49712 Federal Register / Vol. 73, No. 164 / Friday, August 22, 2008 / Notices 

PWROG views changes in Addendum A 

substantial enough to warrant an extension of 

the public review period. Accordingly, we 

request a 60-day extension to the current 

review period.’’

Response to Request 

The request for an extension to the 

comment period is approved for 30 

days. 

The staff understands that ASME/ 

ANS is working on an initial addendum 

(i.e., Addendum A) to Revision 1 of the 

ASME/ANS PRA Standard (RA–S–

2008). However, at this time, 

Addendum A has not been approved by 

ASME/ANS, and consequently is not 

available to the public. Since the ASME/ 

ANS ballot period has not closed, it is 

not known if there will be sufficient 

positive ballots approving Addendum 

A. Consequently, it is uncertain if and 

when ASME/ANS will issue Addendum 

A, and therefore, be available to the 

public. A 60-day extension to the public 

comment period for DG 1200 will 

impact the December 2008 publication 

date of Revision 2 of RG 1.200. With the 

uncertainty associated with the issuance 

of Addendum A of the ASME/ANS PRA 

standard, the staff does not support an 

extension of the comment period to DG 

1200 that would impact the schedule for 

publishing Revision 2 to RG 1.200. 

However, the staff agrees with the 

PWROG with regard to the importance 

of Addendum A. The staff understands 

from ASME that the ballot closes 

September 12, 2008, at which time the 

status of Addendum A will be known. 

A 30-day extension to the comment 

period of DG 1200 will enable the staff 

the meet the publication schedule of 

December 2008 for Revision 2 to RG 

1.200. Therefore, the staff is approving 

a 30-day extension to the public 

comment period, with the public 

comment period to end on September 

24, 2008. Further, at that time, the status 

of Addendum A of the ASME/ANS PRA 

Standard will be known, and dependent 

on the content of Addendum A and the 

schedule for issuance, the staff may 

revisit the schedule for publishing 

Revision 2 of RG 1.200. 

Requests for technical information 

about DG–1200 may be directed to the 

NRC contact, Mary Drouin at (301) 415–

6675 or e-mail to Mary.Drouin@nrc.gov. 

Electronic copies of DG–1200 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/doccollections/. Electronic copies are also 

available in ADAMS (http:// 

www.nrc.gov/reading-rm/adams.html), 

under Accession No. ML081200566. 

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 19th day 

of August 2008. 

For the Nuclear Regulatory Commission. 

Stephen C. O’Connor, 

Acting Chief, Regulatory Guide Development 

Branch, Division of Engineering, Office of 

Nuclear Regulatory Research. 

[FR Doc. E8–19635 Filed 8–21–08; 8:45 am] 

BILLING CODE 7590–01–P 

NUCLEAR REGULATORY 

COMMISSION 

Office of New Reactors; Interim Staff 

Guidance on Assessment of Normal 

and Extreme Winter Precipitation 

Loads on the Roofs of Seismic 

Category I Structures 

AGENCY: Nuclear Regulatory 

Commission (NRC). 

ACTION: Solicitation of public comment. 

SUMMARY: The NRC is soliciting public 

comment on its Proposed Interim Staff 

Guidance (ISG) DC/COL–ISG–07 

(ADAMS Accession No. ML081980084). 

The purpose of this ISG is to clarify the 

NRC position on identifying winter 

precipitation events as site 

characteristics and site parameters for 

determining normal and extreme winter 

precipitation loads on the roofs of 

Seismic Category I structures. This ISG 

revises the previously issued staff 

guidance in March 2007 in the Standard 

Review Plan (SRP) NUREG–0080, 

‘‘Standard Review Plan for the Review 

of Safety Analysis Reports for Nuclear 

Power Plants.’’ The NRC staff issues DC/ 

COL–ISGs to facilitate timely 

implementation of the current staff 

guidance and to facilitate activities 

associated with review of applications 

for design certifications (DCs) and 

combined licenses (COLs) by the Office 

of New Reactors. The NRC staff will also 

incorporate the approved DC/COL–ISG–

007 into the next revision of the SRP 

and related guidance documents. 

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: Comments may be 

submitted to: Chief, Rulemaking, 

Directives and Editing Branch, Office of 

Administration, U.S. Nuclear Regulatory 

Commission, Washington, DC 20555–

0001. 

Comments should be delivered to: 

11545 Rockville Pike, Rockville, 

Maryland, Room T–6D59, between 7:30 

a.m. and 4:15 p.m. on Federal workdays. 

Persons may also provide comments via 

e-mail at charles.cox@nrc.gov. The NRC 

maintains an Agencywide Documents 

Access and Management System 

(ADAMS), which 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 pdr.resource@nrc.gov. 

FOR FURTHER INFORMATION CONTACT: Mr. 

Charles R. Cox, Siting and Accident 

Consequence Branch, Division of Siting 

and Environmental Reviews, Office of 

the New Reactors, U.S. Nuclear 

Regulatory Commission, Washington, 

DC 20555–0001; telephone 301–415–

2003 or e-mail at charles.cox@nrc.gov. 

SUPPLEMENTARY INFORMATION: The 

agency posts its issued staff guidance in 

the agency external Web page (http:// 

www.nrc.gov/reading-rm/doccollections/isg/). 

The NRC staff is issuing this notice to 

solicit public comments on the 

proposed DC/COL–ISG–007. After the 

NRC staff considers any public 

comments, it will make a determination 

regarding the proposed DC/COL–ISG–

007. 

Dated at Rockville, Maryland, the 15th day 

of August 2008. 

For the Nuclear Regulatory Commission. 

Nanette Gilles, 

Acting Branch Chief Rulemaking, Guidance 

and Advanced Reactors Branch, Division of 

New Reactor Licensing, Office of New 

Reactors. 

[FR Doc. E8–19554 Filed 8–21–08; 8:45 am] 

BILLING CODE 7590–01–P 


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