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:
within the time available, the NRC staff will make a safety determination as part of the safety evaluation report (SER) on the associated licensing action. Acceptable implementation shall be verified through completion of specified ITAAC or license conditions. 2.B. Review Criteria The responsible reviewers evaluate vendor/applicant’s submittals for compliance with the following criteria: • The preliminary validation is conducted as an independent confirmation of the Phase 1 analysis that compared time available and estimated time required to complete the action. • The preliminary validation is conducted by a multi-disciplinary team with the knowledge and skills necessary to verify the rigor and assumptions of the analysis and validate the analysis conclusion regarding the ability of the operators to perform the actions reliability within the time available. • The preliminary validation uses methods appropriate to assessing time required for the task. For complex situations and for actions with limited margin, such as less than 30 minutes between time available and time required, the primary validation uses two or more methods to validate the analysis. • The preliminary validation results support the conclusion that the time required, including margin, to perform individual steps and the overall documented 18.0-24 Revision 3 – December 2016 sequence of manual operator actions is reasonable, realistic, repeatable, and bounded by the Phase 1 analysis documentation. Note: As the difference between time available and time required for operator action decreases, there is increasing potential that uncertainty in the estimate of difference between these times will invalidate a conclusion that operators can perform the actions reliably within the time available. PHASE 3: INTEGRATED SYSTEM VALIDATION This section describes the attributes of an acceptable method for validating manual operator actions through an integrated system validation. 3.A. Method ISV is an