Today, nuclear technology is used in a variety of applications, including energy, medicine, research, and agriculture. These applications produce waste that is radioactive and, therefore, harmful to humans for a certain period of time. Radioactive wastes are generally sorted into three categories based on how radioactive the waste is: low-level waste; intermediate-level waste; and high-level waste (HLW). The storage and disposal of HLW poses a challenge because of the level of radiation emitted from this waste and/or the longevity of the radiation. This Comment examines the nuclear disposal plan of four leading nations as well as international structures and organizations that regulate or impact nuclear waste disposal. Further, it explores the concept of creating multinational repositories for HLW.