Document: NRC Regulatory Guide
Document ID: 3eb179d3-5491-407d-8b0e-eed083d58a17
Document Type: regulatory_guide
Title: Configuration Management Plans for Digital Computer Software Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1206 , Proposed Revision 1 08/1996 – DG-1055 , Proposed Revision 0 (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1032/ML103200044.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.169
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gital systems. Although not specifically endorsed by any particular regulatory guide the NRC staff has determined that Electric Power Research Institute (EPRI) Topical Report (TR)-106439, “Guideline on Evaluation and Acceptance of Commercial Grade Digital Equipment for Nuclear Safety Applications” that was issued October 1996 (Ref. 11), provides additional information for dedicating commercial grade digital equipment for use in nuclear power plant safety applications, and meets the requirements of 10 CFR Part 21. 8. Development Tools DG-1206, Page 9 Tools used in the development of safety system software should be handled according to IEEE Std. 7-4.3.2-2003, “IEEE Standard Criteria for Digital Computers in Safety Systems of Nuclear Power Generating Stations,” issued 2003 (Ref. 12), as endorsed by Regulatory Guide 1.152. In particular, an SCM program operated by the using organization that complies with IEEE Std. 828-2005 should take control of tools (i.e., tools should be treated as configuration items). SCM Plans should identify that software tools used in the production of safety system software be considered as a configuration item. 9. Acceptance Criteria Clause 4.2, “Downward Adaptation,” of IEEE Std. 828-2005 specifies conditions under which some requirements in the standard may be omitted when deemed not applicable to a particular scope, limited complexity, or unusual environment for a project. In order to maintain acceptance criteria established in accordance with Criterion V and suitably controlled conditions (in accordance with Criteria II and VIII) for safety system software, this regulatory guide does not endorse this clause. 10. Design Verification Clause 3.3.2(d) of IEEE Std. 828-2005 requires a definition of the verification, implementation, and release of a change. The criteria for verification must meet the requirements of Criterion III, which requires that design changes be subject to design control measures commensurate with those