ML21167A154
| ML21167A154 | |
| Person / Time | |
|---|---|
| Issue date: | 06/16/2021 |
| From: | Antonios Zoulis NRC/NRR/DRA |
| To: | |
| Vasavada S | |
| Shared Package | |
| ML21167A163 | List: |
| References | |
| Download: ML21167A154 (7) | |
Text
Risk-informed Process for Evaluations (RIPE)
- RIPE establishes a more efficient process to review licensing actions that address low safety significance (LSS) issues within the licensing basis.
- Adoption of RIPE was recommended in a memo to the NRR Office Director dated January 5, 2021 (ML20261H428).
- Enclosure 1 - Guidelines for Characterizing the Safety Impact of Issues (ML20261H462)
- Enclosure 2 - Temporary Staff Guidance TSG-DORL-2021-01 (ML20261H473)
- The NRR Office Director approved RIPE by memo dated January 7, 2021 (ML21006A324).
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Leverage work done in previous risk-informed initiatives Integrated Decision-making Panel (IDP) Reviews Key IDP Engineering Principles RIPE (using existing regulations)
Demonstrated Probabilistic Risk Assessment PRA Acceptability 3
Whats Next?
- Expand RIPE to generic reviews - Topical Reports
- How do we show PRA Acceptability?
- GAET/IDP should be equivalent
- As part of 50.59, can we codify RIPE? Allow licensees to make changes without NRC approval
- Requires rulemaking
- Expand systematic characterization process to other areas such as EP and Security
- Must develop process to assess these issues without PRA
- Engage stakeholders to buy into concept.
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Whats Next? (Cont.)
- RG 1.174 allows for risk-informing exemptions. Can we develop more clarity on how to use risk to inform the special circumstances to support justification of the exemption RIPE+:
- Specifically:
- (iii) Compliance would result in undue hardship or other costs that are significantly in excess of those contemplated when the regulation was adopted, or that are significantly in excess of those incurred by others similarly situated; or
- (iv) The exemption would result in benefit to the public health and safety that compensates for any decrease in safety that may result from the grant of the exemption; 5
Why RIPE?
- Focus NRC and licensee resources on the most safety significant issues
- Address low safety significance compliance issues in an efficient and predictable manner consistent with our Principles of Good Regulation
- Leverage existing regulations and risk insights
- Incentivize the further development and use of probabilistic risk assessment models and applications 6
Questions?
Send additional feedback or questions to:
Antonios.Zoulis@nrc.gov 7