High Quality Content by WIKIPEDIA articles! The Nuclear fuel cycle information system (NFCIS) is a database maintained by the International Atomic Energy Agency (IAEA) to store reliable information on nuclear fuel cycle facilities around the world. The NFCIS contains information submitted by IAEA member countries as well as public information. As of 2011, information about 695 facilities in 52 countries was available in the NFCIS.. NFCIS is a part of the Integrated Nuclear Fuel Cycle Information System, which contain information on the other parts of the nuclear fuel cycle.