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Radiation and Nuclear Safety Authority of Finland

The Radiation and Nuclear Safety Authority is an independent authority and expert organization whose task is to advance and supervise radiation safety and the safe use of nuclear energy in Finland.

Current issue

On 4 August 2026, the Radiation and Nuclear Safety Authority issued a statement to the Ministry of Economic Affairs and Employment on Posiva Oy’s application for a licence to operate a spent nuclear fuel encapsulation and final disposal facility. According to STUK, the safety requirement...

Radiation today

0.188 µSv/h
0.00 - 0.10 µSv/h
0.10 - 0.20 µSv/h
0.20 - 0.30 µSv/h
0.30 - 0.40 µSv/h
0.40 - µSv/h

Press releases and news

On 4 August 2026, the Radiation and Nuclear Safety Authority issued a statement to the Ministry of Economic Affairs and Employment on Posiva Oy’s application for a licence to operate a spent nuclear fuel encapsulation and final disposal facility. According to STUK, the safety requirement...

The submission of the Radiation and Nuclear Safety Authority’s (STUK) safety statement and the accompanying safety assessment to the Ministry of Economic Affairs and Employment regarding Posiva’s operating licence application for its spent nuclear fuel disposal facility has been delayed sinc...

The Radiation and Nuclear Safety Authority has published a summary report of an international safety review of the Finnish company Steady Energy's LDR-50 nuclear power plant concept. The published report complements the assessment of the plant concept previously completed by the Radiation and Nuclear Safety Authority by compiling...