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

On this page:

• Publication Information
• Abstract

Download complete document

• NUREG-2221, Supplement 1 (PDF – 215 MB)

Publication Information

Manuscript Completed: April 2025
Date Published: July 2025

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

Availability Notice

Abstract

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

The initial iteration of NUREG-2221, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML17362A126 [NRC 2017-TN9924]) 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 [NRC 2010-TN7791]), 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 [NRC 2017-TN7797], and ML17187A204 [NRC 2017-TN9902], 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 [NRC 2017-TN9323])(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 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 2024. This document provides the underlying rationale that the NRC staff used to develop NUREG-2191, Revision 1, and NUREG-2192, Revision 1.

Supporting documents and references are listed in Chapters 5 and 6, respectively. Supporting documents are not specifically referenced in the report but are included because they contain relevant background information.