The National Nanotechnology Coordination Office (NNCO) and European Commission (EC) will conduct a December 2-3, 2013, joint workshop in Arlington, Virginia, to bring together the U.S.-EU Communities of Research (CORs) to "publicize progress towards COR goals and objectives, clarify and communicate future plans, share best practices, and identify areas of cross-community collaboration." NNCO and EC also plan to host CORs meetings on environmental, health and safety issues related to nanomaterials between this notice’s publication date and September 30, 2014.

The CORs, "a platform for scientists to develop a shared repertoire of protocols and methods to overcome research gaps and barriers and to address environmental, health, and safety questions about nanomaterials," were proposed at the first U.S.-EU workshop on "Bridging NanoEHS Research Efforts" in March 2011. The following CORs were launched in 2012: (i) Exposure through the Life Cycle, with Material Characterization; (ii) Ecotoxicity Testing and Predictive Models, with Material Characterization; (iii) Predictive Modeling for Human Health, with Material Characterization; (iv) Databases and Ontologies; (v) Risk Assessment; and (vi) Risk Management and Control. They directly address a goal of the 2011 National Nanotechnology Initiative Strategic Plan—"Develop tools and procedures for … international outreach and engagement to assist stakeholders in developing best practices for communicating and managing risks." See Federal Register, September 16, 2013.