An Approach for Using Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-Specific Changes to the Licensing Basis, 4520-4521 [2018-01901]
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Federal Register / Vol. 83, No. 21 / Wednesday, January 31, 2018 / Notices
Currently, the other employees in this
Region work in Seattle, Washington and
Portland, Oregon. The Seattle and
Portland offices will continue to be
open. The geographical area covered by
the Region will not be changed.
The most recent list of Regional and
Subregional Offices was published at 65
FR 53228–53229 on August 29, 2000, as
amended at 78 FR 44602–44603 on
Wednesday, July 24, 2012.
Concurrent with this Notice, the
NLRB is revising its Statement of
Organization and Functions to delete
reference to the Anchorage office as a
place where persons can obtain service
in Region 19. The revision to the
Board’s Statement of Organization and
Functions is attached.
Since July 20, 2017, the NLRB has
solicited and received feedback on the
proposed closure of the Anchorage,
Alaska office. The decision to close this
office and restructure the Agency’s
operations in the manner set forth here
was informed by comments from
stakeholders. Because this is a general
notice that is related to the organization
of the NLRB, it is not a regulation or
rule subject to Executive Order 12866.
Pursuant to the change set forth here,
the National Labor Relations Board has
amended its Statement of Organization
and Functions as follows:
Part 201—Description of Organization
sradovich on DSK3GMQ082PROD with NOTICES
Subpart B—Description of Field
Organization
(A) ‘‘Areas Served by Regional and
Subregional Offices’’ is amended in
following manner:
(1) Region 19 is amended to read as
follows:
Region 19. Seattle, Washington.
Services Alaska and all counties in
Washington except Clark; in Idaho,
services Adams, Benewah, Bonner,
Boundary, Clark, Clearwater, Custer,
Fremont, Idaho, Kootenai, Latah, Lemhi,
Lewis, Nez Perce, Shoshone, and Valley
Counties; and in Montana, services
Beaverhead, Broadwater, Cascade, Deer
Lodge, Flathead, Gallatin, Glacia,
Granite, Jefferson, Lake, Lewis, and
Clark, Liberty, Lincoln, Madison,
Meagher, Mineral, Missoula, Pondera,
Powell, Ravatti, Sanders, Silver Bow,
Teton, and Toole Counties.
Subregion 36. Portland, Oregon.
Services Oregon and Clark County in
Washington.
Persons may also obtain service from
a Resident Agent located in Anchorage,
Alaska.
By Direction of the Board.
VerDate Sep<11>2014
17:36 Jan 30, 2018
Jkt 244001
Dated: January 26, 2018.
Roxanne Rothschild,
Deputy Executive Secretary.
[FR Doc. 2018–01921 Filed 1–30–18; 8:45 am]
BILLING CODE 7545–01–P
NUCLEAR REGULATORY
COMMISSION
[NRC–2012–0110]
An Approach for Using Probabilistic
Risk Assessment in Risk-Informed
Decisions on Plant-Specific Changes
to the Licensing Basis
Nuclear Regulatory
Commission.
ACTION: Regulatory guide; issuance.
AGENCY:
The U.S. Nuclear Regulatory
Commission (NRC) is issuing Revision 3
to Regulatory Guide (RG) 1.174, ‘‘An
Approach for Using Probabilistic Risk
Assessment in Risk-Informed Decisions
on Plant-Specific Changes to the
Licensing Basis.’’ This proposed guide,
Revision 3, has been revised to
incorporate additional information
related to the evaluation of defense-indepth since Revision 2 of RG 1.174 was
issued in 2011. The proposed revision
includes additional guidance on
defense-in-depth to assure the defensein-depth philosophy is interpreted and
implemented consistently.
DATES: Revision 3 to RG 1.174 is
available on January 31, 2018.
ADDRESSES: Please refer to Docket ID
NRC–2012–0110 when contacting the
NRC about the availability of
information regarding this document.
You may obtain publicly-available
information related to this document
using any of the following methods:
• Federal Rulemaking website: Go to
https://www.regulations.gov and search
for Docket ID NRC–2012–0110. Address
questions about NRC dockets to Carol
Gallagher; telephone: 301–415–3463;
email: Carol.Gallagher@nrc.gov. For
technical questions, contact the
individuals listed in the FOR FURTHER
INFORMATION CONTACT section of this
document.
• NRC’s Agencywide Documents
Access and Management System
(ADAMS): You may obtain publiclyavailable documents online in the
ADAMS Public Documents collection at
https://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
SUMMARY:
PO 00000
Frm 00058
Fmt 4703
Sfmt 4703
email to pdr.resource@nrc.gov. The
ADAMS accession number for each
document referenced (if it is available in
ADAMS) is provided the first time that
it is mentioned in this document.
Revision 3 to RG 1.174 and the
regulatory analysis may be found in
ADAMS under Accession Nos.
ML17317A256 and ML16358A156
respectively.
• 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.
Regulatory guides are not
copyrighted, and NRC approval is not
required to reproduce them.
FOR FURTHER INFORMATION CONTACT:
Anders Gilbertson, telephone: 301–415–
1541, email: Anders.Gilbertson@nrc.gov,
and Harriet Karagiannis, telephone:
301–415–2493, email:
Harriet.Karagiannis@nrc.gov. Both are
staff of the Office of Nuclear Regulatory
Research, U.S. Nuclear Regulatory
Commission, Washington, DC 20555–
0001.
SUPPLEMENTARY INFORMATION:
I. Discussion
The NRC is issuing a revision to an
existing guide in the NRC’s ‘‘Regulatory
Guide’’ series. This series was
developed to describe and make
available to the public information
regarding methods that are acceptable to
the NRC staff for implementing specific
parts of the agency’s regulations,
techniques that the NRC staff uses in
evaluating specific issues or postulated
events, and data that the NRC staff
needs in its review of applications for
permits and licenses. Revision 3 of RG
1.174 describes an approach that is
acceptable to the staff of the NRC when
developing risk-informed applications
for a licensing basis change that
considers engineering issues and
applies risk insights.
Revision 3 of RG 1.174 was issued
with a temporary identification of Draft
Regulatory Guide, DG–1285. This
revision (Revision 3) presents up-to-date
defense-in-depth guidance using precise
language to assure the defense-in-depth
philosophy is interpreted and
implemented consistently. Revision 3
contains significant changes including
expansion of the guidance on the
meaning of, and the process for
assessing, the defense-in-depth
considerations.
In addition, this revision adopts the
term ‘‘PRA Acceptability,’’ including
related phrasing variants, in place of
terms such as ‘‘PRA quality,’’ ‘‘PRA
technical adequacy,’’ and ‘‘technical
E:\FR\FM\31JAN1.SGM
31JAN1
Federal Register / Vol. 83, No. 21 / Wednesday, January 31, 2018 / Notices
adequacy’’ to describe the
appropriateness of the PRA used to
support risk-informed licensing
submittals. Other changes in this
revision include expanding the
discussions on uncertainties, including
aggregation of risk results, consistent
with NUREG–1855, ‘‘Guidance on the
Treatment of Uncertainties Associated
with PRAs in Risk-Informed
Decisionmaking’’ (ADAMS Accession
No. ML17062A466), updating the risk
acceptance guideline figures, and
incorporating discussions related to
application of this guide to new
reactors.
Regarding the guidance in Section
C.6.3 of the guide on the licensee
submittal documentation, the NRC has
accepted via a letter issued on May 3,
2017 (See ADAMS Accession No.
ML17079A427), an industry process
entitled ‘‘Close-out of Facts and
Observations (F&Os)’’ (See ADAMS
Accession No. ML17086A431) that
allows a licensee to formally close F&Os
that were generated during a peer
review process. If a licensee meets the
conditions of acceptance as described in
the NRC’s letter, a licensee does not
need to submit the closed F&Os in any
future applications. It should be noted
that the NRC position in the May 3rd
letter is expected to be incorporated into
the next revision of RG 1.200, ‘‘An
Approach for Determining the Technical
Adequacy of Probabilistic Risk
Assessment Results for Risk-Informed
Activities.’’
II. Additional Information
The NRC published a notice of the
availability of DG–1285 in the Federal
Register on April 7, 2017 (82 FR 17042),
for a 45-day public comment period.
The public comment period closed on
May 22, 2017. Public comments on DG–
1285 and the staff responses to the
public comments are available under
ADAMS under Accession No.
ML17261A618.
sradovich on DSK3GMQ082PROD with NOTICES
III. Congressional Review Act
This RG is a rule as defined in the
Congressional Review Act (5 U.S.C.
801–808). However, the Office of
Management and Budget has not found
it to be a major rule as defined in the
Congressional Review Act.
IV. Backfitting and Issue Finality
RG 1.174 describes an approach that
the NRC staff considers acceptable when
developing risk-informed applications
for a licensing basis change that
considers engineering issues and
applies risk insights. Issuance of this RG
does not constitute backfitting as
defined in section 50.109 of title 10 of
VerDate Sep<11>2014
17:36 Jan 30, 2018
Jkt 244001
the Code of Federal Regulations (10
CFR) (the Backfit Rule) and is not
otherwise inconsistent with the issue
finality provisions in 10 CFR part 52. As
discussed in the ‘‘Implementation’’
section of this RG, the NRC has no
current intention to impose this
guidance on holders of current
operating licenses or combined licenses.
This RG may be applied to
applications for amendments to
operating licenses or combined licenses
docketed by the NRC as of the date of
issuance, as well as future applications
submitted after the issuance of this
regulatory guide. Such action would not
constitute backfitting as defined in the
Backfit Rule or be otherwise
inconsistent with the applicable issue
finality provision in 10 CFR part 52,
inasmuch as such applicants or
potential applicants are not within the
scope of entities protected by the Backfit
Rule or the relevant issue finality
provisions in part 52.
Dated at Rockville, Maryland, this 25th day
of January 2018.
For the Nuclear Regulatory Commission.
Edward O’Donnell,
Acting Chief, Regulatory Guidance and
Generic Issues Branch, Division of
Engineering, Office of Nuclear Regulatory
Research.
[FR Doc. 2018–01901 Filed 1–30–18; 8:45 am]
BILLING CODE 7590–01–P
NUCLEAR REGULATORY
COMMISSION
Advisory Committee on Reactor
Safeguards; Notice of Meeting—
Revised
In accordance with the purposes of
Sections 29 and 182b of the Atomic
Energy Act (42 U.S.C. 2039, 2232b), the
Advisory Committee on Reactor
Safeguards (ACRS) will hold a meeting
February 8–10, 2018, 11545 Rockville
Pike, Rockville, Maryland 20852.
Thursday, February 8, 2018,
Conference Room T–2B1, 11545
Rockville Pike, Rockville, Maryland
20852
8:30 a.m.–8:35 a.m.: Opening
Remarks by the ACRS Chairman
(Open)—The ACRS Chairman will make
opening remarks regarding the conduct
of the meeting.
8:35 a.m.–10:30 a.m.: NuScale Design
Certification Application Request for
Exemption from General Design
Criterion 27 (Open/Closed)—The
Committee will hear briefings by and
discussion with representatives of the
NRC staff and NuScale regarding the
subject exemption application. [Note: A
PO 00000
Frm 00059
Fmt 4703
Sfmt 4703
4521
portion of this session may be closed in
order to discuss and protect information
designated as proprietary, pursuant to 5
U.S.C. 552b(c)(4)].
10:45 a.m.–12:15 p.m.: Biennial
Review and Evaluation of the NRC
Safety Research Program (Open)—The
Committee will hear discussion
regarding the NRC Safety Research
Program.
1:15 p.m.–6:00 p.m.: Preparation of
ACRS Reports (Open/Closed)—The
Committee will continue its discussion
of proposed ACRS reports [Note: A
portion of this session may be closed in
order to discuss and protect information
designated as proprietary, pursuant to 5
U.S.C. 552b(c)(4)].
Friday, February 9, 2018, Conference
Room T–2B1, 11545 Rockville Pike,
Rockville, Maryland 20852
8:30 a.m.–10:00 a.m.: Future ACRS
Activities/Report of the Planning and
Procedures Subcommittee and
Reconciliation of ACRS Comments and
Recommendations (Open/Closed)—The
Committee will hear discussion of the
recommendations of the Planning and
Procedures Subcommittee regarding
items proposed for consideration by the
Full Committee during future ACRS
meetings. [Note: A portion of this
meeting may be closed pursuant to 5
U.S.C. 552b(c)(2) and (6) to discuss
organizational and personnel matters
that relate solely to internal personnel
rules and practices of the ACRS, and
information the release of which would
constitute a clearly unwarranted
invasion of personal privacy.]
10:00 a.m.–6:00 p.m.: Preparation of
ACRS Reports (Open/Closed)—The
Committee will continue its discussion
of proposed ACRS reports. [Note: A
portion of this session may be closed in
order to discuss and protect information
designated as proprietary, pursuant to 5
U.S.C. 552b(c)(4)].
Saturday, February 10, 2018,
Conference Room T–2B1, 11545
Rockville Pike, Rockville, Maryland
20852
8:30 a.m.–12:00 p.m.: Preparation of
ACRS Reports (Open/Closed)—The
Committee will continue its discussion
of proposed ACRS reports. [Note: A
portion of this session may be closed in
order to discuss and protect information
designated as proprietary, pursuant to 5
U.S.C. 552b(c)(4)].
Procedures for the conduct of and
participation in ACRS meetings were
published in the Federal Register on
October 4, 2017 (82 FR 46312). In
accordance with those procedures, oral
or written views may be presented by
members of the public, including
E:\FR\FM\31JAN1.SGM
31JAN1
Agencies
[Federal Register Volume 83, Number 21 (Wednesday, January 31, 2018)]
[Notices]
[Pages 4520-4521]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-01901]
=======================================================================
-----------------------------------------------------------------------
NUCLEAR REGULATORY COMMISSION
[NRC-2012-0110]
An Approach for Using Probabilistic Risk Assessment in Risk-
Informed Decisions on Plant-Specific Changes to the Licensing Basis
AGENCY: Nuclear Regulatory Commission.
ACTION: Regulatory guide; issuance.
-----------------------------------------------------------------------
SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is issuing
Revision 3 to Regulatory Guide (RG) 1.174, ``An Approach for Using
Probabilistic Risk Assessment in Risk-Informed Decisions on Plant-
Specific Changes to the Licensing Basis.'' This proposed guide,
Revision 3, has been revised to incorporate additional information
related to the evaluation of defense-in-depth since Revision 2 of RG
1.174 was issued in 2011. The proposed revision includes additional
guidance on defense-in-depth to assure the defense-in-depth philosophy
is interpreted and implemented consistently.
DATES: Revision 3 to RG 1.174 is available on January 31, 2018.
ADDRESSES: Please refer to Docket ID NRC-2012-0110 when contacting the
NRC about the availability of information regarding this document. You
may obtain publicly-available information related to this document
using any of the following methods:
Federal Rulemaking website: Go to https://www.regulations.gov and search for Docket ID NRC-2012-0110. Address
questions about NRC dockets to Carol Gallagher; telephone: 301-415-
3463; email: [email protected]. For technical questions, contact
the individuals listed in the FOR FURTHER INFORMATION CONTACT section
of this document.
NRC's Agencywide Documents Access and Management System
(ADAMS): You may obtain publicly-available documents online in the
ADAMS Public Documents collection at https://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 [email protected]. The
ADAMS accession number for each document referenced (if it is available
in ADAMS) is provided the first time that it is mentioned in this
document. Revision 3 to RG 1.174 and the regulatory analysis may be
found in ADAMS under Accession Nos. ML17317A256 and ML16358A156
respectively.
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.
Regulatory guides are not copyrighted, and NRC approval is not
required to reproduce them.
FOR FURTHER INFORMATION CONTACT: Anders Gilbertson, telephone: 301-415-
1541, email: [email protected], and Harriet Karagiannis,
telephone: 301-415-2493, email: [email protected]. Both are
staff of the Office of Nuclear Regulatory Research, U.S. Nuclear
Regulatory Commission, Washington, DC 20555-0001.
SUPPLEMENTARY INFORMATION:
I. Discussion
The NRC is issuing a revision to an existing guide in the NRC's
``Regulatory Guide'' series. This series was developed to describe and
make available to the public information regarding methods that are
acceptable to the NRC staff for implementing specific parts of the
agency's regulations, techniques that the NRC staff uses in evaluating
specific issues or postulated events, and data that the NRC staff needs
in its review of applications for permits and licenses. Revision 3 of
RG 1.174 describes an approach that is acceptable to the staff of the
NRC when developing risk-informed applications for a licensing basis
change that considers engineering issues and applies risk insights.
Revision 3 of RG 1.174 was issued with a temporary identification
of Draft Regulatory Guide, DG-1285. This revision (Revision 3) presents
up-to-date defense-in-depth guidance using precise language to assure
the defense-in-depth philosophy is interpreted and implemented
consistently. Revision 3 contains significant changes including
expansion of the guidance on the meaning of, and the process for
assessing, the defense-in-depth considerations.
In addition, this revision adopts the term ``PRA Acceptability,''
including related phrasing variants, in place of terms such as ``PRA
quality,'' ``PRA technical adequacy,'' and ``technical
[[Page 4521]]
adequacy'' to describe the appropriateness of the PRA used to support
risk-informed licensing submittals. Other changes in this revision
include expanding the discussions on uncertainties, including
aggregation of risk results, consistent with NUREG-1855, ``Guidance on
the Treatment of Uncertainties Associated with PRAs in Risk-Informed
Decisionmaking'' (ADAMS Accession No. ML17062A466), updating the risk
acceptance guideline figures, and incorporating discussions related to
application of this guide to new reactors.
Regarding the guidance in Section C.6.3 of the guide on the
licensee submittal documentation, the NRC has accepted via a letter
issued on May 3, 2017 (See ADAMS Accession No. ML17079A427), an
industry process entitled ``Close-out of Facts and Observations
(F&Os)'' (See ADAMS Accession No. ML17086A431) that allows a licensee
to formally close F&Os that were generated during a peer review
process. If a licensee meets the conditions of acceptance as described
in the NRC's letter, a licensee does not need to submit the closed F&Os
in any future applications. It should be noted that the NRC position in
the May 3rd letter is expected to be incorporated into the next
revision of RG 1.200, ``An Approach for Determining the Technical
Adequacy of Probabilistic Risk Assessment Results for Risk-Informed
Activities.''
II. Additional Information
The NRC published a notice of the availability of DG-1285 in the
Federal Register on April 7, 2017 (82 FR 17042), for a 45-day public
comment period. The public comment period closed on May 22, 2017.
Public comments on DG-1285 and the staff responses to the public
comments are available under ADAMS under Accession No. ML17261A618.
III. Congressional Review Act
This RG is a rule as defined in the Congressional Review Act (5
U.S.C. 801-808). However, the Office of Management and Budget has not
found it to be a major rule as defined in the Congressional Review Act.
IV. Backfitting and Issue Finality
RG 1.174 describes an approach that the NRC staff considers
acceptable when developing risk-informed applications for a licensing
basis change that considers engineering issues and applies risk
insights. Issuance of this RG does not constitute backfitting as
defined in section 50.109 of title 10 of the Code of Federal
Regulations (10 CFR) (the Backfit Rule) and is not otherwise
inconsistent with the issue finality provisions in 10 CFR part 52. As
discussed in the ``Implementation'' section of this RG, the NRC has no
current intention to impose this guidance on holders of current
operating licenses or combined licenses.
This RG may be applied to applications for amendments to operating
licenses or combined licenses docketed by the NRC as of the date of
issuance, as well as future applications submitted after the issuance
of this regulatory guide. Such action would not constitute backfitting
as defined in the Backfit Rule or be otherwise inconsistent with the
applicable issue finality provision in 10 CFR part 52, inasmuch as such
applicants or potential applicants are not within the scope of entities
protected by the Backfit Rule or the relevant issue finality provisions
in part 52.
Dated at Rockville, Maryland, this 25th day of January 2018.
For the Nuclear Regulatory Commission.
Edward O'Donnell,
Acting Chief, Regulatory Guidance and Generic Issues Branch, Division
of Engineering, Office of Nuclear Regulatory Research.
[FR Doc. 2018-01901 Filed 1-30-18; 8:45 am]
BILLING CODE 7590-01-P