The U.S. Environmental Protection Agency (EPA) announced in a December 13, 2010, Federal Register notice that it will hold a public information exchange meeting to receive comments and questions on the Nanomaterial Case Studies on January 4, 2011, in Research Triangle Park, North Carolina. According to EPA, the meeting will provide it an opportunity to highlight the Nanomaterial Case Studies and how EPA is using the studies as part of an ongoing process to refine a long-term research strategy to support the comprehensive environmental assessment of nanomaterials. Registration is required to attend the meeting, and EPA states that space is limited. Comments may be submitted in writing or made orally during the meeting. Written comments are due December 28, 2010. EPA intends to consider all such comments in evaluating whether or how to develop further case studies and workshops on nanomaterials. To date, EPA has published two Nanomaterial Case Studies — Nanomaterial Case Studies: Nanoscale Titanium Dioxide in Water Treatment and in Topical Sunscreen (Final), and Nanomaterial Case Study: Nanoscale Silver in Disinfectant Spray (External Review Draft).