Swiss federal authorities

ENSI

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  • Guidelines

    ENSI issues guidelines in its capacity as the regulatory authority or based on a mandate in an ordinance. Guidelines are enforcement aids that convert legal requirements into concrete terms and facilitate uniform implementation. They also put the current state of the art of science and technology into concrete terms. ENSI may authorise deviations in individual…

  • Legal and Regulatory Framework

    The Swiss Federal Nuclear Safety Inspectorate ENSI is the regulatory authority responsible for nuclear safety and the security of nuclear installations in Switzerland. Its work is based on various legal foundations, in particular the Nuclear Energy Act and the Radiation Protection Act. ENSI issues guidelines in its capacity as the regulatory authority or based on…

  • Protection objectives

    To protect people and the environment from ionising radiation released from nuclear installations and nuclear materials, the following four safety objectives must be complied with: Each safety objective is based on several partial safety objectives and safety objective functions. This sub-division is not regulated in a uniform manner at the international level and to a…

  • Integrated Oversight

    Under nuclear energy legislation, the responsibility for nuclear safety lies with the operator of a nuclear installation. ENSI checks whether the operator fulfils this responsibility. It orders all necessary and reasonable measures aimed at preserving nuclear safety. ENSI’s targets mean that its regulatory activities are aimed at ensuring the nuclear installations are safe. To achieve…

  • Nuclear Safety and Security

    ENSI oversees and monitors the operation of the nuclear installations in Switzerland. By analysing the reports of the operators, and through inspections and checks, ENSI determines whether the operators are complying with their legal responsibility. It orders all necessary and reasonable measures aimed at preserving nuclear safety and security. In addition, ENSI monitors releases of…

  • Domains and Sections

    Executive Board As part of ENSI’s regulatory activities, the Executive Board passes the necessary decrees and issues expert opinions, technical statements and guidelines. As a committee, it decides on which nuclear safety research projects should be supported. The Executive Board members are elected by the ENSI Board and form the operational management body. Directorate  The…

  • News

    Oskar Grözinger left the ENSI Board at the end of December 2023

    Due to term limits, Oskar Grözinger stepped down from the ENSI Board at the end of 2023 after twelve years.

  • The Organisation of Nuclear Installations

    ENSI-G07/e This Guideline stipulates the requirements for the organisation of nuclear installations in the operational and post-operational phase.It includes references to other ENSI Guidelines as follows: The requirements for the training and qualification of personnel at nuclear installations are stipulated in Guidelines ENSI-B10 and ENSI-B13. The requirements for the emergency response organisation at nuclear installations…

  • News, Posts

    German-Swiss Commission Discusses IPPAS Follow-up Mission and Deep Geological Repositories

    At this year’s meeting, the German-Swiss Commission devoted particular attention to the progress made in deep geological disposal. The results of the IAEA’s international review missions in Switzerland and Germany were also discussed in Munich on 22 and 23 November 2023.