[Federal Register Volume 74, Number 210 (Monday, November 2, 2009)]
[Notices]
[Pages 56672-56673]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-26282]


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NUCLEAR REGULATORY COMMISSION

[NRC-2009-0481]


Draft Regulatory Guide: Issuance, Availability

AGENCY: Nuclear Regulatory Commission.

ACTION: Notice of Issuance and Availability of Draft Regulatory Guide, 
DG-1217 ``Protection Against Turbine Missiles''.

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FOR FURTHER INFORMATION CONTACT: Simon Sheng, U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001, telephone: (301) 415-2280, e-
mail [email protected], or R.A. Jervey, telephone: (301) 251-7404, e-
mail [email protected].

SUPPLEMENTARY INFORMATION:

I. Introduction

    The U.S. Nuclear Regulatory Commission (NRC) is issuing for public 
comment a draft guide in the agency's ``Regulatory Guide'' series. This 
series was developed to describe and make available to the public such 
information as methods that are acceptable to the NRC staff for 
implementing specific parts of the NRC's regulations, techniques that 
the staff uses in evaluating specific problems or postulated accidents, 
and data that the staff needs in its review of applications for permits 
and licenses.
    The draft regulatory guide (DG) is temporarily identified by its 
task number, DG-1217, which should be mentioned in all related 
correspondence. DG-1217 is proposed Revision 2 of Regulatory Guide 
1.115, Revision 1, dated July 1977.
    This guide describes methods acceptable to the NRC staff for 
protecting safety-related structures, systems, and components against 
missiles resulting from turbine failure by the appropriate orientation 
and placement of the turbine-generator set, the management of the 
probability of turbine missile generation, and the use of missile 
barriers.
    General Design Criterion 4, ``Environmental and Dynamic Effects 
Design Bases,'' of Appendix A, ``General Design Criteria for Nuclear 
Power Plants,'' to Title 10 of the Code of Federal Regulations (10 CFR) 
Part 50, ``Domestic Licensing of Production and Utilization 
Facilities,'' requires, in part, that structures, systems, and 
components important to safety be appropriately protected against the 
effects of missiles that might result from equipment failures. Failures 
that could occur in the large steam turbines of the main turbine-
generator sets have the potential for producing large high-energy 
missiles.

II. Further Information

    The NRC staff is soliciting comments on DG-1217. Comments may be 
accompanied by relevant information or supporting data and should 
mention DG-1217 in the subject line. Comments submitted in writing or 
in electronic form will be made available to the public in their 
entirety through the NRC's Agencywide Documents Access and Management 
System (ADAMS).
    Because your comments will not be edited to remove any identifying 
or contact information, the NRC cautions you against including any 
information in your submission that you do not want to be publicly 
disclosed.
    The NRC requests that any party soliciting or aggregating comments 
received from other persons for submission to the NRC inform those 
persons that the NRC will not edit their comments to remove any 
identifying or contact information, and therefore, they should not 
include any information in their comments that they do not want 
publicly disclosed. You may submit comments by any of the following 
methods:
    1. Mail comments to: Rulemaking and Directives Branch, Mail Stop: 
TWB-05-B01M, Office of Administration, U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001.
    2. Federal e-Rulemaking Portal: Go to http://www.regulations.gov 
and search for documents filed under Docket ID [NRC-2009-0481]. Address 
questions about NRC dockets to Carol Gallagher, (301) 492-3668; e-mail 
[email protected].
    3. Fax comments to: Rulemaking and Directives Branch, Office of 
Administration, U.S. Nuclear Regulatory Commission at (301) 492-3446.
    Requests for technical information about DG-1217 may be directed to 
the NRC contact, Simon Sheng at (301) 415-2280 or e-mail 
[email protected].
    Comments would be most helpful if received by December 22, 2009. 
Comments received after that date will be considered if it is practical 
to do so, but the NRC is able to ensure consideration only for comments

[[Page 56673]]

received on or before this date. Although a time limit is given, 
comments and suggestions in connection with items for inclusion in 
guides currently being developed or improvements in all published 
guides are encouraged at any time.
    Electronic copies of DG-1217 are available through the NRC's public 
Web site under Draft Regulatory Guides in the ``Regulatory Guides'' 
collection of the NRC's Electronic Reading Room at http://www.nrc.gov/reading-rm/doc-collections/. Electronic copies are also available in 
ADAMS (http://www.nrc.gov/reading-rm/adams.html), under Accession No. 
ML092250316.
    In addition, regulatory guides are available for inspection at the 
NRC's Public Document Room (PDR) located at 11555 Rockville Pike, 
Rockville, Maryland. The PDR's mailing address is USNRC PDR, 
Washington, DC 20555-0001. The PDR can also be reached by telephone at 
(301) 415-4737 or (800) 397-4205, by fax at (301) 415-3548, and by e-
mail to [email protected].
    Regulatory guides are not copyrighted, and Commission approval is 
not required to reproduce them.

    Dated at Rockville, Maryland, this 26th day of October, 2009.

    For the Nuclear Regulatory Commission.
John N. Ridgely,
Acting Chief, Regulatory Guide Development Branch, Division of 
Engineering, Office of Nuclear Regulatory Research.
[FR Doc. E9-26282 Filed 10-30-09; 8:45 am]
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