Document: NRC Regulatory Guide
Document ID: b4874b3a-bbf8-4eb6-8b86-db32ecf45ac6
Document Type: regulatory_guide
Title: Guidance for Implementation of 10 CFR 50.59, Changes, Tests, and Experiments (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1904/ML19045A435.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.187
CFR Part: 
CFR Title: 

Content:
o endorse NEI 01-01 as stated in RIS 2002-22 and RIS 2002-22, Supplement 1, which remain in effect. NEI 96-07, Appendix D, does not replace or supersede NEI 01-01 either in whole or in part. Licensees have the option to use the 10 CFR 50.59 guidance in total in either NEI 01-01 or in NEI 96-07, Appendix D. However, NEI 96-07, Appendix D, does not describe, and this revision to RG 1.187 (Revision 2) does not endorse, applying select portions from both NEI 96-07, Appendix D and the 10 CFR 50.59 guidance of NEI 01-01. In addition, NEI 96-07, Appendix D is applicable to digital modifications only and is not generically applicable to the 10 CFR 50.59 process. Harmonization with International Standards The NRC staff reviewed guidance from the International Atomic Energy Agency (IAEA) and International Organization for Standardization (ISO) and did not identify any standards that provided useful related guidance to NRC staff, applicants, or licensees. Documents Discussed in Staff Regulatory Guidance This RG endorses, in part, the use of a third-party guidance document, NEI 96-07, Revision 1. This third-party guidance document may contain references to other codes, standards, or third-party guidance documents that the NRC refers to as secondary references. If a secondary reference has itself been incorporated by reference into NRC regulations as a requirement, then licensees and applicants must comply with that standard as set forth in the regulation. If the secondary reference has been endorsed in a RG as an acceptable approach for meeting an NRC requirement, then the standard constitutes a method acceptable to the NRC staff for meeting that regulatory requirement as described in the specific RG. If the secondary reference has neither been incorporated by reference into NRC regulations nor endorsed in a RG, then the secondary reference is neither a legally binding requirement nor a generic, NRC-approved DG-1356, Page 6 acceptable approach for meeting an NRC requirement.