ML23192A010

NRC RIPE 7-11-23 Public Meeting Presentation Slides

ML23192A010
Person / Time
Site:	Palo Verde
Issue date:	07/11/2023
From:	Siva Lingam Plant Licensing Branch IV
To:
Lingam S, 301-415-1564
References
Download: ML23192A010 (1)

Text

Purpose

• Benefits of risk-informed process for evaluations (RIPE)

• Best practices and planned guidance updates as a result of the final observations from the first RIPE review.

- Updates to NRR Temporary Staff Guidance TSG-DORL-2021-01, Risk-Informed Process for Evaluations, Revision 2 (ML22088A136).

- Updates to the Guidelines for Characterizing the Safety Impact of Issues, Revision 2 (ML22088A135).

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Benefits of RIPE

• Focus NRC and licensee resources on the most safety significant issues

• Address very low safety significant issues in an efficient and predictable manner consistent with NRC's Principles of Good Regulation

• Leverage existing regulations and risk insights

• Incentivize the further development and use of probabilistic risk assessment models and risk-informed decision making 3

Best Practices Identified from First RIPE Review (for Licensee Consideration)

• Consider requesting a pre-submittal meeting before submitting a request using RIPE. Staff recommends licensees address the following during the pre-submittal meeting:

- A description of the issue and whether compliance with any regulations will be impacted

- How the screening questions will be answered

- How risk was calculated, including a description of any surrogates used, and the risk results

- Ensure application is consistent with 50.90 and 50.12

- Ensure application is consistent with RG1.174

• Consider providing NRC staff access to the integrated decisionmaking panel (IDP) report on a secure portal when the RIPE request is submitted to support efficient staff review.

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Planned Updates to the RIPE Temporary Staff Guidance

• Provide clarifying information regarding defense in depth and safety margins review for very low safety significance issues.

• Provide clarifying information regarding the "no technical objections" review/schedule.

• Add clarifying information to support staff's review of performance monitoring.

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Planned Updates to Guidelines for Characterizing the Safety Impact of Issues

• Recommend that licensees request a pre-submittal meeting in preparation for a RIPE submittal.

• Recommend that licensees make the IDP report available for staff review via a secure portal.

• Provide additional details as to what documentation should be submitted as part of a RIPE submittal.

• Include guidance for assessing performance monitoring strategies as a part of a RIPE submittal.

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Path Forward

• The RIPE guidance documents have been revised (but not issued) based on recommendations from the first RIPE review.

• The staff is open to public and industry feedback on enhancing the process.

• The staff will consider feedback from this meeting before issuing the revised documents.

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Questions/Feedback?

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