The civilian and militaristic applications of nuclear technology—from the legacy remains from nuclear medicine and research (i.e. ANSTO) to the potential leftovers from nuclear-propelled submarines (i.e. AUKUS)—produce radioactive wastes that must be isolated from people and the biosphere for up to 5,000 generations into the future. Working with the First Nations-led Australian Nuclear Free Alliance (est. 1997), the proposed co-designed project will investigate international best practice in siting both low- and high-level nuclear waste repositories to inform Australian policy and activism consistent with the United Nations Declaration on the Rights of Indigenous Peoples which demands “free, prior and informed consent”.