Document: NUREG-0800
Document ID: 80cafbe7-f4f0-4366-8dd3-76fec74d85a7
Document Type: srp
Title: HUMAN FACTORS ENGINEERING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0409/ML040920139.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18.0
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ain the plant, or otherwise maintain safety. An example of such a modification would be substituting manual actions for automatic actions for performing design functions described in the updated final safety analysis report (UFSAR). The NRC may also review certain plant modifications involving changes to the FSAR as part of the change process described in 1 OCFR50.59. Additional guidance related to 10 CFR 50.59 is provided in RG 1.187 (NRC,'2000) and Nuclear Energy Institute (NEI) publication 96-07, "Guidelines for 10 CFR 50.59 Implementation," (NEI, 2000). B. Graded Approach to Review . The review methodology set forth In this document is presented as an overview. The degree to which the NRC staff evaluates 'an applicant's HFE design will reflect the specific circumstances of individual applications. For example, generally the review of the HFE aspects of a new plant will entail a comprehensive, detailed evaluation (see Section I.A), while the review of individual modifications to existing designs may be less extensive. In addition, staff reviews should also. reflect a risk-informed regulatory approach and considerations. The NRC, the nuclear industry, and the public have moved to a broader consideration of risk in mnany' activities associated with NPPs. Therefore, risk importance is taken into account when deciding wvhich' oarticiilar items to review and the depth of review necessary. This aspect of grading the review is discussed in Section IL.C below and can be applied to both risk-informed and non-risk informed submittals. .18.0-3 Rev. 1 - February, 2004 This chapter provides detailed examples of graded review criteria for several reviews: * Human-system interface modifications (see Section 11.8) * Modifications affecting human actions of high risk importance (see Section II.C.2) * Modifications affecting human actions of moderate risk importance (see Section II.C.3) * Modifications affecting human actions of lower risk importance (see Section II.C.4) Within