Office of New Reactors; Interim Staff Guidance on Implementation of a Seismic Margin Analysis for New Reactors Based on Probabilistic Risk Assessment

Summary:

The NRC staff is soliciting public comment on its Proposed Interim Staff Guidance (ISG) DC/COL-ISG-020 titled “Interim Staff Guidance on Implementation of a Seismic Margin Analysis for New Reactors Based on Probabilistic Risk Assessment, “(Agencywide Documents Access and Management System (ADAMS) Accession No. ML092650342). This ISG supplements the guidance provided to the staff in Section 19.0 of NUREG-0800, “Standard Review Plan for the Review of Safety Analysis Reports for Nuclear Power Plants,” issued March 2007 and DC/COL-ISG-03, “Probabilistic Risk Assessment Information to Support Design Certification and Combined License Applications,” dated June 11, 2008 (ADAMS Accession No. ML081430087) concerning the review of probabilistic risk assessment (PRA) information and severe accident assessments submitted to support design certification (DC) and combined license (COL) applications. The NRC staff intends to incorporate the final approved DC/COL-ISG-020 into the next revision of SRP Section 19.0 and Regulatory Guide 1.206, “Combined License Applications for Nuclear Power Plants (LWR Edition),” June 2007.

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-2009-0457 in the subject line of your comments. Comments submitted in writing or in electronic form will be posted on the NRC website and on the Federal rulemaking Web site at http://www.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 Website: Go to http://www.Regulations.gov and search for documents filed under Docket ID: NRC-2009-0457. Address questions about NRC dockets to Carol Gallagher at 301-492-3668; e-mail at Carol.Gallagher@nrc.gov.

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) 492-3446.

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 by telephone at 1-800-397-4209, 301-415-4737, or by e-mail at pdr.resource@nrc.gov.

For further information contact:

Mr. William F. Burton, Chief, Rulemaking and Guidance Development Branch, Division of New Reactor Licensing, Office of New Reactors, U.S. Nuclear Regulatory Commission, Washington, DC, 20555-0001; telephone at 301-415-6332 or e-mail at william.burton@nrc.gov.

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-020. After the NRC staff considers any public comments, it will make a determination regarding the proposed DC/COL-ISG-020.

Dated at Rockville, Maryland, this 8th day of October 2009.

For the Nuclear Regulatory Commission,

William F. Burton,

Chief, Rulemaking and Guidance Development Branch, Division of New Reactor Licensing, Office of New Reactors.

References

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