Abstract This chapter discusses key dimensions for the future of high-level radioactive waste governance (HLW) in Belgium. It highlights elements that a diverse set of stakeholders considered to be of importance for a national public debate, and puts them in the context of the theoretical notion of ‘matter of care’, as developed by Maria Puig De La Bellacassa (2017). Rather than highlight what perspective every type of actor develops, these perspectives are considered as an interrelated collective in which each has its own merits and reasons for existence. Our results show that it will be very difficult to define a one-sided governance approach that covers virtually all dimensions and expectations from all stakeholders in a satisfactory way. Multiple efforts and a mix of initiatives and responsive actions towards new developments will be needed. Approaching this from a perspective of care allows an empathic attitude towards the needs and expectations of all current and future stakeholders in this debate. Caring means assuming that sociotechnical uncertainties will remain, regardless of the preferred long-term option for radioactive waste. Caring is also about allowing real spaces for others who care to express what they care about and how they desire to do so. Caring is not about providing one pre-fixed initial programme, but is about ensuring the waste is being taken care of by means of a collective and open decision-making and governance process.