Document: NUREG-0800
Document ID: 743c65f7-fe56-43cc-8658-f69bb64672dc
Document Type: srp
Title: Final Revision 0 – April 2014
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1311/ML13115A156.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18
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CFR Title: 

Content:
n reliability analysis for the task. 18-A-5 Final Revision 0 – April 2014 should be justified and documented. Insights from the HFE program, especially the OER and Human Reliability Analysis, should be used. The identification of potential errors, error detection methods, and error recovery paths in event trees may be used to provide estimates of how much margin should be added to the operator response time estimates. For complex situations and for actions with limited margin, such as less than 30 minutes between time available and time required, a more focused staff review will be performed. 1.B. Review Criteria The responsible reviewers evaluate vendor/licensee/applicant’s submittals for compliance with the following criteria: • The analysis establishes the time available using an analysis method and acceptance criteria consistent with the guidance of BTP 7-19. 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, and displays that would be available in the MCR (MCR equipment) and operable during the assumed CCF scenario(s). Here operable means the MCR equipment that would still be available based on the defense-in-depth analysis of the postulated CCF associated with each event that is evaluated in the accident analysis section of the Safety Analysis Report (SAR). • The estimated time available for operators to complete the credited action is sufficient to allow successful