[Federal Register Volume 77, Number 85 (Wednesday, May 2, 2012)]
[Notices]
[Pages 26050-26051]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-10618]


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NUCLEAR REGULATORY COMMISSION

[NRC-2012-0100]


Burnup Credit in the Criticality Safety Analyses of Pressurized 
Water Reactor Spent Fuel in Transportation and Storage Casks

AGENCY: Nuclear Regulatory Commission.

ACTION: Draft interim staff guidance; request for comment.

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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC or the Commission) 
is issuing for public comment Draft Spent Fuel Storage and 
Transportation Interim Staff Guidance (SFST-ISG), SFST-ISG-8, Revision 
3, ``Burnup Credit in the Criticality Safety Analyses of PWR Spent Fuel 
in Transportation and Storage Casks.'' This SFST-ISG provides guidance 
for use by NRC staff when reviewing applications requesting burnup 
credit in the criticality safety analyses of pressurized water reactor 
spent nuclear fuel (SNF) in transportation packages and storage casks. 
The draft SFST-ISG proposes to revise the criticality safety review 
procedures and acceptance criteria contained in NUREG-1536, Revision 1, 
``Standard Review Plan for Spent Fuel Dry Storage Systems at a General 
License Facility,'' NUREG-1567, ``Standard Review Plan for Spent Fuel 
Dry Storage Facilities,'' and NUREG-1617, ``Standard Review Plan for 
Transportation Packages for Spent Nuclear Fuel.''

DATES: Submit comments by June 1, 2012. Comments received after this 
date will be considered, if it is practical to do so, but the NRC staff 
is able to ensure consideration only for comments received on or before 
this date.

ADDRESSES: You may access information and comment submissions related 
to this document, which the NRC possesses and is publicly available, by 
searching on http://www.regulations.gov under Docket ID NRC-2012-0100. 
You may submit comments by the following methods:
     Federal Rulemaking Web Site: Go to http://www.regulations.gov and search for Docket ID NRC-2012-0100. 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 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: Mr. Andrew Barto, Office of Nuclear 
Material Safety and Safeguards, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001; telephone: 301-492-3336; email: 
Andrew.Barto@nrc.gov.

SUPPLEMENTARY INFORMATION:

I. Accessing Information and Submitting Comments

A. Accessing Information

    Please refer to Docket ID NRC-2012-0100 when contacting the NRC 
about the availability of information regarding this document. You may 
access information related to this document by the following methods:
     Federal Rulemaking Web Site: Go to http://www.regulations.gov and search for Docket ID NRC-2012-0100.
     NRC's Interim Staff Guidance Web Site: The SFST-ISG 
documents are also available online under the ``Spent Fuel Storage and 
Transportation'' heading at http://www.nrc.gov/reading-rm/doc-collections/#int.
     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 draft SFST-ISG-8, 
Revision 3 is available electronically under ADAMS Accession No. 
ML12115A303.
     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-2012-0100 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 in comment submissions that you do not want to be publicly 
disclosed. The NRC posts all comment submissions at http://www.regulations.gov as well as entering the comment submissions into 
ADAMS, and the NRC does not 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 in their comment submissions 
that they do not want to be publicly disclosed. Your

[[Page 26051]]

request should state that the NRC will not edit comment submissions to 
remove such information before making the comment submissions available 
to the public or entering the comment submissions into ADAMS.

II. Background

    The NRC issues SFST-ISGs to communicate insights and lessons 
learned and to address emergent issues not covered in SFST Standard 
Review Plans (SRPs). In this way, the NRC staff and stakeholders may 
use the guidance in an SFST-ISG document before it is incorporated into 
a formal SRP revision.
    The NRC staff has developed draft SFST-ISG-8, Revision 3 to (a) 
incorporate the results of burnup credit criticality safety research 
performed since the last SFST-ISG-8 revision in 2002 into the limits 
for the licensing basis, (b) provide recommendations regarding advanced 
isotopic depletion and criticality code validation techniques, (c) 
provide recommendations regarding credit for fission product neutron 
absorbing nuclides in the criticality analysis for SNF systems, (d) add 
a recommendation for an optional misload analysis coupled with 
additional administrative SNF system loading procedures, in lieu of a 
direct burnup measurement, and (e) make miscellaneous and editorial 
changes.

Proposed Action

    By this action, the NRC is requesting public comments on draft 
SFST-ISG-8, Revision 3. This SFST-ISG proposes certain revisions to NRC 
guidance on implementation of the requirements in Title 10, Parts 71 
and 72, of the Code of Federal Regulations. The NRC staff will make a 
final determination regarding issuance of the SFST-ISG after it 
considers any public comments received in response to this request.

    Dated at Rockville, Maryland, this 19th day of April 2012.

    For the Nuclear Regulatory Commission.
Brooke D. Poole,
Acting Director, Division of Spent Fuel Storage and Transportation, 
Office of Nuclear Material Safety and Safeguards.
[FR Doc. 2012-10618 Filed 5-1-12; 8:45 am]
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