[Federal Register Volume 74, Number 217 (Thursday, November 12, 2009)]
[Pages 58323-58324]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: E9-27151]




Office of New Reactors; Proposed Interim Staff Guidance; Review 
of Evaluation To Address Gas Accumulation Issues in Safety Related 

AGENCY: Nuclear Regulatory Commission (NRC).

ACTION: Solicitation of public comment.


SUMMARY: The NRC staff is soliciting public comment on its proposed 
Interim Staff Guidance (ISG) DC/COL-ISG-019 (Agencywide Documents 
Access and Management System (ADAMS) Accession No. ML092360375). The 
purpose of this ISG is to clarify the NRC staff guidance to address 
issues of gas accumulation in safety related systems. This ISG revises 
and updates the guidance provided to the staff in Standard Review Plan 
(SRP) Sections 5.4.7, ``Residual Heat Removal System,'' 6.3 ``Emergency 
Core Cooling System,'' and 6.5.2 ``Containment Spray System'' of NUREG-
0800, ``Standard Review Plan for the Review of Safety Analysis Reports 
for Nuclear Power Plants,'' March 2007. The NRC staff issues DC/COL-
ISGs to facilitate timely implementation of current staff guidance and 
to facilitate activities associated with review of applications for 
design certifications and combined licenses by the Office of New 
Reactors. The NRC staff intends to incorporate the final approved DC/
COL-ISG-019 into the next revision of the SRP and related guidance 

DATES: Comments must be filed no later than 30 days from the date of 
publication of this notice in the Federal Register. Comments received 
after this date will be considered, if it is practical to do so, but 
the Commission is able to ensure consideration only for comments 
received on or before this date.

ADDRESSES: You may submit comments by any one of the following methods. 
Please include Docket ID NRC-2009-0494 in the subject line of your 
comments. Comments submitted in writing or in electronic form will be 
posted on the NRC Web site and on the Federal rulemaking Web site 
Regulations.gov. 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.
    Federal Rulemaking Web site: Go to http://www.regulations.gov and 
search for documents filed under Docket ID NRC-2009-0494. Address 
questions about NRC dockets to Carol Gallagher 301-492-3668; e-mail 
[email protected].
    Mail comments to: Michael T. Lesar, Chief, Rulemaking and 
Directives Branch (RDB), Division of Administrative Services, Office of 
Administration, Mail Stop: TWB-05-B01M, U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001, or by fax to RDB at (301) 492-
    The NRC ADAMS provides text and image files of NRC's public 
documents. These documents may be accessed through the NRC's Public 
Electronic Reading Room on the Internet at http://www.nrc.gov/reading-rm/adams.html. Persons who do not have access to ADAMS or who encounter 
problems in accessing the documents located in ADAMS should contact the 
NRC Public Document Room reference staff at 1-800-397-4209, 301-415-
4737, or by e-mail at [email protected].

[[Page 58324]]

FOR FURTHER INFORMATION CONTACT: Mr. Joseph E. Donoghue, Chief, Reactor 
Systems, Nuclear Performance and Code Review Branch, Division of Safety 
Systems & Risk Assessment, U.S. Nuclear Regulatory Commission, 
Washington, DC 20555-0001; telephone 301-415-1193 or e-mail at 
[email protected].

SUPPLEMENTARY INFORMATION: The agency posts its issued staff guidance 
in the agency external Web page (http://www.nrc.gov/reading-rm/doc-collections/isg/).
    The NRC staff is issuing this notice to solicit public comments on 
the proposed DC/COL-ISG-019. After the NRC staff considers any public 
comments, it will make a determination regarding the proposed DC/COL-

    Dated at Rockville, Maryland, this 3rd day of November 2009.

    For the Nuclear Regulatory Commission.
William F. Burton,
Branch Chief, Rulemaking and Guidance Development Branch, Division of 
New Reactor Licensing, Office of New Reactors.
[FR Doc. E9-27151 Filed 11-10-09; 8:45 am]