[Federal Register Volume 77, Number 215 (Tuesday, November 6, 2012)]
[Notices]
[Pages 66649-66650]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-27073]


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NUCLEAR REGULATORY COMMISSION

[NRC-2012-0232]


Proposed Revision to Probabilistic Risk Assessment and Severe 
Accident Evaluation for New Reactors

AGENCY: Nuclear Regulatory Commission.

ACTION: Standard review plan-draft section revision; extension of 
comment period.

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SUMMARY: On October 9, 2012 (77 FR 61446), the U.S. Nuclear Regulatory 
Commission (NRC or the Commission), issued a NUREG-0800, ``Standard 
Review Plan for the Review of Safety Analysis Reports for Nuclear Power 
Plants: LWR Edition,'' on a proposed Revision 3 to its Standard Review 
Plan (SRP), Section 19.0 ``Probabilistic Risk Assessment and Severe 
Accident Evaluation for New Reactors.'' The NRC is extending the public 
comment period for its SRP, Section 19.0 from November 8, 2012 to 
December 8, 2012.

ADDRESSES: You may access information and comment submissions related 
to this document, which the NRC possesses and are publically available, 
by searching on http://www.regulations.gov under Docket ID NRC-2012-
0232. You may submit comments by any of the following methods:
     Federal Rulemaking Web site: Go to http://www.regulations.gov and search for Docket ID NRC-2012-0232. Address 
questions about NRC dockets to Carol Gallagher; telephone: 301-492-
3668; email: Carol.Gallagher@nrc.gov.
     Mail comments to: Cindy Bladey, Chief, Rules, 
Announcements, and Directives Branch (RADB), Office of

[[Page 66650]]

Administration, Mail Stop: TWB-05-B01M, U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001.
     Fax comments to: RADB at 301-492-3446.
    For additional direction on accessing information and submitting 
comments, see ``Accessing Information and Submitting Comments'' in the 
SUPPLEMENTARY INFORMATION section of this document.

FOR FURTHER INFORMATION CONTACT: Ms. Amy E. Cubbage, Office of New 
Reactors, U.S. Nuclear Regulatory Commission, Washington, DC 20555-
0001; telephone at 301-415-2875 or email at Amy.Cubbage@nrc.gov.

SUPPLEMENTARY INFORMATION: 

I. Accessing Information and Submitting Comments

A. Accessing Information

    Please refer to Docket ID NRC-2012-0232 when contacting the NRC 
about the availability of information regarding this document. You may 
access information related to this document by any of the following 
methods:
     Federal Rulemaking Web site: Go to http://www.regulations.gov and search for Docket ID NRC-2012-0232.
     NRC's Agencywide Documents Access and Management System 
(ADAMS): You may access publicly-available documents online in the NRC 
Library at http://www.nrc.gov/reading-rm/adams.html. To begin the 
search, select ``ADAMS Public Documents'' and then select ``Begin Web-
based ADAMS Search.'' For problems with ADAMS, please contact the NRC's 
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 
for each document referenced in this notice (if that document is 
available in ADAMS) is provided the first time that a document is 
referenced. The SRP, Section 19.0, is under ADAMS Accession No. 
ML12132A481.
     NRC's PDR: You may examine and purchase copies of public 
documents at the NRC's PDR, Room O1-F21, One White Flint North, 11555 
Rockville Pike, Rockville, Maryland 20852.

B. Submitting Comments

    Please include Docket ID NRC-2012-0232 in the subject line of your 
comment submission, in order to ensure that the NRC is able to make 
your comment submission available to the public in this docket.
    The NRC cautions you not to include identifying or contact 
information that that you do not want to be publicly disclosed in your 
comment submission. The NRC will post all comment submissions at http://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 submissions into ADAMS.

II. Further Information

    The Office of New Reactors and the Office of Nuclear Reactor 
Regulation are revising SRP Section 19.0, which updates Revision 2 
(ADAMS Accession No. ML071700652) dated June 2007, to reflect the 
changes as listed in the description of changes. These changes include 
(1) incorporation of guidance previously contained in Interim Staff 
Guidance (ISG), DC/COL-ISG-003 (ADAMS Accession No. ML081430087) 
concerning the review of probabilistic risk assessment (PRA) 
information and severe accident assessments for new reactors submitted 
to support design certification (DC) and combined license (COL) 
applications, (2) incorporation of guidance previously contained in ISG 
DC/COL-ISG-020 (ADAMS Accession No. ML100491233) concerning review of 
information from PRA-based seismic margin analyses submitted in support 
of DC and COL applications, (3) incorporation of guidance previously 
contained in ISG DI&C/COL-ISG-003 (ADAMS Accession No. ML080570048) 
concerning review of digital instrumentation and control system PRAs, 
including common cause failures in PRAs and uncertainty analysis 
associated with new reactor digital systems, and (4) incorporation of 
additional procedures for review of PRA information and severe accident 
assessments developed during NRC reviews of DC and COL applications 
completed after ISG DC/COL-ISG-003 was issued. A redline document 
comparing Revision 2 and the current proposed Revision 3 can be found 
under ADAMS Accession No. ML12153A008. The NRC staff issues Federal 
Register notices to facilitate timely implementation of the current 
staff guidance and to facilitate activities associated with the review 
of amendment applications. The NRC staff intends to incorporate the 
final approved guidance into the next revision of NUREG-0800, SRP 
Section 19.0 Revision 3. Therefore, the comment submittal period is 
extended from the original date of November 8, 2012 to December 8, 
2012.

    Dated at Rockville, Maryland, this 25th day of October 2012.

    For the Nuclear Regulatory Commission.
Amy E. Cubbage,
Chief, Policy Branch, Division of Advanced Reactors and Rulemaking, 
Office of New Reactors.
[FR Doc. 2012-27073 Filed 11-5-12; 8:45 am]
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