ML22007A073

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DG-1391 (RG 1.163 Rev 1) Federal Register Notice
ML22007A073
Person / Time
Issue date: 11/10/2022
From: Meraj Rahimi
NRC/RES/DE/RGDB
To:
Song K
Shared Package
ML21271A021 List:
References
RG 1.163 Rev 1, 7590-01-P, NRC 2022-0063 DG-1391
Download: ML22007A073 (5)


Text

[7590-01-P]

NUCLEAR REGULATORY COMMISSION

[NRC 2022-0063]

Performance-Based Containment Leak Test Program AGENCY: Nuclear Regulatory Commission ACTION: Draft regulatory guide; request for comment.

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment a draft regulatory guide (DG), DG-1391, Performance-Based Containment Leak Test Program. This DG is proposed Revision 1 to regulatory guide (RG) 1.163 of the same name. The proposed revision provides guidance on an acceptable performance-based leak-test program, leakage-rate test methods, procedures, and analyses that may be used to comply with NRC regulations.

DATES: Submit comments by December 19, 2022. Comments received after this date will be considered if it is practical to do so, but the NRC is able to ensure consideration only for comments received on or before this date.

ADDRESSES: You may submit comments by any of the following methods; however, 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-2022-0063. Address questions about Docket IDs in Regulations.gov to Stacy Schumann; telephone: 301-415-0624; email: Stacy.Schumann@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 submitting comments, see Obtaining Information and Submitting Comments in the SUPPLEMENTARY INFORMATION section of this document.

FOR FURTHER INFORMATION CONTACT: Brian Lee, Office of Nuclear Reactor Regulation, telephone: 301-415-2916, email: Brian.Lee@nrc.gov, and Kyle Song, Office of Nuclear Regulatory Research, telephone: 301-415-3612, email:

Kyle.Song@nrc.gov. Both are staff members of the 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-2022-0063 when contacting the NRC about the availability of information for this action. You may obtain publicly available information related to this action by any of the following methods:

  • NRCs Agencywide Documents Access and Management System (ADAMS): You may obtain publicly available documents online in the ADAMS Public Documents collection at https://www.nrc.gov/reading-rm/adams.html. To begin the search, select Begin Web-based ADAMS Search. For problems with 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 ADAMS accession number 2

for each document referenced (if it is available in ADAMS) is provided the first time that it is mentioned in this document.

  • 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 appointment to visit the PDR, please send an email to PDR.Resource@nrc.gov or call 1-800-397-4209 or 301-415-4737, between 8:00 a.m. and 4:00 p.m. (ET), Monday through 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-2022-0063 in your comment submission.

The NRC cautions you not to include identifying or contact information 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 enter the comment submissions into ADAMS. The NRC does not routinely edit comment submissions to remove identifying or contact information.

If you are requesting or aggregating comments from other persons 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 disclosed in their comment submission. Your request should state that the NRC does not routinely edit comment submissions to remove such information before making the comment submissions available to the public or entering the comment into ADAMS.

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II. Additional Information The NRC is issuing for public comment a DG in the NRCs Regulatory Guide series. This series was developed to describe methods that are acceptable to the NRC staff for implementing specific parts of the agencys regulations, to explain techniques that the staff uses in evaluating specific issues or postulated events, and to describe information that the staff needs in its review of applications for permits and licenses.

The DG, entitled Performance-Based Containment Leak Test Program, is temporarily identified by its task number, DG-1391 (ADAMS Accession No. ML22006A317).

This revision of the guide (Revision 1) addresses new guidance for implementing Option B Performance-Based Requirements of Appendix J, Primary Reactor Containment Leakage Testing for Water-Cooled Power Reactors, of Part 50 of title 10 of the Code of Federal Regulations (10 CFR). Specifically, extending Type A test intervals up to 15 years, extending Type C test intervals up to 75 months, and an update to ANSI/ANS-56.8-2020 for acceptable industry standards on technical methods and techniques for performing Types A, B, and C tests. This proposed revised guide contains information specific for a leakage rate testing program for both older plants and newer reactors licensed under both 10 CFR Parts 50 and 52.

The staff is also issuing for public comment a draft regulatory analysis (ADAMS Accession No. ML22007A009). The staff developed the regulatory analysis to assess the value of revising RG 1.163 as well as alternative courses of action.

III. Backfitting, Forward Fitting, and Issue Finality Issuance of DG-1391, if finalized, would not constitute backfitting as defined in 10 CFR 50.109, Backfitting, and as described in NRC Management Directive (MD) 8.4, Management of Backfitting, Forward Fitting, Issue Finality, and Information Requests; 4

would not constitute forward fitting as that term is defined and described in MD 8.4; or affect the issue finality of any approval issued under 10 CFR Part 52, Licenses, certifications, and approvals for nuclear power reactors. As explained in DG-1391, applicants and licensees would not be required to comply with the positions set forth in DG-1391.

IV. Submitting Suggestions for Improvement of Regulatory Guides A member of the public may, at any time, submit suggestions to the NRC for improvement of existing RGs or for the development of new RGs. Suggestions can be submitted on the NRCs public website at https://www.nrc.gov/reading-rm/doc-collections/reg-guides/contactus.html. Suggestions will be considered in future updates and enhancements to the Regulatory Guide series.

Dated: November 10, 2022.

For the Nuclear Regulatory Commission.

/RA/

Meraj Rahimi, Chief, Regulatory Guide and Programs Management Branch, Division of Engineering, Office of Nuclear Regulatory Research.

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