2018 | AFC ACCOMPLISHMENTS 40 OECD-NEA Expert Group on Accident Tolerant Fuels for LWRs Expert Group Chair: Kemal Pasamehmetoglu, INL Systems Assessment Task Force Chair: Shannon Bragg-Sitton, INL The Organization for Economic Cooperation and Develop- ment /Nuclear Energy Agency (OECD/ NEA) Nuclear Science Committee approved the formation of an Expert Group on AccidentTolerant Fuel (ATF) for LWRs (EGATFL) in 2014.A total of 35 institutions from 14 member countries – Belgium, the Czech Republic, France, Germany, Japan, Korea, the Netherlands, Norway, Russia, Spain, Sweden, Switzerland, the United Kingdom and the United States – as well as invited technical experts from China, participated in the activities of the group. The expert group was divided into three task forces, which addressed the following issues: • evaluation metrics and systems assessment; • cladding and core materials options; • fuel options. The efforts of the three task forces were coordinated to provide a single report, where the different contributions were jointly compiled with the objective of summarizing the existing knowledge on ATFs, including the potential benefits of each concept, and identifying the additional development needs for successful commercialization.