ML18137A136
| ML18137A136 | |
| Person / Time | |
|---|---|
| Issue date: | 05/17/2018 |
| From: | Brady B M NRC/NRR/DMLR/MRPB |
| To: | |
| Brady B M, NRR-DMLR 415-2981 | |
| Shared Package | |
| ML18137A131 | List: |
| References | |
| Download: ML18137A136 (12) | |
Text
SUBSEQUENT LICENSE RENEWALGUIDANCE AND PROCESSBennett BradyNRR/DMLR/MRPBMay 17, 20181 SLR Regulatory and Technical Development*2008 and 2011oInternational workshops on long-term operations defined major issues for SLR:reactor pressure vessel neutron embrittlement at high fluence; irradiation-assisted stress corrosion cracking of reactor internals and primary system components; concrete and containment degradation, and electrical cable qualification and condition assessment2 SLR Regulatory and Technical Development (cont)*2011 -2014 NRC begins defining potential regulatory changesoWorking group of program managers, technical experts and senior level advisorsoPublic meetings to solicit stakeholder input*SECY 14-0016 -proposed a rule change for a more efficient process3 SLR Regulatory and Technical Development (cont)*SECY 14-0016 -proposed a rule change for a more efficient process*SRM to SECY 14-0016 -Did not approve the staff's recommendationoRevise guidanceoKeep the Commission informed on the progress in resolving the major technical issues4 SLR Technical Development*2011-2014 -Collectedproposed changes to technical guidanceoAging Management Program (AMP) Effectiveness AuditsoReview of the draft Expanded Materials Degradation AssessmentoInput from industry and staff on needed changes*2014 -Began expert panel meetings to disposition proposed changes*2015 -Draft guidance documents published for public comment5 SLR TechnicalDevelopment (cont)*February 2017 -Engaged ACRS on draft guidance documents*July 2017 -Final GALL-SLR (NUREG-2191, Vols. 1 and 2) and SRP-SLR (NUREG-2192) published*December 2017 -Published companion documents oNUREG-2221 (Technical Bases for Changes in the Subsequent License Renewal Guidance Documents, NUREG-2191 and NUREG-2192), and oNUREG-2222 (Disposition of Public Comments on the Draft Subsequent License Renewal Guidance Documents, NUREG- 6 Regulatory Guides*December 2017 -NRC issues letter providing interim endorsement of NEI 17-01, Industry Guidance for Implementing the Requirements of 10 CFR Part 54 for Subsequent License Renewal, Revision 0 Industry developing NEI 17-01, until the end of 2019NRC will revise RG 1.188, Revision 1, standard content and format for license renewal applications7 Significant Changes in the Guidance Documents*New GALL-SLR AMPs*Fluence Monitoring *High Voltage Insulators*Deleted AMPs for*Feedwater nozzle and control rod drive return line nozzle*Withdrawal and testing of at least one capsule addressing the subsequent PEO (if specified criteria not already met)8 Significant Changes in the Guidance Documents (cont)*A plant-specific data gap analysis for inspection of PWR reactor vessel *to address differences from first license renewal period to subsequent license renewal period*Expanded Electrical Insulation of Cables AMP from one AMP to three AMPs -to address aging of submerged cables at different voltages*Aging management of concrete-Updated for alkali-silica reaction-Added further evaluation for irradiation of concrete*Added over 1035 new items to GALL-SLR tables9 SLR Review Optimization Efforts*Piloted on the River Bend license renewal review*Pre-Submittal Meetings*Environmental at least 12 months prior*Safety at least 6 months prior*SLRA acceptance review performed by technical staff*Schedule initiates on acceptance of the SLRA (18 months) 10 SLR Review Optimization*Applicant provides access to electronic portal (no later than acceptance of the SLRA in order to support the review schedule) *Aging Management Audits (Safety)oOffsite Aging Management Program Operating Experience AuditoIn-Office Aging Management Audit via telecom/webinar breakout sessionsoOn-Site Aging Management Audit with regional participation to walk down specific material conditions and plant configurations11 SLR Review Optimization*Documents and meetingsoDraft SEIS public meeting if necessary (environmental)oAdvisory Committee on Reactor Safeguards (ACRS) meetings on safety review12