Document: NRC Regulatory Guide
Document ID: 5b36f49a-1e5b-4d3c-b352-91bfde8ef8cc
Document Type: regulatory_guide
Title: Acceptance of Commercial-Grade Design and Analysis Computer Programs Used in Safety-Related Applications for Nuclear Power Plants + HISTORY - HISTORY 04/2015 – DG-1305 , Proposed Revision 0
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1411/ML14119A286.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.231
CFR Part: 
CFR Title: 

Content:
er, licensees and applicants may consider and use the information in the secondary reference, if appropriately justified and consistent with current regulatory practice, consistent with applicable NRC requirements. 1 This RG does not apply to acceptance of commercial-grade computer programs at nuclear power plants which are not design and analysis (e.g. programs which perform instrumentation and control functions). DG-1305, Page 5 C. STAFF REGULATORY GUIDANCE Title 10 of the Code of Federal Regulations, Part 21, “Reporting of Defects and Noncompliance,” states in part that, “In all cases, the dedication process must be conducted in accordance with 10 CFR part 50, appendix B.” In support of this requirement, Appendix B to 10 CFR Part 50 provides evaluation and acceptance requirements that are applicable to commercial grade design and analysis computer programs for nuclear power plants. The below guidance accepts with clarification EPRI Topical Report 1025243, “Plant Engineering: Guideline for the Acceptance of Commercial-Grade Design and Analysis Computer Programs Used in Nuclear Safety-Related Applications,” Revision 1. 1. Staff Regulatory Guidance Position The requirements included in Revision 1 of EPRI Topical Report 1025243, “Plant Engineering: Guideline for the Acceptance of Commercial-Grade Design and Analysis Computer Programs Used in Nuclear Safety-Related Applications,” addresses the acceptance of commercial-grade nuclear power plant design and analysis computer programs. Revision 1 of EPRI 1025243 is acceptable to the NRC staff in providing an adequate basis for dedication as defined in 10 CFR Part 21, and fulfills the QA requirement in Appendix B to 10 CFR Part 50, subject to the following conditions: • Revision 1 of EPRI 1025243 states that its scope and basic intent is to provide acceptance guidance for non-process computer programs used in the design and analysis of plant SSCs. As such, the NRC staff does not accept the use of Revision