Experience indicates that RK&M need to be actively managed from the start of the waste management programmes. Several radioactive waste disposal programmes are now approaching implementation. The NEA Radioactive Waste Management Committee (RWMC) has created an international project addressing the preservation of RK&M across generations. This collective statement summarises the current understanding of the relevant needs and challenges to be faced. It underscores the willingness of the RWMC member organisations to work together and support national programmes to move forward in this area.