6746 Federal Register / Vol. 73, No. 24 / Tuesday, February 5, 2008 / Notices 

a successor employer, they must transfer 

the records to NIOSH. 

II. Special Issues for Comment 

OSHA has a particular interest in 

comments on the following issues: 

• Whether the proposed information 

collection requirements are necessary 

for the proper performance of the 

Agency’s functions, including whether 

the information is useful; 

• The accuracy of OSHA’s estimate of 

the burden (time and costs) of the 

information collection requirements, 

including the validity of the 

methodology and assumptions used; 

• The quality, utility, and clarity of 

the information collected; and 

• Ways to minimize the burden on 

employers who must comply; for 

example, by using automated or other 

technological information collection 

and transmission techniques. 

III. Proposed Actions 

OSHA is requesting that OMB extend 

its approval of the information 

collection requirements contained in the 

Standard on Commercial Diving 

Operations (29 CFR part 1910, subpart 

T). The Agency is requesting to retain its 

current burden hour total of 205,397 

associated with this Subpart; however, 

it is adding a cost of $2,765 for 

employers to transfer records to the 

National Institute for Occupational 

Safety and Health. The Agency will 

summarize the comments submitted in 

response to this notice and will include 

this summary in the request to OMB. 

Type of Review: Extension of a 

currently approved collection. 

Title: Standard on Commercial Diving 

Operations (29 CFR part 1910, subpart 

T). 

OMB Number: 1218–0069. 

Affected Public: Business or other forprofits. 

Number of Respondents: 3,000. 

Frequency: On occasion; annually. 

Average Time per Response: Varies 

from 3 minutes (.05 hour) to replace the 

safe practices manual to 1 hour to 

develop a new manual. 

Estimated Total Burden Hours: 

205,397. 

Estimated Cost (Operation and 

Maintenance): $2,765. 

IV. Public Participation—Submission of 

Comments on this Notice and Internet 

Access to Comments and Submissions 

You may submit comments in 

response to this document as follows: 

(1) Electronically at http:// 

www.regulations.gov, which is the 

Federal eRulemaking Portal; (2) by 

facsimile (Fax); or (3) by hard copy. All 

comments, attachments, and other 

material must identify the Agency name 

and the OSHA docket number for the 

ICR (Docket No. OSHA–2007–0087). 

You may supplement electronic 

submissions by uploading document 

files electronically. If you wish to mail 

additional materials in reference to an 

electronic or facsimile submission, you 

must submit them to the OSHA Docket 

Office (see the section of this notice 

titled ADDRESSES). The additional 

materials must clearly identify your 

electronic comments by your name, 

date, and the docket number so the 

Agency can attach them to your 

comments. 

Because of security procedures, the 

use of regular mail may cause a 

significant delay in the receipt of 

comments. For information about 

security procedures concerning the 

delivery of materials by hand, express 

delivery, messenger, or courier service, 

please contact the OSHA Docket Office 

at (202) 693–2350 (TTY (877) 889–

5627). 

Comments and submissions are 

posted without change at http:// 

www.regulations.gov. Therefore, OSHA 

cautions commenters about submitting 

personal information such as social 

security numbers and date of birth. 

Although all submissions are listed in 

the http://www.regulations.gov index, 

some information (e.g., copyrighted 

material) is not publicly available to 

read or download through this website. 

All submissions, including copyrighted 

material, are available for inspection 

and copying at the OSHA Docket Office. 

Information on using the http:// 

www.regulations.gov website to submit 

comments and access the docket is 

available at the website’s ‘‘User Tips’’

link. Contact the OSHA Docket Office 

for information about materials not 

available through the website, and for 

assistance in using the Internet to locate 

docket submissions. 

V. Authority and Signature 

Edwin G. Foulke, Jr., Assistant 

Secretary of Labor for Occupational 

Safety and Health, directed the 

preparation of this notice. The authority 

for this notice is the Paperwork 

Reduction Act of 1995 (44 U.S.C. 3506 

et seq.) and Secretary of Labor’s Order 

No. 5–2007 (72 FR 31159). 

Signed at Washington, DC, on January 30, 

2008. 

Edwin G. Foulke, Jr., 

Assistant Secretary of Labor for Occupational 

Safety and Health. 

[FR Doc. E8–2061 Filed 2–4–08; 8:45 am] 

BILLING CODE 4510–26–P 

NUCLEAR REGULATORY 

COMMISSION 

[NUREG–1855] 

‘‘Guidance on the Treatment of 

Uncertainties Associated with PRAs In 

Risk-Informed Decision Making, Draft 

Report for Comment’’

AGENCY: Nuclear Regulatory 

Commission. 

ACTION: Notice of availability of 

NUREG–1855, ‘‘Guidance on the 

Treatment of Uncertainties Associated 

with PRAs in Risk-Informed Decision 

Making, Draft Report for Comment,’’

and request for public comment. 

SUMMARY: The Nuclear Regulatory 

Commission (NRC) is announcing the 

availability of and is seeking comments 

on NUREG–1855, ‘‘Guidance on the 

Treatment of Uncertainties Associated 

with PRAs in Risk-Informed Decision 

Making, Draft Report for Comment.’’

DATES: Comments on this document 

should be submitted by March 28, 2008. 

Comments received after that date will 

be considered to the extent practical. To 

ensure efficient and complete comment 

resolution, comments should include 

references to the section, page, and line 

numbers of the document to which the 

comment applies, if possible. 

ADDRESSES: Members of the public are 

invited and encouraged to submit 

written comments to Michael Lesar, 

Chief, Rulemaking, Directives, and 

Editing Branch, Office of 

Administration, Mail Stop T6–D59, U.S. 

Nuclear Regulatory Commission, 

Washington, DC 20555–0001. Handdeliver comments attention to Michael 

Lesar, 11545 Rockville Pike, Rockville, 

MD, between 7:30 a.m. and 4:15 p.m. on 

Federal workdays. Comments may also 

be sent electronically to 

NRCREP@nrc.gov. 

This document, NUREG–1855, is 

available at the Agencywide Documents 

Access and Management System 

(ADAMS) Public Electronic Reading 

Room on the Internet at the NRC Web 

site at http://www.nrc.gov/reading-rm/ 

adams.html under Accession No. 

ML072990412 on the NRC Web site 

http://www.nrc.gov/reading-rm/doccollections/nuregs/docs4comment.html; 

and at the NRC Public Document Room, 

11555 Rockville Pike, Rockville, MD. 

The PDR’s mailing address is USNRC 

PDR, Washington, DC 20555; telephone 

(301) 415–4737 or (800) 397–4205; fax 

(301) 415–3548; e-mail PDR@NRC.GOV. 

FOR FURTHER INFORMATION, CONTACT: 

Mary Drouin, Division of Risk 

Assessment, Office of Nuclear 


rmajette on PROD1PC64 with NOTICES
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