ML18051A199
| ML18051A199 | |
| Person / Time | |
|---|---|
| Site: | Technical Specifications Task Force |
| Issue date: | 02/15/2018 |
| From: | Lashley P Technical Specifications Task Force |
| To: | Office of Nuclear Reactor Regulation |
| Honcharik M | |
| Shared Package | |
| ML18051A193 | List: |
| References | |
| Download: ML18051A199 (7) | |
Text
Technical Specifications Task Force TSTF A Joint Owners Group Activity Approval of ASME Code Cases for Industry Use Phil Lashley Technical Specifications Task Force 1
Technical Specifications Task Force TSTF A Joint Owners Group Activity Introduction
- Current approval of ASME Code Cases for industrywide use is governed by 10 CFR 50.55a
- 10 CFR 50.55a(a)(1)(iii) incorporates certain code cases, like N5133, N7221, N7294, etc.
- 10 CFR 50.55a(a)(3) incorporates regulatory guides that list the ASME Code Cases that are generically approved for industry.
- RG 1.147 for inservice inspection
- RG 1.192 for operation and maintenance.
2
Technical Specifications Task Force TSTF A Joint Owners Group Activity RG Revision
- RG revision is a significant regulatory effort:
- RG 1.84
- Revision 35 10/2010
- Revision 36 08/2014
- Revision 37 01/2018
- RG 1.147
- Revision 16 10/2010
- Revision 17 08/2014
- Revision 18 01/2018
- RG 1.192
- Initial Revision 06/2003
- Revision 1 10/2014
- Revision 2 01/2018 3
Technical Specifications Task Force TSTF A Joint Owners Group Activity Operating Experience
- Between revisions, licensee use of new/updated Code Cases requires individual submittals, often in shortened timeframe
- Code Case N5134
- ASME approved 5/7/2014
- Arkansas Nuclear One emergency request submitted 10/31/2014
- Exelon fleet request submitted 1/28/2016
- Fermi request submitted 8/15/17
- Cooper request submitted 8/17/17
- Perry emergency request submitted 8/20/17
- Regulator and licensee efficiencies could be realized if individual Code Cases could be approved between RG and regulation revisions without licensee submittals.
4
Technical Specifications Task Force TSTF A Joint Owners Group Activity Industry Proposal NearTerm Approach
- Industry selects ASMEapproved Code Cases with generic applicability
- Industry submits a single combined relief request for all applicable plants using the current regulatory process
- NRC SE would list any limitations or conditions
- NRC SE would be part of all licensee dockets 5
Technical Specifications Task Force TSTF A Joint Owners Group Activity Industry Proposal LongTerm Approach
- Industry would request a revision to 10 CFR 50.55a to incorporate an expedited review process for ASMEapproved Code Cases
- Would allow NRC to publish a SE with any relative limitations or conditions without a licensee submittal
- Would allow licensees to use NRCapproved Code Cases between RG revisions and 10 CFR 50.55a rulemaking 6
Technical Specifications Task Force TSTF A Joint Owners Group Activity Discussion 7