Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Notices 6747 

Regulatory Research, telephone (301) 

415–6675, e-mail mxd@nrc.gov. 

SUPPLEMENTARY INFORMATION: 

NUREG–1855, ‘‘Guidance on the 

Treatment of Uncertainties Associated 

With PRAs in Risk-Informed Decision 

Making, Draft Report for Comment.’’

December 2007 

This NUREG provides guidance on 

how to treat uncertainties associated 

with probabilistic risk assessment (PRA) 

in risk-informed decision making. The 

objectives of this guidance include 

fostering an understanding of (1) the 

uncertainties associated with PRA, (2) 

the impact of the uncertainties on the 

results of the PRA, and (3) the 

uncertainties in the context of the 

decision making. The guidance in this 

document focuses on the use of PRA 

insights and results and ways to address 

the associated uncertainties. 

Consequently, the scope of the guidance 

contained in this report is limited to 

addressing the uncertainties associated 

with the use of the results of risk 

models. 

In implementing risk-informed 

decision making, the U.S. Nuclear 

Regulatory Commission expects that 

appropriate consideration of uncertainty 

will be given in analyses and 

interpretation of findings. Such 

consideration should include using a 

program of monitoring, feedback, and 

corrective action to address significant 

uncertainties. To meet this objective, it 

is necessary to understand the role that 

PRA results play in the context of the 

decision process. Defining the context 

includes providing an overview of the 

risk-informed decision making process 

itself. 

With the context defined, the 

characteristics of a risk model and, in 

particular, a PRA need to be understood. 

This understanding includes a 

recognition of the different forms of 

uncertainty which include aleatory and 

epistemic. A PRA, as a probabilistic 

model already characterizes aleatory 

uncertainty. The focus of this document 

is epistemic uncertainty. Therefore, 

guidance is given on identifying and 

describing the different types of sources 

of epistemic uncertainty including the 

different ways that they are treated. The 

different types of epistemic uncertainty 

include parameter, model, and 

completeness uncertainties. 

The final part of the guidance 

includes addressing the uncertainty in 

PRA results in the context of riskinformed decision making and, in 

particular, the interpretation of the 

results of the uncertainty analysis when 

comparing PRA results with the 

acceptance criteria established for a 

specified application. In addition, 

guidance is provided for addressing the 

other elements contributing to 

completeness uncertainty in riskinformed decision making (e.g., 

unknown phenomena that have not 

been recognized or factors that have 

been identified but for which there is no 

agreed on method for addressing them 

in PRAs). 

The Electric Power Research Institute 

(EPRI), in parallel with the NRC, has 

been developing guidance documents 

on the treatment of uncertainties. The 

activities of the NRC and EPRI are 

meant to be complementary. 

The NRC is seeking public comment 

in order to receive feedback from the 

widest range of interested parties and to 

ensure that all information relevant to 

developing this document is available to 

the NRC staff. This document is issued 

for comment only and is not intended 

for interim use. The NRC will review 

public comments received on the 

document, incorporate suggested 

changes as necessary, and issue the final 

NUREG–1855 for use. 

Dated at Rockville, Maryland, this 18th day 

of January, 2008. 

For the U.S. Nuclear Regulatory 

Commission. 

Christiana H. Lui, 

Director, Division of Risk Analysis, Office of 

Nuclear Regulatory Research. 

[FR Doc. E8–2082 Filed 2–4–08; 8:45 am] 

BILLING CODE 7590–01–P 

NUCLEAR REGULATORY 

COMMISSION 

Sunshine Federal Register Notice 

AGENCY HOLDING THE MEETINGS: Nuclear 

Regulatory Commission. 

DATE: Weeks of February 4, 11, 18, 25, 

March 3, 10, 2008 

PLACE: Commissioners’ Conference 

Room, 11555 Rockville Pike, Rockville, 

Maryland. 

STATUS: Public and Closed. 

MATTERS TO BE CONSIDERED: 

Week of February 4, 2008 

Thursday, February 7, 2008 

12:55 p.m. 

Affirmation Session (Public Meeting) 

a. Final Rule—10 CFR 2.311 

‘‘Interlocutory Review of Rulings on 

Requests for Hearings/Petitions to 

Intervene, Selection of Hearing 

Procedures, and Requests by 

Potential Parties for Access to 

SUNSI and Safeguards Information’’

(RIN 3150–A108). 

b. Final Rule—Regulatory 

Improvements to the Nuclear 

Materials Management and 

Safeguards System (RIN 3150–

AH85). 

Week of February 11, 2008—Tentative 

Monday, February 11, 2008 

12:55 p.m. 

Affirmation Session (Public Meeting) 

(Tentative) 

a. Final Rule—10 CFR Part 73 

‘‘Safeguards Information Protection 

Requirements’’ (RIN 3150–AH57) 

(Tentative). 

1 p.m. 

Discussion of Security Issues 

(Closed—Ex. 1). 

Week of February 18, 2008—Tentative 

Tuesday, February 19, 2008 

10:30 a.m. 

Meeting with the National Academies 

Radiation Source Use and 

Replacement Study Committee 

(Closed—Ex. 1). 

Wednesday, February 20, 2008 

9:30 a.m. 

Periodic Meeting on New Reactor 

Issues, Part 1 (Public Meeting) 

(Contact: Donna Williams, 301–

415–1322). 

1:30 p.m. 

Periodic Meeting on New Reactor 

Issues, Part 2 (Public Meeting) 

(Contact: Donna Williams, 301–

415–1322). 

This meeting, parts 1 and 2, will be 

webcast live at the Web address—

http://www.nrc.gov. 

Week of February 25, 2008—Tentative 

There are no meetings scheduled for 

the Week of February 25, 2008. 

Week of March 3, 2008—Tentative 

There are no meetings scheduled for 

the Week of March 3, 2008. 

Week of March 10, 2008—Tentative 

There are no meetings scheduled for 

the Week of March 10, 2008. 

* * * * * 

*The schedule for Commission 

meetings is subject to change on short 

notice. To verify the status of meetings, 

call (recording)—(301) 415–1292. 

Contact person for more information: 

Michelle Schroll, (301) 415–1662. 

* * * * * 

The NRC Commission Meeting 

Schedule can be found on the Internet 

at: http://www.nrc.gov/about-nrc/policymaking/schedule.html. 

* * * * * 

The NRC provides reasonable 

accommodation to individuals with 

disabilities where appropriate. If you 


rmajette on PROD1PC64 with NOTICES
6748 Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Notices 

1 15 U.S.C. 78k–1. 

need a reasonable accommodation to 

participate in these public meetings, or 

need this meeting notice or the 

transcript or other information from the 

public meetings in another format (e.g. 

braille, large print), please notify the 

NRC’s Disability Program Coordinator, 

Rohn Brown, at 301–492–2279, TDD: 

301–415–2100, or by e-mail at 

REB3@nrc.gov. Determinations on 

requests for reasonable accommodation 

will be made on a case-by-case basis. 

* * * * * 

This notice is distributed by mail to 

several hundred subscribers; if you no 

longer wish to receive it, or would like 

to be added to the distribution, please 

contact the Office of the Secretary, 

Washington, DC 20555 (301–415–1969). 

In addition, distribution of this meeting 

notice over the Internet system is 

available. If you are interested in 

receiving this Commission meeting 

schedule electronically, please send an 

electronic message to dkw@nrc.gov. 

Dated: January 31, 2008. 

R. Michelle Schroll, 

Office of the Secretary. 

[FR Doc. 08–512 Filed 2–1–08; 10:37 am] 

BILLING CODE 7590–01–P 

SECURITIES AND EXCHANGE 

COMMISSION 

Proposed Collection; Comment 

Request 

Upon written request, copies available 

from: U.S. Securities and Exchange 

Commission, Office of Investor 

Education and Advocacy, 

Washington, DC 20549–0213. 

Extension: 

Rule 17Ac3–1(a); SEC File No. 270–96; 

OMB Control No. 3235–015; Form TA–

W(1669); SEC File No. 270–96; OMB 

Control No. 3235–0151. 

Notice is hereby given that pursuant 

to the Paperwork Reduction Act of 1995 

(44 U.S.C. 3501 et seq.) the Securities 

and Exchange Commission 

(‘‘Commission’’) is soliciting comments 

on the collection of information 

summarized below. The Commission 

plans to submit this existing collection 

of information to the Office of 

Management and Budget for extension 

and approval. 

Subsection (c)(4)(B) of Section 17A of 

the Securities Exchange Act of 1934 (15 

U.S.C. 78 et seq.) authorizes transfer 

agents registered with an appropriate 

regulatory agency (‘‘ARA’’) to withdraw 

from registration by filing with the ARA 

a written notice of withdrawal and by 

agreeing to such terms and conditions as 

the ARA deems necessary or 

appropriate in the public interest, for 

the protection of investors, or in the 

furtherance of the purposes of Section 

17A. 

In order to implement Section 

17A(c)(4)(B) of the Exchange Act the 

Commission, on September 1, 1977, 

promulgated Rule 17Ac3–1(a) (17 CFR 

240.17Ac3–1(a)) and accompanying 

Form TA–W (17 CFR 249b.101). Rule 

17Ac3–1(a) provides that notice of 

withdrawal from registration as a 

transfer agent with the Commission 

shall be filed on Form TA–W. Form TA–

W requires the withdrawing transfer 

agent to provide the Commission with 

certain information, including: (1) The 

locations where transfer agent activities 

are or were performed; (2) the reasons 

for ceasing the performance of such 

activities; (3) disclosure of unsatisfied 

judgments or liens; and (4) information 

regarding successor transfer agents. 

The Commission uses the information 

disclosed on Form TA–W to determine 

whether the registered transfer agent 

applying for withdrawal from 

registration as a transfer agent should be 

allowed to deregister and, if so, whether 

the Commission should attach to the 

granting of the application any terms or 

conditions necessary or appropriate in 

the public interest, for the protection of 

investors, or in furtherance of the 

purposes of Section 17A of the 

Exchange Act. Without Rule 17Ac3–1(a) 

and Form TA–W, transfer agents 

registered with the Commission would 

not have a means for voluntary 

deregistration when necessary or 

appropriate to do so. 

Respondents file approximately 50 

TA–Ws with the Commission annually. 

A Form TA–W filing occurs only once, 

when a transfer agent is seeking 

deregistration. Since the form is simple 

and straightforward, the Commission 

estimates that a transfer agent need 

spend no more than 30 minutes to 

complete a Form TA–W. Therefore, the 

total average annual burden to covered 

entities is approximately 25 hours of 

preparation and maintenance time. 

In view of the ready availability of the 

information requested by Form TA–W, 

its short and simple presentation, and 

the Commission’s experience with the 

filers, we estimate that approximately 

30 minutes is required to complete 

Form TA–W, including clerical time. 

Approximately 80 percent of these are 

completed by the transfer agent or its 

employees and approximately 20 

percent are completed by an outside 

filing agent. In either case, we estimate 

a cost of approximately $35 for each 30 

minutes. Therefore, the total average 

annual cost burden is approximately 

$1,750. 

Written comments are invited on: (a) 

Whether the proposed collection of 

information is necessary for the proper 

performance of the functions of the 

agency, including whether the 

information will have practical utility; 

(b) the accuracy of the agency’s estimate 

of the burden of the collection of 

information; (c) ways to enhance the 

quality, utility, and clarity of the 

information collected; and (d) ways to 

minimize the burden of the collection of 

information on respondents, including 

through the use of automated collection 

techniques or other forms of information 

technology. Consideration will be given 

to comments and suggestions submitted 

in writing within 60 days of this 

publication. 

Comments should be directed to: R. 

Corey Booth, Director/Chief Information 

Officer, Securities and Exchange 

Commission, C/O Shirley Martinson, 

6432 General Green Way, Alexandria, 

Virginia 22312 or send an e-mail to: 

PRA_Mailbox@sec.gov. Comments must 

be submitted within 60 days of this 

notice. 

Dated: January 28, 2008. 

Florence E. Harmon, 

Deputy Secretary. 

[FR Doc. E8–1966 Filed 2–4–08; 8:45 am] 

BILLING CODE 8011–01–P 

SECURITIES AND EXCHANGE 

COMMISSION 

[Release No. 34–57238; File No. 4–429] 

Joint Industry Plan; Order Approving 

Joint Amendment No. 25 to the Plan 

for the Purpose of Creating and 

Operating an Intermarket Option 

Linkage Relating to Response Time for 

Certain Orders Sent Through the 

Linkage 

January 30, 2008. 

I. Introduction 

On November 9, 2007, November 13, 

2007, November 23, 2007, November 28, 

2007, and November 29, 2007, the 

American Stock Exchange LLC 

(‘‘Amex’’), the Boston Stock Exchange, 

Inc. (‘‘BSE’’), the Chicago Board Options 

Exchange, Incorporated (‘‘CBOE’’), the 

International Securities Exchange, LLC 

(‘‘ISE’’), the NYSE Arca, Inc. (‘‘NYSE 

Arca’’), and the Philadelphia Stock 

Exchange, Inc. (‘‘Phlx’’) (collectively, 

‘‘Participants’’), respectively, filed with 

the Securities and Exchange 

Commission (‘‘Commission’’) pursuant 

to Section 11A of the Securities 

Exchange Act of 1934 (‘‘Act’’) 1 and Rule 


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