Home   Austria   Belgium   Bulgaria   Croatia   Czech Republic   Finland   France   Germany   Hungary   Italy   Lithuania   Netherlands   Poland   Romania   Serbia   Slovakia   Slovenia   Spain   Sweden   Switzerland   United Kingdom   ENS SERVICE   Education & Training Finland General Information Network Stakeholders Universities Research Institutes National Authorities Industry Career opportunities Nuclear Authorities and Governmental Organisation: Radiation and Nuclear Safety Authority Finland The Radiation and Nuclear Safety Authority (STUK) is a regulatory authority, research centre and expert organisation whose mission is to protect people, society, the environment and future generations from the harmful effects of radiation.