ML25162A120

Proposed Limitations and Conditions to Be Contained in the Safety Evaluation for EPRI Report 3002025288, Enhanced Risk-Informed Categorization Methodology for Pressure Boundary Components

ML25162A120
Person / Time
Site:	Electric Power Research Institute
Issue date:	06/11/2025
From:	Licensing Processes Branch
To:
References
EPRI TR 3002025288, EPID L-2023-TOP-0031 pre-app, EPID L-2023-TOP-0045 pre-fee, EPID L-2023-NTR-0008 post-fee
Download: ML25162A120 (1)

Text

[Publish Date]

Safety Evaluation for a Topical Report Limitations and Conditions for EPRI Review Topical Report No.:

Electric Power Research Institute Technical Report No. 3002025288 Topical Report

Title:

Enhanced Risk-Informed Categorization Methodology for Pressure Boundary Components Sponsor:

Electric Power Research Institute (EPRI)

Summary of Request:

EPRI requested the U.S. Nuclear Regulatory Commission to review and approve EPRI Technical Report 3002025288, Enhanced Risk-Informed Categorization Methodology for Pressure Boundary Components, June 2023 (EPRI 2023a) Applicability: All plants licensed under the Atomic Energy Act of 1954, as amended, implementing Title 10 of the Code of Federal Regulation (10 CFR)

Section 50.69, Risk-informed categorization and treatment of structures, systems and components for nuclear power reactors, programs Submittal:

August 17, 2023, ADAMS Accession No. ML23234A266 (EPRI 2023a)

EPID No.:

L-2023-NTR-0008 Limitations - The NRC staff has identified the following limitations for the use of EPRI TR 3002025288:

(1) When implementing this method as part of a 10 CFR 50.69 program, the licensee must review key assumptions and sources of uncertainty in the context of the application as part of Prerequisite 4.1.1.

Conditions - The NRC staff has identified the following condition for an applicant to reference EPRI TR 3002025288 in a LAR:

(1) As part of LAR to implement the passive categorization methodology in EPRI TR 3002025288, licensees shall clearly state that they meet the prerequisites for its use.

For Prerequisite 4.1.2, the licensee shall identify and describe the programs that are relied upon to meet the associated requirements to a degree consistent with the examples in EPRI TR 3002025288. If there are deviations from the given examples, the licensee shall provide additional justification as to why the licensees programs are considered to be an equally robust mechanism for ensuring pressure boundary integrity.