[Federal Register Volume 77, Number 135 (Friday, July 13, 2012)]
[Notices]
[Pages 41457-41458]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-17117]
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NUCLEAR REGULATORY COMMISSION
[NRC-2012-0170]
Aging Management Associated With Wall Thinning Due to Erosion
Mechanisms
AGENCY: Nuclear Regulatory Commission.
ACTION: Draft interim staff guidance; request for public comment.
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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC or the Commission)
requests public comment on Draft License Renewal Interim Staff Guidance
(LR-ISG), LR-ISG-2012-01, ``Wall Thinning Due to Erosion Mechanisms.''
The draft LR-ISG proposes to revise an NRC staff-recommended aging
management program (AMP) in NUREG-1801, Revision 2, ``Generic Aging
Lessons Learned (GALL) Report,'' and the NRC staff's aging management
review procedure and acceptance criteria contained in NUREG-1800,
Revision 2, ``Standard Review Plan for Review of License Renewal
Applications for Nuclear Power Plants'' (SRP-LR) to address wall
thinning due to various erosion mechanisms for piping and components
within the scope of the Requirements for Renewal of Operating Licenses
for Nuclear Power Plants. This LR-ISG provides changes to the
recommendations in GALL Report, Revision 2, AMP XI.M17, ``Flow-
Accelerated Corrosion,'' based on the staff's review of several license
renewal applications' flow-accelerated corrosion AMPs and stakeholder
input.
DATES: Submit comments by August 27, 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 are publicly available,
by searching on http://www.regulations.gov under Docket ID NRC-2012-
0170. 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-2012-0170. Address
questions about NRC dockets to Carol Gallagher; telephone: 301-492-
3668; email: [email protected].
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. James Gavula, Division of License
Renewal, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory
Commission, Washington, DC 20555-0001; telephone: 630-829-9755; email:
[email protected].
SUPPLEMENTARY INFORMATION:
I. Accessing Information and Submitting Comments
A. Accessing Information
Please refer to Docket ID NRC-2012-0170 when contacting the NRC
about the availability of information regarding this document. You may
access information related to this document, which the NRC possesses
and are publicly available, by any of the following methods:
Federal Rulemaking Web Site: Go to http://www.regulations.gov and search for Docket ID NRC-2012-0170.
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 [email protected]. The draft
[[Page 41458]]
LR-ISG-2012-01 is available electronically under ADAMS Accession No.
ML12114A211. The GALL Report and SRP-LR are available under ADAMS
Accession Nos. ML103490041 and ML103490036, respectively.
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.
NRC's Interim Staff Guidance Web Site: The LR-ISG
documents are also available online under the ``License Renewal''
heading at http://www.nrc.gov/reading-rm/doc-collections/#int.
B. Submitting Comments
Please include Docket ID NRC-2012-0170 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 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. Background
The NRC issues LR-ISGs to communicate insights and lessons learned
and to address emergent issues not covered in license renewal guidance
documents, such as the GALL Report and SRP-LR. In this way, the NRC
staff and stakeholders may use the guidance in an LR-ISG document
before it is incorporated into a formal license renewal guidance
document revision. The NRC staff issues LR-ISGs in accordance with the
LR-ISG Process, Revision 2 (ADAMS Accession No. ML100920158), for which
a notice of availability was published in the Federal Register on June
22, 2010 (75 FR 35510).
The NRC staff has developed draft LR-ISG-2012-01 to: (a) Revise the
definition of ``wall thinning'' to include erosion mechanisms; (b)
revise the definition of ``flow-accelerated corrosion'' and ``erosion''
to align them with the definitions commonly used in industry; (c) allow
applicants that have identified wall thinning due to erosion mechanisms
to monitor wall thinning caused by erosion mechanisms to be included in
the aging management program for flow-accelerated corrosion by (i)
ensuring extent of condition reviews determine if other components are
susceptible to similar degradation, and (ii) verifying that corrective
actions have either eliminated the erosion mechanism precluding the
need for ongoing aging management activities or included periodic wall
thickness measurements in an aging management program; and (d) make
miscellaneous and editorial changes.
III. Proposed Action
By this action, the NRC is requesting public comments on draft LR-
ISG-2012-01. This LR-ISG proposes certain revisions to NRC guidance on
implementation of the requirements in 10 CFR Part 54. The NRC staff
will make a final determination regarding issuance of the LR-ISG after
it considers any public comments received in response to this request.
Dated at Rockville, Maryland, this 5th day of July 2012.
For the Nuclear Regulatory Commission.
Melanie A. Galloway,
Acting Director, Division of License Renewal, Office of Nuclear Reactor
Regulation.
[FR Doc. 2012-17117 Filed 7-12-12; 8:45 am]
BILLING CODE 7590-01-P