Document: NRC Regulatory Guide
Document ID: c6321e39-3d1b-40a6-ace3-8c6a0c54e2cd
Document Type: regulatory_guide
Title: Developing Software Life Cycle Processes for Digital Computer Software Used in Safety Systems of Nuclear Power Plants + HISTORY - HISTORY 08/2012 – DG-1210 , Proposed Revision 1 08/1996 – DG-1059 , Proposed Revision 0 (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1031/ML103120727.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.173
CFR Part: 
CFR Title: 

Content:
als from applicants and licensees. 1. Clarifications Because IEEE Std. 1074-2006 was not written specifically for nuclear safety, the following clarifications apply to the standard: DG-1210, Page 7 a. Identification of Regulatory Requirements. Criterion III of Appendix B to 10 CFR Part 50 requires, in part, the establishment of measures to ensure that applicable regulatory requirements and the design bases for those structures, systems, and components to which Appendix B applies are correctly translated into specifications, drawings, procedures, and instructions. The descriptions of input information, life-cycle activity, and output information that are required by IEEE Std. 1074-2006 should identify applicable regulatory requirements, design bases, and related guidance. b. Consistency. Various statements in IEEE Std. 1074-2006, such as: Section A.1.3.1 “Manage Risk” imply or state that life-cycle activities should be consistent with cost and schedule or that contingency actions may be taken to meet schedule or cost. All such activities and contingency actions should be consistent with, and justifiable in terms of, Criterion I of Appendix B, which requires that there be sufficient authority and organizational freedom, including sufficient independence from cost and schedule when those actions opposed to safety software quality are considered. The applicant or licensee is not relieved of the responsibility for ensuring reasonable assurance that activities selected can be conducted without endangering public health and safety. c. Commercial Software. In reference to all activities under Section A.2.2.3 “Allocate System Requirements” to IEEE 1074-2006 the Criterion III of Appendix B to 10 CFR Part 50 requires, in part, that measures be established for the selection and review for suitability of the application of materials, parts, equipment, and processes that are essential to the safety-related functions of the structures, systems, and components. Criterion