ML22341A164
| ML22341A164 | |
| Person / Time | |
|---|---|
| Issue date: | 03/01/2023 |
| From: | Steven Lynch NRC/NRR/DANU/UARP |
| To: | |
| Hoellman J | |
| Shared Package | |
| ML22341A167 | List: |
| References | |
| NRC-2022-0215 | |
| Download: ML22341A164 (5) | |
Text
[7590-01-P]
NUCLEAR REGULATORY COMMISSION
[NRC-2022-0215]
Material Compatibility for non-Light Water Reactors
AGENCY: Nuclear Regulatory Commission.
ACTION: Draft interim staff guidance; request for comment.
SUMMARY
- The U.S. Nuclear Regulatory Commission (NRC) is issuing for pub lic
comment on its draft Interim Staff Guidance (ISG) Material Com patibility for non-Light
Water Reactors, DANU-ISG-2023-01. The purpose of this draft I SG is to assist the
NRC staff in reviewing certain applications for construction an d operation of non-light
water reactor designs, including power and non-power reactors.
DATES: Submit comments by [INSERT DATE 60 DAYS AFTER DATE OF
PUBLICATION IN THE FEDERAL REGISTER]. Comments received after this date will
be considered if it is practical to do so, but the Commission i s able to ensure
consideration only for comments received before this date.
ADDRESSES: You may submit comments by any of the following methods; howeve r,
the NRC encourages electronic comment submission through the Federal rulemaking
website:
- Federal rulemaking website: Go to https://www.regulations.gov and search
for Docket ID NRC-2022-0215. Address questions about Docket IDs in Regulations.gov
to Stacy Schumann; telephone: 301-415-0624; email: Stacy.Schu mann@nrc.gov. For
technical questions, contact the individuals listed in the For Further Information Contact
section of this document.
- Mail comments to: Office of Administration, Mail Stop: TWFN-7-A60M,
U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, ATTN: Program
Management, Announcements and Editing Staff.
For additional direction on obtaining information and submittin g comments, see
Obtaining Information and Submitting Comments in the SUPPLEME NTARY
INFORMATION section of this document.
FOR FURTHER INFORMATION CONTACT: Meg Audrain, telephone: 301-415-2133,
email: Margaret.Audrain@nrc.gov and Jordan Hoellman, telephone : 301-415-5481,
email: Jordan.Hoellman2@nrc.gov. Both are staff of the Office of Nuclear Reactor
Regulation, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001.
SUPPLEMENTARY INFORMATION:
I. Obtaining Information and Submitting Comments
A. Obtaining Information
Please refer to Docket ID NRC-2022-0215 when contacting the NRC about the
availability of information for this action. You may obtain pu blicly available information
related to this action by any of the following methods:
- Federal Rulemaking Website: Go to https://www.regulations.gov and
search for Docket ID NRC-2022-0215.
- NRCs Agencywide Documents Access and Management System
(ADAMS): You may obtain publicly available documents online in the ADA MS Public
Documents collection at https://www.nrc.gov/reading-rm/adams.ht ml. To begin the
search, select Begin Web-based ADAMS Search. For problems wi th ADAMS, please
contact the NRCs Public Document Room (PDR) reference staff at 1-800-397-4209,
301-415-4737, or by email to PDR.Resource@nrc.gov. The draft I SG, Material
2 Compatibility for non-Light Water Reactors, DANU-ISG-2023-01" i s available in ADAMS
under Accession No. ML22203A175.
- NRCs PDR: You may examine and purchase copies of public documents,
by appointment, at the NRCs PDR, Room P1 B35, One White Flint North, 11555
Rockville Pike, Rockville, Maryland 20852. To make an appointm ent to visit the PDR,
please send an email to PDR.Resource@nrc.gov or call 1-800-397-4209 or 301-415-
4737, between 8 a.m. and 4 p.m. eastern time (ET), Monday throu gh Friday, except
Federal holidays.
B. Submitting Comments
The NRC encourages electronic comment submission through the Federal
rulemaking website (https://www.regulations.gov). Please include Docket ID NRC-
2022-0215 in your comment submission.
The NRC cautions you not to include identifying or contact info rmation that you
do not want to be publicly disclosed in your comment submission. The NRC will post all
comment submissions at https://www.regulations.gov as well as e nter the comment
submissions into ADAMS. The NRC does not routinely edit commen t submissions to
remove identifying or contact information.
If you are requesting or aggregating comments from other person s for
submission to the NRC, then you should inform those persons not to include identifying
or contact information that they do not want to be publicly dis closed in their comment
submission. Your request should state that the NRC does not routinely edit comment
submissions to remove such information before making the commen t submissions
available to the public or entering the comment into ADAMS.
3 II. Background
As part of its review of advanced non-light water reactor appli cations, the NRC
determines whether materials proposed to be used will allow com ponents to fulfill design
requirements for the design life, or that adequate surveillance and monitoring programs
are in place. NRC regulations in part 50 and part 52 of title 10 of the Code of Federal
Regulations (10 CFR) include requirements for material qualification and p erformance
monitoring. The NRC endorsed American Society of Mechanical En gineers (ASME)
Code Section III, Division 5, High Temperature Reactors (Sect ion III-5), with conditions,
in Revision 2 of Regulatory Guide 1.87, Acceptability of ASME Code,Section III,
Division 5, High Temperature Reactors, (ADAMS Accession No. ML22101A263).
III. Discussion
The purpose of this draft ISG is to aid the NRC staff reviewing non-light water
reactor applications for a construction permit or operating lic ense under 10 CFR part 50
or for a design certification, combined license, standard desig n approval, or
manufacturing license under 10 CFR part 52 that propose to use materials allowed
under Section III-5. Section III-5 specifies the mechanical pr operties and allowable
stresses to be used for design of components in high temperatur e reactors. Because
Section III-5 states that it does not provide methods to evalua te deterioration that may
occur in service as a result of corrosion, mass transfer phenom ena, radiation effects, or
other material instabilities, this draft ISG identifies informa tion that the staff should
consider as part of its review of a non-light water reactor app lication to review applicable
4 design requirements including qualification and monitoring prog rams for safety-
significant structures, systems, and components.
Dated: March 1, 2023.
For the Nuclear Regulatory Commission.
/RA/
Steven T. Lynch, Chief, Advanced Reactor Policy Branch, Division of Advanced Reactors and Non-Power Production and Utilization Facilities, Office of Nuclear Reactor Regulation.
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