ML18137A136
| ML18137A136 | |
| Person / Time | |
|---|---|
| Issue date: | 05/17/2018 |
| From: | Bennett Brady NRC/NRR/DMLR/MRPB |
| To: | |
| Brady B, NRR-DMLR 415-2981 | |
| Shared Package | |
| ML18137A131 | List: |
| References | |
| Download: ML18137A136 (12) | |
Text
SUBSEQUENT LICENSE RENEWAL GUIDANCE AND PROCESS Bennett Brady NRR/DMLR/MRPB May 17, 2018 1
SLR Regulatory and Technical Development
- 2008 and 2011 o International 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 2
assessment
SLR Regulatory and Technical Development (cont)
- 2011 - 2014 NRC begins defining potential regulatory changes o Working group of program managers, technical experts and senior level advisors o Public meetings to solicit stakeholder input
- SECY 14-0016 -proposed a rule change for a more efficient process 3
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 staffs recommendation o Revise guidance o Keep the Commission informed on the progress in resolving the major technical issues 4
SLR Technical Development
- 2011-2014 -Collected proposed changes to technical guidance o Aging Management Program (AMP) Effectiveness Audits o Review of the draft Expanded Materials Degradation Assessment o Input from industry and staff on needed changes
- 2014 -Began expert panel meetings to disposition proposed changes
- 2015 - Draft guidance documents published for public comment 5
SLR Technical Development (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- February 2017 - Engaged ACRS on draft guidance documents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 o NUREG-2221 (Technical Bases for Changes in the Subsequent License Renewal Guidance Documents, NUREG-2191 and NUREG-2192), and o NUREG-2222 (Disposition of Public Comments on the Draft 6
Subsequent License Renewal Guidance Documents, NUREG-
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 2019 NRC will revise RG 1.188, Revision 1, standard content and format for license renewal applications 7
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
- 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 tables 9
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) 1 0
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) o Offsite Aging Management Program Operating Experience Audit o In-Office Aging Management Audit via telecom/webinar breakout sessions o On-Site Aging Management Audit with regional participation to walk down specific material conditions and plant configurations 1 1
SLR Review Optimization
- Documents and meetings o Draft SEIS public meeting if necessary (environmental) o Advisory Committee on Reactor Safeguards (ACRS) meetings on safety review 1
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