Technical Bases for Changes in the Subsequent License Renewal Guidance Documents, NUREG–2191, Revision 1, Draft Report for Comment and NUREG–2192, Revision 1 - Draft Report for Comment (NUREG-2221, Supplement 1)

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Manuscript Completed: July 2023
Date Published: July 2023

Office of Nuclear Reactor Regulation
U.S. Nuclear Regulatory Commission
Washington, DC 20555-0001

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Abstract

This document, Draft NUREG-2221, Revision 0, Supplement 1, "Technical Bases for Changes in the Subsequent License Renewal Guidance Documents, Draft NUREG–2191, Revision 1, and Draft NUREG–2192, Revision 1, Draft Report for Comment" Supplement 1 (NUREG-2221, Supplement 1) is a knowledge management and knowledge transfer document associated with Draft NUREG–2191, Revision 1, "Generic Aging Lessons Learned for Subsequent License Renewal (GALL-SLR) Draft Report for Comment," (GALL-SLR Report, Revision 1, GALL-SLR Report, or simply GALL-SLR), and Draft NUREG–2192, Revision 1, "Standard Review Plan for Review of Subsequent License Renewal Applications for Nuclear Power Plants, Draft Report for Comment" (SRP-SLR Revision 1, or simply SRP-SLR).

The initial iteration of NUREG-2221, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17362A126) documented the technical changes and bases that were made from the guidance contained in NUREG–1801, Revision 2, "Generic Aging Lessons Learned (GALL) Report," (ADAMS Accession No. ML103490041), for utilities applying for first license renewal, to the updated guidance for utilities wishing to apply for subsequent license renewal (i.e., for operation from 60 to 80 years), published as NUREG-2191, Revision 0 (ADAMS Accession Nos. ML17187A031, and ML17187A204, for Volumes 1 and 2 respectively) (GALL-SLR, Revision 0) in July 2017. The initial iteration NUREG-2221, also documented the technical changes and bases for SLR that were made from the guidance contained in Revision 2 of NUREG–1800, "Standard Review Plan for Review of License Renewal Applications for Nuclear Power Plants," (ADAMS Accession No. ML103490036) (SRP-LR) to the updated guidance of NUREG–2192, Revision 0,"Standard Review Plan for Review of Subsequent License Renewal Applications for Nuclear Power Plants" (ADAMS Accession No. ML17188A158)(SRP-SLR, Revision 0). Consequently, that document (initial NUREG-2221) provided the underlying rationale that the U.S. Nuclear Regulatory Commission staff had used to develop the subsequent license renewal guidance documents.

This publication is a draft supplement to the initial NUREG-2221, and it documents the technical changes that were made in concurrent updates to the subsequent license renewal guidance documents in 2023. This document provides the underlying rationale that the NRC staff used to develop Draft NUREG-2191, Revision 1, and Draft NUREG-2192, Revision 1.