Archives

October 11, 2012

Potassium Titanium Oxide SNUR Bans Manufacture of Particle Size Less Than 100 nm

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...
April 4, 2012

EPA Promulgates SNUR for Infused Carbon Nanostructures

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...
January 30, 2012

EPA Extends Comment Period for Proposed SNURs

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...
December 28, 2011

EPA Publishes Proposed SNURs for CNTs

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...
May 9, 2011

EPA Issues Final SNUR for Certain Multi-Walled Carbon Nanotubes

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...
April 12, 2011

NanoSafety Consortium Submits Proposed Testing Agreement to EPA

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...
September 17, 2010

EPA Issues Final SNURs for Carbon Nanotubes

On September 17, 2010, the U.S. Environmental Protection Agency (EPA) issued final significant new use rules (SNUR) for two chemical substances that were the subject of premanufacture notices (PMN). The two chemical substances are identified generically as multi-walled carbon nanotubes (MWCNT) (PMN P08177) and single-walled carbon nanotubes (SWCNT) (PMN P08328). Persons who intend to manufacture, import, or process either of these substances for a use that is designated as a...
July 29, 2010

EPA Reopens Comment Period for Multi-Walled Carbon Nanotube SNUR

On July 28, 2010, the U.S. Environmental Protection Agency (EPA) published a Federal Register notice announcing that it is reopening the comment period for its February 3, 2010, proposed significant new use rule (SNUR) for the chemical substance identified generically as multi-walled carbon nanotubes (P-08-199).  According to the July 28, 2010, notice, a commenter noted that neither the proposed rule nor the docket contained specific carbon nanotube data or data supporting the nature of the...
June 28, 2010

GAO Report States That EPA Faces Challenges in Regulating Risk of Nanomaterials

According to a report released on June 25, 2010, by the U.S. Government Accountability Office (GAO), the U.S. Environmental Protection Agency (EPA) faces challenges in effectively regulating nanomaterials that may be released in air, water, and waste because EPA lacks the technology to monitor and characterize these materials, or the statutes include volume-based regulatory thresholds that may be too high for effectively regulating the production and disposal of nanomaterials. In...
May 5, 2010

PPDC Discusses Nanotechnology and Pesticides

On April 29, 2010, during the U.S. Environmental Protection Agency’s (EPA) Pesticide Program Dialogue Committee (PPDC) meeting, William Jordan, Senior Policy Advisor, Office of Pesticide Programs (OPP), presented slides regarding nanotechnology and pesticides. Jordan briefly described how OPP is defining nanoscale materials and how the technology is being applied to the field of pesticides. His presentation described OPP’s recent consultation with EPA’s Scientific...
November 9, 2009

EPA Proposes SNURs for Carbon Nanotubes

On November 6, 2009, the U.S. Environmental Protection Agency (EPA) proposed significant new use rules (SNUR) under Section 5(a)(2) of the Toxic Substances Control Act (TSCA) for two chemical substances that were the subject of premanufacture notices (PMN). EPA identified the substances generically as multi-walled carbon nanotubes and single-walled carbon nanotubes. According to the notice, these substances are subject to TSCA Section 5(e) consent orders issued by EPA. The consent orders...
August 21, 2009

EPA Withdraws Final SNURs for CNTs

Today’s Federal Register includes a notice from the U.S. Environmental Protection Agency (EPA) withdrawing the June 24, 2009, final significant new use rules (SNUR) for multi- and single-walled carbon nanotubes (CNT). EPA states that it published the final SNURs using direct final rulemaking procedures. Because EPA received a notice of intent to submit adverse comments on the rules, it is withdrawing the SNURs for CNTs. The Federal Register notice does not identify the...
August 4, 2009

EPA Clarifies Final CNT SNURs

On July 28, 2009, the U.S. Environmental Protection Agency (EPA) clarified its June 24, 2009, final Significant New Use Rules (SNUR) for multi- and single-walled carbon nanotubes (CNT).  According to EPA, upon review of the final rule, stakeholders asked whether the SNURs applied to all types of CNTs.  EPA responded: This is not the case.  These SNURs only apply to the specific carbon nanotubes that were the subject of the premanufacture notices (PMN)...