[Federal Register Volume 77, Number 15 (Tuesday, January 24, 2012)]
[Page 3514]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-1335]




Protection Against Turbine Missiles

AGENCY: Nuclear Regulatory Commission.

ACTION: Regulatory guide; issuance.


SUMMARY: The U.S. Nuclear Regulatory Commission (NRC or Commission) is 
issuing a revision to Regulatory Guide 1.115, ``Protection Against 
Turbine Missiles.'' 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.

ADDRESSES: You can access publicly available documents related to this 
regulatory guide using the following methods:
     NRC's Public Document Room (PDR): The public may examine 
and have copied, for a fee, publicly available documents at the NRC's 
PDR, O1-F21, One White Flint North, 11555 Rockville Pike, Rockville, 
Maryland 20852.
     NRC's Agencywide Documents Access and Management System 
(ADAMS): Publicly available documents created or received at the NRC 
are available online in the NRC Library at http://www.nrc.gov/reading-rm/adams.html. From this page, the public can gain entry into ADAMS, 
which provides text and image files of the NRC's public documents. If 
you do not have access to ADAMS or if there are problems in accessing 
the documents located in ADAMS, contact the NRC's PDR reference staff 
at 1-(800) 397-4209, (301) 415-4737, or by email to 
[email protected]. The regulatory guide is available electronically 
under ADAMS Accession Number ML101650675. The regulatory analysis may 
be found in ADAMS under Accession Number ML101670039.
     Federal Rulemaking Web Site: Public comments and 
supporting materials related to this notice can be found at http://www.regulations.gov by searching on Docket ID NRC-2009-0481.
    Regulatory guides are not copyrighted, and NRC approval is not 
required to reproduce them.

Development Branch, Division of Engineering, Office of Nuclear 
Regulatory Research, U.S. Nuclear Regulatory Commission, Washington, DC 
20555-0001, telephone: (301) 251-7404 or email: [email protected].

SUPPLEMENTARY INFORMATION: The NRC is issuing a revision to an existing 
guide in the agency's ``Regulatory Guide'' series. This series was 
developed to describe and make available to the public information such 
as methods that are acceptable to the NRC staff for implementing 
specific parts of the agency'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 
    Revision 2 of Regulatory Guide 1.115, ``Protection Against Turbine 
Missiles,'' was issued with a temporary identification as Draft 
Regulatory Guide, DG-1217. DG-1217 was published in the Federal 
Register on November 2, 2009 (74 FR 56672) for a 60 day public comment 
period. DG-1217 was reissued for public comment on May 6, 2011 (76 FR 
26320). The public comment period closed on June 3, 2011. The staff's 
responses to the public comments received are located in the NRC's 
Agencywide Documents Access and Management System (ADAMS) under the 
following Accession Numbers ML112090989 and ML101660585.

    Dated at Rockville, Maryland, this 13th day of January 2011.

    For the Nuclear Regulatory Commission.
Edward O'Donnell,
Acting Chief, Regulatory Guide Development Branch, Division of 
Engineering, Office of Nuclear Regulatory Research.
[FR Doc. 2012-1335 Filed 1-23-12; 8:45 am]