Document: NUREG-0800
Document ID: 51b93b24-7bff-4144-949f-36812854b7aa
Document Type: srp
Title: HUMAN FACTORS ENGINEERING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1612/ML16125A114.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18.0
CFR Part: 
CFR Title: 

Content:
actions may be required. Performance Times • For each manual action, the mean performance time of the crews is less than or equal to the estimated time required derived from the analysis phase. • For each manual action, the performance time for each crew, including margin determined in the time required analysis, is less than the analyzed time available. PHASE 4: MAINTAINING LONG-TERM INTEGRITY OF CREDITED MANUAL ACTIONS 4.A. Method Among other factors, changes in plant design, procedures, and operator training can affect the ability of operators to correctly and reliably perform manual actions. Accordingly, the licensee/applicant should establish a strategy for long-term monitoring of operator ability to reliably perform the manual operator actions credited in an event analysis. The scope of the performance monitoring strategy should provide adequate assurance that integrated system performance will be maintained within the bounds established by the ISV and continue to support the associated event analysis. There is no expectation for the licensee/applicant to periodically repeat the full ISV; however, there should be sufficient controls to provide reasonable confidence that operators will maintain the skills necessary to accomplish the credited actions. The results of the monitoring need not be reported to the NRC, but should be retained onsite for inspection. Consistent with 10 CFR Part 50, Appendix B, “Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants,” Criterion III, “Design Control,” Criterion V, “Instructions, Procedures and Drawings,” and Criterion VI, “Document Control,” the vendor/licensee/applicant 18.0-27 Revision 3 – December 2016 should have in place sufficient configuration and design controls to assure that procedure steps that direct the credited action are administratively protected from inadvertent change, and that the design program has sufficient controls to assure that the design will