The National Nanotechnology Coordination Office (NNCO) announced in the September 8, 2014, Federal Register that it will hold a technical interchange meeting entitled “Realizing the Promise of Carbon Nanotubes -- Challenges, Opportunities and the Pathway to Commercialization” on September 15, 2014. The meeting is sponsored by the National Nanotechnology Initiative (NNI) and co-sponsored by the National Aeronautics and Space Administration (NASA). According to the notice, the objectives of the meeting are to identify, discuss, and report the technical barriers preventing the production of carbon nanotube-based materials with electrical and mechanical properties approaching theoretical values, and to explore ways to overcome these barriers. The notice states that the meeting “will assemble some of the Nation’s leading experts in carbon nanotube research and development, as well as executives and experts from the Federal government, academia, and private sector.” The meeting will be held at NASA Headquarters, in Washington, D.C. Registration opens September 8, 2014, and pre-registration is required. Written comments are due September 10, 2014.