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###### Nuclear Regulatory Commission

          - [NRC-2009-0178]

# AGENCY:

Nuclear Regulatory Commission.

# ACTION:

Notice of Issuance and Availability of Draft Regulatory Guide (DG)-1220.

# FOR FURTHER INFORMATION CONTACT:

                        Bruce Lin, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001,                         *telephone:*                         (301) 251-7653 or e-mail to                         *Bruce.Lin@nrc.gov*.                    

# SUPPLEMENTARY INFORMATION:

## I. Introduction

The U.S. Nuclear Regulatory Commission (NRC) is issuing for public comment a draft regulatory 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 (DG), entitled, “Performance-Based Containment Leak-Test Program,” is temporarily identified by its task number, DG-1220, which should be mentioned in all related correspondence. DG-1220 is proposed Revision 1 of Regulatory Guide 1.163.

DG-1220 provides guidance on a performance-based leak-test program, leakage-rate test methods, procedures, and analyses that the NRC considers acceptable for use in complying with the Option B, performance-based requirements, in Appendix J, “Primary Reactor Containment Leakage Testing for Water-Cooled Power Reactors,” to Title 10, Part 50, “Domestic Licensing of Production and Utilization Facilities,” of the Code of Federal Regulations (10 CFR Part 50). Licensees may voluntarily choose either Option A, “Prescriptive Requirements,” or Option B to meet the requirements of Appendix J to 10 CFR Part 50.

## II. Further Information

                    The NRC staff is soliciting comments on DG-1220. Comments may be accompanied by relevant information or supporting data and should mention DG-1220 in the subject line. Comments submitted in writing or in electronic                           ( print page 18749)                        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 and Directives Branch, TWB-5-A01, Office of Administration, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001.                

                    2.                     *E-mail comments to: nrcrep.resource@nrc.gov*.                

                    3.                     *Fax comments to:*                     Rulemaking and Directives Branch, Office of Administration, U.S. Nuclear Regulatory Commission at (301) 492-3446.                

                    Requests for technical information about DG-1220 may be directed to the NRC contact, Bruce Lin at (301) 251-7653 or e-mail to                     *Bruce.Lin@nrc.gov*.                

Comments would be most helpful if received by June 26, 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-1220 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. ML090490183.                

                    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                     *pdr.resource@nrc.gov*.                

Regulatory guides are not copyrighted, and Commission approval is not required to reproduce them.

Dated at Rockville, Maryland, this 17th day of April 2009.

For the Nuclear Regulatory Commission.

Andrea D. Valentin,

Chief, Regulatory Guide Development Branch, Division of Engineering, Office of Nuclear Regulatory Research.

[FR Doc. E9-9406 Filed 4-23-09; 8:45 am]

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