[Federal Register Volume 75, Number 61 (Wednesday, March 31, 2010)]
[Pages 16202-16203]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-7226]




Notice of Issuance of Regulatory Guide

AGENCY: Nuclear Regulatory Commission.

ACTION: Notice of Issuance and Availability of Regulatory Guide (RG) 
1.126, Revision 2, ``An Acceptable Model and Related Statistical 
Methods for the Analysis of Fuel Densification.''


Regulatory Commission, Washington, DC 20555-0001, telephone (301) 251-
7555 or e-mail [email protected].


I. Introduction

    The U.S. Nuclear Regulatory Commission (NRC) is issuing a revision 
to an existing guide in the agency's ``Regulatory Guide'' series. This 
series was developed to describe and make

[[Page 16203]]

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 licenses.
    Revision 2 of RG 1.126 was issued with a temporary identification 
as Draft Regulatory Guide, DG-1189. This guide describes an analytical 
model and related assumptions and procedures that the staff of the NRC 
considers acceptable for predicting the effects of fuel densification 
in light-water-cooled nuclear power reactors. To meet these objectives, 
the guide describes statistical methods related to product sampling 
that will ensure that this and other approved analytical models will 
adequately describe the effects of densification for each initial core 
and reload fuel quantity produced.

II. Further Information

    In December 2008, DG-1189 was published with a public comment 
period of 60 days from the issuance of the guide. No formal comments 
were received and the public comment period closed on February 9, 2009. 
Electronic copies of RG 1.126 are available through the NRC's public 
Web site under ``Regulatory Guides'' at http://www.nrc.gov/reading-rm/doc-collections/.
    In addition, regulatory guides are available for inspection at the 
NRC's Public Document Room (PDR) located at Room O-1F21, One White 
Flint North, 11555 Rockville Pike, Rockville, Maryland 20852-2738. 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) 397-4209, 
by fax at (301) 415-3548, and by e-mail to [email protected].
    Regulatory guides are not copyrighted, and NRC approval is not 
required to reproduce them.

    Dated at Rockville, Maryland, this 22nd day of March 2010.

    For the Nuclear Regulatory Commission.
Andrea D. Valentin,
Chief, Regulatory Guide Development Branch, Division of Engineering, 
Office of Nuclear Regulatory Research.
[FR Doc. 2010-7226 Filed 3-30-10; 8:45 am]