Swiss federal authorities

International

The main aim of ENSI’s international cooperation is the continuous improvement of nuclear safety and security, and the strengthening of nuclear oversight in Switzerland. This is to be achieved through active participation in the exchange of international regulatory information and experience, through international review missions and the support of other federal bodies.

Furthermore, ENSI’s international activities should contribute to the continuous improvement of nuclear safety and security, and to the strengthening and independence of nuclear oversight at a global level.

For this reason, ENSI is heavily involved in the committees of the International Atomic Energy Agency of the United Nations (IAEA), in the working groups of the Nuclear Energy Agency (NEA) of the Organisation for Economic Cooperation and Development (OECD), in the European Nuclear Security Regulators’ Association (ENSRA) and in particular in the Western European Nuclear Regulators’ Association WENRA.

International cooperation allows ENSI to follow developments in international safety regulations and foreign supervisory authorities and thus to be up-to-date with the latest scientific and technological developments, as well as offering an opportunity to shape and influence them.


News

  • News, Posts

    IAEA General Conference 2024: «ENSI is committed to strengthening global nuclear safety and security»

    ENSI participated in the 68th General Conference of the International Atomic Energy Agency IAEA in Vienna from 16 to 20 September 2024. This year, more than 150 member states gathered under the motto «Sustainability and Safety for a Better Future» to discuss the current challenges and future prospects of nuclear energy.

  • News, Posts

    Radioactive Waste and Spent Fuel: ENSI submits the Eighth National Report to the IAEA

    ENSI has submitted the eighth Swiss National Report to the Joint Convention. In March 2025, the contracting parties will evaluate the national reports at the Eighth International Review Meeting. In the report, ENSI provides information on the current situation regarding the handling of radioactive waste and spent nuclear fuel elements, the planned deep geological repository…

  • News, Posts

    Development of human resources and long-term skills retention in the nuclear sector represent international challenges

    Competition in the labour market and a shortage of skilled workers are a challenge also in the field of nuclear regulation. Regulatory authorities discussed possible solutions at the International Conference on Nuclear Knowledge Management and Human Resources Development (IAEA).


Background articles

  • Background articles, Comments, Posts

    Ten Years on from Fukushima (6/6): Conclusions

    The disastrous accident in Fukushima Daiichi occurred exactly ten years ago, on 11 March 2011. In the last few weeks, our article serie has highlighted the causes, the sequence and the effects, as well as describing the conclusions that we have been able to draw from the accident.

  • Background articles, Comments, Posts

    Ten years on from Fukushima, the ENSI Board still holds that safety has priority over political or economic interests

    Where there are conflicts of interest between politics, safety and profitability, safety must always take priority. This is one of the most important lessons learnt from the Fukushima nuclear accident.

  • Background articles, Posts

    ‘Switzerland is regarded as very reliable in nuclear matters’ – a commentary by former Federal Councillor Doris Leuthard

    At the time of the fateful accident in Fukushima, Doris Leuthard was head of the Federal Department of the Environment, Transport, Energy and Communications (DETEC). To commemorate the tenth anniversary of the nuclear disaster, the former Federal Councillor explains why it was essential to provide political support for nuclear safety after the accident.


Documents


Strategy documents