Swiss federal authorities

Guidelines

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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…

  • 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…

  • Deep Geological Repositories

    ENSI-G03 This guideline applies to deep geological repositories and the associated surface facilities and near-surface access structures. Pursuant to Article 3 letter c of the Nuclear Energy Act of 21 March 2003 (NEA; SR 732.1), a deep geological repository is a nuclear facility for the disposal of radiological waste in a deep geological formation, which…

  • Probabilistic Safety Analysis (PSA): Applications

    ENSI-A06/e This guideline formalizes the requirements for the application of Probabilistic Safety Analysis (PSA) for nuclear power plants. It presents the general principles, the requirements for maintenance and upgrade of the PSA, as well as the minimum required scope of PSA applications. The risk measure and evaluation criteria to be applied are defined for these…

  • Basic Training, Recurrent Training and Continuing Education of Personnel in Nuclear Installations

    ENSI-B10/e This guideline regulates the general requirements for the basic training, recurrent training and continuing education of the personnel in Swiss nuclear  nstallations that is relevant to nuclear safety. Pursuant to the Ordinance on the Qualifications of Personnel in Nuclear In-stallations (732.143.1), it regulates the further requirements on training, licensing exams, repeat training, further education…

  • ENSI’s Regulatory Framework Strategy

  • Probabilistic Safety Analysis (PSA): Quality and Scope

    ENSI-A05/e The guideline ENSI-A05 defines the quality and scope requirements regarding the plantspecific level 1 and level 2 Probabilistic Safety Analysis (PSA) for both internal and external events and covering all operating modes of the nuclear power plants. In  addition, this guideline establishes the PSA requirements for other nuclear installations. The quality and scope requirements…