Swiss federal authorities

Annual reports

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  • Strahlenschutzbericht 2025
    News, Posts

    Effective radiation protection in Swiss nuclear installations confirmed once again

    ENSI’s Radiation Protection Report 2025 shows that all Swiss nuclear installations remained well within the legal requirements for the release of radioactive substances into the environment and the radiation exposure of personnel. ENSI verified this during the year under review through inspections, measurements and checks.

  • Radiation Protection Report 2025 – ENSI-AN-12569

    ENSI’s Radiation Protection Report 2025 shows that all Swiss nuclear installations remained well within the legal requirements for the release of radioactive substances into the environment and the radiation exposure of personnel in 2025.

  • ENSI Erfahrungs- und Forschungsbericht 2025
    News, Posts

    ENSI publishes Research and Experience Report 2025: focus on robotics for radiation protection and human factors

    The 2025 Research and Experience Report reveals a year marked by the expansion of regulatory safety research and important international developments. With more than 50 ongoing projects, ENSI’s research programme is bigger than ever and is specifically strengthening the scientific basis for nuclear oversight in Switzerland.

  • Bild mit Dokumenten

    Annual account 2024 (in German)

  • News, Posts

    2024 Oversight Report: Nuclear power plants complied with approved operating conditions

    ENSI assessed the safety condition of the nuclear power plants as good overall for 2024. All reportable events were of minor significance for nuclear safety. This is the conclusion reached by ENSI in its 2024 Oversight Report.

  • ENSI Board’s 2024 activity and business report

  • News, Posts

    Federal Council approves ENSI Board’s 2024 activity and business report

    The ENSI Board has assessed ENSI’s regulatory activities in relation to Switzerland’s nuclear installations as responsible, appropriate and of high quality.

  • Titelblatt Strahlenschutzbericht 2024
    News, Posts

    Radiation Protection Report 2024: All Legal Limits Met

    In 2024, Swiss nuclear installations met all legal radiation protection limits according to ENSI’s annual radiation protection report. Based on a closely coordinated system of monitoring instruments, ENSI was able to verify that the regulated parties fulfilled their legal obligations to protect both personnel and the general public from radiation.

  • Radiation Protection Report 2024 – ENSI-AN-12238

    In 2024, Swiss nuclear installations met all legal radiation protection limits according to ENSI’s annual radiation protection report. Based on a closely coordinated system of monitoring instruments, ENSI was able to verify that the regulated parties fulfilled their legal obligations to protect both personnel and the general public from radiation.