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May 10, 2005

Nanoscale Materials Hazards

NANOTECH MEETING: The EPA will conduct a public meeting on nanoscale materials to discuss a potential voluntary pilot program for certain nanoscale materials and the information needed to adequately inform the conduct of the pilot program. Nanoscale materials are chemical substances containing structures in the length scale of approximately 1 to 100 nanometers, and may have different molecular organizations and properties than the same chemical substances in a larger size. Some of the nanoscale materials are new chemical substances subject to notification requirements under ยง5 of the Toxic Substances Control Act (TSCA) and, therefore, are subject to review for potential human health and environmental risks before they are manufactured and enter commerce. Other nanoscale materials are existing chemical substances that may enter commerce without notification to EPA. EPA is considering a potential voluntary pilot program for such nanoscale materials. To that end, EPA is requesting comments at the public meeting on: (1) The scope and purpose of a voluntary pilot program for nanoscale materials that are existing chemical substances, (2) kinds of information that are relevant to the evaluation of potential risks from exposure to nanoscale materials, (3) chemical characterization and nomenclature of nanoscale materials for regulatory purposes, and (4) identification of interested stakeholders. These comments will inform EPA on possible approaches to protect human health and the environment from exposure to such chemical substances. The meeting will be held on June 23, 2005, at the Washington Plaza, 10 Thomas Circle, NW, Washington, DC 20005. Requests to attend the meeting may be submitted to Flora Chow, Chemical Control Division (7405M), Office of Pollution Prevention and Toxics, Environmental Protection Agency, 1200 Pennsylvania Avenue, NW, Washington, DC 20460-0001; telephone number: (202) 564-8983; e-mail address: [email protected]. 70 FR 24574-24576 (05/10/05).

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