Document: NUREG-0800
Document ID: 0acce825-b76b-42b8-abac-5dd1ef880f21
Document Type: srp
Title: Diversity and
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1601/ML16019A085.pdf
Revision Date: 2023-06
Chapter: 7
Section ID: 7.9
CFR Part: 
CFR Title: 

Content:
ovided herein for the review of newly developed software provides the technical background pertinent to evaluating the use of the engineering judgment and compensating factors provisions. The standard requires the acceptance, and its basis, to be documented and maintained with the qualification documentation. To demonstrate reasonable assurance, the acceptance process for most PDS can be expected to comprise a variety of technical activities conducted in significant detail. Guidance on these activities has been provided in EPRI TR-106439. The NRC has issued a safety evaluation report (SER) on the EPRI guideline in which it is determined that “TR-106439 contains an acceptable method for dedicating commercial-grade digital equipment for use in nuclear power plant safety applications.” Appendix 7.0-A-18 Revision 6 – August 2016 If the guidance in EPRI TR-106439 is applied in the dedication of a component, the following items should be noted by the reviewer: • EPRI TR-106439 is not intended to be used as a detailed “how-to” manual. There may be significant variation in specific steps taken depending on vendors, components, and applications. Detailed information, in addition to that provided in the report examples, will be needed to perform an actual commercial dedication. Use of EPRI TR-106439 in connection with a license amendment or an evaluation under 10 CFR 50.59, “Changes, Tests, and Experiments,” should include descriptions of the alternatives selected and deviations from the guidance in the documentation of the acceptance process. • The dedication effort may be “graded” based on its safety significance and relative complexity. • EPRI TR-106439 references EPRI NP-5652, which discusses four methods for use in commercial dedication: (1) special tests and inspections, (2) commercial- grade survey of the supplier, (3) source verification, and (4) an acceptable supplier or item performance record. As noted in EPRI TR-106439, supported by Generic