[Federal Register Volume 73, Number 236 (Monday, December 8, 2008)]
[Notices]
[Page 74531]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E8-28937]


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NUCLEAR REGULATORY COMMISSION


Draft Regulatory Guide: Issuance, Availability

AGENCY: Nuclear Regulatory Commission.

ACTION: Issuance, Availability of Draft Regulatory Guide (DG)-1178.

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FOR FURTHER INFORMATION CONTACT: Khoi H. Nguyen, U.S. Nuclear 
Regulatory Commission, Washington, DC 20555-0001, telephone: (301) 251-
7453 or e-mail [email protected].

SUPPLEMENTARY INFORMATION:

I. Introduction

    The U.S. Nuclear Regulatory Commission (NRC) has issued 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, entitled, ``Instrument Sensing Lines,'' 
is temporarily identified by its task number, DG-1178, which should be 
mentioned in all related correspondence. This guide describes a method 
that the staff of the NRC considers acceptable for use in complying 
with the Commission's regulations with regard to the design and 
installation of safety-related instrument sensing lines in nuclear 
power plants. To meet these objectives, the sensing lines must serve a 
safety-related function to prevent release of reactor coolant as a part 
of the reactor coolant pressure boundary and provide adequate 
connection to the reactor coolant system for measuring process 
variables (e.g., pressure, level, and flow). The term ``safety-
related'' refers to those structures, systems, and components necessary 
to ensure (1) The integrity of the reactor coolant pressure boundary, 
(2) the capability to shut down the reactor and maintain it in a safe 
shutdown condition, or (3) the capability to prevent or mitigate the 
consequences of accidents that could result in potential offsite 
exposures comparable to the guideline exposures of Title 10, Part 100 
of the Code of Federal Regulations, (10 CFR Part 100), ``Reactor Site 
Criteria.''

II. Further Information

    The NRC staff is soliciting comments on DG-1178. Comments may be 
accompanied by relevant information or supporting data, and should 
mention DG-1178 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). Personal information will not be removed from your 
comments. You may submit comments by any of the following methods:
    1. Mail comments to: Rulemaking, Directives, and Editing Branch, 
Office of Administration, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001.
    2. E-mail comments to: [email protected].
    3. Hand-deliver comments to: Rulemaking, Directives, and Editing 
Branch, Office of Administration, U.S. Nuclear Regulatory Commission, 
11555 Rockville Pike, Rockville, Maryland 20852, between 7:30 a.m. and 
4:15 p.m. on Federal workdays.
    4. Fax comments to: Rulemaking, Directives, and Editing Branch, 
Office of Administration, U.S. Nuclear Regulatory Commission at (301) 
415-5144.
    Requests for technical information about DG-1178 may be directed to 
the NRC Senior Program Manager, Khoi H. Nguyen at (301) 251-7453 or e-
mail to [email protected].
    Comments would be most helpful if received by February 6, 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 
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-1178 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. 
ML080510453.
    In addition, regulatory guides are available for inspection at the 
NRC's Public Document Room (PDR), which is 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 1st day of December 2008.

    For the Nuclear Regulatory Commission.
Andrea D. Valentin,
Chief, Regulatory Guide Development Branch, Division of Engineering, 
Office of Nuclear Regulatory Research.
[FR Doc. E8-28937 Filed 12-5-08; 8:45 am]
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