[Federal Register Volume 80, Number 43 (Thursday, March 5, 2015)]
[Notices]
[Pages 12042-12043]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-05098]


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NUCLEAR REGULATORY COMMISSION

[NRC-2014-0273]


Impact of Variation in Environmental Conditions on the Thermal 
Performance of Dry Storage Casks

AGENCY: Nuclear Regulatory Commission.

ACTION: Draft NUREG; request for comment.

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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is issuing for 
public comment a draft NUREG, NUREG-2174, ``Impact of Variation in 
Environmental Conditions on the Thermal Performance of Dry Storage 
Casks.'' This report evaluates spent fuel dry storage cask thermal 
impact of varying environmental conditions and transient thermal 
behavior when subjected to a sudden boundary condition change. 
Different cask designs are evaluated (vertical underground, vertical 
aboveground, and horizontal aboveground). The NRC staff will consider 
the analysis results in this report when performing technical reviews, 
applicants should consider them when applying for cask certification. 
These results can be used as additional guidance when considering the 
thermal impact of the environmental factors in the thermal performance 
of dry storage systems.

DATES: Submit comments by May 4, 2015. Comments received after this 
date will be considered if it is practical to do so, but the Commission 
is able to ensure consideration only for comments received before this 
date.

ADDRESSES: You may submit comments by any of the following methods 
(unless this document describes a different method for submitting 
comments on a specific subject):
    <bullet> Federal Rulemaking Web site: Go to http://www.regulations.gov and search for Docket ID NRC-2014-0273. Address 
questions about NRC dockets to Carol Gallagher; telephone: 301-415-
3463; email: <a href="/cdn-cgi/l/email-protection#b7f4d6c5d8db99f0d6dbdbd6d0dfd2c5f7d9c5d499d0d8c1"><span class="__cf_email__" data-cfemail="ca89abb8a5a6e48daba6a6abada2afb88aa4b8a9e4ada5bc">[email protected]</span></a>. For technical questions, contact 
the individual listed in the FOR FURTHER INFORMATION CONTACT section of 
this document.
    <bullet> Mail comments to: Cindy Bladey, Office of Administration, 
Mail Stop: OWFN-12-H08, U.S. Nuclear Regulatory Commission, Washington, 
DC 20555-0001.
    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: Jorge Solis, Office of Nuclear 
Material Safety and Safeguards, U.S. Nuclear Regulatory Commission 
Washington, DC 20005-0001; telephone: 301-287-9094; email: 
<a href="/cdn-cgi/l/email-protection#016b6e7366642f726e6d68726d416f73622f666e77"><span class="__cf_email__" data-cfemail="e18b8e938684cf928e8d88928da18f9382cf868e97">[email protected]</span></a>.

SUPPLEMENTARY INFORMATION:

I. Obtaining Information and Submitting Comments

A. Obtaining Information

    Please refer to Docket ID NRC-2014-0273 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:
    <bullet> Federal Rulemaking Web site: Go to http://www.regulations.gov and search for Docket ID NRC-2014-0273.
    <bullet> NRC's Agencywide Documents Access and Management System 
(ADAMS): You may obtain publicly-available documents online in the 
ADAMS Public Documents collection at http://www.nrc.gov/reading-rm/

[[Page 12043]]

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 <a href="/cdn-cgi/l/email-protection#b9c9ddcb97cbdccad6cccbdadcf9d7cbda97ded6cf"><span class="__cf_email__" data-cfemail="ff8f9b8dd18d9a8c908a8d9c9abf918d9cd1989089">[email protected]</span></a>. The 
draft NUREG is available in ADAMS under Accession No. ML15054A207.
    <bullet> 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-2014-0273 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 posts all comment submissions at http://www.regulations.gov as well as entering 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. Discussion

    The NRC is issuing Draft ``Impact of Variation in Environmental 
Conditions on the Thermal Performance of Dry Storage Casks.'' The draft 
NUREG-2174 report evaluates the thermal impact of varying environmental 
conditions and transient thermal behavior when subjected to a sudden 
boundary condition change in spent fuel dry storage casks. Different 
cask designs are evaluated in the draft NUREG report. The NRC will 
consider the analysis results in the report when performing technical 
reviews, therefore applicants should consider them when applying for 
cask certification. The analysis results in draft NUREG-2174 can be 
used as additional guidance when considering the thermal impact of the 
environmental factors in the thermal performance of dry storage 
systems.
    The purpose of this notice is to provide the public with an 
opportunity to review and provide comments on Draft NUREG-2174, 
``Impact of Variation in Environmental Conditions on the Thermal 
Performance of Dry Storage Casks.'' Any comments received will be 
considered in the final version or subsequent revisions of the draft 
NUREG.

    Dated at Rockville, Maryland, this 24th day of February, 2015.

    For the Nuclear Regulatory Commission.
Christian Araguas,
Chief, Containment, Structural, and Thermal Branch, Division of Spent 
Fuel Management, Office of Nuclear Material Safety and Safeguards.
[FR Doc. 2015-05098 Filed 3-4-15; 8:45 am]
 BILLING CODE 7590-01-P


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