The NNI consists of the individual and cooperative nanotechnology-related activities of 20 Federal agencies with a range of research and regulatory roles and responsibilities. These Federal departments and independent agencies participate under the auspices of the Nanoscale Science, Engineering, and Technology (NSET) Subcommittee of the National Science and Technology Council. Below are summaries of the participating agencies and their NNI-related work. To find out more about the organizational structure of the NNI, see Coordination of the NNI.