Document: NRC Regulatory Guide
Document ID: d6326081-f430-476d-8098-4edf00868dd9
Document Type: regulatory_guide
Title: Verification, Validation, Reviews, and Audits for Digital Computer Software Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1267 , Proposed Revision 2 01/2003 – DG-1123 , Proposed Revision 1 08/1996 – DG-1054 , Proposed Revision 0 (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1031/ML103160431.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.168
CFR Part: 
CFR Title: 

Content:
n process consistent with Criterion I of Appendix B. Several criteria in Appendix B to 10 CFR Part 50 contain requirements closely related to software V&V, reviews, and audits. These listed Criterions are only part of and not the entire set of requirements: • Criterion I, “Organization,” specifies that applicants must (1) ensure that an appropriate quality assurance program is established and effectively executed, and (2) verify (for example, by checking, auditing, and inspection) that activities affecting safety-related functions have been correctly performed. • Criterion II, “Quality Assurance Program,” requires, in part, that activities affecting quality be accomplished under suitably controlled conditions. Controlled conditions include the use of appropriate equipment, suitable environmental conditions for accomplishing the activity, and assurance that all prerequisites for the given activity have been satisfied. The criterion also requires that the program considers the need for verification of quality by inspection and test. • Criterion III, “Design Control,” requires, in part, that design control measures provide for verifying or checking the adequacy of design. • Criterion XI, “Test Control,” requires, in part, that a test program be established to assure that all testing required to demonstrate that structures, systems, and components will perform satisfactorily in service is identified and performed in accordance with written test procedures that incorporate the requirements and acceptance limits contained in applicable design documents. • Criterion XVIII, “Audits,” requires, in part, that a comprehensive system of planned and periodic audits be carried out to verify compliance with all aspects of the quality assurance program and to determine the effectiveness of the program. Description of Change Technical reviews, some audits, and software inspections and walkthroughs focus on the V&V of products of the software development