The National Nuclear User Facility (NNUF) project is a Government investment in the UK’s nuclear future, providing state-of-the-art experimental facilities for research and development in nuclear science and technology. NNUF was established to support the Government Nuclear Industrial Strategy launched in March 2013 and has been successfully running for several years, with facilities in the University of Manchester Dalton Cumbrian Facility, the Culham Materials Research Facility and the National Nuclear Laboratory available for external access to undertake work on nuclear materials.