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###### Nuclear Regulatory Commission

          - [NRC-2012-0065]

# AGENCY:

Nuclear Regulatory Commission.

# ACTION:

Draft regulatory guide; request for comment.

# SUMMARY:

The U.S. Nuclear Regulatory Commission (NRC or the Commission) is issuing for public comment draft regulatory guide (DG), DG-1268, “Preoperational Testing of Instrument and Control Air Systems.” This regulatory guide is being revised to address new issues that have been raised since RG 1.68.3 was first issued. These include vibration testing of instrument and control air systems (ICAS) to meet seismic requirement, ICAS air-dryer testing to meet dew point design requirements, ICAS accumulator check valves and solenoid valves operating and testing experience, an update to ISA S7.3 for acceptable industry standards for oil, water and particle matter in ICAS.

# DATES:

Submit comments by May 18, 2012. Comments received after this 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.

# ADDRESSES:

                        You may access information and comment submissions related to this document, which the NRC possesses and is publicly available, by searching on                         *http://www.regulations.gov*                         under Docket ID NRC-2012-0065.                    

                        You may submit comments by the following methods:                              ( print page 15814)    
      -  Federal Rulemaking Web site:                          Go to                          http://www.regulations.gov                          and search for Docket ID NRC-2012-0065. Address questions about NRC dockets to Carol Gallagher; telephone: 301-492-3668; email:                          Carol.Gallagher@nrc.gov. 
      -  Mail comments to:                          Cindy Bladey, Chief, Rules, Announcements, and Directives Branch (RADB), Office of Administration, Mail Stop: TWB-05-B01M, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001.                    
      -  Fax comments to:                          RADB at 301-492-3446.                    

                        For additional direction on accessing information and submitting comments, see “Accessing Information and Submitting Comments” in the                         **SUPPLEMENTARY INFORMATION**                         section of this document.                    

# FOR FURTHER INFORMATION CONTACT:

                        Frank Talbot, Division of Construction Inspection, and Operational Programs, Office of New Reactors, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001, telephone: 301-415-3146; email:                         *Frank.Talbot@nrc.gov.*

# SUPPLEMENTARY INFORMATION:

## I. Accessing Information and Submitting Comments

### A. Accessing Information

Please refer to Docket ID NRC-2012-0065 when contacting the NRC about the availability of information regarding this document. You may access information related to this document, which the NRC possesses and is publicly available, by the following methods:
    -  Federal Rulemaking Web Site:                      Go to                      http://www.regulations.gov                      and search for Docket ID NRC-2012-0065.                
    -  NRC's Agencywide Documents Access and Management System (ADAMS):                      You may access publicly available documents online in the NRC Library at                      http://www.nrc.gov/​reading-rm/​adams.html.                      To begin the search, select “ADAMS Public Documents” and then select “Begin Web-based ADAMS Search.” For problems with ADAMS, please contact the NRC's Public Document Room (PDR) reference staff at 1-800-397-4209, 301-415-4737, or by email to                      pdr.resource@nrc.gov.                      The draft regulatory guide is available electronically under ADAMS Accession Number ML113180379. The regulatory analysis may be found in ADAMS under Accession No. ML113180380.                

Regulatory guides are not copyrighted, and NRC approval is not required to reproduce them.
    -  NRC's PDR:                      You may examine and purchase copies of public documents at the NRC's PDR, Room O1-F21, One White Flint North, 11555 Rockville Pike, Rockville, Maryland 20852.                

### B. Submitting Comments

Please include Docket ID NRC-2012-0065 in the subject line of your comment submission, in order to ensure that the NRC is able to make your comment submission available to the public in this docket.

                    The NRC cautions you not to include identifying or contact information in comment submissions that you do not want to be publicly disclosed. The NRC posts all comment submissions at                     *http://www.regulations.gov*                     as well as enters the comment submissions into ADAMS. The NRC does not edit comment submissions to remove identifying or contact information.                

If you are requesting or aggregating comments from other persons for submission to the NRC, then you should inform those persons not to include identifying or contact information in their comment submissions that they do not want to be publicly disclosed. Your request should state that the NRC will not edit comment submissions to remove such information before making the comment submissions available to the public or entering the comment submissions into ADAMS.

## II. Further Information

The NRC is issuing for public comment a draft guide in the NRC'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, “Preoperational Testing of Instrument and Control Air Systems,” is temporarily identified by its task number, DG-1268. The DG-1268 is proposed revision 2 of Regulatory Guide 1.68.3, dated January 1977.

                    This guide describes methods and procedures the staff of the NRC considers acceptable to implement preoperational testing of the instrument and control air systems (ICAS) in a commercial nuclear power plant. Successful demonstration of the operability of the ICAS is one of the items required by Appendix A, “General Design Criteria for Nuclear Power Plants,” of Title 10 of the                     *Code of Federal Regulations,*                     part 50, “Domestic Licensing of Production and Utilization Facilities” (10 CFR part 50). This guide also describes the methods that the NRC staff finds acceptable for the initial test program for ICAS systems, structures, and components (SSCs) in accordance with the regulations in 10 CFR Part 52, “Licenses, Certifications, and Approvals for Nuclear Power Plants,” Subpart B, “Standard Design Certifications,” and Subpart C, “Combined Licenses.”                

For the Nuclear Regulatory Commission.

Dated at Rockville, Maryland, this 8th day of March, 2012.

Thomas H. Boyce,

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

[FR Doc. 2012-6413 Filed 3-15-12; 8:45 am]

BILLING CODE 7590-01-P