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
CFR Part: 
CFR Title: 

Content:
al HSIs Are In Place In Parallel With - Old Functional HSIs. The staffs review should address whether the applicant can verify that (as identified in NUREG-071 1) the potential for negative effects on personnel performance due to control room or HSI clutter arising from having both old and new' HSIs available in parallel is evaluated and that the nonfunctional state of the HSIs is clearly indicated. C. - Review of the HFE Aspects of Modifications Affecting Human Actions' The staff's review of license amendments and actions involving plant changes that affect human actions (HAs) uses a graded, risk-informed approach in conformance with Regulatory Guide (RG) 1.174 (NRC, 1998). The staffs review uses a two-phase approach. The first phase is a screening analysis to determine the risk associated with the plant modification and its associated HAs using both quantitative and qualitative information (see Section C.1 below). This approach can be accomplished for submittals by licensees that are either risk-informed or non-risk-informed. Plant modifications and HAs are categorized into regions of high, medium, and lower risk. This categorization is used to determine the level of HFE review needed. The second phase of the review is performed by the human factors analyst and consists of the HFE review. Changes that Involve more risk-significant HAs receive a detailed review (see Section C.2.1 below), while those of moderate risk significance receive a less detailed review (see Section C.2.2 below). HAs in the lowest risk region receive minimal HFE review (see Section C.2.3 below). C.1 Phase I - Risk Screening- Section C.1.1 discusses the risk screening process for' Risk-informed Change Requests, while Section C.1.2 discusses the risk screening process for'Non-risk-informed Change Requests. C.1.1 Screening Process for Risk-informed Change Requests If the submittal is appropriately risk-informed, applicants should evaluate the risk associated with the proposed modification and