Swiss federal authorities

  • Nuclear installations with low hazard potential

    The Paul Scherrer Institute plans to start a research project. The intention is to test a molten salt reactor. If this nuclear installation has a low hazard potential, no general licence will be required. ENSI specifies the requirements that must be met for a nuclear installation with low hazard potential.

    Read Article: Nuclear installations with low hazard potential
    Aktennotiz zu Kernanlagen mit geringem Gefährdungspotenzial

News

  • Exterior view of the FLEX building
    News, Posts

    Change in Leadership of the Nuclear Power Plants Division at ENSI

    Dr. Annette Ramezanian is stepping down from her position at the Swiss Federal Nuclear Safety Inspectorate ENSI and will leave ENSI on October 30, 2026.

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    Commission franco-suisse 2026: cross-border cooperation continues in the interests of nuclear safety

    At the 35th plenary meeting of the Commission franco-suisse , held on 24 and 25 June 2026 in Spiez, in the canton of Bern, the French and Swiss delegations discussed recent developments in nuclear safety and set out the priorities for bilateral cooperation for the coming year.

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    2025 Oversight Report: Compliance with approved operating conditions

    The Swiss nuclear installations complied with the legal requirements for their operation. There were no impermissible releases of radioactive substances into the environment. This is the conclusion reached by ENSI for the 2025 oversight year.

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    The International Nuclear Safety Policy Advisors Group INSPAG continues to grow

    At its fourth meeting in May 2026 in Schaffhausen, the International Nuclear Safety Policy Advisors Group (INSPAG) welcomed three new members: Italy, South Africa and the United States of America. This brings the total number of members in the network of officials responsible for international affairs to sixteen.