The objective of this Safety Guide is to provide recommendations for meeting the requirements in performing or managing a Level 1 PSA project for a nuclear power plant and using it to support its safe design and operation. This Safety Guide is applicable to existing nuclear power plants and to evolutionary designs of nuclear power plants, but may not be fully applicable to revolutionary designs. The recommendations provided in this Safety Guide aim to promote technical consistency among Level 1 PSA studies in order to provide reliable support for applications of PSA and risk informed decision making. A further aim of this Safety Guide is to recommend a standard framework that can facilitate a regulatory review or an external peer review of a Level 1 PSA and its various applications.
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