Document: NRC Regulatory Guide
Document ID: a5ee4c78-1135-4bb6-8d54-e974a3402f87
Document Type: regulatory_guide
Title: An Approach for Plant-Specific, Risk-Informed Decisionmaking: Graded Quality Assurance
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1221/ML12216A017.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.176
CFR Part: 
CFR Title: 

Content:
e relative importance to safety of plant equipment. In recognition of advances made in the state of the art in the probabilistic risk assessment (PRA) technology area, the NRC has made the decision to expand the use of PRA in the regulatory process. PRA provides insights that may be utilized by licensees to support the determination of the relative safety significance of plant equipment. The probabilistic insights help identify low safety-significant structures, systems, and components (SSCs) that are candidates for reductions in QA treatment. The end result of this process could be that licensees would have plant equipment that is categorized as safety-related and high safety-significant; safety-related and low safety- significant; non-safety-related and high safety- significant; and non-safety-related and low safety-significant. Grading of QA controls would vary commensurate with these categorizations. This regulatory guide provides guidance that could be used USNRC REGULATORY GUIDES Regulatory Guides are issued to describe and make available to the public such informa- tion as methods acceptable to the NRC staff for implementing specific parts of the Commission's regulations, techniques used by the staff in evaluating specific problems or postulated accidents, and data needed by the NRC staff in its review of applications for permits and licenses. Regulatory guides are not substitutes for regulations, and compli- ance with them is not required. Methods and solutions different from those set out in the guides will be acceptable if they provide a basis for the findings requisite to the issuance of continuance of a permit or license by the Commission. This guide was issued after consideration of comments received from the public. Com- ments and suggestions for improvements in these guides are encouraged at all times, and guides will be revised, as appropriate, to accommodate comments and to reflect new infor- mation or experience. Written comments may be submitted