Document: NUREG-0800
Document ID: eedf1a7c-578e-463a-9608-b06af6312cf1
Document Type: srp
Title: HUMAN FACTORS ENGINEERING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1310/ML13108A095.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18.0
CFR Part: 
CFR Title: 

Content:
ria The responsible reviewers evaluate licensee/applicant’s submittals for compliance with the following criteria: • An analysis establishes the time available. The basis for the time available is documented. • The analysis of the time required is based on a documented sequence of operator actions. The basis of the documented sequence of operator actions can be task analysis, vendor-provided generic technical guidelines for emergency operating procedure development, or plant-specific EOPs, depending on the maturity of the design. • Techniques to minimize bias are used when estimates of time required are derived using methods that are dependent on expert judgment. Uncertainties in the analysis of time required are identified and assessed. • The sequence of actions uses only alarms, controls, displays and equipment that would be available and functional during the subject event(s). The event and the regulatory guidance for analyzing the event typically define the alarms, controls, displays and equipment that remain functional. • The estimated time available for operators to complete the credited action is sufficient to allow successful execution of applicable steps in the symptom/function-based EOPs or other procedural guidance.5 4 As used here, credible operator errors are any errors of omission or commission that are plausible considering applicable operating experience and a human reliability analysis for the task 5 The Phase 1 analysis may be conducted using a task sequence based on task analysis, vendor-provided generic technical guidelines for emergency operating procedure development, or plant-specific EOPs, depending on the maturity of the design. Accordingly, it is recognized that it will not be possible in all circumstances to directly assess time available relative to this criterion during the Phase 1 analysis. 18.0-20 Draft Revision 3 – July 2015 • The initial MCR operating staff size and composition assumed for the analysis of time