Swiss federal authorities

ENSI

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  • IAEA Regulators’ Conference 2026
    News, Posts

    IAEA Regulators’ Conference 2026: Perspectives on a resilient regulatory culture

    From 27 to 30 April 2026, ENSI participated in the Regulators’ Conference of the International Atomic Energy Agency (IAEA) in Vienna. In the panel discussion on resilient regulatory culture, ENSI Director General Marc Kenzelmann presented ENSI’s perspective.

  • Swiss Delegation to the 2026 CNS Review Meeting
    News, Posts

    CNS Review Meeting 2026: positive result for Switzerland and identified challenge concerning the availability of national expertise

    Switzerland received a positive overall assessment at the tenth Review Meeting of the Convention on Nuclear Safety. Alongside several areas where its performance was assessed as particularly good, one key challenge was identified concerning the long-term availability of technical expertise.

  • Country Specific Safety Culture Forum (CSSCF) Switzerland
    News, Posts

    Typical Swiss characteristics and their influence on safety and oversight culture

    Professionalism, precision, personal responsibility: such typical Swiss characteristics support a good safety culture. Other typical characteristics, such as a focus on consensus and complacency, on the other hand, could have a negative influence, writes the NEA/OECD in its recently published report on the Country-Specific Safety Culture Forum Switzerland held at the end of 2024.

  • Patrick Tschudin, new Chief of Staff of ENSI's Directorate Division
    News, Posts

    New Chief of Staff of the Directorate Division

    On 25 March, the Board of the Swiss Federal Nuclear Safety Inspectorate (ENSI) appointed Patrick Tschudin as the new Chief of Staff of the Directorate Division. He will take up his post on 1 August this year. The lawyer and current head of the Legal Section succeeds Andreas Schefer, who will continue to work for…

  • Statement on the 2022 Periodic Safety Review (PSR) of the Leibstadt Nuclear Power Plant
    News, Posts

    Leibstadt Nuclear Power Plant: ENSI calls for improvements for long-term operation

    Leibstadt Nuclear Power Plant was operated with the necessary care during the review period from 1 January 2016 to 31 December 2021 and maintained a good level of safety. ENSI notes this in a statement on the 2022 Periodic Safety Review (PSR). Additionally, ENSI assesses the Leibstadt Nuclear Power Plant backfit concept for long-term operation…

  • News, Posts

    Detailed exchange with the Polish Nuclear Regulatory Authority

    A high-ranking delegation from the Polish Nuclear Regulatory Authority (PAA) visited Switzerland from 17 to 19 November 2025. The programme included an exchange of experiences on regulatory activities, safety culture, research and deep geological disposal of radioactive waste.

  • News, Posts

    IAEA General Conference 2025: lively exchange to promote nuclear safety

    ENSI was part of the Swiss delegation at the 69th IAEA General Conference. It took the opportunity to exchange views with numerous regulatory authorities, thereby promoting the safety and security of Swiss nuclear facilities.

  • Convetion on Nuclear Safety 2025
    News, Posts

    Convention on Nuclear Safety: Switzerland submits 10th national report to IAEA

    Switzerland has submitted its 10th national report on the Convention on Nuclear Safety (CNS) to the International Atomic Energy Agency (IAEA) in Vienna. The report shows that Switzerland is complying with the requirements of the international convention.

  • Laptop screen displaying a page with the new web layout of the ENSI Board
    News, Posts

    Welcome to the new ENSI Board website!

    The redesign of the ENSI Board website focuses on the needs of the target groups. The structure of the new website has been slightly streamlined and new functions have been integrated. All ENSI Board announcements are still available under News. The News can now be displayed as a list or as tiles. Links in the footer…