry cleaning facilities.  The proposed action is significant for...

On October 5, 2012, the U.S. Environmental Protection Agency (EPA) promulgated a final significant new use rule (SNUR) for potassium titanium oxide, which was previously the subject of a consent order under Section 5(e) of the Toxic Substances Control Act (TSCA). EPA states that, based on test data on the premanufacture notice (PMN) substance and structure activity relationship analysis of test data on analogous respirable, poorly soluble particulates (subcategory titanium dioxide), EPA...

On April 4, 2012, the U.S. Environmental Protection Agency (EPA) promulgated, through a direct final rule, significant new use rules (SNUR) for 17 chemical substances that were the subject of premanufacture notices (PMN). This includes a SNUR for “infused carbon nanostructures (generic).” According to EPA, the PMN states that the generic (non-confidential) use of the substance is as an additive to provide conductive properties to reinforcements used in composites. EPA states that, based...

The U.S. Environmental Protection Agency (EPA) has announced that, in response to public comments, it will provide the public more time to comment on the December 28, 2011, proposed significant new use rules (SNUR) for 17 chemical substances that were the subject of premanufacture notices (PMN). Of particular interest, seven of the PMN substances’ reported chemical names include the term “carbon nanotube” (CNT) or “CNT.” EPA states “the comment period is being...

The U.S. Environmental Protection Agency (EPA) published on December 28, 2011, proposed significant new use rules (SNUR) for 17 chemical substances that were the subject of premanufacture notices (PMN). Of particular interest, seven of the PMN substances’ reported chemical names include the term “carbon nanotube” (CNT) or “CNT.”  EPA states that because of a lack of established nomenclature for CNTs, the Toxic Substances Control Act (TSCA) Inventory names for CNTs are...

The U.S. Environmental Protection Agency’s (EPA) July 7, 2011, Regulatory Agenda includes several notices concerning nanoscale materials:...

On May 6, 2011, the U.S. Environmental Protection Agency (EPA) promulgated a final significant new use rule (SNUR) under Section 5(a)(2) of the Toxic Substances Control Act (TSCA) for the chemical substance identified generically as multi-walled carbon nanotubes (MWCNT), which was the subject of premanufacture notice (PMN) P-08-199. Under the final SNUR, persons intending to manufacture, import, or process MWCNT for a use that is designated as a significant new use by the final rule must...

On April 6, 2011, several members of the NanoSafety Consortium submitted to the U.S. Environmental Protection Agency (EPA) a proposed testing agreement under Section 4 of the Toxic Substances Control Act (TSCA). Under the proposed testing agreement, the substances to be tested may include multi-walled carbon nanotubes, double-walled carbon nanotubes, single-walled carbon nanotubes, and graphene nanoplatelets. Participants would conduct 90-day inhalation toxicity studies in rats, and submit...