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Technical Safety Review (TSR)

Technical Safety Review (TSR)

 

These review services address the needs of IAEA Member States at different stages of the development and deployment of a nuclear power programme. They provide an independent evaluation of plant design safety and safety assessment documentation and are adapted to address the specific needs of a requesting Member State.

TSR services encompass the spectrum of safety analyses performed in support of the design, licensing and operation of nuclear installations. The reviews address deterministic and probabilistic methods, as well as risk-informed decision-making approaches, and make recommendations for improvements to safety. The services are based on the IAEA’s Safety Standards and cover the areas of design safety, generic reactor safety, safety requirements and probabilistic safety assessment, as well as of accident management and period safety reviews.

The services aim at assisting plant operators and vendors, technical safety organizations and regulatory bodies in their technical evaluations, as well as in the development of requirements, and in enhancing nuclear safety for specific facilities. The TSR covers the following areas:

  • Safety of operating and new nuclear plant designs;
  • Specific chapters of the safety analysis report;
  • Safety requirements developed by regulatory authorities;
  • Safety assessments, also those related to plant modifications;
  • Action that need to be taken to address emerging safety issues; and
  • Periodic safety reviews.

TSR services are undertaken during the following stages of the nuclear life cycle:

  • Conceptual to detailed design;
  • Various pre-licensing, as well as licensing, phases;
  • Nuclear power plant construction; and
  • Nuclear power plant operation, including periodic safety reviews and life time extension.

The TSR services can also address specific technical or regulatory aspects, such as plans for plant modifications or safety regulation developed that is consistent with IAEA design safety and safety assessment requirements. The different subject areas can be combined to address specific Member States’ needs, including a wide-ranging review of safety case documentation.

Requesting a technical safety review service

Member States can request a TSR service from the IAEA through their Permanent Missions to the Agency. Terms of Reference for the service can be discussed and agreed with the IAEA before making an official request.

The review team is composed of senior international experts and led by IAEA staff. From initiation to completion, the service takes between three and nine months, depending on the requesting Member State’s needs and the selected topics. The services are funded by the requesting party or through IAEA technical cooperation projects. The review concludes with a final report issued by the IAEA to the beneficiary Member State, which includes conclusions and recommendations.

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