Finland recently approved the construction of a nuclear waste repository within its territory, after more than 30 years of investigations. The construction license was granted on 12 November 2015. Construction work can be started at Olkiluoto at the end of 2016. The disposal facility is expected to be ready for operation in 2023. Why is Finland the first country in the world to start operating a spent nuclear fuel disposal facility? First of all, we are fortunate to have ancient crystalline bedrock suitable for geological waste disposal. Seismic activity is low, there is no volcanic activity and the bedrock properties related, for example, to groundwater flow are favourable. In the past, GTK has carried out nationwide geological, geochemical and geophysical mapping, so the records provided a good starting point for evaluating the suitability of the bedrock and for site selection investigations. It was easy to find numerous candidate sites meeting the requirements of international standards. Nevertheless, a lot of complementary studies specific for nuclear waste disposal were required, and that’s what we have been doing during the past decades. Another key element is long-term planning. After the Finnish bedrock was shown to be suitable for nuclear waste disposal, the Finnish Government already made a decision-in-principle in 1983, which defined the objectives and schedule for nuclear waste management. Thus, together with the Nuclear Energy Act, the responsibilities of the various parties (industry, regulators, government) were clearly defined. The funding of the Nuclear Waste Management Fund was also organized. Without political acceptance and general transparency, nuclear waste programmes cannot proceed. Now that the construction license has been granted, will GTK maintain its research activities linked to the spent nuclear fuel disposal facility at Olkiluoto? Definitely, yes. Nuclear waste disposal is moving from site characterization to the...