Swiss federal authorities

International Affairs

In Switzerland, on-going activities regarding safety assessment of the different stages in the lifetime of nuclear installations consist of periodic assessments and assessments of long-term operation for existing Swiss NPPs.

When it comes to international affairs, Switzerland has signed the Convention on Nuclear Safety (CNS) on 31 October 1995. In November 2011, an IRRS Mission was conducted in Switzerland. The results of the mission are currently being implemented, and it is planned to have an IRRS Follow-Up Mission in 2015. In October 2012, an OSART Mission to the Mühleberg NPP was completed. Switzerland participated in the European Stress Test and its Follow-Up activities.

Top Article

  • News, Posts

    ENSI at the IAEA Regulatory Systems Conference: competence management in focus

    ENSI is attending a four-day conference of the International Atomic Energy Agency IAEA – the International Conference on Effective Nuclear and Radiation Regulatory Systems – which is taking place in Abu Dhabi from 13 to 16 February 2023. A core theme of the conference will be the topic of competence management in the nuclear sector.

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

    Switzerland and Spain intensify exchange of information on nuclear safety and radiation protection

    ENSI and the Spanish nuclear safety authority CSN have signed a memorandum of understanding to increase the exchange of nuclear regulation experience and information between Switzerland and Spain.

  • News, Posts

    Commission on Safety Standards: Priorities defined for nuclear safety

    The first meeting of the Commission on Safety Standards (CSS) for the 2024 – 2027 term took place from the 28 – 30 May 2024. The emphasis of the meeting was on summarizing the findings from the last term and developing priorities for the next four years. Switzerland is chairing the current term.

  • IPPAS Mission Vienna
    News, Posts

    Conference on Nuclear Security: Shaping the future

    ENSI is part in a five-day International Atomic Energy Agency (IAEA) conference: The fourth “International Conference on Nuclear Security” (ICONS) will take place in Vienna from 20 to 24 May 2024, with Switzerland committed to a strong system of international security.

  • Delegation der spanischen Aufsichtsbehörde.
    News, Posts

    The Spanish regulatory authority and ENSI in talks on radiation protection

    From 6 to 8 May 2024, a delegation from the Spanish regulatory authority visited ENSI. Discussions focused on the topic of radiation protection, in particular exchanging of experience relating to the Leibstadt NPP and to the Mühleberg NPP, which is currently being dismantled.

Background Articles

  • 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.

  • IAEA Building in Vienna
    Background articles, Posts

    Ten Years on from Fukushima (5/6): Switzerland’s International Position

    After the accident at Fukushima, there was an increasing demand for international safety standards and their international monitoring. Switzerland, and in particular ENSI, was committed to mandatory backfitting on a global basis. Even if such safety principles are still not legally binding, the reactor accident acted as a booster for a new safety awareness amongst…

  • Background articles, Posts

    Exchange of information across borders

    «I do a lot of travelling for ENSI. On bilateral and international committees we discuss safety requirements and initiate measures to make them more stringent where necessary. The safety authorities cultivate a frank exchange of information. Swiss experts, for instance, support French colleagues during inspections of their nuclear power plants – and vice-versa. In this…

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