ML21025A004

Risk-Informed Process for Evaluations (RIPE) - NRC Public Meeting Presentation Slides

ML21025A004
Person / Time
Site:	Palo Verde
Issue date:	01/25/2021
From:	Siva Lingam Plant Licensing Branch IV
To:
Lingam S, NRR/DIRL/LPL4, 301-415-1564
Shared Package
ML21025A005	List: ML21025A004
References
EPID L-2019-LRO-0074
Download: ML21025A004 (9)

Text

A Map of the Universe of Findings High safety Not clearly within the Clearly within the Address licensing basis licensing basis issues in this Evaluate issue to determine Address issue with appropriate tools such as:

quadrant regulatory actions with tools such as:

• Enforcement

• 50.54(f) or generic communication

• Order

• Backfitting

• Inspect licensee corrective actions

• Generic issue process

• Use LIC-504 and TIA as applicable Not clearly within the licensing basis Clearly within the licensing basis but clearly low safety significance Address finding/violation with appropriate tools EXIT: (i.e., either the licensee comes into compliance

• Document decision or proposes changes to the licensing basis):

• Make public record

• Inspect licensee corrective actions (e.g., 50.59, PI&R)

• Change the licensing basis (LAR, relief, exemptions, etc.)

• Assess adequacy of the requirement (i.e., rulemaking) 2 Low safety

Risk-informed Process for Evaluations (RIPE)

• RIPE establishes a more efficient process to review licensing actions that address low safety significance (LSS) issues.

• RIPE leverages existing regulations and approved risk-informed initiatives to create a streamlined NRC review process for plant-specific exemption and license amendment requests for LSS issues.

• Adoption of RIPE was recommended in a memo to the NRR Office Director dated January 5, 2021 (ML20261H428).

• The NRR Office Director approved RIPE by memo dated January 7, 2021 (ML21006A324).

3

What is RIPE?

Inspection/Enforcement Does not involve inspection and enforcement of Does support how those violations and findings are findings and violations. corrected.

Evaluation Does not change how licensees make the determination Does inform the level-of-effort NRC staff will expend to concerning validity of licensing request. conduct review and approval/denial of license requests.

Regulations Does address unique plant non-compliance issues that Does not generically apply to regulatory issues and is would be specific to a narrow portion of the regulation not intended to displace rulemaking.

for that licensee.

4

How Does RIPE Work?

Leverages work done in previous risk-informed initiatives Integrated Decision-making Panel (IDP) Reviews Key IDP Engineering Principles RIPE (using existing regulations)

Demonstrates Probabilistic Risk Assessment TSTF-Acceptability 505 5

Implementation of RIPE Safety Impact Submittal to NRC Approval Characterization Process Licensee documents the NRC reviews Licensee exemption or Licensee licensing action identifies amendment requests using non-request using licensing action streamlined compliance Guidelines for per streamlined review guidance that has a Analyzing the review process in TSG-DORL-minimal Safety Impact of 2021-01 safety impact Issues (ML20261H473)

(ML20261H462)

NRC Actions 6

Licensee Actions

Why RIPE?

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

• Address low safety compliance 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 applications.

7

Whats Next?

• Explore expansion of RIPE to include:

- Exemption and amendment requests from licensees that do not have an approved TSTF-505 (Risk-Informed Completion Times) amendment, but have an approved TSTF-425 (Surveillance Frequency Control) amendment or can provide other forms of risk information.

- Exemption and amendment requests in other areas (EP, Security, etc)

• Continue outreach to interested parties 8

Questions?

Send additional feedback or questions to:

Antonios.Zoulis@nrc.gov 9