Mitigation of Beyond-Design-Basis Events, 70609-70647 [2015-28589]
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Vol. 80
Friday,
No. 219
November 13, 2015
Part III
Nuclear Regulatory Commission
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10 CFR Parts 50 and 52
Mitigation of Beyond-Design-Basis Events; Proposed Rule
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NUCLEAR REGULATORY
COMMISSION
10 CFR Parts 50 and 52
[Docket Nos. PRM–50–97 and PRM–50–98;
NRC–2011–0189 and NRC–2014–0240]
RIN 3150–AJ49
Mitigation of Beyond-Design-Basis
Events
Nuclear Regulatory
Commission.
ACTION: Proposed rule.
AGENCY:
The U.S. Nuclear Regulatory
Commission (NRC) is proposing to
amend its regulations that establish
regulatory requirements for nuclear
power reactor applicants and licensees
to mitigate beyond-design-basis events.
The NRC is proposing to make
generically applicable requirements in
Commission orders for mitigation of
beyond-design-basis events and for
reliable spent fuel pool instrumentation.
This proposed rule would establish
regulatory requirements for an
integrated response capability,
including supporting requirements for
command and control, drills, training
and change control. This proposed rule
also would establish requirements for
enhanced onsite emergency response
capabilities. Finally, this proposed rule
would address a number of petitions for
rulemaking (PRMs) submitted to the
NRC following the March 2011
Fukushima Dai-ichi event. This
rulemaking is applicable to power
reactor licensees, power reactor license
applicants, and decommissioning power
reactor licensees. This rulemaking
combines two NRC activities for which
documents have been published in the
Federal Register—Onsite Emergency
Response Capabilities (RIN 3150–AJ11;
NRC–2012–0031) and Station Blackout
Mitigation Strategies (RIN 3150–AJ08;
NRC–2011–0299). The new
identification numbers for this
consolidated rulemaking are RIN 3150–
AJ49 and NRC–2014–0240.
DATES: Submit comments by February
11, 2016. 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 before this date. A public
meeting will be held during the public
comment period; refer to the NRC’s
public meeting schedule on the NRC
Web site at https://meetings.nrc.gov/
pmns/mtg.
ADDRESSES: You may submit comments
by any of the following methods:
• Federal Rulemaking Web site: Go to
https://www.regulations.gov and search
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SUMMARY:
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for Docket ID NRC–2014–0240. 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.
• Email comments to:
Rulemaking.Comments@nrc.gov. If you
do not receive an automatic email reply
confirming receipt, then contact us at
301–415–1677.
• Fax comments to: Secretary, U.S.
Nuclear Regulatory Commission at 301–
415–1101.
• Mail comments to: Secretary, U.S.
Nuclear Regulatory Commission,
Washington, DC 20555–0001, ATTN:
Rulemakings and Adjudications Staff.
• Hand deliver comments to: 11555
Rockville Pike, Rockville, Maryland
20852, between 7:30 a.m. and 4:15 p.m.
(Eastern Time) Federal workdays;
telephone: 301–415–1677.
You may submit comments on the
guidance documents and the
information collections by the methods
indicated in the ‘‘Availability of
Guidance’’ and ‘‘Paperwork Reduction
Act’’ sections of this document.
For additional direction on obtaining
information and submitting comments,
see ‘‘Obtaining Information and
Submitting Comments’’ in the
SUPPLEMENTARY INFORMATION section of
this document.
FOR FURTHER INFORMATION CONTACT:
Timothy Reed, Office of Nuclear Reactor
Regulation, telephone: 301–415–1462,
email: Timothy.Reed@nrc.gov; or Eric
Bowman, Office of Nuclear Reactor
Regulation, telephone: 301–415–2963,
email: Eric.Bowman@nrc.gov. Both are
staff of the U.S. Nuclear Regulatory
Commission, Washington, DC 20555–
0001.
SUPPLEMENTARY INFORMATION:
Executive Summary
A. Need for the Regulatory Action
The U.S. Nuclear Regulatory
Commission (NRC) is proposing to
amend its regulations to establish
regulatory requirements for nuclear
power reactor applicants and licensees
to mitigate beyond-design-basis events.
This proposed rule would make
Commission Order EA–12–049 and
Order EA–12–051 generically
applicable; establish regulatory
requirements for an integrated response
capability, including supporting
requirements for command and control,
drills, training and change control;
include requirements for enhanced
onsite emergency response capabilities;
and address a number of petitions for
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rulemaking submitted to the NRC
following the March 2011 Fukushima
Dai-ichi event. This rulemaking would
be applicable to operating power reactor
licensees, power reactor license
applicants, and decommissioning power
reactor licensees. The NRC is
conducting this rulemaking to amend
the regulations to reflect requirements
imposed on current licensees by order
and to reflect the lessons learned from
the Fukushima accident.
B. Major Provisions
Major provisions of this proposed rule
include amendments or additions to
parts 50 and 52 of title 10 of the Code
of Federal Regulations (10 CFR) that
would:
• Revise the 10 CFR parts 50 and 52
‘‘Content of application’’ requirements
to reflect the additional information that
would be required for applications.
• Add proposed § 50.155, which
contains beyond-design-basis mitigation
requirements that would make Orders
EA–12–049 and EA–12–051 generically
applicable; requires an integrated
response capability for beyond-designbasis events that includes the
integration of two guideline sets with
the existing emergency operating
procedures; training requirements; drills
or exercise requirements; and change
control requirements.
• Revise 10 CFR part 50, appendix E,
to include enhanced capabilities for
assessing the impact and release of
radioactive materials for multi-unit
events; to remove references to specific
technology for each licensee’s
emergency response data system; to
include enhanced capabilities for onsite
and offsite communications; and to add
staffing analysis requirements to address
multi-unit events.
C. Costs and Benefits
The NRC prepared a draft regulatory
analysis to determine the expected costs
and benefits of the proposed rule. The
draft analysis demonstrates that the
proposed rule is justified. The draft
analysis examines the benefits and costs
of the proposed rule requirements
relative to the baseline (i.e., no action
alternative). Additionally, the draft
analysis estimates the historical costs
incurred as a result of implementation
of Order EA–12–049, Order EA–12–051,
and related industry initiatives. The
proposed rule costs are associated with
the proposed provisions that make
generically-applicable Order EA–12–049
and Order EA–12–051, as well as related
industry initiatives and the NRC’s
rulemaking-related costs. Because the
NRC uses a no action baseline to
estimate incremental costs, the total cost
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of the proposed rule is estimated to be
approximately $7.2 million for the
industry ($111,000 per site) to review
the rule against the previous
implementation of Orders EA–12–049
and EA–12–051 and make any
additional changes to plant programs
and procedures. This small impact
stems from the fact that the proposed
requirements are expected to be
implemented prior to the effective date
of the rule. However, this regulatory
analysis does not estimate the impacts
that may occur as a result of licensees
needing to make changes to mitigation
strategies including potential plant
modifications as a result of the need to
address the seismic and flooding
reevaluated hazards for reasonable
protection of the FLEX equipment. As
part of the proposed rule, the NRC is
seeking external stakeholder feedback to
enable these impacts to be estimated.
The proposed rule would result in a
total one-time cost to the NRC of
$880,000 to complete the rulemaking
(i.e., complete the proposed rule,
analyze public comments, hold public
meeting(s), and develop the final rule
and regulatory guidance).
Based on the NRC’s assessment of the
costs and benefits of the proposed rule,
the NRC has concluded that the
proposed rule is justified. For more
information, please see the draft
regulatory analysis (Accession No.
ML15265A610 in the NRC’s
Agencywide Documents Access and
Management System).
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Table of Contents
I. Obtaining Information and Submitting
Comments
A. Obtaining Information
B. Submitting Comments
II. Background
A. Fukushima Dai-ichi
B. NRC Near-Term Task Force
C. Implementation of the NTTF
Recommendations
D. Consolidation of Regulatory Efforts
E. Public Involvement
III. Petitions for Rulemaking
IV. Discussion
A. Rulemaking Objectives
B. Rulemaking Scope
C. Proposed Rule Organization
D. Proposed Rule Regulatory Bases
V. Section-by-Section Analysis
VI. Specific Requests for Comments
VII. Regulatory Flexibility Certification
VIII. Availability of Regulatory Analysis
IX. Availability of Guidance
X. Backfitting and Issue Finality
XI. Cumulative Effects of Regulation
XII. Plain Writing
XIII. Environmental Assessment and
Proposed Finding of No Significant
Environmental Impact
XIV. Paperwork Reduction Act
XV. Criminal Penalties
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XVI. Coordination With NRC Agreement
States
XVII. Compatibility of Agreement State
Regulations
XVIII. Voluntary Consensus Standards
XIX. Public Meeting
XX. Availability of Documents
before making the comment
submissions available to the public or
entering the comment into ADAMS.
I. Obtaining Information and
Submitting Comments
At 2:46 p.m. Japan standard time on
March 11, 2011, the Great East Japan
Earthquake, rated a magnitude 9.0,
occurred at a depth of approximately 25
kilometers, 130 kilometers east of
Sendai and 372 kilometers northeast of
Tokyo off the coast of Honshu Island.
This earthquake resulted in the
automatic shutdown of 11 nuclear
power plants (NPPs) at four sites along
the northeast coast of Japan including
three of six reactors at the Fukushima
Dai-ichi NPP (the three remaining plants
were in outages). The earthquake
precipitated a large tsunami that is
estimated to have exceeded 14 meters in
height at the Fukushima Dai-ichi NPP.
The earthquake and tsunami produced
widespread devastation across
northeastern Japan, resulting in
approximately 25,000 people dead or
missing, displacing many tens of
thousands of people, and significantly
impacting the infrastructure and
industry in the northeastern coastal
areas of Japan.
The earthquake and tsunami disabled
the majority of the external and internal
electrical power systems at the
Fukushima Dai-ichi NPP, leaving it with
only a few hours’ worth of battery
power. Since an NPP licensee typically
relies on electrical power to keep its
reactor core and spent fuel pool (SFP)
cool, this loss of internal and external
power was a significant challenge to
operators at Fukushima Dai-ichi. In
addition, the combination of severe
events challenged the implementation
of emergency plans and procedures.
A. Obtaining Information
Please refer to Docket ID NRC–2014–
0240 when contacting the U.S. Nuclear
Regulatory Commission (NRC) about the
availability of information for this
action. You may obtain publiclyavailable information related to this
action by any of the following methods:
• Federal Rulemaking Web site: Go to
https://www.regulations.gov and search
for Docket ID NRC–2014–0240.
• 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
email to pdr.resource@nrc.gov. For the
convenience of the reader, instructions
about obtaining materials referenced in
this document are provided in the
‘‘Availability of Documents’’ section.
• 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–2014–
0240 in your comment submission.
The NRC cautions you not to include
identifying or contact information that
you do not want to be publicly
disclosed in your comment submission.
The NRC will post all comment
submissions at https://
www.regulations.gov as well as enter the
comment submissions into ADAMS.
The NRC does not routinely 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 that
they do not want to be publicly
disclosed in their comment submission.
Your request should state that the NRC
does not routinely edit comment
submissions to remove such information
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II. Background
A. Fukushima Dai-ichi
B. NRC Near-Term Task Force
The NRC Chairman’s tasking
memorandum, COMGBJ–11–0002,
‘‘NRC Actions Following the Events in
Japan,’’ established a senior-level task
force referred to as the ‘‘Near-Term Task
Force’’ (NTTF) to conduct a systematic
and methodical review of NRC
regulations and processes to determine
if the agency should make safety
improvements in light of the events in
Japan. On July 12, 2011, the NRC staff
provided the Commission with the
report of the NTTF (NTTF Report) as an
enclosure to SECY–11–0093, ‘‘NearTerm Report and Recommendations for
Agency Actions Following the Events in
Japan.’’ The NTTF concluded that
continued U.S. plant operation and NRC
licensing activities present no imminent
risk to public health and safety. While
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the NTTF also concluded that the
current regulatory system has served the
NRC and the public well, it found that
enhancements to safety and emergency
preparedness are warranted and made a
dozen general recommendations for
Commission consideration. In
examining the Fukushima Dai-ichi
accident for insights for reactors in the
United States, the NTTF addressed
protecting against accidents resulting
from natural phenomena, mitigating the
consequences of such accidents, and
ensuring emergency preparedness. The
NTTF found that the Commission’s
longstanding defense-in-depth
philosophy, supported and modified as
necessary by state-of-the-art
probabilistic risk assessment
techniques, should continue to serve as
the primary organizing principle of its
regulatory framework. The NTTF
concluded that the application of the
defense-in-depth philosophy could be
strengthened by including explicit
requirements for beyond-design-basis
events.
In response to the NTTF Report, the
Commission directed the NRC staff to
engage with stakeholders to review and
assess the NTTF recommendations in a
comprehensive and holistic manner and
to provide the Commission with fullyinformed options and
recommendations. The Commission’s
Staff Requirements Memorandum
(SRM)–SECY–11–0093 provided that
direction and specifically directed the
NRC staff to pursue recommendation 1
of the NTTF Report independent of the
activities associated with the review of
the remaining recommendations. The
NTTF’s recommendation 1 was to
establish a logical, systematic, and
coherent regulatory framework for
adequate protection that appropriately
balances defense-in-depth and risk
considerations. This recommendation
included steps for the establishment of
a Commission policy statement for a
risk-informed defense-in-depth
framework including extended designbasis requirements and the initiation of
rulemaking to implement that
framework. The results of the NRC staff
work on NTTF recommendation 1 were
provided to the Commission in SECY–
13–0132, ‘‘Plan for Updating the U.S.
Nuclear Regulatory Commission’s Cost
Benefit Guidance,’’ and dispositioned
by the Commission in SRM–SECY–13–
0132, which specifically disapproved
the establishment of a design-basis
extension category of events and
associated regulatory requirements and
changes to the NRC’s approach to
defense-in-depth, but allowed for
reevaluation, as appropriate, in the
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context of the Commission direction on
the proposed policy statement for a
long-term Risk Management Regulatory
Framework. That work is outside of the
scope of this rulemaking. The
Commission has closed NTTF
recommendation 1.
C. Implementation of the NTTF
Recommendations
Following the issuance of the NTTF
Report, the NRC staff provided the
Commission with recommendations for
near-term action in SECY–11–0124,
‘‘Recommended Actions to be Taken
Without Delay from the Near-Term Task
Force Report,’’ dated September 9, 2011.
The suggested near-term actions
addressed several NTTF
recommendations associated with this
rulemaking, including NTTF
recommendations 4, 8, and 9.3. In SRM–
SECY–11–0124, dated October 18, 2011,
the Commission directed the NRC staff
to, among other things: initiate a
rulemaking to address NTTF
recommendation 4, Station Blackout
(SBO) regulatory actions, as an Advance
Notice of Proposed Rulemaking (ANPR);
designate the SBO rulemaking
associated with NTTF recommendation
4 as a high priority rulemaking; craft
recommendations that continue to
realize the strengths of a performancebased system as a guiding principle; and
consider approaches that are flexible
and able to accommodate a diverse
range of circumstances and conditions.
As discussed more fully in later
portions of this proposed rule, the
regulatory actions associated with NTTF
recommendation 4 evolved substantially
from this early Commission direction,
and included issuance of Order EA–12–
049 that, as implemented, ultimately
addressed all of NTTF recommendation
4 as well as other recommendations.
In SECY–11–0137, ‘‘Prioritization of
Recommended Actions To Be Taken in
Response to Fukushima Lessons
Learned,’’ dated October 3, 2011, the
NRC staff, based on its assessment of the
NTTF recommendations, proposed to
the Commission a three-tiered
prioritization for implementing
regulatory actions stemming from the
NTTF recommendations. The Tier 1
recommendations were those actions
having the greatest safety benefit that
could be implemented without
unnecessary delay. The Tier 2
recommendations were those actions
that needed further technical
assessment or critical skill sets to
implement, and the Tier 3
recommendations were longer-term
actions that depended on the
completion of a shorter-term action or
needed additional study to support a
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regulatory action. On December 15,
2011, the Commission approved the
staff’s recommended prioritization in
SRM–SECY–11–0137.
The NTTF recommendations that
form the basis of this rulemaking
activity are:
• NTTF recommendation 4:
Strengthen SBO mitigation capability at
all operating and new reactors for
design-basis and beyond-design-basis
external events;
• NTTF recommendation 7: Enhance
spent fuel pool makeup capability and
instrumentation for the spent fuel pool;
• NTTF recommendation 8:
Strengthen and integrate onsite
emergency response capabilities such as
emergency operating procedures (EOPs),
Severe Accident Management
Guidelines (SAMGs), and extensive
damage mitigation guidelines (EDMGs);
• NTTF recommendation 9: Require
that facility emergency plans address
staffing, dose assessment capability,
communications, training and exercises,
and equipment and facilities for
prolonged station blackout, multi-unit
events, or both;
• NTTF recommendation 10: Pursue
additional emergency protection topics
related to multi-unit events and
prolonged station blackout, including
command and control structure and the
qualifications of decision makers; and
• NTTF recommendation 11: Pursue
emergency management topics related
to decision making, radiation
monitoring, and public education,
including the ability to deliver
equipment to the site with degraded
offsite infrastructure.
In response to input received from
stakeholders, the NRC accelerated the
schedule originally proposed in SECY–
11–0137. On February 17, 2012, the
NRC staff recommended in SECY–12–
0025, ‘‘Proposed Orders and Requests
for Information in Response to Lessons
Learned From Japan’s March 11, 2011,
¯
Great Tohoku Earthquake and
Tsunami,’’ that the Commission issue
orders and requests for information.
To address Tier 1 NTTF
recommendation 4, the NRC issued
Order EA–12–049 on March 12, 2012,
requiring all U.S. nuclear power plant
licensees to implement strategies that
would allow them to cope without their
permanent electrical power sources for
an indefinite period of time. These
strategies would provide additional
capability to maintain or restore reactor
core and spent fuel cooling, as well as
protect the reactor containment. This
order also addressed: portions of NTTF
recommendation 9 to require that
facility emergency plans address
prolonged station blackouts and multi-
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unit events; portions of NTTF
recommendation 10 to pursue
additional emergency protection topics
related to multi-unit events and
prolonged station blackout; and portions
of NTTF recommendation 11 to pursue
emergency procedure topics related to
decision-making, radiation monitoring,
and public education.
To address Tier 1 NTTF
recommendation 7, the NRC issued
Order EA–12–051 on March 12, 2012,
requiring all U.S. nuclear power plant
licensees to have a reliable indication of
the water level in associated spent fuel
storage pools.
To address Tier 1 NTTF
recommendation 8, the NRC issued an
ANPR on April 18, 2012 (77 FR 23161),
to engage stakeholders in rulemaking
activities associated with the
methodology for integration of onsite
emergency response processes,
procedures, training and exercises.
D. Consolidation of Regulatory Efforts
While developing the NTTF
rulemakings, the NRC staff recognized
that efficiencies could be gained by
consolidating the rulemaking efforts due
to the inter-relationships among the
proposed changes. The NRC staff
recommended to the Commission in
COMSECY–13–0002, ‘‘Consolidation of
Japan Lessons Learned Near-Term Task
Force Recommendations 4 and 7
Regulatory Activities,’’ COMSECY–13–
0010, ‘‘Schedule and Plans for Tier 2
Order on Emergency Preparedness for
Japan Lessons Learned,’’ and SECY–14–
0046, ‘‘Fifth 6-Month Status Update on
Response to Lessons Learned From
Japan’s March 11, 2011, Great Tohoku
Earthquake and Subsequent Tsunami,’’
the consolidation of rulemaking
activities that address NTTF
recommendations 4, 7, 8, portions of 9,
10.2, and 11.1. Section II.B of this
document contains a more complete
discussion of the scope of NTTF
recommendations addressed by this
proposed rule. The Commission
approved these consolidations in the
associated SRMs. These consolidations
were intended to:
1. Align the proposed regulatory
framework with ongoing industry
implementation efforts to produce a
more coherent and understandable
regulatory framework. Given the
complexity of these requirements and
their associated implementation, the
NRC concluded that this is an important
objective for the regulatory framework.
2. Reduce the potential for
inconsistencies and complexities
between the related rulemaking actions
that could occur if the efforts remained
as separate rulemakings.
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3. Facilitate better understanding of
the proposed requirements for both
internal and external stakeholders, and
thereby lessen the impact on internal
and external stakeholders who would
otherwise need to review and comment
on multiple rulemakings while crossreferencing both proposed rules and sets
of guidance documents.
E. Public Involvement
This proposed rule consolidates two
previous rulemaking efforts: The Station
Blackout Mitigation Strategies
rulemaking, directed by SRM–
COMSECY–13–0002, and the Onsite
Emergency Response Capabilities
rulemaking, which implemented NTTF
recommendation 8. Both regulatory
efforts offered extensive external
stakeholder involvement opportunities,
including public meetings, ANPRs
issued for public comment, and draft
regulatory basis documents issued for
public comment. The major
opportunities for stakeholder
involvement were:
1. Station Blackout ANPR (77 FR
16175; March 20, 2012);
2. Onsite Emergency Response
Capabilities ANPR (77 FR 23161; April
18, 2012);
3. Station Blackout Mitigation
Strategies draft regulatory basis and
draft rule concepts (78 FR 21275; April
10, 2013). The final Station Blackout
Mitigation Strategies regulatory basis
was subsequently issued on July 23,
2013 (78 FR 44035); and
4. Onsite Emergency Response
Capabilities draft regulatory basis (78 FR
1154; January 8, 2013). The final Onsite
Emergency Response Capabilities
regulatory basis, with preliminary
proposed rule language, was
subsequently issued on October 25,
2013 (78 FR 63901).
The NRC described in each final
regulatory basis document how it
considered stakeholder feedback in
developing the respective final
regulatory basis, including
consideration of ANPR comments and
draft regulatory basis document
comments. Section 5 of the Station
Blackout Mitigation Strategies
regulatory basis document includes a
discussion of stakeholder feedback used
to develop the final regulatory basis.
Appendix B to the Onsite Emergency
Response Capabilities regulatory basis
includes a discussion of stakeholder
feedback used to develop that final
regulatory basis.
The public has had multiple
opportunities to engage in these
regulatory efforts. Most noteworthy
were the following:
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1. Preliminary proposed rule language
for Onsite Emergency Response
Capabilities made available to the
public on November 15, 2013 (78 FR
68774).
2. Consolidated rulemaking proof of
concept language made available to the
public on February 21, 2014.
3. Preliminary proposed rule language
for Mitigation of Beyond-Design-Basis
Events rulemaking made available to the
public on August 15, 2014.
4. Preliminary proposed rule language
for Mitigation of Beyond-Design-Basis
Events rulemaking made available to the
public on November 13, 2014, and
December 8, 2014, to support public
discussion with the Advisory
Committee on Reactor Safeguards
(ACRS).
The NRC staff has had numerous
interactions with the ACRS, and in all
cases these were public meetings,
including the following:
1. The ACRS Plant Operations and
Fire Protection subcommittee met on
February 6, 2013, to discuss the Onsite
Emergency Response Capabilities
regulatory basis.
2. The ACRS Regulatory Policies and
Practices subcommittee met on
December 5, 2013, and April 23, 2013,
to discuss the Station Blackout
Mitigation Strategies regulatory basis.
3. The ACRS full committee met on
June 5, 2013, to discuss the Station
Blackout Mitigation Strategies
regulatory basis.
4. The ACRS Fukushima
subcommittee met on June 23, 2014, to
discuss consolidation of Station
Blackout Mitigation Strategies and
Onsite Emergency Response Capabilities
rulemakings.
5. The ACRS full committee met on
July 10, 2014, to discuss consolidation
of Station Blackout Mitigation Strategies
and Onsite Emergency Response
Capabilities rulemakings.
6. The ACRS Fukushima
subcommittee met on November 21,
2014, to discuss preliminary proposed
Mitigation of Beyond-Design-Basis
Events rulemaking language.
7. The ACRS Fukushima full
committee met on December 4, 2014, to
discuss preliminary proposed
Mitigation of Beyond-Design-Basis
Events rulemaking language.
The NRC held many additional public
meetings that have supported the
development of this proposed rule.
Notwithstanding these efforts to engage
the public during the preparation of this
proposed rule, the Commission is
committed to the rigors of the noticeand-comment process enacted by the
Administrative Procedures Act, and is
providing members of the public a 90-
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day comment period on the
requirements NRC is proposing today.
III. Petitions for Rulemaking
During development of this proposed
rule, the NRC gave consideration to the
issues raised in six petitions for
rulemaking (PRMs) submitted to the
NRC, five from the Natural Resources
Defense Council Inc. (NRDC) (PRM–50–
97, PRM–50–98, PRM–50–100, PRM–
50–101, and PRM–50–102), and one
submitted by Mr. Thomas Popik (PRM–
50–96). The petitions filed by the NRDC
use the NTTF Report as the sole basis
for the PRMs. The NTTF
recommendations that the NRDC PRMs
rely upon are: 4.1, 7.5, 8.4, 9.1, and 9.2.
This proposed rule addresses each of
these recommendations, and therefore it
would resolve the issues raised by the
NRDC PRMs. The NRDC petitions were
dated July 26, 2011, and docketed by the
NRC on July 28, 2011. The NRC
published a notice of receipt in the
Federal Register on September 20, 2011
(76 FR 58165), and did not ask for
public comment at that time.
In PRM–50–97 (NRC–2011–0189), the
NRDC requested emergency
preparedness enhancements for
prolonged station blackouts in the areas
of communications ability, Emergency
Response Data System (ERDS)
capability, training and exercises and
equipment and facilities (NTTF
recommendation 9.2). The NRC
determined that the issues raised in this
PRM should be considered in the NRC’s
rulemaking process. The NRC’s
consideration of the issues raised in
PRM–50–97 are reflected in the
proposed provisions in § 50.155(d) and
(e), and the proposed amendments to
appendix E in both section VI and in
new section VII, ‘‘Communications and
Staffing Requirements for the Mitigation
of Beyond Design Basis Events.’’ The
NRC concludes that consideration of the
PRM issues, as discussed herein, would
address PRM–50–97. The NRC is closing
the docket for this petition and intends
to take final action on this petition in
the Federal Register notice the NRC
issues for the final Mitigation of
Beyond-Design-Basis Events rule.
In PRM–50–98 (NRC–2011–0189), the
NRDC requested emergency
preparedness enhancements for multiunit events in the areas of personnel
staffing, dose assessment capability,
training and exercises, and equipment
and facilities (NTTF recommendation
9.1). The NRC determined that the
issues raised in this PRM should be
considered in the NRC’s rulemaking
process. The NRC’s consideration of the
issues raised in PRM–50–98 are
reflected in the proposed provisions in
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§ 50.155(b)(4), (d), and (e); and the
proposed amendment to appendix E in
section IV as well as the addition of a
new section VII. The NRC concludes
that consideration of the PRM issues, as
discussed herein, would address PRM–
50–98. The NRC is closing the docket
for this petition and intends to take final
action on this petition in the Federal
Register notice the NRC issues for the
final Mitigation of Beyond-Design-Basis
Events rule.
In PRM–50–100, the NRDC requested
enhancement of spent fuel pool makeup
capability and instrumentation for the
spent fuel pool (NTTF recommendation
7.5). The NRC determined that the
issues raised in this PRM should be
considered in the NRC’s rulemaking
process, and the NRC published a
document in the Federal Register with
this determination on July 23, 2013 (78
FR 44034). The NRC’s consideration of
the issues raised in PRM–50–100 are
reflected in the proposed provisions in
§ 50.155(b)(1) and (c)(4). This proposed
rule would make generically applicable
NRC’s Order EA–12–051, ‘‘Spent Fuel
Pool Instrumentation.’’ The NRC
concludes that consideration of the PRM
issues, as discussed herein, would
address PRM–50–100. The NRC has
already closed the docket for this
petition and intends to take final action
on this petition in the Federal Register
notice the NRC issues for the final
Mitigation of Beyond-Design-Basis
Events rule.
In PRM–50–101, the NRDC requested
that § 50.63, ‘‘Loss of all alternating
current power,’’ be revised to establish
a minimum coping time of 8 hours for
a loss of all alternating current (ac)
power, establish the equipment,
procedures, and training necessary to
implement an extended loss of ac power
(72 hours) for core and spent fuel pool
cooling and for reactor coolant system
and primary containment integrity as
needed, and preplan/prestage offsite
resources to support uninterrupted core
and spent fuel pool cooling and reactor
coolant system and containment
integrity as needed (NTTF
recommendation 4.1). The NRC
determined that the issues raised in this
PRM should be considered in the NRC’s
rulemaking process, and the NRC
published a document in the Federal
Register with this determination on
March 21, 2012 (77 FR 16483). The
NRC’s consideration of the issues raised
in PRM–50–101 is reflected in the
proposed provisions in § 50.155(b)(1),
(c), (d), (e), and (f). The NRC concludes
that consideration of the PRM issues, as
discussed herein, would address PRM–
50–101. The NRC has already closed the
docket for this petition and intends to
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take final action on this petition in the
Federal Register notice the NRC issues
for the final Mitigation of BeyondDesign-Basis Events rule.
In PRM–50–102, the NRDC requested
more realistic, hands-on training and
exercises on SAMGs and EDMGs for
licensee staff expected to implement
those guideline sets and make decisions
during emergencies (NTTF
recommendation 8.4). The NRC
determined that the issues raised in this
PRM should be considered in the NRC’s
rulemaking process, and the NRC
published a document in the Federal
Register with this determination on
April 27, 2012 (77 FR 25104). The
NRC’s consideration of the issues raised
in PRM–50–102 are reflected in the
proposed provisions in § 50.155(d) and
(e). The NRC concludes that
consideration of the PRM issues, as
discussed herein, would address PRM–
50–102. The NRC has already closed the
docket for this petition and intends to
take final action on this petition in the
Federal Register notice the NRC issues
for the final Mitigation of BeyondDesign-Basis Events rule.
In PRM–50–96, Mr. Thomas Popik
requested that the NRC amend its
regulations to require facilities licensed
by the NRC to assure long-term cooling
and unattended water makeup of spent
fuel pools in the event of geomagnetic
storms caused by solar storms resulting
in long-term losses of power. The NRC
determined that the issues raised in this
PRM should be considered in the NRC’s
rulemaking process and the NRC
published a document in the Federal
Register with this determination on
December 18, 2012 (77 FR 74788). In
that Federal Register document, the
NRC also closed the docket for this
petition. Specifically, the NRC indicated
that it would monitor the progress of the
mitigation strategies rulemaking to
determine whether the requirements
established would address, in whole or
in part, the issues raised in the PRM. In
this context, the proposed requirements
in § 50.155(b)(1) and (c) and the
associated draft regulatory guidance
should address, in part, the issues raised
because these actions would establish
offsite assistance to support
maintenance of the key functions
(including both reactor and spent fuel
pool cooling) following an extended loss
of ac power that has been postulated for
geomagnetic events. Additional
consideration of these issues will result
from NRC’s participation in the
interagency task force developing a
National Space Weather Strategy and
the associated action plan. Both the
strategy and action plan are expected to
be completed in 2015. When the
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National plans are completed, the NRC
will reevaluate the need for additional
actions to address the impact of
geomagnetic storms on nuclear power
plants within the overall context of the
National Space Weather Strategy and
action plan.
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IV. Discussion
A. Rulemaking Objectives
The regulatory objectives of this
rulemaking are to: (1) Make the
requirements in Order EA–12–049 and
Order EA–12–051 generically
applicable, giving consideration to
lessons learned from implementation of
the orders; (2) establish new
requirements for an integrated response
capability; (3) establish new
requirements for actions that are related
to onsite emergency response; and (4)
address issues raised by PRMs that were
submitted to the NRC following the
March 2011 Fukushima Dai-ichi event.
1. Make the requirements in Order
EA–12–049 and Order EA–12–051
generically applicable, giving
consideration to lessons learned from
implementation of the orders.
An objective of this rulemaking is to
place the requirements in Order EA–12–
049 and Order EA–12–051 into the
NRC’s regulations so that they apply to
all current and future power reactor
applicants, and to provide regulatory
clarity and stability to power reactor
licensees. In making the requirements of
Order EA–12–049 genericallyapplicable, this proposed rule would
also consider the reevaluated hazard
information developed in response to
the March 12, 2012, NRC letter issued
under § 50.54(f) as part of providing
reasonable protection for mitigation
strategies equipment against external
flooding or seismic hazards. Because
these orders were issued to current
licensees, the requirements of these
orders would not apply to future
licensees. In the absence of this
proposed rule, these requirements
would need to be implemented for new
reactor applicants or licensees through
additional orders or license conditions
(as was done for the Vogtle Electric
Generating Plant, Units 3 and 4, Virgil
C. Summer Nuclear Station, Units 2 and
3, and Enrico Fermi Nuclear Plant, Unit
3, combined licenses (COLs),
respectively). As part of the rulemaking,
the NRC considered stakeholder
feedback and lessons-learned from the
implementation of the orders, including
any challenges or unintended
consequences associated with
implementation. The NRC reflected this
stakeholder input in the draft regulatory
guidance for this proposed rule.
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2. Establish new requirements for an
integrated response capability.
An objective of this rulemaking is to
establish requirements for an integrated
response capability for beyond-designbasis events that would integrate
existing strategies and guidelines
(implemented through guideline sets)
with the existing EOPs. This would
include guideline sets that implement
the requirements of current
§ 50.54(hh)(2) and Order EA–12–049.
This proposed rule would require
sufficient staffing, command and
control, training, drills, and change
control to support the integrated
response capability.
3. Establish new requirements for
actions that are related to onsite
emergency response.
An objective of this rulemaking is to
establish requirements for onsite
emergency response capabilities being
implemented in conjunction with the
implementation of Order EA–12–049.
This proposed rule contains new
requirements for staffing and
communications assessment, and
clarifies requirements for multiple
source term dose assessment.
4. Address a number of PRMs
submitted to the NRC following the
March 2011 Fukushima Dai-ichi event.
An objective of this rulemaking is to
address the five PRMs filed by the
NRDC that raise issues that pertain to
the technical objectives of this
rulemaking. The petitions rely solely on
the NTTF Report, and request that the
NRC undertake rulemaking in a number
of areas that would be addressed by this
proposed rule. This proposed rule
would also address, in part, the PRM
submitted by Mr. Thomas Popik.
B. Rulemaking Scope
The scope of this rulemaking,
described in terms of the relationship to
various NTTF recommendations that
provided the regulatory impetus for this
proposed rule, includes:
1. All the requirements that were
within the scope of Station Blackout
Mitigation Strategies rulemaking. These
requirements address NTTF
recommendations 4 and 7. This aspect
of the proposed rule would also address
NTTF recommendation 11.1 regarding
onsite emergency resources to support
multi-unit events with station blackout,
including the need to deliver equipment
to the site despite degraded offsite
infrastructure. This provision currently
is being implemented through Order
EA–12–049.
2. All the requirements that were
within the scope of the Onsite
Emergency Response Capabilities
rulemaking. These requirements address
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NTTF recommendation 8, as directed by
SRM–SECY–11–0137. This aspect of
this proposed rule also would address
command and control issues in NTTF
recommendation 10.2.
3. Numerous requirements regarding
onsite emergency response actions being
implemented by Order EA–12–049; in
addition, NRC staff has developed draft
guidance to support the emergency
response aspect of this proposed rule.
The specific regulatory actions related
to emergency response in this proposed
rule and the associated NTTF
recommendations are:
a. Staffing and communications
requirements: would address NTTF
recommendation 9.3; also discussed in
NTTF recommendations 9.1 and 9.2.
These regulatory issues currently are
being implemented through Order EA–
12–049. The proposed requirements also
address supporting facilities and
equipment, as discussed in the same
NTTF recommendations.
b. Multiple source term dose
assessment requirements: would
address NTTF recommendation 9.3; also
discussed in NTTF recommendation
9.1. This regulatory issue is being
implemented voluntarily by industry.
c. Training and exercise requirements:
would address NTTF recommendation
9.3; also discussed in NTTF
recommendations 9.1 and 9.2. These
regulatory issues currently are being
implemented through Order EA–12–
049.
Accordingly, this rulemaking would
address all the justifiable
recommendations in NTTF
recommendations 4, 7, 8, 9.1, 9.2, 9.3
(with one exception—ERDS
modernization is addressed, but
maintenance of ERDS capability
throughout the accident is not
addressed), 10.2, and 11.1.
This rulemaking also would address
NTTF recommendation, 9.4: modernize
ERDS. This action differs from the other
regulatory actions because ERDS is not
an essential component of a licensee’s
capability to mitigate a beyond-designbasis external event. However, ERDS is
an important form of communication
between the licensee and the NRC.
Modernization of ERDS has been
completed voluntarily by industry;
therefore, NRC has included
amendments to remove the technologyspecific references in 10 CFR part 50,
appendix E, section VI, ‘‘Emergency
Response Data System,’’ in this
proposed rule.
SAMG Implementation
Unlike the requirements for the
mitigation of beyond-design-basis
external events imposed by Order EA–
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12–049, and requirements that address
the loss of large areas of the plant due
to explosions and fire in current
§ 50.54(hh)(2) (NRC is proposing in this
rule to move these requirements to a
new section), SAMGs are not an NRC
requirement imposed on licensees.
Nevertheless, SAMGs are well
established guidance documents that
have been developed by the nuclear
power industry with substantial NRC
involvement, have been implemented
by every operating nuclear power
reactor licensee for decades, and are the
subject of a license condition for
combined licenses. Following the Three
Mile Island (TMI) accident in 1979, the
nuclear power industry revised its
emergency response procedures to be
symptom-based, and as a result,
developed EOPs. In the mid-to-late
1980s, the NRC and the nuclear power
industry identified a need to consider
plant conditions that could lead to a
severe accident. These efforts led to the
nuclear industry voluntarily initiating a
coordinated program on severe accident
management in 1990. Section 5 of
Nuclear Energy Institute (NEI) 91–04
(formerly Nuclear Management and
Resources Council (NUMARC) 91–04),
Revision 1, ‘‘Severe Accident Closure
Guidelines,’’ describes the elements of
the industry’s severe accident
management closure actions. The
program involves the development of:
(1) A structured method by which
utilities could systematically evaluate
and enhance their ability to deal with
potential severe accidents, (2) vendorspecific SAMGs for use by licensees in
developing plant-specific SAMGs, and
(3) guidance and material to support
utility activities related to training for
severe accidents. In 1992, the Electric
Power Research Institute (EPRI)
developed the SAMG Technical Basis
Report (TBR). Volume one of this report
covers general actions that could be
taken to manage a severe accident
(referred to as SAMG candidate high
level actions) and their effects, and
volume two is a detailed report on the
physics of accident progression. By
letter dated June 20, 1994, the NRC
accepted the industry’s approach for
mitigating the consequences of severe
accidents, including licensee regulatory
commitments to implement plantspecific SAMGs, using the guidance
developed in section 5 of NEI 91–04,
Revision 1, by December 31, 1998.
The NRC assessed the ongoing
implementation of SAMGs at a select
number of plants during the 1997–1998
time frame as discussed in SECY–97–
132, ‘‘Status of the Integration Plan for
Closure of Severe Accident Issues and
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the Status of Severe Accident
Research,’’ and SECY–98–131, ‘‘Status
of the Integration Plan for Closure of
Severe Accident Issues and the Status of
Severe Accident Research,’’ and
concluded that the results of the
voluntary initiative achieved the NRC’s
overall objectives established for
accident management in SECY–89–012,
‘‘Staff Plans for Accident Management
Regulatory and Research Programs.’’ In
2012, EPRI revised the TBR to account
for the initial lessons learned from the
Fukushima Dai-ichi accidents, as well
as enhanced understanding of severe
accident behavior gained from
additional research and analyses
performed since the original report was
published.
Following the events at Fukushima
Dai-ichi, the NRC again inspected the
implementation, ongoing training, and
maintenance of licensee SAMGs at all
power reactor sites, except those that
had permanently ceased operation,
through performance of Temporary
Instruction (TI)-2515/184, ‘‘Availability
and Readiness Inspection of Severe
Accident Management Guidelines
(SAMGs).’’ The NRC found that some
licensees had not maintained the
SAMGs in accordance with the latest
revisions of the applicable industry
generic technical guidelines nor
conducted training in a consistent and
systematic manner. The NRC inspectors
attributed the inconsistent
implementation and training on SAMGs
to the voluntary nature of this initiative.
Based in part on the findings of the
inspections previously described, the
NTTF recommended that the NRC
require licensees to integrate onsite
emergency response capabilities,
including SAMGs. Unlike the Mitigating
Strategies Order requirements, which
were justified as necessary for adequate
protection under § 50.109, SAMGs do
not involve adequate protection.
Because the imposition of SAMGs also
would not be necessary to bring
licensees into compliance with an
existing NRC requirement, a SAMGs
requirement would have to be justified
under § 50.109 as a cost-justified,
substantial increase in protection of the
public health and safety or common
defense and security.
In the regulatory analysis where the
NRC considered an option to require
SAMGs (i.e., option 2 of the regulatory
analysis including the supporting
proposed backfit justification), the NRC
used available quantified risk
information that might provide risk
insights to inform the justification. In
this regard, the NRC looked at its recent
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technical analysis 1 performed in
support of the Containment Protection
and Release Reduction (CPRR)
rulemaking regulatory basis.2 This
analysis is relevant because it examined
regulatory alternatives that would be
implemented after core damage to
determine whether any of the
contemplated approaches can be
justified under the NRC’s backfitting
provisions. In this respect, the risk
insights stemming from this work might
have relevance to NRC’s consideration
of SAMG requirements where the safety
benefits would occur after core damage.
The NRC also considered other postFukushima regulatory efforts (e.g., the
safety benefits due to implementation of
Order EA–12–049 mitigation strategies,
which result in a reduction in core
damage frequency) within this technical
analysis. The NRC acknowledges that
the work to support the CPRR
rulemaking was not conducted to
provide a complete quantitative
measure of the possible safety benefits
of SAMG requirements, particularly
with regard to how SAMGs might
benefit maintenance of containment
integrity or support more informed
protective action recommendations by
the emergency response organization
following core damage. However, this
technical analysis work does provide
valuable risk insights that the NRC
concluded were important to fully
inform the decision on this matter, and
that additionally influenced the NRC’s
development of the SAMG framework
considered in the regulatory analysis.
The CPRR technical analysis includes
a screening for a conservative high
estimate of frequency-weighted
individual latent cancer fatality risk.
This screening analysis combined the
highest ELAP frequency among all
boiling water reactors (BWRs) with
Mark I or Mark II containments, a
success probability in the FLEX
equipment 3 of 0.6 per demand
following core melt, the highest
conditional individual latent cancer
fatality (ILCF) risk among all BWRs with
Mark I or Mark II containments, and a
worst case re-habitability assumption.
This yields a conservative high estimate
of frequency-weighted individual latent
1 The technical risk insights were presented to the
ACRS Reliability and PRA, and Fukushima
subcommittees on August 22, 2014, and to the
ACRS Reliability and PRA subcommittee on
November 19, 2014. This footnote is informational
only; it does not imply advisory committee
endorsement of the technical analysis.
2 Refer to the draft regulatory basis for
Containment Protection and Release Reduction.
3 Refer to NEI 12–06, Revision 0, ‘‘Diverse and
Flexible Coping Strategies (FLEX) Implementation
Guide,’’ for a description of industry-developed
guidance on FLEX strategies and equipment.
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cancer fatality risk of approximately 7 ×
10 ¥8 per reactor year. This combination
of assumptions does not exist at any
BWR with a Mark I or Mark II
containment. This conservative estimate
of the risk can be viewed as the
maximum possible risk that could be
removed or reduced through regulatory
action (i.e., the CPRR technical analysis
examines a range of post-core damage
regulatory actions for BWRs with Mark
I or Mark II containments to identify
whether any of these proposals might
result in a safety benefit large enough to
be justified under the Commission’s
backfitting requirements). This estimate
is compared against the quantitative
health objective, which is a quantitative
measure that equates to 1⁄10 of 1 percent
of the ILCF risk and relates to the
Commission’s Safety Goal Policy. This
quantitative metric for the individual
latent cancer fatality risk is
approximately 2 × 10¥6 per reactor year.
This technical work shows that the risk
is well below a level that equates to 1⁄10
of 1 percent of the surrounding
population’s latent cancer fatality risk.
This result also means, that, from a
quantitative standpoint, achieving risk
reductions that might satisfy backfitting
requirements is very unlikely. More
refined risk estimates from the same
work (i.e., which remove the worst case
assumptions and instead use
assumptions specific to each power
reactor), push this potential risk benefit
significantly lower, by approximately
two orders of magnitude. This result
demonstrates the benefits of the NRC’s
regulations to both effectively keep the
frequency of core damage very low at
BWRs with Mark I and II containments,
and to ensure through emergency
preparedness requirements that the
surrounding population is adequately
protected. Those general attributes of
the NRC’s regulations that result in this
risk insight (i.e., requirements that
resulted in reduced core damage
frequencies and effective emergency
preparedness requirements) apply to all
power reactor designs. The NRC has not
performed a comprehensive quantitative
analysis of the potential safety benefits
of SAMG requirements for all types of
reactors. However, the general risk
insights obtained from the CPRR work
align well with NUREG–1935, ‘‘State-ofthe-Art Reactor Consequence Analyses
(SOARCA) Report,’’ (November 2012),
which shows very low levels of risk
(e.g., individual early fatality risk is
essentially zero, ILCF risk is thousands
of times lower than the NRC Safety
Goal, and millions of times lower than
the general cancer fatality risk in the
United States from all causes). As such,
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the available risk insights point to the
likely outcome that a comprehensive
quantitative analysis, where the
proposed regulatory action is intended
to provide its safety benefit in the postcore damage environment (as is the case
for use of SAMGs), would not
demonstrate a substantial safety benefit.
In addition, for the specific case of the
consideration of SAMG requirements in
this proposed rule, the proposed
regulatory action’s benefit must also
recognize that imposing SAMG
requirements must be compared with
the current regulatory state, (i.e.,
SAMGs) exist and are voluntarily in use
under an industry initiative.
Along with its quantitative analysis,
the Commission considered a proposed
SAMG backfit analysis that relied on
qualitative factors, relating SAMGs to
defense-in-depth. The Commission
concluded that the imposition of SAMG
requirements was not warranted as it
did not meet the substantial additional
protection criteria under 10 CFR
50.109(a)(3), and consequently SAMGs
will continue to be implemented and
maintained through a voluntary
industry initiative. The Commission
notes that the industry indicated it
would strengthen its voluntary initiative
for SAMGs in its letter dated May 11,
2015.
Scope of Procedure and Guideline
Integration
This rulemaking limits the scope of
the integrated response capability to two
guideline sets. This proposed rule
includes these new provisions:
1. § 50.155(b)(1), resulting from Order
EA–12–049, and addressing beyonddesign-basis external events; these
requirements are those that the NRC
termed in previous regulatory basis
interactions as ‘‘Station Blackout
Mitigation Strategies.’’ The nuclear
industry refers to these as ‘‘FLEX
Support Guidelines’’ (FSGs).
2. § 50.155(b)(2) (current
§ 50.54(hh)(2)). These requirements are
defined in NEI 06–12, Revision 2, ‘‘B.5.b
Phase 2 & 3 Submittal Guideline,’’ as a
subset of the strategies and guidelines
for addressing the loss of large areas of
the plant due to explosions and fires
and are termed ‘‘Extensive Damage
Mitigation Guidelines.’’ The NRC
proposes to expand the scope of the
generic term ‘‘EDMGs’’ to include all of
the strategies and guidelines used to
implement § 50.54(hh)(2).
The NRC is proposing this integrated
response capability structure to avoid
unnecessarily revisiting the existing
symptom-based EOPs that were
developed following the TMI accident.
The NRC has determined that current
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regulations addressing EOPs, which
include the quality assurance
requirements of criterion V,
‘‘Instructions, Procedures, and
Drawings,’’ and criterion VI, ‘‘Document
Control,’’ in appendix B to 10 CFR part
50, and the administrative controls
section of the technical specifications
for each plant as well as the guidance
provided in regulatory guides and
technical reports (e.g., NUREG–0660,
‘‘NRC Action Plan Developed as a
Result of the TMI–2 Accident,’’ issued
May 1980; NUREG–0737, ‘‘Clarification
of TMI Action Plan Requirements,’’
issued November 1980; and NUREG–
0711, ‘‘Human Factors Engineering
Program Review Model,’’ issued
November 2012) provide sufficient
regulation and control of the EOPs to
provide reasonable assurance of
adequate protection of public health and
safety. In addition, the EOPs are the
subject of a national consensus standard
(American National Standards Institute/
American Nuclear Society 3.2 1994,
‘‘Administrative Controls and Quality
Assurance for the Operational Phase of
Nuclear Power Plants’’). In order to
avoid the unnecessary regulatory
burden that would result by
restructuring the EOPs, proposed
§ 50.155(b)(3) would require that the
FSGs, and EDMGs be integrated with
the EOPs, rather than moving the
requirements for EOPs to § 50.155.
Guideline Sets Excluded From This
Proposed Rule
During the development of this
proposed rule, other guideline sets were
considered for inclusion within the
integrated response capability. The
guideline sets considered included fire
response procedures, alarm response
procedures (ARPs), and abnormal
operating procedures (AOPs).
Similar to the EOPs, ARPs and AOPs
are subject to existing NRC regulations
(e.g., 10 CFR part 50, appendix B,
criteria V and VI) that adequately ensure
integration with other procedure sets in
use at power reactors. These procedures
have been used by operating power
reactor licensees in actual and
simulated events for many years; any
further integration effort to address
potential issues would likely have
already been identified and corrected by
existing processes (or will be identified
and corrected under the quality
assurance program).
The issue of whether to include fire
response procedures in the scope of
proposed § 50.155(b) was initially raised
as recommendation 1.g. by the ACRS in
its letter to the then-Chairman Jaczko
dated October 13, 2011, ‘‘Initial ACRS
Review of: (1) The NRC Near-Term Task
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considered with the agency’s Tier 3 actions
associated with NTTF Recommendation 3.
Force Report on Fukushima and (2)
Staff’s Recommended Actions to be
Taken Without Delay.’’ That letter
expressed the ACRS view that:
[The] efforts to integrate the onsite
emergency response capabilities should be
expanded to include the plant fire response
procedures. These procedures provide
operator guidance for coping with fires that
are beyond a plant’s original design basis.
Some plant-specific fire response procedures
instruct operators to manually de-energize
major electrical buses and realign fluid
systems in configurations that may not be
consistent with the guidance or expectations
in the EOPs. Experience from actual fire
events has shown that parallel execution of
fire procedures, Abnormal Operating
Procedures (AOPs), and EOPs can be difficult
and can introduce operational complexity.
Therefore, these procedures should also be
included in the comprehensive efforts to
better coordinate and integrate operator
responses during challenging plant
conditions.
This recommendation was reiterated
in the ACRS letter of November 8, 2011,
‘‘ACRS Review of Staff’s Prioritization
of Recommended Actions to Be Taken
in Response to Fukushima Lessons
Learned (SECY–11–0137).’’
In SECY–12–0025, enclosure 3, the
NRC documented the formal process
used in evaluating additional
recommendations that were made by the
ACRS as follows:
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The staff developed a process to
disposition all additional issues, including
recommendations by the ACRS. All issues
are reviewed by a panel of senior-level
advisors from different NRC program offices.
The panel determines whether each issue
represents a valid safety concern, and
whether there is a clear nexus to the
Fukushima Dai-ichi accident. If neither
criterion is met, or only one criterion is met,
the panel chooses to either disposition the
issue with no action, or direct it to one of the
NRC’s existing regulatory processes (e.g.,
generic issue process). If both criteria are
met, the issue is forwarded for further
consideration by the cognizant technical staff
in the appropriate NRC line organization.
Should the issue go forward, the cognizant
technical staff is tasked with developing a
proposal for Steering Committee (SC)
disposition. The SC may elect to take no
further action, disposition the issue using an
existing NRC process, or prioritize the issue
as a Tier 1, 2, or 3 item under the Japan
Lessons–Learned Program.
By letter dated February 27, 2012, the
NRC responded to the ACRS
recommendations of October 13, 2011,
and November 8, 2011, discussing the
disposition of ACRS recommendation
1.g. as follows:
The NRC staff evaluated how to
appropriately integrate the fire response
procedure into a licensee’s onsite emergency
response capabilities and determined that the
fire response procedures would be best
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This disposition of the ACRS
recommendation also was documented
in SECY–12–0025. In its letter of March
13, 2012, the ACRS acknowledged that
the formal screening process used by the
NRC for additional recommendations
was acceptable, but nevertheless
expressed the view that integration of
the fire response procedures presents
similar challenges to those associated
with the integration of other guideline
sets such as the EDMGs with the EOPs.
Accordingly, the ACRS recommended
that the integration effort should
address fire response procedures as part
of NTTF recommendation 8 rather than
as a seismic-induced-fire issue under
NTTF recommendation 3.
Recognizing the continued ACRS
interest in the integration of fire
response procedures with onsite
emergency actions and the existence of
an additional program of work to be
taken up on the ACRS recommendation,
the NRC has concluded that the
reasoning underlying the initial
prioritization of ACRS recommendation
1.g was sound and it would be
inappropriate to include fire response
procedure integration within this
rulemaking effort. The NRC offers the
following reasons for the exclusion of
firefighting strategies and procedures
from the scope of integration in this
rulemaking:
1. The NRC-required fire protection
program is designed to function
autonomously from other ongoing
activities and is implemented by a fire
brigade that is manned in all modes of
operation and is well-trained.
Firefighting activities are led by
personnel knowledgeable of overall
plant operations, including the
equipment necessary for safe shutdown
of the plant. These personnel
communicate with the main control
room in order to prioritize and
deconflict activities.
2. Comprehensive firefighting
strategies and implementing procedures
have been developed for each area of the
plant and fire brigade qualified
individuals participate in drills on a
quarterly basis to demonstrate
proficiency with the use of these
strategies and procedures in the context
of concurrent use of other, nonintegrated procedures throughout the
plant.
3. The EOPs, EDMGs, and FSGs
account for equipment lost due to
concurrent fires during events by
providing alternate methods to
accomplish the functions the equipment
was to have performed.
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C. Proposed Rule Organization
To accomplish the NRC’s rulemaking
objectives in a manner consistent with
the described scope, this proposed rule
has been based on these precepts:
1. The central requirement would be
an integrated response capability that
includes currently existing procedures
and guideline sets. Additional
requirements would support this
integrated response capability.
The mitigation strategies under Order
EA–12–049 established the basic
framework for broader capability to
mitigate beyond-design-basis external
events that impact an entire reactor site.
This framework includes: Supporting
drills, training, change control, staffing,
communications capability, multiple
source term dose assessment capability,
and command and control. As a result,
the proposed new § 50.155 is structured
to have:
1. Integrated response requirements in
paragraph (b).
2. Supporting equipment
requirements in paragraph (c) that
include equipment required by both
Order EA–12–049 and Order EA–12–
051.
3. External hazard equipment
protection requirements in paragraph (c)
that reflect the hazard information
developed under the § 50.54(f) letter of
March 12, 2012.
4. Supporting training, drills, and
change control requirements in
paragraphs (d), (e), and (f).
5. Implementation requirements that
establish compliance deadlines in
paragraph (g).
In addition to proposed § 50.155, this
proposed rulemaking is structured to
have (1) supporting power reactor
operating license application
requirements (under either 10 CFR parts
50 or 52 processes) in the appropriate
content of applications portions, and (2)
requirements that relate to enhanced
onsite emergency response capabilities
located in appendix E to 10 CFR part 50,
to include a new section VII.
The proposed requirements
previously described would apply to
both current licensees and new
applicants (under either 10 CFR parts 50
or 52) as established by proposed
paragraph § 50.155 (a). Finally, this
proposed rule contains provisions to
facilitate power reactor
decommissioning.
D. Proposed Rule Regulatory Bases
Applicability
This proposed rule would apply, in
whole or in part, to applicants for and
holders of an operating license for a
nuclear power reactor under 10 CFR
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part 50, or combined license under 10
CFR part 52.
This proposed rule would not apply
to applicants for, or holders of, an
operating license for a non-power
reactor under 10 CFR part 50. Nonpower reactor licensees would not be
subject to this proposed rule because
non-power reactors pose lower
radiological risks to the public from
accidents than do power reactors
because: (1) The core radionuclide
inventories in non-power reactors are
lower than in power reactors as a result
of their lower power levels and often
shorter operating cycle lengths; and (2)
non-power reactors have lower decay
heat associated with a lower risk of core
melt and fission product release in a
loss-of-coolant accident than power
reactors.
A holder of a general or specific 10
CFR part 72 independent spent fuel
storage installation (ISFSI) license for
dry cask storage would not be subject to
this proposed rule for the ISFSI, because
the decay heat load of the irradiated fuel
would be sufficiently low prior to
movement to dry cask storage that it
could be air-cooled. This would meet
the proposed sunsetting criteria
(discussed later in this section of this
document).
The GE Morris facility in Illinois,
which is the only spent fuel pool
licensed under 10 CFR part 72 as an
ISFSI would not need to comply with
this proposed rule because it is
excluded by the rule applicability
described in proposed § 50.155(a). The
NRC considered including the GE
Morris facility within the scope of this
proposed rule but found that the age
(and corresponding low decay heat
load) of the fuel in the facility made it
unnecessary. The GE Morris facility also
would meet this proposed rule’s
sunsetting criteria. While this proposed
rule would leave in force the
requirements of the current
§ 50.54(hh)(2), those requirements are
not applicable to GE Morris due to its
status as a non-10 CFR part 50 licensee.
In the course of the development and
implementation of the guidance and
strategies required by the current
§ 50.54(hh)(2), the NRC evaluated
whether additional mitigation strategies
were warranted at GE Morris and
concluded that no mitigating strategies
were warranted beyond existing
measures, due to the extended decay
time since the last criticality of the fuel
stored there, the resulting low decay
heat levels, and the assessment that a
gravity drain of the GE Morris SFP is not
possible due to the low permeability of
the surrounding rock and the high level
of upper strata groundwater.
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This proposed rule would establish a
‘‘sunsetting’’ or phased removal of
requirements for licensees of
decommissioning power reactors.
Licensees would not need to meet
requirements that relate to the reactor
source term and associated fission
product barriers once all fuel has been
permanently removed from the reactor
vessel and placed in the spent fuel pool.
This proposed rule would require
secondary containment for reactor
designs that employ this feature as a
fission product barrier for the spent fuel
pool source term.
Once the NRC has docketed a
licensee’s § 50.82(a)(1) or § 52.110(a)
certification of permanent removal of
fuel from the reactor vessel and
certification of permanent cessation of
operations, that licensee would not be
subject to requirements to have
mitigation strategies and guidelines for
maintaining or restoring core cooling
and containment capabilities. As
discussed previously, these proposed
requirements are based on Order EA–
12–049. The licensees for the Kewaunee
Power Station, Crystal River Unit 3
Nuclear Generating Plant, San Onofre
Nuclear Generating Station, Units 2 and
3, and Vermont Yankee Nuclear Power
Station, submitted § 50.82(a)(1)
certifications after issuance of Order
EA–12–049; the NRC has rescinded
Order EA–12–049 to this group of NPP
licensees (Shutdown NPP Group). These
rescissions were based on the NRC’s
conclusion that the lack of fuel in the
licensee’s reactor core and the absence
of challenges to the containment
rendered unnecessary the development
of guidance and strategies to maintain or
restore core cooling and containment
capabilities. Consistent with these
rescissions, the NRC proposes to relieve
licensees in decommissioning from the
requirement to comply with proposed
requirements to have mitigation
strategies and guidelines to maintain or
restore core cooling and containment
capabilities. Moreover, these licensees
would not need to comply with any of
the other requirements in this proposed
rule that support compliance with the
proposed requirement to have
mitigation strategies and guidelines for
maintaining or restoring core cooling
and containment capabilities.
This proposed rule treats the EDMG
requirements in a manner similar to the
requirements for FSGs. For a licensee
who has § 50.82(a)(1) or § 52.110(a)
certifications docketed at the NRC, the
lack of fuel in their reactor core and the
absence of challenges to the
containment would render unnecessary
EDMGs for core cooling and
containment capabilities. This licensee
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70619
would not need to comply with any
requirements in this proposed rule
associated with core cooling or
containment capabilities; rather, the
licensee would be required to comply
with the proposed requirement to have
EDMGs as based on the presence of fuel
in the spent fuel pool.
Once the NRC has docketed a
licensee’s § 50.82(a)(1) or § 52.110(a)
certifications, that licensee would not
need to comply with the requirement
proposed by this rule that the
equipment relied on for the mitigation
strategies include reliable means to
remotely monitor wide-range spent fuel
pool levels to support effective
prioritization of event mitigation and
recovery actions. This proposed
requirement is based on the
requirements in Order EA–12–051. This
order requires a reliable means of
remotely monitoring wide-range SFP
levels to support effective prioritization
of event mitigation and recovery actions
in the event of a beyond-design-basis
external event with the potential to
challenge both the reactor and SFP.
The NRC has also rescinded Order
EA–12–051 for the Shutdown NPP
Group mentioned previously. These
rescissions were based, in part, on the
NRC’s conclusions that once a licensee
certifies the permanent removal of the
fuel from its reactor vessel, the safety of
the fuel in the SFP becomes the primary
safety function for site personnel. In the
event of a challenge to the safety of fuel
stored in the SFP, decision-makers
would not have to prioritize actions and
the focus of the staff would be the SFP
condition. Therefore, once fuel is
permanently removed from the reactor
vessel, the basis for the Order EA–12–
051 would no longer apply. Consistent
with the NRC order rescissions, the NRC
proposes to no longer require licensees
in decommissioning to have a reliable
means to remotely monitor wide-range
spent fuel pool levels to support
effective prioritization of event
mitigation and recovery actions in the
event of a beyond-design-basis external
event with the potential to challenge
both the reactor and SFP.
Once the NRC has docketed a
licensee’s § 50.82(a)(1) or § 52.110(a)
certifications, that licensee would not
need to comply with the requirements
in proposed Section VII,
‘‘Communications and Staffing
Requirements for the Mitigation of
Beyond Design Basis Events,’’ in 10 CFR
part 50, appendix E. These proposed
requirements are based on the March 12,
2012, § 50.54(f) letters that requested
operating power reactor licensees to
perform, among other things, emergency
preparedness communication and
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staffing evaluations for prolonged loss of
power events consistent with NTTF
recommendation 9.3. Once the licensees
for the Shutdown NPP Group were no
longer operating power reactors, they
informed the NRC that they would no
longer proceed with implementing
recommendation 9.3. In response to the
filings, the NRC determined that, for
beyond-design-basis external events
challenging the safety of the spent fuel
at the Shutdown NPP Group:
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recovery and mitigation actions could be
completed over a long period of time due to
the slow progression of any accident as a
result of the very low decay heat levels
present in the pool within a few months
following permanent shutdown of the
reactor. Thus, spent fuel pool beyond design
basis accident scenarios at decommissioning
reactor sites do not require the enhanced
communication and staffing that may be
necessary for the reactor-centered events the
50.54(f) letter addresses.4
Order EA–12–049 also required power
reactor licensees to have certain spent
fuel pool cooling capabilities. In the
rescission letters to the licensees for the
Shutdown NPP Group, the NRC
determined that, due to the passage of
time, the fuel’s low decay heat and the
long time to boil off the water inventory
in the spent fuel pool obviated the need
for the Shutdown NPP Group licensees
to have guidance and strategies
necessary for compliance with Order
EA–12–049. The rescission of Order
EA–12–049 for those licensees
eliminated the requirement for them to
comply with the Order’s requirements
concerning beyond-design-basis event
strategies and guidelines for spent fuel
pool cooling capabilities. Consistent
with the basis for the Order rescissions,
licensees in decommissioning could be
relieved from the proposed
requirements concerning beyonddesign-basis event strategies and
guidelines for spent fuel pool cooling
capabilities and any related
requirements. These licensees would
have to perform and retain an analysis
demonstrating that sufficient time has
passed since the fuel within the spent
fuel pool was last irradiated such that
the fuel’s low decay heat and boil-off
period provide sufficient time for the
licensee to obtain offsite resources to
sustain the spent fuel pool cooling
function indefinitely. Licensees could
make use of the equipment in place for
EDMGs should that equipment be
available, recognizing that the
4 See the ‘‘Availability of Documents’’ section of
this document for the NRC letters to the licensees
for Kewaunee Power Station, Crystal River Unit 3
Nuclear Generating Plant, San Onofre Nuclear
Generating Station, Units 2 and 3, and Vermont
Yankee Nuclear Power Station.
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protection for that equipment is against
the hazards posed by events that result
in losses of large areas of the plant due
to fires or explosions rather than
beyond-design-basis external events
resulting from natural phenomena. If the
EDMG equipment is not available, the
offsite resources would be used by the
licensee for only onsite emergency
response (i.e., spent fuel pool cooling).
This proposed amendment would not
impact any commitments licensees have
made regarding exemptions from offsite
emergency planning requirements,
which consider a beyond-design-basis
event that could result in a zirconium
cladding fire due to a loss of SFP
inventory and do not consider offsite
resources in mitigation strategies.
The NRC proposes to maintain the
EDMGs requirement, because an event
for which EDMGs would be required is
not based on the condition of the fuel,
but may instead result from aircraft
impact and a beyond-design-basis
security event which could introduce
kinetic energy into the spent fuel pool
independent from the decay heat of the
fuel. These types of events and their
potential consequences were considered
as a part of the rulemaking dated March
7, 2009, on Power Reactor Security
Requirements (74 FR 13926). In the
course of that rulemaking, the NRC took
into account stakeholder input and
determined that it would be
inappropriate to apply the EDMG
requirements to permanently shutdown
and defueled reactors where the fuel
was removed from the site or moved to
an ISFSI. However the resulting rule
was written to remove the EDMG
requirements once the certifications of
permanent cessation of operations and
removal of fuel from the reactor vessel
were submitted rather than upon
removal of fuel from the SFP. The NRC
proposes to correct this error from the
2009 final rule in this proposed rule as
explained in the ‘‘EDMGs’’ portion of
this section.
The NRC proposes to exclude from
proposed § 50.155, the licensee for
Millstone Power Station Unit 1,
Dominion Nuclear Connecticut, Inc.
Dominion Nuclear Connecticut, Inc. is
also the licensee for Millstone Power
Station Units 2 and 3, but this exclusion
would apply to Dominion Nuclear
Connecticut, Inc. in its capacity as
licensee for only Unit 1, which is not
operating but has irradiated fuel in its
spent fuel pool and satisfies the
proposed criteria for not having to
comply with this proposed rule except
for the EDMG requirements. In the
course of the development and
implementation of the guidance and
strategies required by current
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§ 50.54(hh)(2), the NRC evaluated
whether additional mitigation strategies
were warranted at Millstone Power
Station Unit 1 and concluded that no
mitigating strategies were warranted
beyond existing measures, principally
due to the extended decay time since
the last criticality there on November 4,
1995, and the resulting low decay heat
levels allowing sufficient time for the
use of existing strategies augmented by
mitigation strategies existing in 2005.
The exclusion for Millstone Power
Station Unit 1 in this proposed rule is
based upon that conclusion, recognizing
that additional mitigating capabilities
will be present due to the
implementation of the § 50.54(hh)(2)
strategies at the collocated Millstone
Power Station Units 2 and 3.
In contrast to Millstone Power Station
Unit 1, the Shutdown NPP Group
licensees were issued license conditions
for the mitigating strategies
corresponding to the § 50.54(hh)(2)
strategies. These license conditions are
condition 2.C.(10) to Renewed
Operating License No. DPR–43 for
Kewaunee Power Station, condition
2.C.(14) to Facility Operating License
No. DPR–72 for Crystal River Unit 3
Nuclear Generating Plant, condition
2.C.(26) to Facility Operating License
NPF–10 for San Onofre Nuclear
Generating Station Unit 2, condition
2.C.(27) to Facility Operating License
NPF–15 for San Onofre Nuclear
Generating Station Unit 3, and
condition 3.N to Renewed Operating
License No. DPR–28 for Vermont
Yankee Nuclear Power Station. Those
licensees and future power reactor
licensees that enter decommissioning
would have the burden to show that
operation in a decommissioning status
with irradiated fuel in the spent fuel
pool without the EDMG license
condition or the proposed requirement
to comply with the proposed EDMG
requirement would provide adequate
protection of public health and safety.
Integrated Response Capability
Each applicant or licensee subject to
the proposed requirements would be
required to develop, implement, and
maintain an integrated response
capability that includes FSGs, EDMGs,
EOPs, sufficient staffing, and a
supporting organizational structure with
defined roles, responsibilities, and
authorities for directing and performing
these strategies, guidelines, and
procedures.
As discussed in the NTTF Report,
EOPs have long been part of the NRC’s
safety requirements. The NRC
regulations address them through the
quality assurance requirements of
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criterion V and criterion VI in appendix
B to 10 CFR part 50, and in the
administrative controls section of the
technical specifications for each plant.
Following the accident at TMI Unit 2,
EOPs were upgraded to address human
factors considerations in order to
improve human reliability including the
operator’s ability to mitigate the
consequences of a broad range of
initiating events and subsequent
multiple failures without the need to
diagnose specific events. In other words,
EOPs were modified from their previous
event-driven nature to be symptombased. Numerous subsequent regulatory
guides (RGs) and technical reports (e.g.,
NUREG–0660, NUREG–0737, and
NUREG–0711) also address EOPs. In
addition, the EOPs are the subject of a
national consensus standard (American
National Standards Institute/American
Nuclear Society 3.2–2012,
‘‘Administrative Controls and Quality
Assurance for the Operational Phase of
Nuclear Power Plants’’). The subject
matter for the initial and requalification
training, written exam, and operating
test for reactor operators and senior
reactor operators also includes the
EOPs. While implementing EOPs, the
event command and control functions
remain in the control room under the
direction of the senior licensed operator
on shift.
The nuclear industry developed
EDMGs following the terrorist events of
September 11, 2001, in response to
security advisories, orders, and license
conditions issued by the NRC that
required licensees to develop and
implement guidance and strategies
intended to maintain or restore core
cooling and containment and spent fuel
pool cooling capabilities under the
circumstances associated with the loss
of large areas of the plant due to fire or
explosion. The EDMGs further extend
the range of initiating events and plant
damage states for which strategies and
guidelines are available for use by
operators to include the loss of large
areas of the plant and a subsequent
impairment of the operability and
functionality of structures, systems and
components that are within that area.
NEI 06–12, ‘‘B.5.b Phase 2&3 Submittal
Guideline,’’ Revision 2, December 2006
(the NRC-endorsed guidance for the
requirements associated with EDMGs)
provides appropriate coordination of the
EDMGs with the voluntarily maintained
SAMGs through its guidance that the
EDMGs ‘‘must be interfaced with
existing SAMGs so that potential
competing considerations associated
with implementing these and other
strategies are appropriately addressed.’’
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Based upon these considerations, the
NTTF recommended that the NRC
require licensees to further integrate
EOPs, SAMGs and EDMGs, including a
clarification of transition points,
command and control, decision making,
and rigorous training that includes
conditions that are as close to real
accident conditions as feasible.
Subsequent to issuance of the NTTF
Report, the range of initiating events
and plant damage states for which
strategies and guidelines are available
for use by operators was further
extended through the development of
mitigating strategies for beyond-designbasis external events in response to
Order EA–12–049. The development
and implementation of this set of
strategies and guidelines was
accomplished with the knowledge of the
existence of the other NTTF
recommendations and took them into
account to the extent practical. In order
to provide better integration with the
EOPs, the resulting strategies and
guidelines (FSGs) leave the designation
of command and control and decisionmaking functions within the EOPs or
SAMGs, as maintained under the
voluntary industry initiative, as
appropriate. As recommended in the
NTTF Report, this proposed rule would
require that EDMGs and FSGs be
integrated with EOPs, consistent with
the expectation that EOPs remain the
central element of a licensee’s initial
response capability.
In establishing a requirement for a
response capability that encompasses
the use of EOPs, EDMGs, and FSGs, the
NRC considered the fact that these
strategies, guidelines and procedures
were, and are currently being,
developed at separate times over a
period of several decades and that the
associated efforts have been focused on
responding to different types of
initiating events and plant damage
states. As a result, these strategies,
guidelines and procedures may not
properly reflect consideration of the
interfaces (e.g., procedure transitions),
dependencies (e.g., reliance on common
systems or resources) and interactions
(e.g., alignment of response strategies)
among strategies, guidelines and
procedures that may be used in
combination, either consecutively or
concurrently, to mitigate a design-basis
or beyond-design-basis event.
Additionally, the NRC considered that
these strategies, guidelines and
procedures are not used by a single
licensee organizational unit but will
often require coordination and transfer
of responsibilities amongst licensee
organizational units. For example, the
EDMGs may be implemented under
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conditions of loss of the main control
room and therefore initiated and
directed by knowledgeable and
available site personnel until
coordination and augmentation efforts
enable transition to a more stable
command and control structure. The
mitigation strategies for extreme
external events, though initiated by the
main control room complement of
licensed operators, may require
coordination with and augmentation by
offsite organizations. Further, and as
noted previously, there are potential
accident scenarios in which a licensee
might employ strategies from more than
one of these strategies, guidelines and
procedures during its response to an
accident. One plausible sequence is for
an initial response to be under the
EOPs, supplemented by actions under
the FSGs, and ultimately transition to
actions under the SAMGs, which are
implemented under a voluntary
initiative. Such an accident progression
would engage and require the
coordination of multiple licensee
organizational units.
In light of the preceding
considerations, this proposed rule
would require that the mitigating
strategies, guidelines and procedures,
staffing, and supporting organizational
structure be developed, implemented,
and maintained such that they function
as an ‘‘integrated’’ response capability.
The intent is to ensure that applicants
and licensees establish and maintain a
functional capability to produce a
coordinated and logical response under
a wide range of accident conditions. The
intent is not to require physical
integration (e.g., organizations need not
be merged and strategies, guidelines and
procedures need not be combined), but
rather to require a functional integration
of the elements of the response
capability. To achieve this functional
integration, the NRC expects that
applicants and licensees would have
addressed the interfaces, dependencies,
and interactions among the elements of
their response capability such that
elements work together to support
effective performance under the full
range of accident conditions. For
example, functional integration of the
strategies, guidelines and procedures
would ensure that transition points are
explicitly identified and conflicts
between strategies are eliminated to the
extent practical. Functional integration
of response organizations would ensure
that organizations working together to
use these strategies, guidelines, and
procedures (e.g., to coordinate actions or
provide support) have clearly defined
lines of communication between the
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organizations, as well as clearly defined
authorities and responsibilities relative
to each other, such that there are no
gaps or conflicts.
The proposed requirements for FSGs
would make generically-applicable
requirements previously imposed on
licensees by Order EA–12–049, for
Virgil C. Summer Nuclear Station Units
2 and 3 by license condition as
described in Memorandum and Order
CLI–12–09,5 and for Enrico Fermi
Nuclear Plant Unit 3, License No. NPF–
95, by license condition 2.D.(12)(g).
These proposed requirements would
provide additional defense-in-depth
measures that increase the capability of
nuclear power plant licensees to
mitigate consequences of beyonddesign-basis external events. Consistent
with Order EA–12–049 and associated
license conditions, these proposed
provisions would be made genericallyapplicable in recognition that beyonddesign-basis events have an associated
significant uncertainty, and that the
NRC concluded additional measures
were warranted in light of this
uncertainty.
The proposed FSG strategies and
guideline requirements are intended to
mitigate consequences of beyonddesign-basis external events from
natural phenomenon that result in an
ELAP concurrent with either a loss of
normal access to the ultimate heat sink,
or for passive reactor designs, a loss of
normal access to the normal heat sink.
Recognizing that beyond-design-basis
external events are fundamentally
unbounded, and that these events can
result in a multitude of damage states
and associated accident conditions, a
significant regulatory challenge is
developing bounded requirements that
meaningfully address the regulatory
issue. From a practical standpoint,
development of mitigation strategies
requires that there be some definition
(or boundary conditions established) for
an onsite damage state for which the
strategies would then address and
thereby provide an additional capability
to mitigate beyond-design-basis external
event conditions that might occur. The
damage state should ideally be
representative of a large number of
potential damage states that might occur
as a result of extreme external events,
and it should present an immediate
challenge to the key safety functions, so
that the resultant strategies actually
improve safety. The assumed damage
state for this proposed rule is the same
5 Summer, CLI–12–09, 75 NRC at 440, and the
V.C. Summer Unit 2 license, License No. NPF–93,
Condition 2.D.(13) and V.C. Summer Unit 3 license,
License No. NPF–94, Condition 2.D.(13).
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as that assumed to implement the
requirements of EA–12–049, attachment
2 for currently operating power reactors:
An ELAP condition concurrent with
loss of normal access to the ultimate
heat sink (LUHS). This assumed damage
state is effective at immediately
challenging the key safety functions
following a beyond-design-basis
external event (i.e., core cooling,
containment and spent fuel pool
cooling). Requiring strategies to
maintain or restore these key functions
under such circumstances would result
in an additional mitigation capability
consistent with the Commission’s
objective when it issued Order EA–12–
049.
This proposed rule would not be
prescriptive in terms of the specific set
of initial and boundary conditions
assumed for the ELAP and LUHS
condition, recognizing that the damage
state for current operating reactors,
defined in more detail in draft
regulatory guidance for this proposed
rule (DG)-1301, ‘‘Flexible Mitigation
Strategies for Beyond-Design-Basis
Events,’’ reflects current operating
power reactor designs and the reliance
of those designs on ac power, while the
assumed damage state for a future
design may be different depending upon
the design features. Specifically, this
damage state was implemented through
the assumption of the ELAP to the
onsite emergency ac buses, but did
allow for ac power from the inverters to
be assumed available in order to
establish event sequence and the
associated times for when mitigation
actions would be assumed to be
required. To address the Order EA–12–
049 requirement for an actual loss of all
ac power, including ac power from the
batteries (through inverters),
contingencies are included in the
mitigation strategies to enable actions to
be taken under those circumstances
(e.g., sending operators to immediately
take manual control over a non acpowered core cooling pump). As such,
this proposed provision is meant to
make generically-applicable the current
implementation under EA–12–049 (i.e.,
there is no intent to either relax or
impose new requirements), and be
performance-based to allow some
flexibility for future designs. As an
example, some reactor designs (e.g.,
Westinghouse AP1000 and General
Electric Economic Simplified Boiling
Water Reactor (ESBWR)) use passive
safety systems to meet NRC
requirements for maintaining key safety
functions. The inherent design of those
passive safety systems makes certain
assumptions, such as loss of access to
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the ultimate heat sink, not credible.
Accordingly, the assumed condition for
the FSG requirements for passive
reactors is the loss of normal access to
the normal heat sink, discussed further
in this section. Nevertheless, in this
proposed rule the NRC is requiring that
the strategies and guidelines be capable
of implementation during a loss of all ac
power.
Regarding the assumed LUHS for
combined licenses or applications
referencing the AP1000 or the ESBWR
designs, the assumption was modified
to be a loss of normal access to the
normal heat sink (see attachment 3 to
Order EA–12–049, Summer, CLI–12–09,
75 NRC at 440, the V.C. Summer Unit
2 license, License No. NPF–93,
Condition 2.D.(13), the V.C. Summer
Unit 3 license, License No. NPF–94,
Condition 2.D.(13) and Enrico Fermi
Nuclear Plant Unit 3 License, License
No. NPF–95, Condition 2.D.(12)(g)).
This modified language reflects the
passive design features of the AP1000
and the ESBWR that provide core
cooling, containment, and spent fuel
cooling capabilities for 72 hours without
reliance on ac power. These features do
not rely on access to any external water
sources for the first 72 hours because
the containment vessel and the passive
containment cooling system serve as the
safety-related ultimate heat sink for the
AP1000 design and the isolation
condenser system serves as the safetyrelated ultimate heat sink for the
ESBWR design.
As discussed previously, the range of
beyond-design-basis external events is
unbounded. These proposed provisions
are not intended, and should not be
understood to mean, that the mitigation
strategies can adequately address all
postulated beyond-design-basis external
events. It is always possible to postulate
a more severe event that causes greater
damage and for which the mitigation
strategies may not be able to maintain or
restore the functional capabilities (e.g.,
meteorite impact). Instead, the proposed
requirements provide additional
mitigation capability in light of
uncertainties associated with external
events, consistent with the NRC’s
regulatory objective when it issued
Order EA–12–049.
This proposed rule would require that
the FSGs be capable of being
implemented site-wide. This recognizes
that severe external events are likely to
impact the entire reactor site, and for
multi-unit sites, damage all the power
reactor units on the site. This
requirement means that there needs to
be sufficient equipment and supporting
staff to enable the core cooling,
containment, and spent fuel pool
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cooling functions to be maintained or
restored for all the power reactor units
on the site. This is a distinguishing
characteristic of this set of mitigating
strategies from those that currently exist
for § 50.54(hh)(2), for which the damage
state was a more limited, albeit large
area of a single plant, reflecting the
hazards for which that set of strategies
was developed.
The NRC gave consideration to
whether there should be changes made
to § 50.63 to link those requirements
with this proposed rule. This
consideration stemmed from
recommendation 4.1 of the NTTF Report
to ‘‘initiate rulemaking to revise 10 CFR
50.63’’ and the understanding that this
proposed rule could result in an
increased station blackout coping
capability, in addition to the regulatory
objective of the proposed provisions,
which is to provide additional beyonddesign-basis external event mitigation.
Because of the substantive differences
between the requirements of § 50.63 for
licensees to be able to withstand and
recover from a station blackout and the
proposed requirements, the NRC
determined that such a linkage was not
necessary and could lead to regulatory
confusion.
The principal regulatory objective of
§ 50.63 was to establish station blackout
coping durations for a specific scenario
(i.e., loss-of-offsite power coincident
with a failure of both trains of
emergency onsite ac power, typically,
the failure of multiple emergency diesel
generators). In meeting this regulatory
objective, the NRC recognized that there
would be safety benefits accrued
through the provision of an alternate ac
source diverse from the emergency
diesel generators and therefore defined
such a source in § 50.2. In furtherance
of this alternative means to comply with
§ 50.63, the NRC also defined the event
a licensee must withstand and recover
from as a station blackout rather than a
loss of all ac power. A station blackout
allows for continued availability of ac
power to buses fed by station batteries
through inverters or by alternate ac
sources. This proposed rule would
provide an additional capability to
mitigate beyond-design-basis external
events. Because the condition assumed
for the mitigation strategies to establish
the additional mitigation capability
includes an ELAP, which is more
conservative than a station blackout as
defined in § 50.2, there can be a direct
relationship between the two different
sets of requirements with regard to the
actual implementation at the facility.
Specifically, implementation of the
proposed mitigation strategies links into
the station blackout procedures (e.g., the
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applicable strategies would be
implemented to maintain or restore the
key safety functions when the EOPs
reach a ‘‘response not obtained’’
juncture).6
Step-by-step procedures are not
necessary for many aspects of the
proposed mitigating strategies and
guidelines. Rather, the strategies and
guidelines should be flexible, and
therefore enable plant personnel to
adapt them to the conditions that result
from the beyond-design-basis external
event. The proposed provisions
typically would result in strategies and
guidelines that use both installed and
portable equipment, instead of only
relying on installed ac power sources
(with the exception of protected battery
power) to maintain or restore core
cooling, containment, and spent fuel
pool cooling capabilities. By using
equipment that is separate from the
normal installed ac-powered equipment,
the strategies and guidelines have a
diverse attribute. By having available
multiple sets of portable equipment that
can be deployed and used in multiple
ways depending on the circumstances of
the event, operators are able to
implement strategies and guidelines that
are flexible and adaptable.
The proposed mitigation strategies
requirements are both performancebased and functionally-based. The
proposed performance-based
requirements recognize that the new
requirements would provide most
benefit to future reactors whose designs
could differ significantly from current
power reactor designs and as such, use
of more prescriptive requirements could
be problematic and create unnecessary
regulatory impact and need for
exemptions. Use of functionally-based
requirements results from the need to
have requirements that can address a
wide range of damage states that might
exist following beyond-design-basis
external events. Maintaining or restoring
three key functions (core cooling,
containment’ and spent fuel pool
cooling) supports maintenance of the
fission product barriers (i.e., fuel clad,
reactor coolant pressure boundary, and
containment) and results in an effective
means to mitigate these events, while
6 One of the formats for symptom-based EOPs that
are used in the operating power reactors has the
operators take an action and verify that the system
responds to the action in a manner that confirms
that the action was effective. For example, a step
in an EOP could be to open a valve in order to allow
cooling water flow and the verification would be
obtained by confirming there are indications that
flow has commenced such as lowering temperature
of the system being cooled. If those indications are
not obtained, the procedure would provide
instructions on the next step to accomplish in a
separate column labeled ‘‘response not obtained.’’
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remaining flexible such that the
strategies and guidelines can be adapted
to the damage state that occurs.
Functionally-based requirements also
result in strategies that align well with
the symptom-based procedures used by
power reactors to respond to accidents.
Accordingly, Order EA–12–049
contained requirements for a threephased approach for current operating
reactors. This proposed rule does not
specify a number of phases; instead, the
NRC is proposing higher level,
performance-based requirements
consistent with this discussion.
The NRC gave consideration to
incorporating into this proposed rule a
requirement that licensees be capable of
implementing the strategies and
guidelines ‘‘whenever there is irradiated
fuel in the reactor vessel or spent fuel
pool.’’ This provision would have been
a means of making genericallyapplicable the requirement from Order
EA–12–049 that licensees be capable of
implementing the strategies and
guidelines ‘‘in all modes.’’ The NRC
considers the terminology ‘‘whenever
there is irradiated fuel in the reactor
vessel or spent fuel pool’’ would be a
better means to address the Order
requirement since the phrase does not
use technical specification type
language (i.e., modes), which would not
be in effect when a licensee completely
offloads the fuel from the reactor vessel
into the spent fuel pool during an
outage. The NRC concluded that the use
of the phrases ‘‘whenever there is
irradiated fuel in the reactor vessel or
spent fuel pool’’ or ‘‘in all modes’’ is not
necessary because the proposed
applicability provisions would ensure
that licensees would be required to have
mitigation strategies for beyond-designbasis external events for the various
configurations that can exist for the
reactor and spent fuel pools throughout
the operational, refueling and
decommissioning phases.
The mitigation strategies and
guidelines implemented under NRC
Order EA–12–049 assume a demanding
condition that maximizes decay heat
that would need to be removed from the
reactor core and spent fuel pool source
terms on site. This implementation
results in a more restrictive timeline
(i.e., mitigation actions required earlier
following the event to take action to
maintain or restore cooling to these
source terms) and a greater resulting
additional capability. These assumed atpower conditions are 100 days at 100
percent power prior to the event for the
reactor core as was used for § 50.63.
This assumption establishes a
conservative decay heat for the reactor
source term. The assumed spent fuel
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pool conditions include the design basis
heat load for the spent fuel pool,
typically a full core offload following a
refueling outage. This establishes a
conservative heat load for the spent fuel
pool. The NRC recognizes that, as a
practical reality, these conditions would
not exist simultaneously. The NRC
considers the development of timelines
for the proposed mitigating strategies
using the maximum heat load for either
the reactor core or the spent fuel pool
to be appropriate. While establishing the
capability to mitigate the maximum heat
load for both simultaneously would be
compliant with the proposed
requirements, it would not be necessary.
The NRC recognizes the difficulty of
developing engineered strategies for the
extraordinarily large number of possible
plant and equipment configurations that
might exist under shutdown conditions
(i.e., at shutdown when equipment may
be removed from service, when there is
ongoing maintenance and repairs or
refueling operations, or modifications
are being implemented). The proposed
requirements mean that licensees
should be cognizant of such
configurations, equipment availability,
and decay heat states that could present
greater challenges under these
conditions, and design mitigation
strategies that can be implemented
under such circumstances.
The NRC considered requiring the
strategies to be developed considering
the need to plan for delays in the receipt
of offsite resources as a result of damage
to the transportation infrastructure.
While severe events could damage local
infrastructure, and could create
challenges with regard to the delivery of
offsite resources, the NRC concluded
that having this level of specificity in
the proposed provisions would not be
necessary. Instead, this proposed rule
contains provisions that are more
performance-based, requiring continued
maintenance or restoration of the
functional capabilities until acquisition
of offsite assistance and resources.
Potential delays and other challenges
presented by extreme events that affect
acquisition and use of offsite resources
would be addressed by licensee
programs that implement the proposed
provisions.
Order EA–12–049 included a
requirement that licensees develop
guidance and strategies to obtain
‘‘sufficient offsite resources to sustain
[the functions of core cooling,
containment, and spent fuel pool
cooling] indefinitely.’’ The NRC
considered using this language in this
proposed rule, but concluded that this
would be better phrased as
‘‘indefinitely, or until sufficient site
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functional capabilities can be
maintained without the need for the
mitigation strategies.’’ The NRC
concluded that this phrase better
communicates the existence of a
transition from the use of the mitigating
strategies to recovery operations.
The NRC recognizes that the use of
the proposed mitigating strategies
would potentially require departure
from a license condition or a technical
specification (contained in a license
issued under 10 CFR part 50 or 52) and
could be considered a proceduralization
of the allowance provided under
§ 50.54(x). Given that the initiation of
the use of these strategies may be
included in emergency operating
procedures or other procedures, which
might be considered procedures
described in the final safety analysis
report (as updated), there is an
interaction with the provisions of
§ 50.59(c)(1) regarding the need to
obtain a license amendment in order to
make the necessary change to those
procedures. The NRC considered
including provisions in this proposed
rule specifically to allow departures
from license conditions or technical
specifications in order to clarify this
situation, but found these provisions
unnecessary. For holders of operating
licenses under 10 CFR part 50 and
combined licenses under 10 CFR part 52
that were subject to Order EA–12–049,
the provisions of that Order provided
more specific criteria for making the
necessary changes than § 50.59, making
that section inapplicable as set forth in
§ 50.59(c)(4). Those criteria included the
provision of submitting an overall
integrated plan to the NRC for review.
Similar criteria were included in license
conditions for the combined licenses for
Virgil C. Summer Nuclear Station, Units
2 and 3, and Enrico Fermi Nuclear Plant
Unit 3.
EDMGs
The NRC proposes to move the
EDMGs requirement currently in
§ 50.54(hh)(2) to a new mitigation of
beyond-design-basis events section of 10
CFR part 50. In addition to moving the
text, the NRC proposes to make a few
editorial changes. The wording used to
describe these requirements has evolved
from ‘‘guidance and strategies,’’ in
Interim Compensatory Measures Order
EA–02–026, dated February 25, 2002, to
‘‘strategies,’’ in the corresponding
license conditions, to ‘‘guidance and
strategies,’’ in § 50.54(hh)(2), to its
proposed form ‘‘strategies and
guidelines.’’ The word ‘‘guidelines’’ was
chosen rather than ‘‘guidance’’ to better
reflect the nature of the instructions that
could be developed as appropriate by a
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licensee and to avoid confusion with the
term ‘‘regulatory guidance.’’ The word
‘‘strategies’’ is used in this proposed
rule to reflect its meaning, ‘‘plans of
action.’’ The resulting plans of action
could include plant procedures,
methods, or other guideline documents,
as deemed appropriate by the licensee
during the development of these
strategies. These plans of action would
also include the arrangements made
with offsite responders for support
during an actual event. No substantive
change to the requirements is intended
by this proposed change in the wording.
Applicability of the requirements of
§ 50.54(hh)(2) is currently governed by
§ 50.54(hh)(3), which makes these
requirements inapplicable following the
submittal of the certifications required
under § 50.82(a) or § 52.110(a)(1). As
discussed in the statement of
considerations for the Power Reactor
Security Rulemaking (74 FR 13926), the
NRC believes that it would be
inappropriate for the requirements for
EDMGs to apply to a permanently
shutdown, defueled reactor, where the
fuel was removed from the site or
moved to an ISFSI. The NRC proposes
to require EDMGs for a licensee with
permanently shutdown defueled
reactors, but with irradiated fuel still in
its spent fuel pool, because the licensee
must be able to implement effective
mitigation measures for large fires and
explosions that could impact the spent
fuel pool while it contains irradiated
fuel. The difference between this
proposed rule and § 50.54(hh)(3) would
correct the wording of the latter
provision to implement the sunsetting
of the associated requirement as was
intended by the Commission in 2009.
This change would not constitute
backfitting for currently operating
reactors because the proposed change
concerns decommissioning reactors.
The proposed change would not
constitute backfitting for currently
decommissioning reactors because the
EDMGs are also required by the
licensees’ license conditions that were
made generically applicable through the
Power Reactor Security Rulemaking and
remain in effect.
Integration With EOPs
In developing a proposed requirement
for the integration of FSGs and EDMGs
with the EOPs, the NRC considered
their differences in content and the
standards for usage applied to them.
The EOPs are a specific and prescribed
set of instructions implemented in
accordance with exacting standards for
usage and adherence (e.g., step-by-step
sequential performance, concurrent
execution of multiple sections) that
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operators and plant staff are required to
follow when performing a specific task
or addressing plant conditions. When
implementing procedures, each step is
to be performed as prescribed, with rare
exceptions. The strategies and
guidelines that would be required differ
from EOPs primarily in terms of the
level of detail to which they are written
and expectations regarding usage. These
strategies and guidelines may be a less
prescriptive set of instructions not
subject to the same constraints imposed
by standards of usage for procedure
implementation (e.g., may not be
followed in a step-by-step manner). This
is because of: (1) The large number of
possible event initiators, plant
configurations, and sequences; and (2)
the high degree of uncertainties in event
progression and consequences. The
strategies and guidelines can take the
form of high level plans that identify
and describe potential, previously
evaluated, success paths for addressing
specific conditions such as loss of core
cooling. As a result, strategies and
guidelines provide operators and plant
staff the information and latitude to
respond as necessary to unpredictable
and dynamic situations, allowing them
to adapt to the actual conditions and
damage states without the burden of
detailed procedures and the challenge of
determining which procedure may be
applicable and effective under the
uncertain conditions of a beyond design
basis accident.
Given these differences in content and
standards for usage, the intent of this
proposed rule is not to require
conformance of the strategies and
guidelines to the level of detail and
standards of usage for EOPs, or
consolidation of the strategies,
guidelines and procedures into a single
set of instructions, but rather, as
previously described, to require
functional integration of strategies and
guidelines with the EOPs. The objective
is for the strategies, procedures, and
guidelines to retain or employ the
characteristics that support their
effective use under the range of
conditions to which they are each
intended to apply while ensuring that
the strategies and guidelines, in
conjunction with the EOPs, constitute a
useable and cohesive set of instructions
for mitigating the consequences of a
wide range of initiating events and plant
damage states. To achieve this
functional integration, the NRC expects
that applicants and licensees would
have addressed the interfaces,
dependencies, and interactions among
the strategies and guidelines that would
be required under this proposed rule
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and the EOPs, such that they can be
implemented in concert with each
other, as necessary, to effectively use
available plant resources and direct a
logical and coordinated response to a
wide range of accident conditions.
In keeping with the basis for a
functional integration of the strategies
and guidelines with EOPs, this
proposed rule would require that the
FSGs and EDMGs be integrated ‘‘with
the Emergency Operating Procedures
(EOPs).’’ This proposed language is
intended to communicate the NRC’s
expectation that the EOPs retain their
role as the primary means of directing
emergency operations and that the
strategies and guidelines that would be
required under this proposed rule
would be integrated with EOPs to
support their implementation or
augment them where their
implementation is not successful in
preventing significant fuel damage.
The NRC considered establishing
specific criteria for the integration of the
strategies and guidelines with EOPs but
opted to specify only a high level
requirement to allow applicants and
licensees flexibility in the means by
which they achieve the functional
integration described previously.
Approaches for achieving functional
integration could include the following:
1. Strategies, guidelines, and
procedures have clearly defined
transitions (e.g., entry and exit
conditions with distinct pointers) from
one strategy, guideline, or procedure to
another.
2. Individuals are cued by the
document or trained to know when
transitions between the strategies,
guidelines, and procedures result in
corresponding changes in the associated
standards for usage (e.g., when
transitioning from EOPs to the
voluntarily maintained SAMGs, the
operator is able to recognize the
transition from a step-by-step procedure
to a flexible guideline set where it is
permissible to deviate from the order or
method of accomplishing the steps).
3. Licensees establish expectations
(e.g., through standards for usage)
pertaining to the parallel use of
strategies, guidelines, and procedures.
Plant personnel using different
strategies, guidelines, and procedures
concurrently understand which is the
controlling procedure and therefore
which actions take precedence.
4. Licensees identify and resolve
conflicts between the strategies,
guidelines and procedures.
5. Licensees identify competing
considerations when using the
strategies, guidelines and procedures
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70625
and eliminate or address them in
guidance.
6. Licensees control the development
and maintenance of their content and
format in accordance with human
factors standards and guidelines (e.g.,
writer’s guides) that recognize and
address the interfaces between them in
order to achieve compatibility of the
strategies, guidelines, and procedures.
Staffing
The NRC proposes to require
licensees to provide the staffing
necessary for having an integrated
response capability to support
implementation of the FSGs and
EDMGs. To be effective, staffing for an
expanded response capability should
include the trained and qualified
individuals who would be relied upon
to analyze, recommend, authorize, and
implement the mitigating strategies. The
staffing must directly support the
assessment and implementation of a
range of mitigation strategies intended
to maintain or restore the functions of
core cooling, containment, and spent
fuel pool cooling.
The staffing analyses required by
proposed appendix E, section VII,
should determine when personnel
performing expanded response
functions should report to the site,
within a timeframe sufficient to support
implementation of the strategies that are
not assigned to the on-shift staff. This
would ensure that the functions of core
cooling, containment, and spent fuel
pool cooling are continuously
maintained or are promptly restored.
The NRC has endorsed the industry
guidance for conducting staffing
analyses, NEI 10–05, ‘‘Assessment of
On-Shift Emergency Response
Organization Staffing and Capabilities,’’
Revision 0, and NEI 12–01, ‘‘Guideline
for Assessing Beyond Design Basis
Accident Response Staffing and
Communications Capabilities,’’ Revision
0, and the NRC has issued Interim Staff
Guidance (ISG), NSIR/DPR–ISG–01,
‘‘Emergency Planning for Nuclear Power
Plants,’’ that provides the requisite
details for determining the staffing
levels and for which positions, as well
as which beyond design basis external
events, the applicants and licensees
should evaluate.
The recommended minimum
positions and staffing levels for
emergency plans were initially provided
in NUREG–0654/FEMA–REP–1,
Revision 1, ‘‘Criteria for Preparation and
Evaluation of Radiological Emergency
Response Plans and Preparedness in
Support of Nuclear Power Plants.’’
Following the September 11, 2001,
events, the NRC issued Enhancements
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to Emergency Preparedness Regulations
(EP final rule) (76 FR 72560) to amend
10 CFR part 50, appendix E, to address,
in part, concerns about the assignment
of tasks or responsibilities to on-shift
emergency response organization (ERO)
personnel that would potentially
overburden them and prevent the timely
performance of their functions under
the emergency plan. Licensees must
have enough on-shift staff to perform
specified tasks in various functional
areas of emergency response 24 hours a
day, 7 days a week. This proposed rule
would address the staffing requirements
for the expanded response capabilities
for on-shift response and the ERO.
This proposed rule would require
adequate staffing to implement the FSGs
and EDMGs with the EOPs without
requiring further analysis to supplement
analyses that were completed as a result
of post-Fukushima orders or the EP final
rule. Staffing levels should be
established to ensure that if strategies
are executed there would be no delays
in completing them caused by the lack
of qualified personnel. The NRC expects
that the use of drills, existing training
analyses and other methods would
verify sufficient staffing levels.
Command and Control
The NRC proposes to require
licensees to have a supporting
organizational structure with defined
roles, responsibilities, and authorities
for directing and performing the FSGs
and EDMGs. The objective is to ensure
that licensees address the organizational
implications of: (1) Implementing the
FSGs; and (2) integrating the FSGs and
EDMGs with the EOPs such that
organizational units responsible for onsite accident mitigation (e.g., main
control room, emergency operations
facility, and technical support center
staff) can support a coordinated
implementation of these procedures and
guidelines under the challenging
conditions presented by beyond-designbasis events.
Additional requirements currently
exist in 10 CFR part 50, appendix E,
section IV.A, for the inclusion within
the emergency plan of a description of
the organization for coping with
radiological emergencies, including
definition of authorities,
responsibilities, and duties of
individuals assigned to the licensee’s
emergency organization and the means
for notification of such individuals in
the event of an emergency. These
requirements provide the command and
control structure for use in the
execution of the emergency plan. The
current 10 CFR part 50, appendix E,
sections IV.A.2.a. and IV.A.5., further
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require that the emergency plan include:
(1) A detailed description of the
authorities, responsibilities, and duties
of the individual(s) who will take charge
during an emergency; (2) plant staff
emergency assignments, authorities,
responsibilities, and duties of an onsite
emergency coordinator who shall be in
charge of the exchange of information
with offsite authorities responsible for
coordinating and implementing offsite
emergency measures; and (3) the
identification, by position and function
to be performed, of other employees of
the licensee with special qualifications
for coping with emergency conditions
that may arise.
The need for defined command and
control structures and responsibilities
for use in beyond-design-basis
conditions was recognized in the course
of the development of the guidance and
strategies for the current § 50.54(hh)(2).
As stated in the industry’s guidance
document for that set of requirements,
NEI 06–12, ‘‘B.5.b Phase 2 & 3 Submittal
Guideline,’’ Revision 2, ‘‘Experience
with large scale incidents has shown
that command and control execution
can be a key factor to mitigation
success.’’ The guidance and strategies
developed for that effort include an
EDMG for initial response to provide a
bridge between normal operational
command and control and the command
and control that is provided by the ERO
in the event that the normal command
and control structure is disabled. The
NRC considers that the actions taken in
the development of the EDMG for initial
response for the guidance and strategies
for the current § 50.54(hh)(2) would
continue to be adequate for compliance
with this proposed rule for EDMGs
following the proposed movement of
those requirements.
The endorsed industry guidance in
NEI 12–06, Revision 0, ‘‘Diverse and
Flexible Coping Strategies (FLEX)
Implementation Guide,’’ for the
guidance and strategies required by
Order EA–12–049, specifies that the
existing command and control structure
will be used for transition to the
voluntarily maintained SAMGs
All previous requirements did not
specify a command and control
structure for a multi-unit event that
includes the potential need for
acquisition of offsite assistance to
support onsite event mitigation.
Additionally, these requirements were
not understood to require such a
response since they preceded the
Fukushima event and the regulatory
actions that stemmed from that event.
As a practical matter, the current
command and control structures,
including any changes that resulted
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from the implementation of Order EA–
12–049 requirements, are expected to be
sufficient to ensure that the functional
objectives of this proposed rule are
achieved. Accordingly, the NRC
recognizes that this new requirement
may not be necessary and is requesting
stakeholder feedback on this issue (refer
to section VI of this notice).
Equipment
The NRC proposes to have
requirements for licensee equipment,
including instrumentation, that is relied
upon for use in proposed mitigation
strategies and guidelines. This
rulemaking does not propose to modify
the regulatory treatment of equipment
relied upon for the EDMGs currently
required by § 50.54(hh)(2). The
regulatory treatment of that equipment
will remain as it is described in the
endorsed guidance document for those
strategies and guidelines.
This proposed rule would make
generically applicable requirement (2) of
Order EA–12–049, attachments 2 and 3,
which reads as follows: ‘‘These
strategies must . . . have adequate
capacity to address challenges to core
cooling, containment, and SFP cooling
capabilities at all units on a site subject
to this Order.’’
The industry guidance of NEI 12–06,
as endorsed by NRC interim staff
guidance JLD–ISG–2012–01,
‘‘Compliance with Order EA–12–049,
Order Modifying Licenses with Regard
to Requirements for Mitigation
Strategies for Beyond-Design-Basis
External Events,’’ included
specifications for licensee provision of a
spare capability in order to assure the
reliability and availability of the
equipment required to provide the
capacity and capability requirements of
the Order. This spare capability was
also referred to within the guidance as
an ‘‘N+1’’ capability, where ‘‘N’’ is the
number of power reactor units on a site.
The NRC considered including
requirements similar to the spare
capability specification of NEI 12–06 in
this proposed rule but determined that
such an inclusion would be too
prescriptive and could result in the
need to grant exemptions for alternate
approaches that provide an effective and
efficient means to provide the required
capability of the Order. One example of
this is in the area of flexible hoses, for
which a strict application of the sparing
guidance could necessitate provision of
spare hose or cable lengths sufficient to
replace the longest run of hoses when
significant operating experience with
similar hoses for fire protection does not
show a failure rate that would support
this as a need.
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The development of the mitigating
strategies in response to Order EA–12–
049 relied upon a variety of initial and
boundary conditions that were provided
in the regulatory guidance of JLD–ISG–
2012–01, Revision 0, and NEI 12–06,
Revision 0. These initial and boundary
conditions followed the philosophy of
the basis for imposition of the
requirements of Order EA–12–049,
which was to require additional
defense-in-depth measures to provide
continued reasonable assurance of
adequate protection of public health and
safety. As a result, the industry response
to Order EA–12–049 includes diverse
and flexible means of accomplishing
safety functions rather than providing
an additional further hardened train of
safety equipment. These requirements
and conditions included the
acknowledgement that, due to the fact
that initiation of an event requiring use
of the strategies would include multiple
failures of safety-related structures,
systems, and components (SSCs), it is
inappropriate to postulate further
failures that are not consequential to the
initiating event. As a result, the NRC has
determined that the conditions to which
the instrumentation relied on for the
mitigating strategies would be exposed
do not include conditions stemming
from fuel damage, but instead are
limited as described previously. The
NRC has determined that it should not
be necessary for the instrumentation to
be designed specifically for use in the
mitigating strategies and guidelines, but
instead it would be necessary that the
design and associated functional
performance be sufficient to meet the
demands of those strategies.
The underlying proposed
requirements are for events that are not
included in the design basis events as
that term is used in the § 50.2 definition
of safety-related SSCs. Because of this,
reliance on equipment for use in the
related strategies would not result in the
applicability of 10 CFR part 50,
appendix A, General Design Criterion
(GDC)–2, ‘‘Design bases for protection
against natural phenomena,’’ or the
principal design criterion (PDC)
applicable to a plant’s operating license
if issued prior to GDC–2. This proposed
rule would require reasonable
protection for the equipment relied on
for the mitigation strategies to a hazard
level as severe as that originally
determined for the facility under GDC–
2 or the applicable PDC unless the
reevaluated hazards stemming from the
March 12, 2012, NRC letter issued under
§ 50.54(f), as assessed by the NRC show
that increased protection is necessary.
The March 12, 2012, NRC letter
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requested information on licensees’
seismic and flooding hazards; licensees
and the NRC are currently scheduled to
complete most of the work on the
flooding reevaluations prior to the
anticipated effective date of this
proposed rule. The NRC notes that there
are some licensees whose licensing
bases include requirements for
protection from natural phenomena
beyond those established at the original
licensing (e.g., North Anna Power
Station for the seismic hazard), but
anticipates that these different hazard
levels would be captured in the
reevaluation of external hazards under
the March 12, 2012, NRC letter.
As discussed in COMSECY–14–0037,
‘‘Integration of Mitigating Strategies for
Beyond-Design-Basis External Events
and The Reevaluation of Flooding
Hazards,’’ and its associated SRM, the
requirements of Order EA–12–049 were
imposed in parallel with the agency’s
March 12, 2012, requests for
information on the reevaluation of
external hazards. As a result, Order EA–
12–049 included a requirement in both
attachment 2 and 3 for licensees to
provide reasonable protection for
equipment associated with the required
mitigating strategies from external
events without specific reference to the
necessary level of protection. The
appropriate level of protection from
external hazards, particularly flooding,
was the subject of discussion in the
course of NRC-held public meetings
leading up to the issuance of JLD–ISG–
2012–01 and its endorsement of the
industry guidance for Order EA–12–049,
NEI 12–06. Section 6.2.3.1 of NEI 12–06
specifies that the level of protection for
flooding should be ‘‘the flood elevation
from the most recent site flood analysis.
The evaluation to determine the
elevation for storage should be informed
by flood analysis applicable to the site
from early site permits, combined
license applications, and/or contiguous
licensed sites.’’ The choice of this
hazard level was driven by the
recognition that, while the flooding
hazard reevaluations by holders of
operating licenses and construction
permits may not be complete in advance
of the development and implementation
of the mitigating strategies, information
available from flood analyses for nearby
sites could be taken into account in
choosing the appropriate level in order
to avoid the need for rework or
modification of the strategies. Many
licensees took the former approach,
using their best estimates of potential
hazard levels and providing additional
margin to the current licensing basis.
(See, e.g., the description of the flooding
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70627
strategies for Fort Calhoun Station on
page B–43 et seq., of Omaha Public
Power District’s Overall Integrated Plan
(Redacted) in Response to March 12,
2012, Order EA–12–049.)
In COMSECY–14–0037, the NRC staff
requested that the Commission affirm
that: (1) Licensees for operating nuclear
power plants need to address the
reevaluated flooding hazards within
their mitigating strategies for beyonddesign-basis external events; (2)
licensees for operating nuclear power
plants may need to address some
specific flooding scenarios that could
significantly damage the power plant
site by developing targeted or scenariospecific mitigating strategies, possibly
including unconventional measures, to
prevent fuel damage in reactor cores or
spent fuel pools; and (3) the NRC staff
should revise the flooding assessments
and integrate the decision-making into
the development and implementation of
mitigating strategies in accordance with
Order EA–12–049 and this rulemaking.
These principles reflect the NEI 12–06
reference to the ‘‘most recent flood
analysis’’ previously discussed and the
documentation by licensees in their
overall integrated plans for the
mitigating strategies that, at the time of
their submittals, ‘‘flood and seismic
reevaluations pursuant to the § 50.54(f)
letter of March 12, 2012, are not
completed and therefore not assumed in
this submittal. As the reevaluations are
completed, appropriate issues would be
entered into the corrective action system
and addressed on a schedule
commensurate with other licensing
bases changes.’’ In SRM–COMSECY–
14–0037, the Commission approved the
first two items recommended by the
NRC staff, regarding the need for
operating nuclear power plant licensees
to address the reevaluated flood hazards
within the mitigating strategies and the
potential for using targeted or scenario
specific mitigating strategies. The
Commission did not approve the third
recommendation, but that
recommendation is outside the scope of
this rulemaking effort. The NRC drafted
the proposed rule to reflect this
direction and in recognition of the fact
that the wording of Order EA–12–049
and its associated guidance did not
make clear that the mitigating strategies
equipment would require protection to
the reevaluated hazard levels resulting
from the § 50.54(f) request for
information of March 12, 2012.
Because the events for which the
proposed mitigating strategies are to be
used are outside the scope of the design
basis events considered in establishing
the basis for the design of the facility,
equipment that is relied upon for those
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mitigating strategies may not fall within
the scope of § 50.65, ‘‘Requirements for
monitoring the effectiveness of
maintenance at nuclear power plants.’’
Nevertheless, the NRC proposes that
such equipment should receive
adequate maintenance in order to assure
that it is capable of fulfilling its
intended function when called upon.
The NRC proposes to require
licensees to have a means to remotely
monitor wide-range SFP level as a part
of the equipment relied upon to support
the FSGs. This provision would make
generically-applicable the requirements
imposed by Order EA–12–051. The NRC
considered including the detailed
requirements from Order EA–12–051
within this proposed rule, but
determined that the more performancebased approach taken with this
proposed rule would better enable an
applicant for a new reactor license or
design certification to provide
innovative solutions to address the need
to effectively prioritize event mitigation
and recovery actions between the source
term contained in the reactor vessel and
that contained within the spent fuel
pool.
Training
The NRC anticipates that mitigation of
the effects of beyond-design-basis events
using the proposed strategies and
guidelines would be principally
accomplished through manual actions
rather than automated plant responses.
Additionally, the instructions provided
for event mitigation may be largely
provided as high level strategies and
guidelines rather than step-by-step
procedures. The use of strategies and
guidelines supports the ability to adapt
the mitigation measures to the specific
plant damage and operational
conditions presented by the event.
However, effective use of this flexibility
would depend upon the knowledge and
abilities of personnel to select
appropriate strategies or guidelines from
a range of options and implement
mitigation measures using equipment or
methods that may differ from those
employed for normal operation or
design-basis event response. As a result,
the NRC considers personnel training
and qualification necessary to ensure
that individuals would be capable of
effectively performing their roles and
responsibilities in accordance with the
strategies and guidelines that would be
required by this proposed rule.
The NRC acknowledges that licensee
training programs, such as those
required for licensed operators under 10
CFR part 55, ‘‘Operators’ Licenses,’’ the
programs for plant personnel specified
under § 50.120, ‘‘Training and
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Qualification of Nuclear Power Plant
Personnel,’’ and the training for
emergency response personnel required
by 10 CFR part 50, appendix E, section
IV.F, ‘‘Training,’’ would likely provide
for many of the knowledge and abilities
required for performing activities in
accordance with the strategies and
guidelines that would be required by
this proposed rule. Nevertheless, as
noted previously, the NRC anticipates
that these strategies and guidelines may
use new methods or equipment that
require knowledge and abilities not
currently addressed under existing
training programs and, as a result, there
may be gaps in these training programs
that must be addressed to support
effective use of the strategies and
guidelines. Accordingly, this proposed
rule would further require that licensees
provide for the training of personnel
using a systems approach to training as
defined in § 55.4 (the Systems Approach
to Training (SAT) process), except for
elements already covered under other
NRC regulations.7 The SAT process,
which is acceptable for meeting training
requirements under 10 CFR part 55 and
§ 50.120, would also be appropriate for
licensee identification and resolution of
any current gaps or future modifications
to personnel training that may be
necessary to provide for the training of
personnel performing activities in
accordance with the mitigating
strategies and guidelines that would be
required by this proposed rule. The NRC
recognizes that there are other training
programs that are currently acceptable
for meeting other regulatory required
training (e.g., 10 CFR part 50, appendix
E, section IV.F) that do not use the SAT
process. In light of the existence of these
training programs, which have been
found acceptable for more frequently
occurring design-basis events, the NRC
has determined that these training
programs can meet the needs for
common elements with beyond-designbasis event mitigation. Therefore, the
NRC would not require licensees to
revise these training programs to use the
SAT process to meet the proposed
requirements. Licensees would be
required to use the SAT process for
newly identified training requirements
supporting the effective use of the
7 This definition of a systems approach to training
(SAT), is a training program that includes the
following five elements: (1) Systematic analysis of
the jobs to be performed; (2) learning objectives
derived from the analysis which describe desired
performance after training; (3) training design and
implementation based on the learning objectives;
(4) evaluation of trainee mastery of the objectives
during training; and (5) evaluation and revision of
the training based on the performance of trained
personnel in the job setting.
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strategies and guidelines that would be
required by this proposed rule.
By using the SAT process, licensees
would identify and train on any
additional tasks that would be necessary
to implement the strategies and
guidelines for the mitigation of beyonddesign-basis events as defined in this
proposed rule. The additional tasks
identified would be incorporated into
the training program to ensure
appropriate training would be
administered for each qualified
individual designated to implement the
strategies and guidelines required by
this proposed rule.
Change Control
The proposed requirements address
beyond-design-basis events, and as
such, currently existing change control
processes do not address all aspects of
a contemplated change, including most
notably § 50.59. As such, the proposed
change control provision is intended to
supplement the existing change control
processes and focus on the beyonddesign-basis aspects of the proposed
change.
This proposed rule would not contain
criteria typically included in other
change control processes that are used
as a threshold for determining when a
licensee needs to seek NRC review and
approval prior to implementing the
proposed change. Instead, the proposed
provisions would require that the
evaluations of the proposed change
reach a conclusion that all new
requirements continue to be met and
that this evaluation is documented and
maintained to support NRC inspection.
Proposed changes that remain
consistent with regulatory guidance
would be acceptable, since such
changes would ensure continued
compliance with the proposed
provisions in this rulemaking. The NRC
recognizes that the proposed change
control provisions may result in
licensees seeking NRC review and
approval of proposed changes that do
not follow current regulatory guidance
for this proposed rulemaking potentially
through a license amendment or
through NRC review of new or revised
regulatory guidance. Accordingly, the
NRC is requesting stakeholder feedback
on this issue to determine whether there
is a better regulatory approach for
change control (refer to the ‘‘Specific
Requests for Comments’’ section of this
document).
During public discussions before
issuance of this proposed rule, there
was a suggestion that the NRC should
consider a provision to allow a licensee
to request NRC review of a proposed
change, and that if the NRC did not act
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upon the request for a suggested time
period (e.g., 180 days) that the request
be considered ‘‘acceptable.’’ The NRC
did not include this ‘‘negative consent’’
type of approval process in this
proposed rule and instead the proposed
change control process places the
responsibility on the licensees to ensure
that proposed changes result in
continued compliance with the
proposed rule provisions, or are
otherwise submitted to the NRC
following the § 50.12 exemption
process. The NRC expects to obtain
stakeholder feedback on this issue and
will consider that feedback when
developing the final rule provisions.
A licensee may intend to change its
facility, procedures, or guideline sets to
revise some aspect of beyond-designbasis mitigation (i.e., governed by the
proposed provisions of this rulemaking),
and the same change can impact
multiple aspects of the facility (i.e.,
impact ‘‘design basis’’ aspects of the
facility and be subject to other
regulations and change control
processes). As previously discussed, the
NRC anticipates that a licensee would
ensure that a proposed change is
consistent with endorsed guidance to
ensure continued compliance with the
proposed provisions. This same change
could also impact safety-related
structures, systems, and components,
either directly (e.g., a proposed change
that impacts a physical connection of
mitigation strategies equipment to a
safety-related component or system) or
indirectly (e.g., a proposed change that
involves the physical location of
mitigation equipment in the vicinity of
safety-related equipment that presents a
potential for adverse physical/spatial
interactions with safety-related
components). As such, § 50.59 would
need to be applied to evaluate the
proposed change for any potential
impacts to safety-related SSCs.
Additionally, proposed changes can
impact numerous aspects of the facility
beyond the safety-related impacts,
including implementation of fire
protection requirements, security
requirements, emergency preparedness
requirements, or safety/security
interface requirements. Accordingly, it
would be necessary for a licensee to
ensure that all applicable change control
provisions are used to judge the
acceptability of facility changes
including, for example, change control
requirements for fire protection,
security, and emergency preparedness.
Additionally, recognizing the nature of
mitigation strategies and the reliance on
human actions, it is also necessary to
ensure that the proposed changes satisfy
the safety/security interface
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requirements of § 73.58. It is the
obligation of the licensee to comply
with all applicable requirements, and as
such, the proposed change control
provisions could be viewed as
unnecessary. However recognizing the
potential complexity of proposed
facility changes and the complexity of
existing regulatory requirements that
govern change control, the NRC
concluded that adding the proposed
change control provision, for the
purposes of regulatory clarity, was
warranted.
address what was then termed
prolonged SBO 8 and multi-unit events.
The accident at Fukushima highlighted
the need to determine and implement
the required staff to fill all necessary
positions responding to multi-unit
events. Additionally, NRC recognizes
that the communication equipment
relied upon to coordinate the event
response during an ELAP should be
powered and maintained.
Implementation
The NRC proposes a compliance
schedule of 2 years following the
effective date of the rule. This proposed
rule does not include any special
provision for a holder of a COL as of the
effective date of the rule for which the
Commission has not made the finding
required under § 52.103(g) (i.e., a COL
holder still in the construction phase).
The NRC considers the duration of 2
years prior to compliance with the
requirements of this proposed rule to be
acceptable because the majority of these
requirements have been previously
implemented under Orders EA–12–049
and Order EA–12–051 or § 50.54(hh)(2),
or are in response to the § 50.54(f)
requests for information issued March
12, 2012.
This proposed rule would require
additional communications capabilities
for events that result in extended loss of
ac power onsite, or potential destruction
of offsite communications
infrastructure. Because of the
destruction to communications
capability that occurred at Fukushima,
the NRC would propose requirements
for licensees to provide a greater
capability to communicate with onsite
staff to support mitigation of the event,
and to support offsite communications
to gain any additional support or to
perform emergency preparedness
functions. The proposed requirements
would support effective implementation
of the FSGs and were included as part
of the implementation of Order EA–12–
049.
Regulatory Basis for New Emergency
Response Capability Requirements
A significant objective of this
rulemaking is to make the requirements
that were previously imposed under
Order EA–12–049 generically
applicable. As an implicit part of the
implementation of Order EA–12–049,
additional emergency response
capabilities were included to address a
beyond-design-basis external event that
impacts multiple power reactor units,
and potentially multiple source terms,
on the site. In all cases, these additional
proposed revisions are considered to be
necessary to effectively mitigate such an
event, consistent with the NRC’s intent
in issuing Order EA–12–049. These
proposed requirements were not
explicitly addressed in the previous
regulatory basis documents issued for
the two rulemakings that were
consolidated into this rulemaking. This
section discusses the basis for these
proposed emergency response capability
provisions.
The March 12, 2012, § 50.54(f) letters
(i.e., Request for Information Pursuant
to title 10 of the Code of Federal
Regulations 50.54(f)) requested
information from the licensees that, in
part, was intended to verify the
adequacy of emergency planning to
2. Staffing Assessment
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1. Onsite and Offsite Communications
Capability
This proposed rule would require an
assessment that is considered essential
for effective implementation of the
FSGs. This assessment matches the one
that was conducted under the March 12,
2012, request for information that was
developed to align with the
requirements included in Order EA–12–
049 (i.e., the staffing analysis
specifically considered the staffing
needs for implementing Order EA–12–
049); licensees would not be required to
repeat the staffing analysis. A lessonlearned from the Fukushima event is
that there are increased staffing
demands following a beyond-designbasis external event, and this coupled
with the subsequent NRC requirements
issued in Order EA–12–049 required the
staffing analysis to provide a level of
assurance that the FSGs can be
implemented. This provision would
then support the proposed requirements
of the rule to have sufficient staffing to
implement the FSGs and EDMGs in
conjunction with the EOPs.
8 While the letter made use of the term
‘‘prolonged SBO,’’ the request for information was
for a loss of all alternating current power, which
was subsequently termed an ELAP. The phrase
‘‘prolonged SBO’’ is retained here to accurately
reflect the wording used in the letter.
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3. Change Control
The NRC would not require a power
reactor applicant or licensee to address
or implement the proposed
communications and staffing analysis
requirements through the licensee’s or
applicant’s emergency plan or maintain
the capabilities as a part of the
emergency preparedness program. This
approach would allow for site-specific
flexibility in implementation. Therefore,
the requirements of maintaining the
communications and staffing analysis in
an effective emergency plan and
controlling changes to it under
§ 50.54(q) would not apply when
implementation of the requirements is
not in the emergency plan, but in all
cases, the change control process of this
proposed rule would apply. However, if
an applicant or a licensee incorporates
the communications and staffing
analysis into the emergency
preparedness program through the
emergency plan or emergency plan
implementing procedures, the
requirements of § 50.54(q) would apply.
stakeholders through public meetings to
review and provide feedback on NEI 13–
06, ‘‘Enhancements to Emergency
Response Capabilities for Beyond
Design Basis Accidents and Events,’’
Revision 0, which, in part, would
provide licensees with guidance on
implementing a multiple source term
dose assessment capability.
The capability should be available to
support responses during events both
within and beyond the plant design
basis. Also, the licensee should discuss
the site’s multi-unit and multiple source
term dose assessment capability with
the offsite response organizations,
particularly, with the agencies that are
responsible for making decisions on
public protective action
recommendations. Agreement on the
methods and results would avoid
unnecessary delays during the event in
making the public protective action
decisions, public notification, and the
implementation of protective actions.
4. Multiple Source Dose Assessment
Capability
This proposed rule would require
licensees to have a means for
determining the magnitude of, and for
continually assessing the impact of, the
release of radioactive materials,
including from all reactor core and
spent fuel pool sources. A lesson
learned from the Fukushima Dai-ichi
event is that there is a potential for a
beyond-design-basis external event to
result in multiple source terms from
multiple release points, and under such
a situation, additional capabilities are
necessary to support development of
appropriate protective action
recommendations. In COMSECY–13–
0010, ‘‘Schedule and Plans for Tier 2
Order on Emergency Preparedness for
Japan Lessons Learned,’’ dated March
27, 2013, the NRC staff informed the
Commission that licensees would
provide information about their current
multiple source term dose assessment
capability, or a schedule for
implementing such a capability, and
that associated implementation would
occur by the end of calendar year 2014.
Licensee implementation of the
multiple source term dose assessment
capability would be verified by
inspection under TI–2515/191,
‘‘Inspection of the Licensee’s Responses
to Mitigation Strategies Order EA–12–
049, Spent Fuel Pool Instrumentation
Order EA–12–051 and Emergency
Preparedness Information Requested in
NRC March 12, 2012.’’ The NRC has
been working with the industry and
The proposed requirements of 10 CFR
part 50, appendix E, section VI, for the
Emergency Response Data System
(ERDS) would reflect the use of up-todate technologies and remain
technology-neutral so that the
equipment supplied by NRC would
continue to be replaced as needed,
without the need for future rulemaking
because equipment becomes obsolete. In
2005, the NRC initiated a
comprehensive, multi-year effort to
modernize all aspects of the ERDS,
including the hardware and software
that constitute the ERDS infrastructure
at NRC headquarters, as well as the
technology used to transmit data from
licensed power reactor facilities. As
described in NRC Regulatory Issue
Summary 2009–13, ‘‘Emergency
Response Data System Upgrade From
Modem to Virtual Private Network
Appliance,’’ the NRC engaged licensees
in a program that replaced the existing
modems used to transmit ERDS data
with Virtual Private Network (VPN)
devices. The licensees now have less
burdensome testing requirements, faster
data transmission rates, and increased
system security.
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5. Technology-Neutral Emergency
Response Data System
V. Section-by-Section Analysis
Proposed § 50.8 Information Collection
Requirements: OMB Approval
This section, which lists all
information collections in 10 CFR part
50 that have been approved by the
Office of Management and Budget
(OMB), is revised by adding a reference
to § 50.155, the mitigation of beyond-
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design-basis events rule. As discussed
in the ‘‘Paperwork Reduction Act
Statement’’ section of this document,
the OMB has approved the information
collection and reporting requirements in
the final mitigation of beyond-designbasis events rule. No specific
requirement or prohibition is imposed
on applicants or licensees in this
section.
Proposed § 50.34 Contents of
Applications; Technical Information
Section 50.34 identifies the technical
information that must be provided in
applications for construction permits
and operating licenses. Paragraphs (a)
and (b) of this section identify the
information to be submitted as part of
the preliminary or final safety analysis
report, respectively. New paragraph (i)
of this section would identify
information to be submitted as part of
an operating license application, but not
necessarily included in the final safety
analysis report.
The NRC is proposing an
administrative change to § 50.34(a)(13)
and (b)(12) to remove the word
‘‘stationary’’ from the requirement for
power reactor applicants who apply for
a construction permit or operating
license, respectively. Section
50.34(a)(13) and 50.34(b)(12) were
added to the regulations in 2009 to
reflect the requirements of § 50.150(b)
regarding the inclusion of information
within the preliminary or final safety
analysis reports for applicants subject to
§ 50.150. Section 50.34(a)(13) and
(b)(12) were inadvertently limited to
‘‘stationary power reactors,’’ matching
the wording of § 50.34(a)(1), (a)(12),
(b)(10), and (b)(11), which pertain to
seismic risk hazards for stationary
power reactors. The NRC does not
intend to change the meaning of this
requirement by removing the word
‘‘stationary’’ from these requirements.
This change is intended to ensure
consistency in describing the types of
applications to which the requirements
apply.
Proposed § 50.34(i) would require
each application for an operating license
to include the applicant’s plans for
implementing the requirements of
proposed § 50.155 and 10 CFR part 50,
appendix E, section VII, including a
schedule for achieving full compliance
with these requirements. This paragraph
would also require the application to
include a description of: (1) The
integrated response capability that
would be required by proposed
§ 50.155(b); (2) the equipment upon
which the strategies and guidelines that
would be required by proposed
§ 50.155(b)(1) rely, including the
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planned locations of the equipment and
how the equipment and SSCs would
meet the design requirements of
proposed § 50.155(c); and (3) the
strategies and guidelines that would be
required by proposed § 50.155(b)(2).
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Proposed § 50.54 Conditions of
Licenses
Applicability of the requirements of
§ 50.54(hh) is currently governed by
§ 50.54(hh)(3), which makes these
requirements inapplicable to a nuclear
power plant for which the certifications
required under § 50.82(a) or
§ 52.110(a)(1) have been submitted. This
rulemaking proposes to renumber
§ 50.54(hh)(3) to reflect the proposed
movement of the requirements currently
within § 50.54(hh)(2) to proposed
§ 50.155(b)(2). The proposed
§ 50.54(hh)(2) includes editorial changes
to reflect that the applicability is to the
licensee rather than the facility and to
correct the section numbers for the
required certifications. Additionally,
proposed § 50.54(hh)(2) clarifies that the
inapplicability is dependent upon the
NRC docketing of the certifications
rather than licensee submittal because
§ 50.82(a)(2) and § 52.110(b) set the
docketing of the certifications as the
point at which operation of the reactor
is no longer authorized and fuel cannot
be placed in the reactor vessel.
Proposed § 50.155(a), ‘‘Applicability’’
Proposed § 50.155(a) would describe
which entities would be subject to this
proposed rule. Proposed § 50.155(a)(1)
would provide that each holder of an
operating license for a nuclear power
reactor under part 50 and each holder of
a combined license under part 52 after
the Commission has made the finding
under § 52.103(g) that the acceptance
criteria have been met, would be
required to comply with the
requirements of this proposed rule until
the time when the NRC has docketed
the certifications described in
§ 50.82(a)(1) or § 52.110(a). These
certifications inform the NRC that the
licensee has permanently ceased to
operate the reactor and permanently
removed all fuel from the reactor vessel.
Upon the docketing of the certifications,
by operation of law under § 50.82(a)(2)
or § 52.110(b), the licensee’s part 50 or
52 license, respectively, no longer
authorizes operation of the reactor or
emplacement or retention of fuel in the
reactor vessel. At this point, many
portions of this proposed rule would not
apply to the licensee because the
removal of fuel from the reactor vessel
would eliminate the risk of a reactorbased beyond-design-basis event and
the need to prepare to mitigate those
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events. Proposed § 50.155(a)(3) would
set forth the requirements that would
apply to the licensee with § 50.82(a)(2)
or § 52.110(b) certification.
Proposed § 50.155(a)(2) would
provide that each applicant for an
operating license for a nuclear power
reactor under part 50 and each holder of
a combined license before the
Commission makes the finding under
§ 52.103(g) would be required to comply
with the requirements of this proposed
rule no later than the date on which the
Commission issues the operating license
under § 50.57 or makes the finding
under § 52.103(g), respectively. Under
this regulation, operating license
applicants and COL holders would be in
compliance with this proposed rule
before they begin operating their
reactors, thereby providing additional
defense-in-depth capabilities at the
inception of power operations.
Proposed § 50.155(a)(3) would
address power reactor licensees that
permanently stop operating and defuel
their reactors and begin
decommissioning the reactors. The
proposed paragraph would provide that
when an entity subject to the
requirements of proposed § 50.155
submits to the NRC the certifications
described in § 50.82(a)(1) or § 52.110(a),
and the NRC dockets those
certifications, then that licensee would
be required to comply with the
requirements of proposed § 50.155(b)
through (e) associated with maintaining
or restoring secondary containment, if
applicable, and spent fuel pool cooling
capabilities for the reactor described in
the § 50.82(a)(1) or § 52.110(a)
certifications, except for the
requirements in proposed § 50.155(c)(4)
and proposed in 10 CFR part 50,
appendix E, section VII. In other words,
the licensee could discontinue
compliance with the requirements in
proposed § 50.155 associated with
maintaining or restoring core cooling or
the primary reactor containment
functional capability for the reactor
described in the § 50.82(a)(1) or
§ 52.110(a) certifications. Compliance
with the requirements of proposed
§ 50.155(b) through (e) associated with
maintaining or restoring secondary
containment, if applicable, and spent
fuel pool cooling capabilities would
continue as long as spent fuel remains
in the spent fuel pool(s) associated with
the reactor described in the § 50.82(a)(1)
or § 52.110(a) certifications.
Proposed § 50.155(a)(3)(i) would
discontinue the requirement to comply
with proposed § 50.155(b)(1)
requirements concerning beyonddesign-basis event strategies and
guidelines for spent fuel pool cooling
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70631
capabilities, and any requirements
based on compliance with proposed
§ 50.155(b)(1), for certain licensees in
decommissioning. These licensees
would have to perform and retain an
analysis demonstrating that sufficient
time has passed since the fuel within
the spent fuel pool was last irradiated
such that the fuel’s low decay heat and
boil-off period provide sufficient time in
an emergency for the licensee to obtain
off-site resources to sustain the spent
fuel pool cooling function indefinitely
and therefore obviate the need to
comply with proposed § 50.155(b)(1)
using installed or on-site portable
equipment.
Proposed § 50.155(a)(3)(i) also would
discontinue the requirement to comply
with the remaining provisions of
proposed § 50.155 except proposed
§ 50.155(b)(2) when the fuel in the spent
fuel pool reaches the point where
beyond-design-basis event strategies and
guidelines for spent fuel cooling
capabilities would no longer be needed.
Proposed § 50.155(a)(3)(ii) would
exempt the licensee for Millstone Power
Station Unit 1, Dominion Nuclear
Connecticut, Inc. from the requirements
of proposed § 50.155.
Under proposed § 50.155(a)(3), once a
power reactor licensee has permanently
stopped operating and defueled its
reactor and has removed all irradiated
fuel from the spent fuel pool(s)
associated with the reactor described in
the § 50.82(a)(1) or § 52.110(a)
certifications, the licensee could cease
compliance with all requirements in
proposed § 50.155 for the unit(s)
described in the § 50.82(a)(1) or
§ 52.110(a) certifications.
Proposed § 50.155(b), ‘‘Integrated
Response Capability’’
Proposed paragraph (b) would require
that each applicant or licensee develop,
implement, and maintain an integrated
response capability that includes: (1)
Mitigation strategies for beyond-designbasis external events, (2) extensive
damage mitigation guidelines, (3)
integration of these strategies and
guidelines with emergency operating
procedures, (4) sufficient staffing to
support implementation of the
guidelines in conjunction with the
EOPs, and (5) a supporting
organizational structure with defined
roles, responsibilities, and authorities
for directing and performing these
strategies, guidelines, and procedures.
The intent is to require that the
operating and combined license holders
described in § 50.155(a) be able to
mitigate the consequences of a wide
range of initiating events and plant
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damage states that can challenge public
health and safety.
The specification of strategies,
guidelines and procedures for the
response capability not only defines the
required scope of the capability but sets
forth the expectation that the response
capability must include planned
methods for responding that are
documented in some form of written
instruction. To serve their function,
these strategies, guidelines and
procedures must be acted upon by
individuals capable of understanding
their appropriate application and
implementing them. Accordingly,
proposed § 50.155(b)(4), in conjunction
with proposed § 50.155(d), would
require that the response capability
include an adequate number of
personnel with the knowledge and skills
to implement the strategies, guidelines
and procedures and that the mitigation
activities of these individuals be
coordinated in accordance with a
defined command and control structure
as would be required by proposed
§ 50.155(b)(5).
Proposed § 50.155(b) would specify
that the integrated response capability
be ‘‘developed, implemented, and
maintained.’’ This language reflects
NRC consideration that whereas certain
elements of the integrated response
capability have been developed and are
currently in place (e.g., the EDMGs),
other elements (e.g., guidelines to
mitigate beyond-design-basis external
events) may require additional efforts to
complete and integrate. The term
‘‘implement’’ is used in proposed
§ 50.155(b) to mean that the integrated
response capability is established and
available to respond, if needed (e.g., the
licensee has approved the strategies,
guidelines, and procedures for use). The
term ‘‘maintain’’ as used in proposed
§ 50.155(b) reflects the NRC’s intent that
licensees ensure that the integrated
response capability, once established, be
preserved consistent with the change
control provisions of proposed
§ 50.155(g).
Proposed § 50.155(b)(1) would
establish requirements for applicants
and licensees to develop, implement
and maintain strategies and guidelines
to mitigate beyond-design-basis external
events from natural phenomenon that
result in an extended loss of ac power
concurrent with either a loss of normal
access to the ultimate heat sink or, for
passive reactor designs, a loss of normal
access to the normal heat sink. These
provisions would require that the
strategies and guidelines be capable of
being implemented site-wide and
include:
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i. Maintaining or restoring core
cooling, containment, and spent fuel
pool cooling capabilities; and
ii. Enabling the use and receipt of
offsite assistance and resources to
support the continued maintenance of
the functional capabilities for core
cooling, containment, and spent fuel
pool cooling indefinitely, or until
sufficient site functional capabilities can
be maintained without the need for the
mitigation strategies.
New reactors may establish different
approaches from operating reactors in
developing strategies to mitigate
beyond-design-basis events. For
example, new reactors may use installed
plant equipment for both the initial and
long-term response to an ELAP with less
reliance on portable equipment and
offsite resources than currently
operating nuclear power plants. The
NRC would consider the specific plant
approach when evaluating the SSCs
relied on as part of the mitigating
strategies for beyond-design-basis
events. Additional information on these
strategies is provided in DG–1301,
which would endorse an updated
version of the industry guidance, for use
by applicants and licensees, that
incorporates lessons learned and
feedback stemming from the
implementation of Order EA–12–049,
consistent with Commission direction.
The proposed § 50.155(b)(1) would
limit the requirements for mitigation
strategies to addressing ‘‘external events
from natural phenomena.’’ This
proposed language is meant to
differentiate these requirements from
those that currently exist within
§ 50.54(hh)(2), which address beyonddesign-basis external events leading to
loss of large areas of the plant due to
explosions and fire. This proposed
provision also results in the need to
have mitigation equipment be
reasonably protected from the effects of
external natural phenomena as
discussed in later portions of this
proposed notice.
The proposed requirements to enable
‘‘the acquisition and use of offsite
assistance and resources to support the
functions required by (b)(1)(i) of this
section indefinitely, or until sufficient
site functional capabilities can be
maintained without the need for the
mitigation strategies’’ means that
licensees would need to plan for
obtaining sufficient resources (e.g., fuel
for generators and pumps, cooling and
makeup water) to continue removing
decay heat from the irradiated fuel in
the reactor vessel and spent fuel pool as
well as to remove heat from
containment as necessary until an
alternate means of removing heat is
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established. The alternate means of
removing heat could be achieved
through repairs to existing SSCs,
commissioning of new SSCs, or
reduction of decay heat levels through
the passage of time sufficient to allow
heat removal through losses to the
ambient environment. More detailed
planning for offsite assistance and
resources would be necessary for the
initial period following the event; less
detailed planning would be necessary as
the event progresses and the licensee
can mobilize additional support for
recovery.
Proposed § 50.155(b)(2) would move
requirements for EDMGs that currently
exist in § 50.54(hh)(2) to proposed
§ 50.155(b)(2). This move would
consolidate the requirements for
beyond-design-basis strategies and
guidance into a single section to
promote efficiency in their
consideration and allow for better
integration. Although the wording of
proposed § 50.155(b)(2) differs from that
of § 50.54(hh)(2), no substantive change
in the requirements is intended.
The preamble to § 50.155(b)(2) that is
contained in § 50.155(b) is worded so
that it would require that licensees
‘‘develop, implement, and maintain’’
the strategies and guidance required in
§ 50.155(b)(2) rather than using the
wording of § 50.54(hh)(2) to require that
licensees ‘‘develop and implement’’ the
described guidance and strategies. The
addition of the word ‘‘maintain’’ was
proposed in order to correct an
inconsistency with the wording of
§ 50.54(hh)(1), which was promulgated
along with § 50.54(hh)(2) in the Power
Reactor Security Rulemaking, issued on
March 27, 2009 (74 FR 13926), and to
clarify that the NRC considers the plain
language meaning of the transitive verb
‘‘to implement,’’ ‘‘to put into effect,’’ as
it was used in the context of
§ 50.54(hh)(2) as including maintenance
of the resulting guidance and strategies.
The requirement as it was originally
issued in the Interim Compensatory
Measures Order, EA–02–026, dated
February 25, 2002, was worded to
require licensees to ‘‘develop’’ specific
guidance, while the corresponding
license conditions imposed by the
conforming license amendment was
worded to require each affected licensee
to ‘‘develop and maintain’’ strategies.
The NRC believes that the phrase
‘‘develop, implement, and maintain’’
would provide better clarity of what is
necessary for compliance with the
requirements without substantively
changing the requirements.
Proposed § 50.155(b)(3) would
establish requirements for licensees to
integrate the strategies and guidelines in
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(b)(1) and (2) with EOPs. The
Commission’s intent regarding
integration of strategies, guidelines, and
procedures was introduced in the
section-by-section analysis of the
proposed § 50.155(b) requirement for an
integrated response capability and is
described further under ‘‘Integration
with EOPs’’ of Section IV.D, Proposed
Rule Regulatory Bases.
Proposed § 50.155(b)(4) would
establish requirements for licensees to
provide the staffing necessary for having
an integrated response capability to
support implementation of the strategies
and guidelines in proposed (b)(1) and
(2). The number and composition of the
response staff should be sufficient to
implement mitigation strategies
intended to maintain or restore the
functions of core cooling, containment,
and spent fuel pool cooling for all
affected units. The word ‘‘sufficient’’ is
used in the proposed paragraph to
reflect its meaning ‘‘adequate.’’
Proposed § 50.155(b)(5) would
establish requirements for licensees to
have a supporting organizational
structure with defined roles,
responsibilities, and authorities for
directing and performing the guidelines
in (b)(1) and (2).
Proposed § 50.155(c) Equipment
Requirements
Proposed § 50.155(c)(1) would require
that equipment relied on for the
mitigation strategies of proposed
paragraph (b)(1) have sufficient capacity
and capability to simultaneously
maintain or restore core cooling,
containment, and spent fuel pool
capabilities for all the power reactor
units and spent fuel pools within the
licensee’s site boundary.
The phrase sufficient ‘‘capacity and
capability’’ in proposed § 50.155(c)(1)
means that the equipment, and the
instrumentation relied on to support the
decision making necessary to
accomplish the associated mitigating
strategies of § 50.155(b)(1), should have
the design specifications necessary to
assure that it would function and
provide the requisite plant information
when subjected to the conditions it is
expected to be exposed to in the course
of the execution of those mitigating
strategies. These design specifications
would include appropriate
consideration of environmental
conditions that are predicted in the
thermal-hydraulic and room heat up
analyses used in the development of the
mitigating strategies responsive to
§ 50.155(b)(1).
Proposed § 50.155(c)(2) would require
reasonable protection of the
§ 50.155(b)(1) equipment rather than the
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treatment of SSCs important to safety
under GDC–2, which requires that those
SSCs be designed to withstand the
effects of natural phenomena without
loss of capability to perform their safety
functions. The phrase ‘‘reasonable
protection’’ was initially proposed in
recommendation 4.2 of the NTTF Report
in the context of a proposed NRC Order
to licensees to require ‘‘reasonable
protection’’ of equipment required by
§ 50.54(hh)(2) from the effects of designbasis external events along with
providing additional sets of equipment
as an interim measure during a
subsequent rulemaking on prolonged
SBO. The NTTF based this
recommendation on the potential
usefulness of the EDMGs in
circumstances that do not involve loss
of a large area of the plant and
explained that reasonable protection
from external events as used in the
NTTF Report meant that the equipment
must ‘‘be stored in existing locations
that are reasonably protected from
significant floods and involve robust
structures with enhanced protection
from seismic and wind-related events.’’
The NRC carried forward the use of
the phrase ‘‘reasonable protection’’ in
Order EA–12–049 with regard to the
protection required for equipment
associated with the mitigation strategies.
That Order did not, however, define
‘‘reasonable protection.’’ The NRC
guidance in JLD–ISG–2012–01
discussed ‘‘reasonable protection’’ as
follows:
Storage locations chosen for the equipment
must provide protection from external events
as necessary to allow the equipment to
perform its function without loss of
capability. In addition, the licensee must
provide a means to bring the equipment to
the connection point under those conditions
in time to initiate the strategy prior to
expiration of the estimated capability to
maintain core and spent fuel pool cooling
and containment functions in the initial
response phase.
In JLD–ISG–2012–01, the NRC
endorsed NEI 12–06, Revision 0, as
providing an acceptable method to
provide reasonable protection, storage,
and deployment of the equipment
associated with Order EA–12–049. The
NEI 12–06, Revision 0, also omitted a
definition for the phrase ‘‘reasonable
protection,’’ but did provide guidelines
for use by licensees for protecting the
equipment from the hazards that would
be commonly applicable: (1) Seismic
hazards; (2) flooding hazards; (3) severe
storms with high winds; (4) snow, ice
and extreme cold; and(5) high
temperatures. These guidelines
included the use of structures designed
to or evaluated equivalent to American
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70633
Society for Civil Engineers (ASCE)
Standard 7–10, ‘‘Minimum Design
Loads for Buildings and Other
Structures,’’ for the seismic and high
winds hazards, rather than requiring the
use of a structure that meets the plant’s
design basis for the Safe Shutdown
Earthquake or high winds hazards
including missiles. The NEI 12–06
guidelines also allow storage of the
equipment above the flood elevation
from the most recent site flood analysis,
storage within a structure designed to
protect the equipment from the flood, or
storage below the flood level if
sufficient time would be available and
plant procedures would address the
need to relocate the equipment above
the flood level based on the timing of
the limiting flood scenario(s). The NEI
12–06 guidelines further provide that
multiple sets of equipment may be
stored in diverse locations in order to
provide assurance that sufficient
equipment would remain deployable to
assure the success of the strategies
following an initiating event. The NRCendorsed guidelines in NEI 12–06 do
not consider concurrent, unrelated
beyond-design-basis external events to
be within the scope of the initiating
events for the mitigating strategies.
There is an assumption of a beyonddesign-basis external event that
establishes the event conditions for
reasonable protection, and then it is
assumed that the event leads to an ELAP
and LUHS. But, for example, there is not
an assumption of multiple beyonddesign-basis external events occurring at
the same time. As a result, reasonable
protection for the purposes of
compliance with Order EA–12–049
would allow the provision of specific
sets of equipment for specific hazards
with the required protection for those
sets of equipment being against the
hazard for which the equipment is
intended to be used.
The NRC proposes to continue the use
of the phrase ‘‘reasonable protection’’ in
proposed § 50.155(c)(2) in order to
distinguish the character of the required
protection of GDC–2, which requires
that SSCs important to safety be
designed to withstand the effects of
natural phenomena, from that of
proposed § 50.155(c)(2), which would
allow damage to or loss of specific
pieces of equipment so long as the
capability to use some of the equipment
to accomplish its intended purpose is
retained. ‘‘Reasonable protection’’
would also allow for protection of the
equipment using structures that could
deform as a result of natural phenomena
so long as the equipment could be
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deployed from the structure to its place
of use.
The remaining portion of proposed
§ 50.155(c)(2) would set the hazard level
for which ‘‘reasonable protection’’ of the
equipment must be provided. The
hazard level would be the level
determined for the design basis for the
facility for protection of safety-related
SSCs from the effects of natural
phenomena, or, for the seismic or
flooding hazards, the greater of the
hazard level determined for the design
basis for the facility and the licensee’s
reevaluated hazards, stemming from the
March 12, 2012, NRC letter issued under
§ 50.54(f). The timing for the proposed
requirement for reasonable protection
against the reevaluated hazards is set by
§ 50.155(g) at 2 years following the
effective date of this proposed rule.
Operating power reactor licensees that
were requested to reevaluate their
seismic and flooding hazard levels by
the NRC by letter dated March 12, 2012,
under 10 CFR 50.54(f) are currently on
a submittal and NRC review schedule to
have confirmation of the reevaluated
hazard levels by December 2015. Given
that the rulemaking schedule for this
proposed rule is to provide the final rule
to the Commission in December 2016,
the anticipated effective date of the final
rule would be mid-to-late 2017.
Requiring compliance within 2 years
following the effective date of the final
rule would allow licensees with a new
hazard level the opportunity to take
measurements to support any necessary
plant modifications during the first
refueling outage following NRC
confirmation of those levels and the
opportunity to implement those
modifications in a subsequent refueling
outage after the effective date of the
rule. The NRC is requesting feedback on
this proposed implementation schedule
in section VI of this notice.
Proposed paragraph (c)(3) would
require that licensees perform adequate
maintenance on the equipment relied on
for the mitigation strategies responsive
to proposed paragraph (b)(1) to assure
that the equipment is capable of
fulfilling its intended function following
a beyond-design-basis external event.
The phrase ‘‘adequate maintenance’’
means sufficient routine maintenance
and testing are performed, reflecting the
storage and readiness conditions of the
equipment, for a licensee to conclude
that the equipment is capable of
performing its function to a degree that
would support the successful execution
of the mitigation strategies of paragraph
(b)(1). Provision of ‘‘adequate
maintenance’’ also entails the
establishment of a system of
programmatic controls for the
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equipment to limit the quantity of
equipment taken out of service for
maintenance and testing in order to
limit the unavailability of that
equipment appropriately and to provide
assurance that sufficient equipment
would remain available to satisfy
proposed paragraph (c)(1).
Proposed paragraph (c)(4) would
make generically applicable the
requirements of Order EA–12–051 by
requiring that licensees include a
reliable means to remotely monitor
wide-range spent fuel pool levels to
support effective prioritization of event
mitigation and recovery actions.
Proposed § 50.155(d) Training
Requirements
Proposed § 50.155(d) would require
that each licensee specified in
§ 50.155(a) provide for the training and
qualification of personnel that perform
activities in accordance with the
strategies and guidelines identified in
§ 50.155(b)(1) and (2).
Proposed § 50.155(e) Drills and
Exercises
Proposed § 50.155(e) would require
that each licensee and applicant
specified in § 50.155(a) conduct drills
and exercises for personnel that would
perform activities in accordance with
the strategies and guidelines identified
in § 50.155(b)(1) and (2). The use of
drills and exercises allows
demonstration and evaluation of the
licensee’s capability to execute the
integrated response capability required
by § 50.155(b) mitigation strategies and
guidelines in light of the specific plant
damage and operational conditions
presented by an initiating event.
‘‘Integrated’’ is used to describe the
licensee’s or applicant’s approach to
using all tools, spaces, qualified
personnel and resources during a
performance enhancing experience to
the furthest extent practical given a set
of initiating conditions and within the
bounds of a drill or exercise scenario.
When two or more strategies or
guidelines in § 50.155(b)(1) and (2) are
potentially useful, ‘‘integrated’’ is meant
that transitions to and from one set of
strategies or guidelines in § 50.155(b)(1)
and (2) to another are coordinated.
This proposed rule uses the words
‘‘drill’’ and ‘‘exercise’’ as they are
defined in NUREG–0654/FEMA–REP–1,
Revision 1,9 meaning an evaluated
performance-enhancing experience that
reasonably simulates the interactions
between appropriate centers, work
groups, strike teams, or individuals that
would be expected to occur during the
9 Planning
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event. For the initial drill or exercise,
the licensee would be required to
demonstrate its capability to transition
to and use one or more of the strategies
that would be required by § 50.155(b)(1)
and (2) from the AOPs or EOPs,
whichever would govern for the
initiating event and plant degraded
conditions, using the equipment and
communication systems used for the
EOPs and guidelines.
Proposed § 50.155(e)(1) would require
the initial drill or exercise to be
conducted within 12 months prior to
the issuance of the first operating
license (OL) for the unit described in the
application. This would allow the
license applicant to implement any
improvements or corrective actions
identified during the drill or exercise,
and allow the Commission to consider
the results of any drill or exercise
actions in the decision on whether to
authorize the OL. Because § 50.155(e)(1)
applies only to applicants for operating
licenses, it would not apply to holders
of operating licenses under 10 CFR part
50, who are subject to proposed
§ 50.155(e)(4), or holders of combined
licenses under 10 CFR part 52, who are
subject to proposed § 50.155(e)(2)
through (4). Following issuance of the
operating license, the applicant, as a
licensee, would be subject to proposed
§ 50.155(e)(3).
Proposed § 50.155(e)(2) would require
the licensee to conduct an initial drill or
exercise that demonstrates the
capability to transition from the AOPs
or EOPs, use one or more of the
strategies and guidelines in paragraphs
(b)(1) and (2) of this section, and use
communications equipment required in
10 CFR part 50, appendix E, section VII,
no more than 12 months before the date
specified for completion of the last
inspections, tests, and analyses in the
inspections, tests, analyses, and
acceptance criteria (ITAAC) completion
schedule as required by § 52.99(a) for
the unit described in the combined
license.
This proposed rule would set the
completion date for the initial drill or
exercise at ‘‘no more than 12 months
before the date specified for completion
of the last inspections, tests, and
analyses in the ITAAC completion
schedule required by § 52.99(a) for the
unit described in the combined license’’
in order to allow the licensee to
implement any improvements or
corrective actions identified during the
drill or exercise, and allow the
Commission to consider the results of
any drill or exercise actions.
The proposed § 50.155(e)(2)
requirement for initial drills or exercises
is limited to holders of combined
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licenses under 10 CFR part 52 before the
Commission has made the finding under
§ 52.103(g). A combined license holder
for whom the Commission has already
made the finding under § 52.103(g) as of
the effective date of the rule would not
be subject to proposed § 50.155(e)(2),
but would instead be subject to
§ 50.155(e)(4) for the proposed initial
drill requirements.
Proposed § 50.155(e)(3) would require
holders of operating power reactor
licenses issued under 10 CFR part 50
subsequent to the effective date of this
rule, and holders of combine licenses
issued under 10 CFR part 52 for whom
the Commission has made the finding
under § 52.103(g) subsequent to the
effective date of this rule, to conduct
subsequent drills, exercises, or both that
collectively demonstrate a capability to
use at least one of the strategies and
guidelines in each of proposed
§ 50.155(b)(1) and (2) in succeeding 8year intervals. This would require that
the drills and exercises performed to
demonstrate this capability include
transitions from other procedures and
guidelines, as applicable, and the use of
communications equipment that would
be required by proposed 10 CFR part 50,
appendix E, section VII. This proposed
requirement differs from the proposed
§ 50.155(e)(1) and (2) initial
demonstration requirement, in that it
would require licensees to demonstrate
a continuing capability, and as such, it
is structured to require licensees to
demonstrate at least one of the strategies
and guidelines from each of the
guidelines during the 8-year interval.
Proposed § 50.155(e)(4) would require
holders of operating licenses or
combined licenses for which the
Commission has made the finding under
§ 52.103(g) to conduct an initial drill or
exercise that demonstrates the
capability to transition to and use one
or more of the strategies and guidelines
in proposed § 50.155(b)(1) and (2) and
use communications equipment
required in 10 CFR part 50, appendix E,
section VII. Proposed § 50.155(e)(4)
would be equivalent to proposed
§ 50.155(e)(1) and (2) for initial drills or
exercises, but would apply to current
licensees. Following this initial drill or
exercise, the licensee would be required
to conduct subsequent drills, exercises,
or both that collectively demonstrate a
capability to use at least one of the
strategies and guidelines in each of
proposed § 50.155(b)(1) and (2) in
succeeding 8-year intervals. Proposed
§ 50.155(e)(4) would be equivalent to
proposed § 50.155(e)(3) for subsequent
drills or exercises, but would apply to
current licensees under 10 CFR part 50
and those under 10 CFR part 52 for
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whom the Commission has made the
finding under § 52.103(g) as of the
effective date of the rule.
Proposed § 50.155(f) Change Control
Proposed § 50.155(f) would establish
requirements that govern changes in the
implementation of the requirements of
proposed § 50.155 and 10 CFR part 50,
appendix E, section VII. Prior to
implementing a proposed change,
proposed § 50.155(f)(1) would require
the licensee to perform an evaluation to
ensure that the provisions of proposed
§ 50.155 and 10 CFR part 50, appendix
E, section VII, continue to be met.
Proposed § 50.155(f)(2) would require
that licensees maintain documentation
of the paragraph (f)(1) evaluations until
the requirements of this proposed
§ 50.155 and 10 CFR part 50, appendix
E, section VII, no longer apply. Finally,
proposed § 50.155(f)(3) would inform
licensees that proposed changes must
continue to be subject to all other
applicable change control processes.
Proposed § 50.155(g) Implementation
Proposed § 50.155(g) would set
schedules for compliance for different
classes of licensees depending on the
circumstances unique to each class.
Paragraphs (g)(1) and (2) would require
licensees of operating reactors to
comply with all requirements within 2
years of the effective date of the rule.
Proposed 10 CFR Part 50, Appendix E,
Section I, Introduction
The NRC proposes adding the
sentence, ‘‘Section VII of this appendix
also provides for ‘Communications and
Staffing Requirements for the Mitigation
of Beyond-Design-Basis Events’ that do
not need to be contained within a
licensee’s emergency plan’’ to the end of
paragraph I.2. The NRC is not proposing
to require an applicant or licensee to
address or implement the proposed
requirements in Section VII of
Appendix E through the applicant’s or
licensee’s emergency plan or to
maintain the capabilities as a part of the
emergency preparedness program. This
would allow for site-specific flexibility
in implementation.
Proposed 10 CFR Part 50, Appendix E,
Section IV.B, Assessment Actions
The NRC proposes adding the phrase,
‘‘including from all reactor core and
spent fuel pool sources,’’ into paragraph
B.1 following ‘‘determining the
magnitude of, and for continually
assessing the impact of, the releases of
radioactive materials.’’ This proposed
rule would require all licensees to
establish the capability to perform
offsite dose assessments during an event
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70635
involving concurrent radiological
releases from all on-site units and spent
fuel pools, and for multiple release
points. The capability would quantify
the total releases from the site and
estimate the offsite dose consequences.
Proposed 10 CFR Part 50, Appendix E,
Section IV.E, Emergency Facilities and
Equipment
The NRC proposes adding the phrase,
‘‘including from all reactor core and
spent fuel pool sources,’’ into paragraph
E.2 following ‘‘equipment for
determining the magnitude of, and for
continuously assessing the impact of,
the release of radioactive materials to
the environment.’’ This proposed rule
would require that equipment used for
multi-unit dose assessment be
maintained in a ready state.
Proposed 10 CFR Part 50, Appendix E,
Section IV, Training
This proposed rule would move the
§ 50.54(hh)(2) exercise requirement from
10 CFR part 50, appendix E, section
IV.F.2.j, to § 50.155(e). This move would
change the exercise requirement to a
drill requirement, aligning the
requirement with the mitigation
strategies drill requirements described
in § 50.155(e).
This proposed rule would also require
that periodic opportunities for a
performance-enhancing experience
should be provided to personnel
responsible for performing multiple
source term dose assessment and
assessing the results in accordance with
the site’s emergency plan and
implementing procedures.
Proposed 10 CFR Part 50, Appendix E,
Section VI, Emergency Response Data
Systems
The NRC proposes to change its
Emergency Response Data Systems
regulations to require the use of
technology-neutral equipment. The NRC
proposes to restate the requirements in
paragraph 3.c to replace the phrase
‘‘onsite modem’’ with ‘‘equipment’’ and
removing references to a specific ‘‘unit’’
or equipment use.
Proposed 10 CFR Part 50, Appendix E,
Section VII, Communications and
Staffing Requirements for the Mitigation
of Beyond-Design-Basis Events
Proposed section VII would require
power reactor applicants and licensees
to conduct a detailed analysis to provide
the basis for the staffing necessary for
responding to a beyond-design-basis
external event as described in
§ 50.155(b)(1) during an extended loss of
ac power (ELAP), and while access to
the plant and normal access to the
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ultimate or normal heat sink are lost.
Additionally, the proposed section VII
would require power reactor applicants
and licensees to maintain at least one
onsite and one offsite communications
system functional during an ELAP and
a loss of the local communication
infrastructure.
The current rule in 10 CFR part 50,
appendix E, section IV.E.9, requires, ‘‘At
least one onsite and one offsite
communication system; each system
shall have a backup power source.’’
However, the current rule doesn’t
address an interruption in the offsite
communication services. This proposed
rule would require the power reactor
applicants and licensees to maintain the
communication capabilities of
communication amongst onsite staff and
between onsite staff and offsite
personnel in light of the lessons learned
at Fukushima Dai-ichi. Furthermore,
this proposed rule would require the
power reactor applicants and licensees
to submit the staffing analysis, results
and implementation plans to meet the
requirements, and the submissions
would afford the NRC the opportunity
to identify any common industry
implementation problems and address
them in guidance.
This proposed rule would require an
applicant for an operating license to
complete a detailed staffing analysis at
least 2 years before the issuance of the
first operating license for full power
(one authorizing operation above 5
percent of rated thermal power). The
time frame allows the applicant to
implement any improvements or
corrective actions identified during the
analysis, and the results of any analysis
to inform the Commission’s decision in
authorizing the operating license.
This proposed rule would require that
an applicant for a combined license
conduct a detailed staffing analysis and
submit the analysis and results to the
NRC 2 years before the date specified for
completion of the last inspections, tests,
and analyses in the ITAAC completion
schedule required by § 52.99(a) for the
unit described in the combined license.
The time frame allows the applicant to
implement any staffing and
communications system improvements
and corrective actions identified during
the analysis.
This proposed rule would provide
that when the NRC has docketed the
certifications described in § 50.82(a)(1)
or § 52.110(a) for a power reactor
licensee, then that licensee would no
longer be subject to section VII of
appendix E to 10 CFR part 50 for the
unit described in the § 50.82(a)(1) or
§ 52.110(a) certifications.
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Proposed § 52.80 Contents of
Applications; Additional Technical
Information
Section 52.80 identifies the required
additional technical information to be
included in an application for a
combined license. Proposed paragraph
(d) would be amended to require a
combined license applicant to include
the applicant’s plans for implementing
the requirements of proposed § 50.155
and 10 CFR part 50, appendix E, section
VII, including a schedule for achieving
full compliance with these
requirements. This paragraph would
also require the application to include a
description of: (1) The integrated
response capability that would be
required by proposed § 50.155(b); (2) the
equipment upon which the strategies
and guidelines that would be required
by proposed § 50.155(b)(1) rely,
including the planned locations of the
equipment and how the equipment and
SSCs would meet the design
requirements of proposed § 50.155(c);
and (3) the strategies and guidelines that
would be required by proposed
§ 50.155(b)(2).
VI. Specific Requests for Comments
The NRC is seeking advice and
recommendations from the public on
this proposed rule. We are particularly
interested in comments and supporting
rationale from the public on the
following:
1. Change Control. The provisions
governing change control in proposed
§ 50.155(f) do not contain a criterion or
a set of criteria that would establish a
threshold beyond which prior NRC
review and approval would be
necessary to support a proposed change
to the facility impacting the beyonddesign-basis aspects of this proposed
rulemaking and its supporting
implementation guidance. For example,
a set of criteria that asks whether a
proposed facility change adversely
impacts the capability to maintain and
restore core cooling, containment, and
spent fuel pool cooling capabilities, in
conjunction with a criterion that asks
whether the proposed facility change
adversely impacts the supporting
equipment requirements in proposed
paragraph (c) might be sufficient for
judging whether changes to the facility
that impact the implementation of the
mitigation strategies of proposed (b)(1)
require prior NRC review and approval.
What are stakeholders’ views on this
proposed change control structure, and
what do stakeholders suggest for
revising the change control process to
contain criteria for determining the need
for prior NRC review and approval?
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2. Application of Other Change
Control Processes. Proposed
§ 50.155(f)(3) contains a requirement for
licensees to use all applicable change
control processes for facility changes,
and not simply apply proposed
paragraph (f) (i.e., the proposed change
control process of paragraph (f) is only
applicable to facility changes with
respect to their beyond-design-basis
aspects and to the extent that such
changes impact implementation of the
requirements of proposed § 50.155 or
the proposed 10 CFR part 50, appendix
E, section VII) to the exclusion of other
change control processes. This
recognizes that facility changes can
impact multiple aspects of the plant
having different applicable
requirements, and being subject to
different change control requirements.
For example, a licensee may want to
make a facility change (e.g., a physical
connection device) to support
implementation of the beyond-designbasis external event mitigation
strategies, and this change might impact
safety-related SSCs. In addition to
applying the new change control
provision to ensure beyond-design-basis
aspects of the proposed change result in
continued compliance with the new
requirements of this proposed rule, the
licensee would also need to apply 10
CFR 50.59 to ensure that the facility
change does not, due to its impact on
safety-related SSCs, require prior NRC
approval. The NRC requests feedback on
the need for this proposed provision, or
suggestions on how it might be
improved.
3. Reasonable Protection. This
proposed rule contains a requirement in
proposed § 50.155(c)(2) that equipment
supporting the proposed mitigation
requirements of paragraph (b)(1) be
‘‘reasonably protected’’ from the effects
of natural phenomenon including both
those in the current plant design basis
as well as the reevaluated hazards under
the March 12, 2012, § 50.54(f) request
concerning flooding and seismic
hazards. As a practical matter,
implementation of Order EA–12–049
began before the reevaluated hazard
information was available. The NRC
recognizes that licensees were mindful
of the hazard information, and
attempted to address it during
implementation. The NRC requests
feedback concerning any costs and
impacts that licensees would expect to
occur as a result of this proposed
requirement to include such things as
rework or changes to previously
implemented mitigation strategies.
4. Mitigation of Beyond-Design-Basis
Events Staffing Analysis. Proposed 10
CFR part 50, appendix E, section VII,
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would require an analysis for the
staffing necessary to support mitigation
of a beyond-design-basis external event.
This requirement would supplement the
separate staffing analysis requirement
that already exists in 10 CFR part 50,
appendix E, section IV.A.9. The reason
for the two separate staffing analysis
requirements is related to the historical
imposition of the requirements for the
staffing analyses in the emergency
preparedness rulemaking of 2011 and
the March 12, 2012, Request for
Information under 10 CFR 50.54(f). The
NRC is seeking feedback on whether it
would be more efficient in practice for
the two staffing analyses and their
corresponding requirements to be
combined, particularly for future reactor
applicants. Would there be any
unintended consequences to keeping
the analyses separate or combining
them? Is there a better way of achieving
the underlying purpose of this
requirement?
5. Training Requirements. Section
50.155(d) of this proposed rule would
require licensees to provide for the
training and qualification of personnel
that perform activities in accordance
with the strategies and guidelines
identified in paragraphs (b)(1) and (2)
(i.e., mitigation strategies for beyonddesign-basis external events and
extensive damage mitigation guidelines)
using the SAT process as defined in
§ 55.4. The NRC notes that whereas
many individuals at licensee facilities
that would be subject to this proposed
rule are trained under the SAT process
(e.g., individuals specified under
§ 50.120), some individuals (e.g.,
firefighting and emergency
preparedness personnel) may be
currently trained under programs that
are not required by NRC regulation to
use the SAT process (e.g., National Fire
Protection Association standards for
training and 10 CFR part 50, appendix
E). It is not the NRC’s intent to extend
the requirement for SAT-based training
to the entirety of such programs. Rather,
the intent of the proposed requirement
would be to ensure that any training
that is not currently part of existing
programs but would be needed for
performing activities in accordance with
the strategies and guidelines identified
in paragraphs proposed § 50.155(b)(1)
and (2) be identified and provided for in
accordance with the SAT process. The
NRC requests comment on potential
unintended consequences of the
proposed rule language for programs not
currently required to be SAT-based and
if unintended consequences are
identified, proposed alternative
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language for requiring the necessary
amendments to such programs.
6. Drill or Exercise Frequency.
Proposed § 50.155(e)(3) and (4) would
require that following an initial drill or
exercise, licensees would be required to
conduct subsequent drills, exercises, or
both, that collectively demonstrate a
capability to use at least one of the
strategies and guidelines in each of
proposed § 50.155(b)(1) and (2) in
succeeding 8-year intervals. This would
require that the drills or exercises
performed to demonstrate this
capability include transitions from other
procedures and guidelines as
applicable, and the use of
communications equipment that would
be required by proposed 10 CFR part 50,
appendix E, section VII, and that
licensees shall not exceed 8 years
between any consecutive drills or
exercises. These requirements would be
separate from the 8-year emergency
preparedness exercise cycle
requirements in 10 CFR part 50,
appendix E, section IV.F. The NRC is
seeking feedback on whether the drill or
exercise frequency proposed by
§ 50.155(e)(3) and (4) is appropriate.
7. Equipment Requirements. Proposed
§ 50.155(c)(1) would require the
capacity and capability of the
equipment relied on for the mitigation
strategies required by proposed § 50.155
(b)(1) to be sufficient to simultaneously
maintain or restore core cooling,
containment, and spent fuel pool
cooling capabilities for all the power
reactor units within the site boundary.
Additionally, proposed § 50.155(c)(3)
would require the equipment relied on
for the mitigation strategies in proposed
§ 50.155(b)(1) to receive adequate
maintenance such that the equipment is
capable of fulfilling its intended
function. The intent of these two
proposed provisions is to make
elements of Order EA–12–049
generically-applicable. Order EA–12–
049 did not contain a specific
maintenance requirement, but instead
contained a performance-based
requirement ‘‘to develop, implement
and maintain strategies,’’ and failure to
perform adequate maintenance would
likely lead to a failure to meet this more
general requirement, which is also
contained in proposed § 50.155(b)(1).
Additionally, the supporting guidance
for this proposed rule for proposed
§ 50.155(b)(1) carries forward the same
approach that was used for
implementation of Order EA–12–049,
and contains a number of programmatic
controls that in an analogous fashion to
the maintenance provision in proposed
§ 50.155(c)(3), if not followed, would
likely lead to a loss of equipment
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70637
capacity and capability and result in a
failure to comply with the proposed
§ 50.155(b)(1). Therefore, the NRC
would like stakeholder views on the
need for a separate maintenance
provision.
8. Equipment Protection
Implementation Deadline. The NRC is
proposing to require licensees to
reasonably protect the equipment relied
upon to implement the mitigation
strategies required by proposed
§ 50.155(b)(1). That equipment would
need to be reasonably protected from
the effects of natural phenomena that
are, at a minimum, equivalent to the
design basis of the facility. This
proposed rule would require each
licensee that received the March 12,
2012, NRC letter issued under § 50.54(f)
to provide reasonable protection against
that reevaluated seismic or flooding
hazard(s) by 2 years following the
effective date of the final rule, if the
reevaluated hazard exceeds the design
basis of its facility. This is based on the
anticipated completion dates for the
licensees’ hazard reevaluations and
their confirmation by the NRC and the
potential need for planning and
implementing modifications during
refueling outages. The NRC recognizes
that certain licensees may need input
into their analyses of reevaluated
hazards from other government
agencies, without any certainty of when
that input would be provided. This
reliance on information from other
entities could remove from the
licensee’s control the ability to comply
with the rule by a specific date. The
NRC requests comments on the
proposed implementation schedule,
including suggestions for the criteria
that licensees would need to satisfy to
extend the schedule.
9. Methodology for addressing
reevaluated hazards. In SRM–
COMSECY–14–0037, the Commission
affirmed that: (1) Licensees for operating
nuclear power plants need to address
the reevaluated flooding hazards within
their mitigating strategies for beyonddesign-basis external events; and (2)
licensees for operating nuclear power
plants may need to address some
specific flooding scenarios that could
significantly damage the power plant
site by developing targeted or scenariospecific mitigating strategies, possibly
including unconventional measures, to
prevent fuel damage in reactor cores or
spent fuel pools. The NRC is proposing
to require licensees for operating
nuclear power plants to address the
reevaluated flooding hazard levels by
reasonably protecting the mitigating
strategies equipment to those levels if
they exceed the design-basis flood level
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for the facility. Alternatively, the NRC
could: (1) Place this requirement within
§ 50.155(b)(1) as a condition the
associated strategies and guidelines
must be capable of addressing; or (2)
include a separate requirement for
targeted or scenario-specific mitigating
strategies as an option to address the
reevaluated flooding hazards. The NRC
seeks comment on whether the first of
these options would be a better means
to communicate the need for a licensee’s
strategies and guidelines to be capable
of execution in the context of the new
flooding hazard levels than including
the requirement in § 50.155(c)(2). The
NRC seeks additional comment on
whether it would be appropriate to
allow further flexibility in the licensee’s
strategies and guidelines by establishing
an alternative means of compliance that
does not include the surrogate condition
of a loss of all alternating current power
for specific beyond-design-basis
conditions such as the reevaluated
flooding hazards. For example, if a
licensee could protect their internal
power distribution system and
emergency diesel generators from the
reevaluated flooding hazard, it may not
be necessary for the licensee to assume
the loss of all alternating current power.
10. Command and Control.
Requirements for command and control
and organizational structures currently
exist in numerous locations, including
10 CFR part 50, appendix E, section
IV.A, as well as within the typical
administrative controls portions of
technical specifications for power
reactor licensees. These requirements do
not plainly limit the scope of the roles,
responsibilities and authorities to events
within the design or licensing basis of
the facility, although past NRC practice
has been to treat these requirements in
that manner. This proposed rule
includes a further requirement on the
subject in order to clarify the scope of
what is required for organizational
structures at power reactor licensees.
Alternatively, the NRC is considering
whether the expansion of scope of
regulatory oversight of the
organizational structures would require
imposition of a new requirement or the
expansion of scope would be better
accomplished by communicating the
understanding that the scope of the
existing requirements covers the full
spectrum of events that would be
included in this rulemaking. The latter
method of accomplishing this would
have the potential advantage of leaving
the requirements for command and
control and organizational structures in
a single regulation (i.e., 10 CFR part 50,
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appendix E, section IV.A). The NRC
seeks stakeholder input on this subject.
VII. Regulatory Flexibility Certification
Under the Regulatory Flexibility Act
(5 U.S.C. 605(b)), the NRC certifies that
this rule would not, if promulgated,
have a significant economic impact on
a substantial number of small entities.
This proposed rule affects only the
licensing and operation of nuclear
power plants. The companies that own
these plants do not fall within the scope
of the definition of ‘‘small entities’’ set
forth in the Regulatory Flexibility Act or
established in 10 CFR 2.810, ‘‘NRC size
standards.’’
VIII. Availability of Regulatory
Analysis
The NRC has prepared a draft
regulatory analysis on this proposed
regulation. The analyses examine the
costs and benefits of the alternatives
considered by the NRC. The NRC
requests public comment on the draft
regulatory analysis. The draft regulatory
analysis is available as indicated in the
‘‘Availability of Documents’’ section of
this document. Comments on the draft
analysis may be submitted to the NRC
as indicated in the ADDRESSES section of
this document.
IX. Availability of Guidance
The NRC is issuing for comment draft
regulatory guidance (DG) to support the
implementation of the proposed
requirements in this rulemaking. You
may access information and comment
submissions related to the DGs by
searching on https://www.regulations.gov
under Docket ID NRC–2014–0240.
The DG–1301, ‘‘Flexible Mitigation
Strategies for Beyond-Design-Basis
Events,’’ provides licensees and
applicants with an acceptable method of
responding to an ELAP and
demonstrating compliance with the
proposed regulations requiring
additional defense-in-depth measures
for the mitigation of beyond-designbasis external events.
The DG–1317, ‘‘Wide-Range Spent
Fuel Pool Level Instrumentation,’’
describes one method of providing
safety enhancements in the form of
reliable spent fuel pool instrumentation
for beyond-design-basis external events.
The DG–1319, ‘‘Integrated Response
Capabilities for Beyond-Design-Basis
Events,’’ describes one method the NRC
endorses to enhance a site’s ability to
implement the on-site emergency
preparedness programs and guidelines
and better cope with conditions
resulting from a beyond-design-basis
external event.
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You may submit comments on the
draft regulatory guidance by the
following methods:
• Federal Rulemaking Web site: Go to
https://www.regulations.gov and search
for Docket ID NRC–2014–0240. Address
questions about NRC dockets to Carol
Gallagher; telephone: 301–415–3463;
email: Carol.Gallagher@nrc.gov.
• Mail comments to: Cindy Bladey,
Office of Administration, Mail Stop:
OWFN–12–H08, U.S. Nuclear
Regulatory Commission, Washington,
DC 20555–0001.
X. Backfitting and Issue Finality
Proposed Rule
As required by §§ 50.109, 52.63,
52.83, and 52.98, the Commission has
completed a backfit and issue finality
analysis for this proposed rule. The
Commission finds that the backfit
contained in this proposed rule, (i.e.,
multiple source term dose assessment),
is considered, as part of the set of
emergency preparedness (EP)
requirements, to provide continued
reasonable assurance of adequate
protection of public health and safety
under 10 CFR 50.109(a)(4)(ii), consistent
with the regulatory basis for EP that has
existed for more than three decades.
Availability of the backfit and issue
finality analysis is indicated in the
‘‘Availability of Documents’’ section of
this document.
Draft Regulatory Guidance
The NRC is issuing, for public
comment, three DGs that would support
implementation of this proposed rule:
DG–1301, ‘‘Flexible Mitigation
Strategies for Beyond-Design-Basis
Events’’; DG–1317, ‘‘Wide-Range Spent
Fuel Pool Level Instrumentation’’; and
DG–1319, ‘‘Integrated Response
Capabilities for Beyond-Design-Basis
Events.’’ These DGs would provide
guidance on the methods acceptable to
the NRC for complying with this
proposed rule. The DGs would apply to
all current holders of, and applicants for
operating licenses under 10 CFR part 50
and combined licenses under 10 CFR
part 52.
Issuance of the DGs in final form
would not constitute backfitting under
§ 50.109 and would not otherwise be
inconsistent with the issue finality
provisions in 10 CFR part 52. As
discussed in the ‘‘Implementation’’
section of each DG, the NRC has no
current intention to impose the DGs, if
finalized, on current holders of an
operating license or combined license.
Applying the DGs, if finalized, to
applications for operating licenses or
combined licenses would not constitute
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backfitting as defined in § 50.109 or be
otherwise inconsistent with the
applicable issue finality provisions in
10 CFR part 52, because such applicants
are not within the scope of entities
protected by § 50.109 or the applicable
issue finality provisions in 10 CFR part
52. Neither § 50.109 nor the issue
finality provisions under 10 CFR part
52—with certain exceptions—were
intended to apply to every NRC action
that substantially changes the
expectations of current and future
applicants.
XI. Cumulative Effects of Regulation
The NRC engaged extensively with
external stakeholders throughout this
rulemaking and related regulatory
activities. Public involvement has
included: (1) Issuance of two ANPRs
and two draft regulatory basis
documents that requested stakeholder
feedback; (2) issuance of conceptual and
preliminary proposed rule language in
support of public meetings; (3)
numerous public meetings with the
ACRS; and (4) many more public
meetings that supported both the
development of the draft regulatory
basis documents as well as development
of the implementing guidance for the
two orders that this rulemaking would
make generically applicable (i.e., Orders
EA–12–049 and EA–12–051). Section
II.E of this notice provides a more
detailed discussion of public
involvement.
The NRC is following its CER process
with regard to the issuance of draft
guidance with this proposed rule to
support more informed external
stakeholder feedback. The ‘‘Availability
of Guidance’’ section of this document
describes how the public can access the
draft guidance for which the NRC seeks
external stakeholder feedback.
Finally, the NRC is requesting CER
feedback on the following questions:
1. In light of the current or projected
CER challenges, does this proposed
rule’s compliance dates provide
sufficient time to implement the new
proposed requirements, including
changes to programs, procedures, and
the facility? Specifically, the current
proposed rule would require each
holder of an operating license or holder
of a combined license for which the
Commission made the finding specified
in § 52.103(g) to comply with all
provisions of this proposed rule no later
than 2 years following the effective date
of the rule, unless otherwise specified in
proposed 10 CFR part 50, appendix E,
section VII. The NRC requests feedback
on what this time period should be.
2. If current or projected CER
challenges exist, what should be done to
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address this situation? For example if
more time is required for
implementation of the new
requirements, what period of time
would be sufficient?
3. Do other NRC regulatory actions,
including the post-Fukushima actions
and any other actions (e.g., generic
communications, license amendment
requests, inspection findings of a
generic nature), influence the
implementation of this proposed rule’s
requirements?
4. Are there unintended consequences
associated with implementation of these
requirements, including implementing
the requirements as a priority over other
facility modifications that are currently
being prioritized and scheduled?
5. Please provide feedback on the
NRC’s supporting regulatory analysis for
this rulemaking. Of note, the regulatory
analysis estimates the cost of
implementing both Order EA–12–049
and Order EA–12–051. The NRC would
appreciate feedback regarding those
estimates.
cause any significant non-radiological
impacts, as it would not affect any
historic sites or any non-radiological
plant effluents. The NRC concludes that
this proposed rule would not cause any
significant radiological or nonradiological impacts on the human
environment.
The determination of this
environmental assessment is that there
would be no significant effect on the
quality of the human environment from
this action. Public stakeholders should
note, however, that comments on any
aspect of this environmental assessment
may be submitted to the NRC as
indicated in the ADDRESSES section of
this document. The environmental
assessment is available as indicated
under the ‘‘Availability of Documents’’
section.
The NRC has sent a copy of the
environmental assessment and this
proposed rule to every State Liaison
Officer and has requested comments.
XII. Plain Writing
The Plain Writing Act of 2010 (Pub.
L. 111–274) requires Federal agencies to
write documents in a clear, concise, and
well-organized manner. The NRC has
written this document to be consistent
with the Plain Writing Act as well as the
Presidential Memorandum, ‘‘Plain
Language in Government Writing,’’
published June 10, 1998 (63 FR 31883).
The NRC requests comment on this
document with respect to the clarity and
effectiveness of the language used.
This proposed rule contains new or
amended information collection
requirements that are subject to the
Paperwork Reduction Act of 1995 (44
U.S.C. 3501 et seq). This proposed rule
has been submitted to the OMB for
approval of the information collection
requirements.
Type of submission, new or revision:
Revision.
The title of the information collection:
Mitigation of Beyond-Design-Basis
Events Proposed Rule.
The form number if applicable: Not
applicable.
How often the collection is required:
Once.
Who will be required or asked to
report: Operating nuclear power reactor
sites (comprised of 65 operating sites).
An estimate of the number of annual
responses: 65 (65 recordkeepers).
The estimated number of annual
respondents: 65.
An estimate of the total number of
hours needed to complete the
requirement or request: 6500.
Abstract: In response to the Great East
Japan Earthquake of March 11, 2011, the
NRC is seeking to: (1) Make the
requirements in Order EA–12–049 and
Order EA–12–051 generically-applicable
giving consideration to lessons learned
from implementation of the orders; (2)
establish new requirements for an
integrated response capability; (3)
establish new requirements for actions
that are related to onsite emergency
response; and (4) address a number of
PRMs submitted following the March
2011 Fukushima Dai-ichi event.
XIII. Environmental Assessment and
Proposed Finding of No Significant
Environmental Impact
The Commission has determined
under the National Environmental
Policy Act of 1969, as amended, and the
Commission’s regulations in subpart A
of 10 CFR part 51, that this proposed
rule, if adopted, would not be a major
Federal action significantly affecting the
quality of the human environment, and
an environmental impact statement is
not required. The basis of this
determination reads as follows: The
proposed action would not result in any
radiological effluent impact as it would
not change any design basis structures,
systems, or components that function to
limit the release of radiological effluents
during or after an accident. This
proposed rule does not change the
standards and requirements for
radiological releases and effluents. None
of the revisions or additions in this
proposed rule would affect current
occupational or public radiation
exposure. The proposed rule would not
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XIV. Paperwork Reduction Act
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The NRC is seeking public comment
on the potential impact of the
information collections contained in
this proposed rule and on the following
issues:
1. Is the proposed information
collection necessary for the proper
performance of the functions of the
NRC, including whether the information
will have practical utility?
2. Is the estimate of burden accurate?
3. Is there a way to enhance the
quality, utility, and clarity of the
information to be collected?
4. How can the burden of the
information collection be minimized,
including the use of automated
collection techniques?
A copy of the OMB clearance package
and proposed rule is available in
ADAMS under Accession No.
ML15274A031 or may be viewed free of
charge at the NRC’s PDR, One White
Flint North, 11555 Rockville Pike, Room
O–1 F21, Rockville, MD 20852. You
may obtain information and comment
submissions related to the OMB
clearance package by searching on
https://www.regulations.gov under
Docket ID NRC–2014–0240.
You may submit comments on any
aspect of these proposed information
collections, including suggestions for
reducing the burden and on the
previously stated issues, by the
following methods:
• Federal Rulemaking Web site: Go to
https://www.regulations.gov and search
for Docket ID NRC–2012–0059.
• Mail comments to: FOIA, Privacy,
and Information Collections Branch,
Office of Information Services, Mail
Stop: T–5 F53, U.S. Nuclear Regulatory
Commission, Washington, DC 20555–
0001 or to Vlad Dorjets, Desk Officer,
Office of Information and Regulatory
Affairs (3150–0011 and 3150–0151),
NEOB–10202, Office of Management
and Budget, Washington, DC 20503;
telephone: 202–395–7315, email: oira_
submission@omb.eop.gov.
Submit comments by December 14,
2015. Comments received after this date
will be considered if it is practical to do
so, but the NRC staff is able to ensure
consideration only for comments
received on or before this date.
that is consistent with a particular
State’s administrative procedure laws,
but does not confer regulatory authority
on the State.
Public Protection Notification
The NRC may not conduct or sponsor,
and a person is not required to respond
to, a request for information or an
information collection requirement
unless the requesting document
displays a currently valid OMB control
number.
XVIII. Voluntary Consensus Standards
XV. Criminal Penalties
For the purposes of Section 223 of the
Atomic Energy Act of 1954, as amended
(AEA), the NRC is issuing this proposed
rule that would amend 10 CFR parts 50
and 52 under one or more of Sections
161b, 161i, or 161o of the AEA. Willful
violations of the rule would be subject
to criminal enforcement. Criminal
penalties as they apply to regulations in
10 CFR parts 50 and 52 are discussed in
§§ 50.111 and 52.303.
XVI. Coordination with NRC
Agreement States
The Agreement States are receiving
notification of the publication of this
proposed rule.
XVII. Compatibility of Agreement State
Regulations
Under the ‘‘Policy Statement on
Adequacy and Compatibility of
Agreement State Programs,’’ approved
by the Commission on June 20, 1997,
and published in the Federal Register
(62 FR 46517; September 3, 1997), this
proposed rule is classified as
compatibility category ‘‘NRC.’’
Compatibility is not required for
Category ‘‘NRC’’ regulations. The NRC
program elements in this category are
those that relate directly to areas of
regulation reserved to the NRC by the
AEA or the provisions of title 10 of the
Code of Federal Regulations, and
although an Agreement State may not
adopt program elements reserved to the
NRC, it may wish to inform its licensees
of certain requirements via a mechanism
The National Technology Transfer
and Advancement Act of 1995, Public
Law 104–113, requires that Federal
agencies use technical standards that are
developed or adopted by voluntary
consensus standards bodies unless the
use of such a standard is inconsistent
with applicable law or otherwise
impractical. In this proposed rule, the
NRC would add requirements for the
mitigation of beyond-design-basis
events. This action does not constitute
the establishment of a standard that
contains generally applicable
requirements.
XIX. Public Meeting
The NRC will conduct a public
meeting on this proposed rule for the
purpose of describing the proposed rule
to the public and answering questions
from the public on the proposed rule.
The NRC will publish a notice of the
location, time, and agenda for the
meeting on the NRC’s public meeting
Web site within at least 10 calendar
days before the meeting. Stakeholders
should monitor the NRC’s public
meeting Web site for information about
the public meeting at: https://
www.nrc.gov/public-involve/publicmeetings/index.cfm. The meeting notice
will also be added to the Federal
rulemaking Web site at https://
www.regulations.gov under Docket ID
NRC–2014–0240. See the ‘‘Availability
of Documents’’ section of this document
for instructions on how to subscribe to
a docket on the Federal rulemaking Web
site.
XX. Availability of Documents
The documents identified in the
following table are available to
interested persons through one or more
of the following methods, as indicated.
ADAMS accession No./web
link/Federal Register citation
Document
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Primary Rulemaking Documents
Draft Regulatory Analysis and Backfit and Issue Finality Analysis ...............................................................................
Environmental Assessment ...........................................................................................................................................
ML15265A610
ML15260B014
Draft Regulatory Guides
DG–1301, Flexible Mitigation Strategies for Beyond-Design-Basis Events ..................................................................
DG–1317, Wide-Range Spent Fuel Pool Level Instrumentation ..................................................................................
DG–1319, Integrated Response Capabilities for Beyond-Design-Basis Events ...........................................................
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Other References
ACRS Transcript—Full Committee, Discuss Preliminary Mitigation of Beyond-Design-Basis Events Rulemaking
Language, December 4, 2014.
ACRS Transcript—Fukushima Subcommittee, Discuss Preliminary Mitigation of Beyond-Design-Basis Events
Rulemaking Language, November 21, 2014.
ACRS Transcript—Full Committee, Discuss Consolidation of Station Blackout Mitigation Strategies and Onsite
Emergency Response Capabilities Rulemakings, July 10, 2014.
ACRS Transcript—Full Committee, Discuss the Station Blackout Mitigation Strategies Regulatory Basis, June 5,
2013.
ACRS Transcript—Joint Fukushima and PRA Subcommittees, Discuss CPRR Technical Analysis, August 22,
2014.
ACRS Transcript—Plant Operations and Fire Protection Subcommittee, Discuss the Onsite Emergency Response
Capabilities Regulatory Basis, February 6, 2013.
ACRS Transcript—Reactor Safeguards Reliability and PRA Subcommittee, Discuss CPRR Technical Analysis,
November 19, 2014.
ACRS Transcript—Regulatory Policies and Practices Subcommittee, Discuss the Station Blackout Mitigation Strategies Regulatory Basis, December 5, 2013, and April 23, 2013.
American National Standards Institute/American Nuclear Society 3.2–2012, ‘‘Administrative Controls and Quality
Assurance for the Operational Phase of Nuclear Power Plants’’.
CLI–12–09, South Carolina Electric & Gas Co. and South Carolina Public Service Authority (Also Referred to as
Santee Cooper).
COMGBJ–11–0002, ‘‘NRC Actions Following the Events in Japan,’’ March, 21, 2011 ...............................................
COMSECY–13–0002, ‘‘Consolidation of Japan Lessons Learned Near-Term Task Force Recommendations 4 and
7 Regulatory Activities,’’ January 25, 2013.
COMSECY–13–0010, ‘‘Schedule and Plans for Tier 2 Order on Emergency Preparedness for Japan Lessons
Learned,’’ dated March 27, 2013.
COMSECY–14–0037, ‘‘Integration of Mitigating Strategies for Beyond-Design-Basis External Events and The Reevaluation of Flooding Hazards,’’ November 21, 2014.
Conceptual Consolidated Preliminary Proposed Rule Language for NTTF Recommendations 4, 7, 8 and 9, February 21, 2014.
Containment Performance and Release Reduction Draft Regulatory Basis ................................................................
Crystal River Unit 3, ‘‘NRC Response to Duke Energy’s Final Response to The March 2012 Request for Information Letter,’’ January 22, 2014.
Crystal River Unit 3, ‘‘Rescission of Order EA–12–049, ’Order Modifying Licenses with Regard to Requirements
for Mitigation Strategies for Beyond Design Basis External Events’,’’ August 27, 2013.
Crystal River Unit 3, Final Response to March 12, 2012 Information Request Regarding Recommendations 2.1,
2.3 and 9.3, September 25, 2013.
Crystal River Unit 3, ‘‘Rescission Of Order EA–12–051, ‘Order Modifying Licenses With Regard To Reliable Spent
Fuel Pool Instrumentation’,’’ August 27, 2013.
Federal Register Notice—Enhancements to Emergency Preparedness Regulations, Final Rule, November 23,
2011.
Federal Register Notice—Onsite Emergency Response Capabilities, Regulatory Basis, October 25, 2013 ..............
Federal Register Notice—Onsite Emergency Response ..............................................................................................
Capabilities, Advance Notice of Proposed Rulemaking, April 18, 2012 .......................................................................
Federal Register Notice—Onsite Emergency ResponseCapabilities, Draft Regulatory Basis, January 8, 2013 .........
Federal Register Notice—Onsite Emergency Response ..............................................................................................
Capabilities, Preliminary Proposed Rule Language, November 15, 2013 ....................................................................
Federal Register Notice—Power Reactor Security Requirements, Final Rule, March 27, 2009 .................................
Federal Register Notice—PRM–50–100, Petition for Rulemaking Submitted by the Natural Resources Defense
Council, Inc., July 23, 2013.
Federal Register Notice—PRM–50–101, Petition for Rulemaking Submitted by the Natural Resources Defense
Council, Inc., March 21, 2012.
Federal Register Notice—PRM–50–102, Petition for Rulemaking; Submitted by the Natural Resources Defense
Council, Inc., April 27, 2012.
Federal Register Notice—PRM–50–96, Long-Term Cooling and Unattended Water Makeup of Spent Fuel Pools,
Consideration in the Rulemaking Process, December 18, 2012.
Federal Register Notice—PRM–50–97, PRM–50–98, ..................................................................................................
PRM–50–99, PRM–50–100, PRM–50–101, PRM–50–102, Petitions for Rulemaking Submitted by the Natural Resources Defense Council, Inc., Notice of Receipt, September 20, 2011.
Federal Register Notice—Statement of Principles and Policy for the Agreement State Program; Policy Statement
on Adequacy and Compatibility of Agreement State Programs, Final Policy Statements, September 3, 1997.
Federal Register Notice—Station Blackout Mitigation Strategies, Draft Regulatory Basis and Draft Rule Concepts,
April 10, 2013.
Federal Register Notice—Station Blackout Mitigation Strategies, Regulatory Basis, July 23, 2013 ............................
Federal Register Notice—Station Blackout, Advance Notice of Proposed Rulemaking, March 20, 2012 ...................
Interim Staff Guidance, NSIR/DPR–ISG–01, ‘‘Emergency Planning for Nuclear Power Plants,’’ November 2011 .....
JLD–ISG–2012–01, ‘‘Compliance with Order EA–12–049, Order Modifying Licenses with Regard to Requirements
for Mitigation Strategies for Beyond-Design-Basis External Events,’’ Revision 0, August 29, 2012.
Inspection Manual Chapter (IMC) 0308, ‘‘Reactor Oversight Process Basis Document,’’ Attachment 2, ‘‘Technical
Basis for Inspection Program,’’ October, 16, 2006.
Kewaunee Power Station, 60-Day Response to March 12, 2012, Information Request Regarding Recommendation
2.1. Seismic Reevaluations, April 29, 2013.
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Kewaunee Power Station, Rescission of Order EA–12–049, ‘‘Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events,’’ June 10, 2014.
Kewaunee Power Station, Response to Request for Relief from Responding Further to the March 2012 Request
for Information Letter for Recommendation 9.3, January 22, 2014.
Letter from ACRS to Chairman Jaczko, ‘‘Initial ACRS Review of: (1) The NRC Near-Term Task Force Report on
Fukushima and (2) Staff’s Recommended Actions to be Taken Without Delay,’’ October 13, 2011.
Letter from ACRS to Mr. R. W. Borchardt, ‘‘Response To February 27, 2012 Letter Regarding Final Disposition Of
Fukushima-Related ACRS Recommendations In Letters Dated October 13, 2011, And November 8, 2011,’’
March 13, 2012.
Letter from R.W. Borchardt to J. Sam Amijo, Chairman ACRS, ‘‘Final Disposition Of The Advisory Committee On
Reactor Safeguards’ Review Of (1) The U.S. Nuclear Regulatory Commission Near–Term Task Force Report
On Fukushima, (2) Staff’s Recommended Actions To Be Taken Without Delay (SECY–11–0124), And (3) Staff’s
Prioritization Of Recommended Actions To Be Taken In Response To Fukushima Lessons–Learned,’’ February
27, 2012.
Letter from ACRS to Chairman Stephen G. Burns, ‘‘Draft SECY Paper Proposed Rulemaking: Mitigation of Beyond-Design-Basis Events (RIN 3150–AJ49),’’ April 22, 2015.
Letter from Mark Satorius to John Stetkar, ‘‘Draft SECY Paper Proposed Rulemaking: Mitigation of Beyond-Design-Basis Events (RIN 3150–AJ49),’’ May 15, 2015.
Letter from NEI to Mark Satorious, ‘‘Use of Qualitative Factors in Regulatory Decision Making,’’ May 11, 2015 ......
NEI 06–12, ‘‘B.5.b Phase 2&3 Submittal Guideline,’’ Revision 2, December 2006 .....................................................
NEI 10–05, ‘‘Assessment of On-Shift Emergency Response Organization Staffing and Capabilities,’’ Revision 0,
June 2011.
NEI 12–01, ‘‘Guideline for Assessing Beyond Design Basis Accident Response Staffing and Communications Capabilities,’’ Revision 0, May 2012.
NEI 12–06, ‘‘Diverse and Flexible Coping Strategies (FLEX) Implementation Guide,’’ Revision 1a, October 2015 ...
NEI 13–06, ‘‘Enhancements to Emergency Response Capabilities for Beyond Design Basis Accidents and
Events,’’ Revision 0, September 2014.
NEI 14–01, ‘‘Emergency Response Procedures and Guidelines for Beyond Design Basis Events and Severe Accidents,’’ Revision 0, September 2014.
NEI 91–04 (formerly NUMARC 91–04), Severe Accident Issue Closure Guidelines, Revision 1, December 1994 ....
Non-concurrence NCP–2015–003 .................................................................................................................................
NUREG–0654/FEMA–REP–1, ‘‘Criteria for Preparation and Evaluation of Radiological Emergency Response
Plans and Preparedness in Support of Nuclear Power Plants,’’ Revision 1, November 1980.
NUREG–0660, Volume1 and 2, ‘‘NRC Action Plan Developed as a Result of the TMI–2 Accident,’’ May 1980 ........
NUREG–0711, ‘‘Human Factors Engineering Program Review Model,’’ Revision 3, November 2012 .......................
NUREG–0737, ‘‘Clarification of TMI Action Plan Requirements,’’ November 1980 .....................................................
NUREG–0737, ‘‘Clarification of TMI Action Plan Requirements,’’ Supplement 1, November 1980 .............................
NUREG–1935, ‘‘State-of-the-Art Reactor Consequence Analyses (SOARCA) Report,’’ November 2012 ..................
Omaha Public Power District’s Overall Integrated Plan (Redacted) in Response to March 12, 2012, Order EA–12–
049, February 28, 2013.
Order EA–02–026, ‘‘Order for Interim Safeguards and Security Compensatory Measures,’’ February 25, 2002 .......
Order EA–12–049, ‘‘Issuance of Order to Modify Licenses With Regard to Requirements for Mitigation Strategies
for Beyond-Design-Basis External Events,’’ (Mitigating Strategies Order), March 12, 2012.
Order EA–12–051, ‘‘Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation’’ ...............
Preliminary Proposed Rule Language for Mitigation of Beyond-Design-Basis Events Rulemaking made available to
the public on November 13, 2014, and December 8, 2014, to support public discussion with the ACRS.
Preliminary Proposed Rule Language for Mitigation of Beyond-Design-Basis Events Rulemaking, August 15, 2014
PRM 50–102, ‘‘NRDC’s Petition For Rulemaking to Require More Realistic Training on Severe Accident Mitigation
Guidelines,’’ July 26, 2011.
PRM 50–97, ‘‘NRDC’s Petition For Rulemaking to Require Emergency Preparedness Enhancements for Prolonged Station Blackouts,’’ July 26, 2011.
PRM–50–100, ‘‘NRDC’s Petition For Rulemaking to Require Licensees to Improve Spent Nuclear Fuel Pool Safety,’’ July 26, 2014.
PRM–50–101, ‘‘NRDC’s Petition For Rulemaking to Revise 10 CFR § 50.63,’’ July 26, 2011 ....................................
PRM–50–96, ‘‘Petition for Rulemaking Submitted by Thomas Popik on Behalf of the Foundation for Resilient Societies to adopt regulations that would require facilities licensed by the NRC under 10 CFR Part 50 to assure
long-term cooling and unattended water makeup of spent fuel pools,’’ March 14, 2011.
PRM–50–98, ‘‘NRDC’s Petition For Rulemaking to Require Emergency Preparedness Enhancements for Multiunit
Events,’’ July 26, 2011.
Regulatory Issue Summary 2009–13, ‘‘Emergency Response Data System Upgrade from Modem to Virtual Private Network Appliance,’’ September 28, 2009.
Request for Information Pursuant to Title 10 of the Code of Federal Regulations 50.54(f) Regarding Recommendations 2.1, 2.3, and 9.3, of the Near-Term Task Force Review of Insights from the Fukushima Dai-Ichi
Accident, March 12, 2012.
Severe Accident Management Guidance Technical Basis Report, Volume 1: Candidate High-Level Actions and
Their Effects. EPRI, Palo Alto, CA: 2012. 1025295.
Severe Accident Management Guidance Technical Basis Report, Volume 2: The Physics of Accident Progression.
EPRI, Palo Alto, CA: 2012. 1025295.
San Onofre Nuclear Generating Station Units 2 and 3, ‘‘Rescission of Order EA–12–049, ’Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events’,’’ June
30, 2014.
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ADAMS accession No./web
link/Federal Register citation
Document
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San Onofre Nuclear Generating Station Units 2 and 3, ‘‘NRC Response To Southern California Edison’s Final Response to the March 2012 Request for Information Letter,’’ January 22, 2014.
San Onofre Nuclear Generating Station Units 2 and 3, Final Response to the March 12, 2012 Information Request
Regarding Near-Term Task Force Recommendations 2.1, 2.3, and 9.3 and Corresponding Commitments San
Onofre Nuclear Generating Station (SONGS) Units 2 and 3, September 30, 2013.
San Onofre Nuclear Generating Station Units 2 and 3, ‘‘Rescission of Order EA–12–051, ‘Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation’,’’ June 30, 2014.
SECY–11–0093, ‘‘Near-Term Report and Recommendations for Agency Actions Following the Events in Japan,’’
July 12, 2011.
SECY–11–0124, ‘‘Recommended Actions to be Taken Without Delay from the Near-Term Task Force Report,’’
September 9, 2011.
SECY–11–0137, ‘‘Prioritization of Recommended Actions to Be Taken in Response to Fukushima Lessons
Learned,’’ October 3, 2011.
SECY–12–0025, ‘‘Proposed Orders and Requests for Information in Response to Lessons Learned From Japan’s
¯
March 11, 2011, Great Tohoku Earthquake and Tsunami,’’ February 17, 2012.
SECY–13–0132, ‘‘Plan for Updating the U.S. Nuclear Regulatory Commission’s Cost Benefit Guidance,’’ January
2, 2014.
SECY–14–0046, ‘‘Fifth 6-Month Status Update on Response to Lessons Learned From Japan’s March 11, 2011,
Great Tohoku Earthquake and Subsequent Tsunami,’’ April 17, 2014.
SECY–15–0065, ‘‘Proposed Rulemaking: Mitigation of Beyond-Design-Basis Events (RIN 3150–AJ49),’’ April 30,
2015.
SECY–89–012, ‘‘Staff Plans for Accident Management Regulatory and Research Programs,’’ January 18, 1989 ....
SECY–97–132, ‘‘Status of the Integration Plan for Closure of Severe Accident Issues and the Status of Severe
Accident Research,’’ June 23, 1997.
SECY–98–131, ‘‘Status of the Integration Plan for Closure of Severe Accident Issues and the Status of Severe
Accident Research,’’ June 8, 1998.
SRM–SECY–15–0065, ‘‘Proposed Rulemaking: Mitigation of Beyond-Design-Basis Events (RIN 3150–AJ49)’’ .......
SRM–COMSECY–14–0037, ‘‘Integration of Mitigating Strategies for Beyond-Design-Basis External Events and
The Reevaluation of Flooding Hazards’’.
SRM–COMSECY–13–0002, ‘‘Consolidation of Japan Lessons Learned Near-Term Task Force Recommendations
4 and 7 Regulatory Activities’’.
SRM–SECY–11–0093, ‘‘Near-Term Report and Recommendations for Agency Actions Following the Events in
Japan,’’ August 19, 2011.
SRM–SECY–11–0137, ‘‘Prioritization of Recommended Actions to Be Taken in Response to Fukushima Lessons
Learned,’’ December 15, 2011.
SRM–SECY–13–0132, ‘‘U.S. Nuclear Regulatory Commission Staff Recommendation for the Disposition of Recommendation 1 of the Near-Term Task Force Report,’’ May 19, 2014.
SRM–SECY–2011–0124, ‘‘Recommended Actions to be Taken Without Delay From the Near-Term Task Force
Report,’’ October 18, 2011.
Temporary Instruction 2515/191, ‘‘Inspection of the Licensee’s Responses to Mitigation Strategies Order EA–12–
049, Spent Fuel Pool Instrumentation Order EA–12–051 and Emergency Preparedness Information Requested
in NRC March 12, 2012,’’ March 12, 2012.
Temporary Instruction 2515/184, ‘‘Availability and Readiness Inspection of Severe Accident Management Guidelines (SAMGs),’’ April 29, 2011.
Vermont Yankee Nuclear Power Station, ‘‘Rescission of Order EA–12–049, ’Order Modifying Licenses with Regard to Requirements for Mitigation Strategies for Beyond Design Basis External Events’,’’ March 2, 2015.
Vermont Yankee Nuclear Power Station, ‘‘Rescission of Order EA–12–051, ’Order Modifying Licenses with Regard to Reliable Spent Fuel Pool Instrumentation’,’’ March 2, 2015.
Throughout the development of this
rulemaking, the NRC may post
documents related to this rulemaking,
including public comments, on the
Federal rulemaking Web site at https://
www.regulations.gov under Docket ID
NRC–2014–0240. The Federal
rulemaking Web site allows you to
receive alerts when changes or additions
occur in a docket folder. To subscribe:
(1) Navigate to the docket folder (NRC–
2014–0240); (2) click the ‘‘Sign up for
Email Alerts’’ link; and (3) enter your
email address and select how frequently
you would like to receive emails (daily,
weekly, or monthly).
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List of Subjects
10 CFR Part 50
Administrative practice and
procedure, Antitrust, Classified
information, Criminal penalties,
Education, Fire prevention, Fire
protection, Incorporation by reference,
Intergovernmental relations, Nuclear
power plants and reactors, Penalties,
Radiation protection, Reactor siting
criteria, Reporting and recordkeeping
requirements, Whistleblowing.
10 CFR Part 52
Administrative practice and
procedure, Antitrust, Backfitting,
Combined license, Early site permit,
Emergency planning, Fees,
Incorporation by reference, Inspection,
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Limited work authorization, Nuclear
power plants and reactors, Penalties,
Probabilistic risk assessment, Prototype,
Reactor siting criteria, Redress of site,
Reporting and recordkeeping
requirements, Standard design,
Standard design certification.
For the reasons set out in the
preamble and under the authority of the
Atomic Energy Act of 1954, as amended;
the Energy Reorganization Act of 1974,
as amended; and 5 U.S.C. 552 and 553,
the NRC is proposing to adopt the
following amendments to 10 CFR parts
50 and 52.
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Federal Register / Vol. 80, No. 219 / Friday, November 13, 2015 / Proposed Rules
PART 50—DOMESTIC LICENSING OF
PRODUCTION AND UTILIZATION
FACILITIES
1. The authority citation for 10 CFR
part 50 continues to read as follows:
■
Authority: Atomic Energy Act of 1954,
secs. 11, 101, 102, 103, 104, 105, 108, 122,
147, 149, 161, 181, 182, 183, 184, 185, 186,
187, 189, 223, 234 (42 U.S.C. 2014, 2131,
2132, 2133, 2134, 2135, 2138, 2152, 2167,
2169, 2201, 2231, 2232, 2233, 2234, 2235,
2236, 2237, 2239, 2273, 2282); Energy
Reorganization Act of 1974, secs. 201, 202,
206, 211 (42 U.S.C. 5841, 5842, 5846, 5851);
Nuclear Waste Policy Act of 1982, sec. 306
(42 U.S.C. 10226); National Environmental
Policy Act of 1969 (42 U.S.C. 4332); 44 U.S.C.
3504 note; Sec. 109, Pub. L. 96–295, 94 Stat.
783.
2. In § 50.8, paragraph (b) is revised to
read as follows:
■
§ 50.8 Information collection
requirements: OMB approval.
*
*
*
*
*
(b) The approved information
collection requirements contained in
this part appear in §§ 50.30, 50.33,
50.34, 50.34a, 50.35, 50.36, 50.36a,
50.36b, 50.44, 50.46, 50.47, 50.48, 50.49,
50.54, 50.55, 50.55a, 50.59, 50.60, 50.61,
50.61a, 50.62, 50.63, 50.64, 50.65, 50.66,
50.68, 50.69, 50.70, 50.71, 50.72, 50.74,
50.75, 50.80, 50.82, 50.90, 50.91, 50.120,
50.150, 50.155, and appendices A, B, E,
G, H, I, J, K, M, N, O, Q, R, and S to
this part.
*
*
*
*
*
■ 3. In § 50.34, paragraphs (a)(13),
(b)(12), and (i) are revised to read as
follows:
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§ 50.34 Contents of applications; technical
information.
(a) * * *
(13) On or after July 13, 2009, power
reactor applicants who apply for a
construction permit shall submit the
information required by 10 CFR
50.150(b) as a part of their preliminary
safety analysis report.
(b) * * *
(12) On or after July 13, 2009, power
reactor applicants who apply for an
operating license which is subject to 10
CFR 50.150(a) shall submit the
information required by 10 CFR
50.150(b) as a part of their final safety
analysis report.
*
*
*
*
*
(i) Mitigation of beyond-design-basis
events. Each application for a power
reactor operating license under this part
must include the applicant’s plans for
implementing the requirements of
§ 50.155 and 10 CFR part 50, appendix
E, section VII, including a schedule for
achieving full compliance with these
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requirements. The application must also
include a description of:
(1) The integrated response capability
required by § 50.155(b);
(2) The equipment upon which the
strategies and guidelines required by
§ 50.155(b)(1) rely, including the
planned locations of the equipment and
how the equipment and SSCs meet the
design requirements of § 50.155(c); and
(3) The strategies and guidelines
required by § 50.155(b)(2).
■ 4. In § 50.54 remove paragraph
(hh)(2), redesignate paragraph (hh)(3) as
(hh)(2) and revise it to read as follows:
§ 50.54
Conditions of licenses.
*
*
*
*
*
(hh) * * *
(2) This section does not apply to a
licensee that has submitted the
certifications required under
§ 50.82(a)(1) or § 52.110(a) of this
chapter once the NRC has docketed
those certifications.
*
*
*
*
*
■ 5. Add § 50.155 under the
undesignated center heading Additional
Standards for Lisences, Certifications,
and Regulatory Approvals to read as
follows:
§ 50.155 Mitigation of Beyond-DesignBasis Events.
(a) Applicability. (1) Each holder of an
operating license for a nuclear power
reactor under this part and each holder
of a combined license under part 52 of
this chapter after the Commission has
made the finding under § 52.103(g),
before the NRC’s docketing of the
license holder’s certifications described
in § 50.82(a)(1) or § 52.110(a) of this
chapter, shall comply with the
requirements of this section and section
VII of appendix E to 10 CFR part 50.
(2) Each applicant for an operating
license for a nuclear power reactor
under this part and each holder of a
combined license under part 52 of this
chapter before the Commission has
made the finding under § 52.103(g) shall
comply with the requirements of this
section and section VII of appendix E to
10 CFR part 50 no later than the date on
which the Commission issues the
operating license under § 50.57 or
makes the finding under § 52.103(g),
respectively.
(3) When the NRC has docketed the
certifications described in § 50.82(a)(1)
or § 52.110(a) of this chapter, submitted
by a licensee subject to the requirements
of this section and section VII of
appendix E to 10 CFR part 50, then that
licensee shall comply with the
requirements of § 50.155(b) through (e)
associated with maintaining or restoring
secondary containment capabilities, if
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applicable, and spent fuel pool cooling
capabilities, but need not comply with
§ 50.155(c)(4) and section VII of
appendix E to 10 CFR part 50, for the
unit described in the § 50.82(a)(1) or
§ 52.110(a) certifications until the spent
fuel pool(s) is empty of all irradiated
fuel.
(i) Holders of operating licenses or
combined licenses for which the NRC
has docketed the certifications
described in § 50.82(a)(1) or § 52.110(a)
of this chapter need not meet the
requirements of this section except for
paragraph (b)(2) of this section once the
decay heat of the fuel in the spent fuel
pool can be removed solely by heating
and boiling of water within the spent
fuel pool and the boil-off period
provides sufficient time for the licensee
to obtain off-site resources to sustain the
spent fuel pool cooling function
indefinitely, as demonstrated by an
analysis performed and retained by the
licensee.
(ii) Dominion Nuclear Connecticut,
Inc. (Millstone Power Station Unit 1) is
not subject to the requirements of this
section.
(b) Integrated response capability.
Each applicant or licensee shall
develop, implement, and maintain an
integrated response capability that
includes:
(1) Mitigation Strategies for BeyondDesign-Basis External Events. Strategies
and guidelines to mitigate beyonddesign-basis external events from
natural phenomena that result in an
extended loss of all ac power concurrent
with either a loss of normal access to the
ultimate heat sink or, for passive reactor
designs, a loss of normal access to the
normal heat sink. These strategies and
guidelines must be capable of being
implemented site-wide and must
include:
(i) Maintaining or restoring core
cooling, containment, and spent fuel
pool cooling capabilities; and
(ii) The acquisition and use of offsite
assistance and resources to support the
functions required by paragraph (b)(1)(i)
of this section indefinitely, or until
sufficient site functional capabilities can
be maintained without the need for the
mitigation strategies.
(2) Extensive Damage Mitigation
Guidelines (EDMGs). Strategies and
guidelines to maintain or restore core
cooling, containment, and spent fuel
pool cooling capabilities under the
circumstances associated with loss of
large areas of the plant due to
explosions or fire, to include strategies
and guidelines in the following areas:
(i) Firefighting;
(ii) Operations to mitigate fuel
damage; and
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(iii) Actions to minimize radiological
release.
(3) Integration of strategies and
guidelines in paragraphs (b)(1) and (2)
of this section with the Emergency
Operating Procedures (EOPs).
(4) Sufficient staffing to support
implementation of the strategies and
guidelines in paragraphs (b)(1) and (2)
of this section in conjunction with the
EOPs to respond to events.
(5) A supporting organizational
structure with defined roles,
responsibilities, and authorities for
directing and performing the strategies
and guidelines in paragraphs (b)(1) and
(2) of this section.
(c) Equipment. (1) The capacity and
capability of the equipment relied on for
the mitigation strategies required by
paragraph (b)(1) of this section must be
sufficient to simultaneously maintain or
restore core cooling, containment, and
spent fuel pool cooling capabilities for
all the power reactor units within the
site boundary.
(2) The equipment relied on for the
mitigation strategies required by
paragraph (b)(1) of this section must be
reasonably protected from the effects of
natural phenomena that are equivalent
to the design basis of the facility.
(i) Each licensee that received the
March 12, 2012, NRC letter issued under
§ 50.54(f) concerning reevaluations of
seismic and flooding hazard levels, shall
provide reasonable protection against
that reevaluated seismic or flooding
hazard(s) if it exceeds the design basis
of its facility.
(3) The equipment relied on for the
mitigation strategies in paragraph (b)(1)
of this section must receive adequate
maintenance such that the equipment is
capable of fulfilling its intended
function.
(4) The equipment relied on for the
mitigation strategies in paragraph (b)(1)
of this section must include reliable
means to remotely monitor wide-range
spent fuel pool levels to support
effective prioritization of event
mitigation and recovery actions.
(d) Training requirements. Each
licensee shall provide for the training
and qualification of personnel that
perform activities in accordance with
the strategies and guidelines identified
in paragraphs (b)(1) and (2) of this
section. The training and qualification
on these activities must be developed
using the systems approach to training
as defined in § 55.4 of this chapter
except for elements already covered
under other NRC regulations.
(e) Drills and Exercises. (1) An
applicant for an operating license issued
under this part shall conduct an initial
drill or exercise that demonstrates the
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capability to transition to and use one
or more of the strategies and guidelines
in paragraphs (b)(1) and (2) of this
section and use the communications
equipment required in 10 CFR part 50,
appendix E, section VII, no more than
12 months before issuance of an
operating license for the unit described
in the license application.
(2) A holder of a combined license
issued under 10 CFR part 52 before the
Commission has made the finding under
§ 52.103(g), shall conduct an initial drill
or exercise that demonstrates the
capability to transition to and use one
or more of the strategies and guidelines
in paragraphs (b)(1) and (2) of this
section and use the communications
equipment required in 10 CFR part 50,
appendix E, section VII, no more than
12 months before the date specified for
completion of the last inspections, tests,
and analyses in the inspections, tests,
analyses, and acceptance criteria
(ITAAC) completion schedule required
by § 52.99(a) for the unit described in
the combined license.
(3) Once the Commission issues an
operating license to an entity described
in paragraph (e)(1) of this section or
makes the finding under § 52.103(g) of
this chapter for an entity described in
paragraph (e)(2) of this section, the
licensee shall conduct subsequent drills,
exercises, or both that collectively
demonstrate a capability to use at least
one of the strategies and guidelines in
each of paragraphs (b)(1) and (2) of this
section in succeeding 8-year intervals.
The drills and exercises performed to
demonstrate this capability must
include transitions from other
procedures and guidelines as
applicable, and the use of
communications equipment required in
10 CFR part 50, appendix E, section VII.
Each licensee shall not exceed 8 years
between any consecutive drills or
exercises.
(4) A holder of an operating license
issued under this part or a combined
license under 10 CFR part 52 for which
the Commission has made the finding
specified in § 52.103(g) as of
[EFFECTIVE DATE OF THE FINAL
RULE], shall conduct an initial drill or
exercise that demonstrates the
capability to transition to and use one
or more of the strategies and guidelines
in paragraphs (b)(1) and (2) of this
section and use communications
equipment required in 10 CFR part 50,
appendix E, section VII, by [DATE 4
YEARS AFTER EFFECTIVE DATE OF
THE FINAL RULE]. Following this
initial drill or exercise, the licensee
shall conduct subsequent drills,
exercises, or both that collectively
demonstrate a capability to use at least
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70645
one of the strategies and guidelines in
each of paragraphs (b)(1) and (2) of this
section in succeeding 8-year intervals.
The drills and exercises performed to
demonstrate this capability must
include transitions from other
procedures and guidelines as
applicable, and the use of
communications equipment required in
10 CFR part 50, appendix E, section VII.
Each licensee shall not exceed 8 years
between any consecutive drills or
exercises.
(f) Change Control. (1) A licensee may
make changes in the implementation of
the requirements in this section and 10
CFR part 50, appendix E, section VII,
without NRC approval, provided that
before implementing each such change,
the licensee performs an evaluation
demonstrating that the provisions of this
section and 10 CFR part 50, appendix E,
section VII, continue to be met.
(2) Documentation of all changes,
including the evaluation required by
paragraph (f)(1) of this section, shall be
maintained until the requirements of
this section and section VII of appendix
E to 10 CFR part 50 no longer apply.
(3) Changes in the implementation of
requirements in this chapter subject to
change control processes other than
paragraph (f) of this section and
resulting from changes in the
implementation of the requirements in
this section and 10 CFR part 50,
appendix E, section VII, must be
processed via their respective change
control processes.
(g) Implementation. Unless otherwise
specified in this section or 10 CFR part
50, appendix E, section VII:
(1) Each holder of an operating license
under this part on [EFFECTIVE DATE
OF THE FINAL RULE] shall comply
with all the provisions of this section no
later than 2 years following [EFFECTIVE
DATE OF THE FINAL RULE].
(2) Each holder of a combined license
under 10 CFR part 52 for which the
Commission made the finding specified
in § 52.103(g) as of [EFFECTIVE DATE
OF THE FINAL RULE] shall comply
with all the provisions of this section no
later than 2 years following [EFFECTIVE
DATE OF THE FINAL RULE].
■ 6. In appendix E to part 50 revise
paragraphs I.2, IV.B.1, IV.E.2, IV.F.2.j,
and VI.3.c and add section VII to read
as follows:
Appendix E to Part 50—Emergency
Planning and Preparedness for
Production and Utilization Facilities
*
*
*
*
*
I. * * *
2. This appendix establishes minimum
requirements for emergency plans for use in
attaining an acceptable state of emergency
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preparedness. These plans shall be described
generally in the preliminary safety analysis
report for a construction permit and
submitted as part of the final safety analysis
report for an operating license. These plans,
or major features thereof, may be submitted
as part of the site safety analysis report for
an early site permit. Section VII of this
appendix also provides for ‘‘Communications
and Staffing Requirements for the Mitigation
of Beyond-Design-Basis Events’’ that do not
need to be contained within a licensee’s
emergency plan.
*
*
*
*
*
IV. * * *
B. * * *
1. The means to be used for determining
the magnitude of, and for continually
assessing the impact of, the release of
radioactive materials, including from all
reactor core and spent fuel pool sources,
shall be described, including emergency
action levels that are to be used as criteria for
determining the need for notification and
participation of local and State agencies, the
Commission, and other Federal agencies, and
the emergency action levels that are to be
used for determining when and what type of
protective measures should be considered
within and outside the site boundary to
protect health and safety. The emergency
action levels shall be based on in-plant
conditions and instrumentation in addition
to onsite and offsite monitoring. By June 20,
2012, for nuclear power reactor licensees,
these action levels must include hostile
action that may adversely affect the nuclear
power plant. The initial emergency action
levels shall be discussed and agreed on by
the applicant or licensee and state and local
governmental authorities, and approved by
the NRC. Thereafter, emergency action levels
shall be reviewed with the State and local
governmental authorities on an annual basis.
*
*
*
*
*
E. * * *
2. Equipment for determining the
magnitude of and for continuously assessing
the impact of the release of radioactive
materials, including from all reactor core and
spent fuel pool sources, to the environment;
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*
*
*
*
*
F. * * *
2. * * *
j. The exercises conducted under
paragraph 2 of this section by nuclear power
reactor licensees must provide the
opportunity for the ERO to demonstrate
proficiency in the key skills necessary to
implement the principal functional areas of
emergency response identified in paragraph
2.b of this section. Each exercise must
provide the opportunity for the ERO to
demonstrate key skills specific to emergency
response duties in the control room, TSC,
OSC, EOF, and joint information center.
Additionally, in each eight calendar year
exercise cycle, nuclear power reactor
licensees shall vary the content of scenarios
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during exercises conducted under paragraph
2 of this section to provide the opportunity
for the ERO to demonstrate proficiency in the
key skills necessary to respond to the
following scenario elements: hostile action
directed at the plant site, no radiological
release or an unplanned minimal radiological
release that does not require public
protective actions, an initial classification of
or rapid escalation to a Site Area Emergency
or General Emergency, and integration of
offsite resources with onsite response. The
licensee shall maintain a record of exercises
conducted during each eight year exercise
cycle that documents the content of scenarios
used to comply with the requirements of this
paragraph. Each licensee shall conduct a
hostile action exercise for each of its sites no
later than December 31, 2015. The first 8-year
exercise cycle for a site will begin in the
calendar year in which the first hostile action
exercise is conducted. For a site licensed
under 10 CFR part 52, the first 8-year
exercise cycle begins in the calendar year of
the initial exercise required by section
IV.F.2.a of this appendix.
*
*
*
*
*
VI. * * *
3. * * *
c. In the event of a failure of NRC-supplied
equipment, a replacement will be furnished
by the NRC for licensee installation.
*
*
*
*
*
VII. Communications and Staffing
Requirements for the Mitigation of Beyond
Design Basis Events
All changes associated with
implementation of the requirements in this
section are subject to § 50.155(f). The change
control provisions of § 50.54(q) do not apply
to proposed changes associated with
implementation of the requirements in this
section, unless the requirements in this
section are implemented within the
licensee’s emergency plan.
1. Each nuclear power reactor applicant or
licensee shall perform a detailed analysis
demonstrating that sufficient staff is available
to implement the guidelines and strategies to
respond to a beyond design basis external
event resulting in impeded access to the
nuclear power plant, an extended loss of ac
power sources concurrent with either a loss
of normal access to the ultimate heat sink or,
for passive reactor designs, a loss of normal
access to the normal heat sink, and affecting
all units on-site.
a. An applicant for a power reactor
operating license under this part shall
perform this analysis and submit it to the
NRC under § 50.4 at least 2 years before the
issuance of the first operating license for full
power (one authorizing operation above 5
percent of rated thermal power).
b. A holder of a combined license issued
under 10 CFR part 52 before the Commission
has made the finding under § 52.103(g) of
this chapter shall perform this analysis and
submit it to the NRC under § 52.3 of this
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Fmt 4701
Sfmt 4702
chapter at least 2 years before the date
specified for completion of the last
inspections, tests, and analyses in the
inspections, tests, analyses, and acceptance
criteria (ITAAC) completion schedule
required by § 52.99(a) of this chapter for the
plant.
c. Each holder of a power reactor operating
license or combined license for which the
Commission has made the finding specified
in § 52.103(g) of this chapter as of
[EFFECTIVE DATE OF THE FINAL RULE],
before the NRC’s docketing of the license
holder’s certifications described in
§ 50.82(a)(1) or § 52.110(a) of this chapter,
shall perform this analysis and submit it to
the NRC under § 50.4 no later than [DATE
365 DAYS AFTER EFFECTIVE DATE OF
THE FINAL RULE].
2. Each nuclear power reactor applicant or
licensee shall make and describe adequate
provisions for at least one onsite and one
offsite communications system capable of
remaining functional during an extended loss
of alternating current power including the
effects of the loss of the local
communications infrastructure.
a. An applicant for a power reactor
operating license under this part shall make
these provisions no later than the issuance of
the first operating license for full power (one
authorizing operation above 5 percent of
rated thermal power).
b. A holder of a combined license issued
under 10 CFR part 52 before the Commission
has made the finding under § 52.103(g) of
this chapter shall make these provisions no
later than the date specified for completion
of the last inspections, tests, and analyses in
the ITAAC completion schedule required by
§ 52.99(a) of this chapter for the plant.
c. Each holder of a power reactor operating
license under this part or a combined license
issued under 10 CFR part 52 for which the
Commission has made the finding specified
in § 52.103(g) of this chapter as of
[EFFECTIVE DATE OF THE FINAL RULE],
before the NRC’s docketing of the license
holder’s certifications described in
§ 50.82(a)(1) or § 52.110(a) of this chapter,
shall make these provisions no later than
[DATE 365 DAYS AFTER EFFECTIVE DATE
OF THE FINAL RULE].
PART 52—LICENSES,
CERTIFICATIONS, AND APPROVALS
FOR NUCLEAR POWER PLANTS
7. The authority citation for part 52
continues to read as follows:
■
Authority: Atomic Energy Act of 1954,
secs. 103, 104, 147, 149, 161, 181, 182, 183,
185, 186, 189, 223, 234 (42 U.S.C. 2133, 2134,
2167, 2169, 2201, 2231, 2232, 2233, 2235,
2236, 2239, 2273, 2282); Energy
Reorganization Act of 1974, secs. 201, 202,
206, 211 (42 U.S.C. 5841, 5842, 5846, 5851);
44 U.S.C. 3504 note.
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8. In § 52.80, revise paragraph (d) to
read as follows:
■
§ 52.80 Contents of applications;
additional technical information.
*
*
*
*
(d) The applicant’s plans for
implementing the requirements of
§ 50.155 of this chapter and 10 CFR part
50, appendix E, section VII, including a
schedule for achieving full compliance
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with these requirements, and a
description of:
(1) The integrated response capability
required by § 50.155(b) of this chapter;
(2) The equipment upon which the
strategies and guidelines required by
§ 50.155(b)(1) of this chapter rely,
including the planned locations of the
equipment and how the equipment and
SSCs meet the design requirements of
§ 50.155(c) of this chapter; and
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70647
(3) The strategies and guidelines
required by § 50.155(b)(2) of this
chapter.
Dated at Rockville, Maryland, this 2nd day
of November, 2015.
For the Nuclear Regulatory Commission.
Annette L. Vietti-Cook,
Secretary of the Commission.
[FR Doc. 2015–28589 Filed 11–12–15; 8:45 am]
BILLING CODE 7590–01–P
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Agencies
[Federal Register Volume 80, Number 219 (Friday, November 13, 2015)]
[Proposed Rules]
[Pages 70609-70647]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-28589]
[[Page 70609]]
Vol. 80
Friday,
No. 219
November 13, 2015
Part III
Nuclear Regulatory Commission
-----------------------------------------------------------------------
10 CFR Parts 50 and 52
Mitigation of Beyond-Design-Basis Events; Proposed Rule
Federal Register / Vol. 80 , No. 219 / Friday, November 13, 2015 /
Proposed Rules
[[Page 70610]]
-----------------------------------------------------------------------
NUCLEAR REGULATORY COMMISSION
10 CFR Parts 50 and 52
[Docket Nos. PRM-50-97 and PRM-50-98; NRC-2011-0189 and NRC-2014-0240]
RIN 3150-AJ49
Mitigation of Beyond-Design-Basis Events
AGENCY: Nuclear Regulatory Commission.
ACTION: Proposed rule.
-----------------------------------------------------------------------
SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is proposing to
amend its regulations that establish regulatory requirements for
nuclear power reactor applicants and licensees to mitigate beyond-
design-basis events. The NRC is proposing to make generically
applicable requirements in Commission orders for mitigation of beyond-
design-basis events and for reliable spent fuel pool instrumentation.
This proposed rule would establish regulatory requirements for an
integrated response capability, including supporting requirements for
command and control, drills, training and change control. This proposed
rule also would establish requirements for enhanced onsite emergency
response capabilities. Finally, this proposed rule would address a
number of petitions for rulemaking (PRMs) submitted to the NRC
following the March 2011 Fukushima Dai-ichi event. This rulemaking is
applicable to power reactor licensees, power reactor license
applicants, and decommissioning power reactor licensees. This
rulemaking combines two NRC activities for which documents have been
published in the Federal Register--Onsite Emergency Response
Capabilities (RIN 3150-AJ11; NRC-2012-0031) and Station Blackout
Mitigation Strategies (RIN 3150-AJ08; NRC-2011-0299). The new
identification numbers for this consolidated rulemaking are RIN 3150-
AJ49 and NRC-2014-0240.
DATES: Submit comments by February 11, 2016. 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
before this date. A public meeting will be held during the public
comment period; refer to the NRC's public meeting schedule on the NRC
Web site at https://meetings.nrc.gov/pmns/mtg.
ADDRESSES: You may submit comments by any of the following methods:
Federal Rulemaking Web site: Go to https://www.regulations.gov and search for Docket ID NRC-2014-0240. 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.
Email comments to: Rulemaking.Comments@nrc.gov. If you do
not receive an automatic email reply confirming receipt, then contact
us at 301-415-1677.
Fax comments to: Secretary, U.S. Nuclear Regulatory
Commission at 301-415-1101.
Mail comments to: Secretary, U.S. Nuclear Regulatory
Commission, Washington, DC 20555-0001, ATTN: Rulemakings and
Adjudications Staff.
Hand deliver comments to: 11555 Rockville Pike, Rockville,
Maryland 20852, between 7:30 a.m. and 4:15 p.m. (Eastern Time) Federal
workdays; telephone: 301-415-1677.
You may submit comments on the guidance documents and the
information collections by the methods indicated in the ``Availability
of Guidance'' and ``Paperwork Reduction Act'' sections of this
document.
For additional direction on obtaining information and submitting
comments, see ``Obtaining Information and Submitting Comments'' in the
SUPPLEMENTARY INFORMATION section of this document.
FOR FURTHER INFORMATION CONTACT: Timothy Reed, Office of Nuclear
Reactor Regulation, telephone: 301-415-1462, email:
Timothy.Reed@nrc.gov; or Eric Bowman, Office of Nuclear Reactor
Regulation, telephone: 301-415-2963, email: Eric.Bowman@nrc.gov. Both
are staff of the U.S. Nuclear Regulatory Commission, Washington, DC
20555-0001.
SUPPLEMENTARY INFORMATION:
Executive Summary
A. Need for the Regulatory Action
The U.S. Nuclear Regulatory Commission (NRC) is proposing to amend
its regulations to establish regulatory requirements for nuclear power
reactor applicants and licensees to mitigate beyond-design-basis
events. This proposed rule would make Commission Order EA-12-049 and
Order EA-12-051 generically applicable; establish regulatory
requirements for an integrated response capability, including
supporting requirements for command and control, drills, training and
change control; include requirements for enhanced onsite emergency
response capabilities; and address a number of petitions for rulemaking
submitted to the NRC following the March 2011 Fukushima Dai-ichi event.
This rulemaking would be applicable to operating power reactor
licensees, power reactor license applicants, and decommissioning power
reactor licensees. The NRC is conducting this rulemaking to amend the
regulations to reflect requirements imposed on current licensees by
order and to reflect the lessons learned from the Fukushima accident.
B. Major Provisions
Major provisions of this proposed rule include amendments or
additions to parts 50 and 52 of title 10 of the Code of Federal
Regulations (10 CFR) that would:
Revise the 10 CFR parts 50 and 52 ``Content of
application'' requirements to reflect the additional information that
would be required for applications.
Add proposed Sec. 50.155, which contains beyond-design-
basis mitigation requirements that would make Orders EA-12-049 and EA-
12-051 generically applicable; requires an integrated response
capability for beyond-design-basis events that includes the integration
of two guideline sets with the existing emergency operating procedures;
training requirements; drills or exercise requirements; and change
control requirements.
Revise 10 CFR part 50, appendix E, to include enhanced
capabilities for assessing the impact and release of radioactive
materials for multi-unit events; to remove references to specific
technology for each licensee's emergency response data system; to
include enhanced capabilities for onsite and offsite communications;
and to add staffing analysis requirements to address multi-unit events.
C. Costs and Benefits
The NRC prepared a draft regulatory analysis to determine the
expected costs and benefits of the proposed rule. The draft analysis
demonstrates that the proposed rule is justified. The draft analysis
examines the benefits and costs of the proposed rule requirements
relative to the baseline (i.e., no action alternative). Additionally,
the draft analysis estimates the historical costs incurred as a result
of implementation of Order EA-12-049, Order EA-12-051, and related
industry initiatives. The proposed rule costs are associated with the
proposed provisions that make generically-applicable Order EA-12-049
and Order EA-12-051, as well as related industry initiatives and the
NRC's rulemaking-related costs. Because the NRC uses a no action
baseline to estimate incremental costs, the total cost
[[Page 70611]]
of the proposed rule is estimated to be approximately $7.2 million for
the industry ($111,000 per site) to review the rule against the
previous implementation of Orders EA-12-049 and EA-12-051 and make any
additional changes to plant programs and procedures. This small impact
stems from the fact that the proposed requirements are expected to be
implemented prior to the effective date of the rule. However, this
regulatory analysis does not estimate the impacts that may occur as a
result of licensees needing to make changes to mitigation strategies
including potential plant modifications as a result of the need to
address the seismic and flooding reevaluated hazards for reasonable
protection of the FLEX equipment. As part of the proposed rule, the NRC
is seeking external stakeholder feedback to enable these impacts to be
estimated.
The proposed rule would result in a total one-time cost to the NRC
of $880,000 to complete the rulemaking (i.e., complete the proposed
rule, analyze public comments, hold public meeting(s), and develop the
final rule and regulatory guidance).
Based on the NRC's assessment of the costs and benefits of the
proposed rule, the NRC has concluded that the proposed rule is
justified. For more information, please see the draft regulatory
analysis (Accession No. ML15265A610 in the NRC's Agencywide Documents
Access and Management System).
Table of Contents
I. Obtaining Information and Submitting Comments
A. Obtaining Information
B. Submitting Comments
II. Background
A. Fukushima Dai-ichi
B. NRC Near-Term Task Force
C. Implementation of the NTTF Recommendations
D. Consolidation of Regulatory Efforts
E. Public Involvement
III. Petitions for Rulemaking
IV. Discussion
A. Rulemaking Objectives
B. Rulemaking Scope
C. Proposed Rule Organization
D. Proposed Rule Regulatory Bases
V. Section-by-Section Analysis
VI. Specific Requests for Comments
VII. Regulatory Flexibility Certification
VIII. Availability of Regulatory Analysis
IX. Availability of Guidance
X. Backfitting and Issue Finality
XI. Cumulative Effects of Regulation
XII. Plain Writing
XIII. Environmental Assessment and Proposed Finding of No
Significant Environmental Impact
XIV. Paperwork Reduction Act
XV. Criminal Penalties
XVI. Coordination With NRC Agreement States
XVII. Compatibility of Agreement State Regulations
XVIII. Voluntary Consensus Standards
XIX. Public Meeting
XX. Availability of Documents
I. Obtaining Information and Submitting Comments
A. Obtaining Information
Please refer to Docket ID NRC-2014-0240 when contacting the U.S.
Nuclear Regulatory Commission (NRC) about the availability of
information for this action. You may obtain publicly-available
information related to this action by any of the following methods:
Federal Rulemaking Web site: Go to https://www.regulations.gov and search for Docket ID NRC-2014-0240.
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 pdr.resource@nrc.gov. For
the convenience of the reader, instructions about obtaining materials
referenced in this document are provided in the ``Availability of
Documents'' section.
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-2014-0240 in your comment submission.
The NRC cautions you not to include identifying or contact
information that you do not want to be publicly disclosed in your
comment submission. The NRC will post all comment submissions at https://www.regulations.gov as well as enter the comment submissions into
ADAMS. The NRC does not routinely 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 that they do not want to be
publicly disclosed in their comment submission. Your request should
state that the NRC does not routinely edit comment submissions to
remove such information before making the comment submissions available
to the public or entering the comment into ADAMS.
II. Background
A. Fukushima Dai-ichi
At 2:46 p.m. Japan standard time on March 11, 2011, the Great East
Japan Earthquake, rated a magnitude 9.0, occurred at a depth of
approximately 25 kilometers, 130 kilometers east of Sendai and 372
kilometers northeast of Tokyo off the coast of Honshu Island. This
earthquake resulted in the automatic shutdown of 11 nuclear power
plants (NPPs) at four sites along the northeast coast of Japan
including three of six reactors at the Fukushima Dai-ichi NPP (the
three remaining plants were in outages). The earthquake precipitated a
large tsunami that is estimated to have exceeded 14 meters in height at
the Fukushima Dai-ichi NPP. The earthquake and tsunami produced
widespread devastation across northeastern Japan, resulting in
approximately 25,000 people dead or missing, displacing many tens of
thousands of people, and significantly impacting the infrastructure and
industry in the northeastern coastal areas of Japan.
The earthquake and tsunami disabled the majority of the external
and internal electrical power systems at the Fukushima Dai-ichi NPP,
leaving it with only a few hours' worth of battery power. Since an NPP
licensee typically relies on electrical power to keep its reactor core
and spent fuel pool (SFP) cool, this loss of internal and external
power was a significant challenge to operators at Fukushima Dai-ichi.
In addition, the combination of severe events challenged the
implementation of emergency plans and procedures.
B. NRC Near-Term Task Force
The NRC Chairman's tasking memorandum, COMGBJ-11-0002, ``NRC
Actions Following the Events in Japan,'' established a senior-level
task force referred to as the ``Near-Term Task Force'' (NTTF) to
conduct a systematic and methodical review of NRC regulations and
processes to determine if the agency should make safety improvements in
light of the events in Japan. On July 12, 2011, the NRC staff provided
the Commission with the report of the NTTF (NTTF Report) as an
enclosure to SECY-11-0093, ``Near-Term Report and Recommendations for
Agency Actions Following the Events in Japan.'' The NTTF concluded that
continued U.S. plant operation and NRC licensing activities present no
imminent risk to public health and safety. While
[[Page 70612]]
the NTTF also concluded that the current regulatory system has served
the NRC and the public well, it found that enhancements to safety and
emergency preparedness are warranted and made a dozen general
recommendations for Commission consideration. In examining the
Fukushima Dai-ichi accident for insights for reactors in the United
States, the NTTF addressed protecting against accidents resulting from
natural phenomena, mitigating the consequences of such accidents, and
ensuring emergency preparedness. The NTTF found that the Commission's
longstanding defense-in-depth philosophy, supported and modified as
necessary by state-of-the-art probabilistic risk assessment techniques,
should continue to serve as the primary organizing principle of its
regulatory framework. The NTTF concluded that the application of the
defense-in-depth philosophy could be strengthened by including explicit
requirements for beyond-design-basis events.
In response to the NTTF Report, the Commission directed the NRC
staff to engage with stakeholders to review and assess the NTTF
recommendations in a comprehensive and holistic manner and to provide
the Commission with fully-informed options and recommendations. The
Commission's Staff Requirements Memorandum (SRM)-SECY-11-0093 provided
that direction and specifically directed the NRC staff to pursue
recommendation 1 of the NTTF Report independent of the activities
associated with the review of the remaining recommendations. The NTTF's
recommendation 1 was to establish a logical, systematic, and coherent
regulatory framework for adequate protection that appropriately
balances defense-in-depth and risk considerations. This recommendation
included steps for the establishment of a Commission policy statement
for a risk-informed defense-in-depth framework including extended
design-basis requirements and the initiation of rulemaking to implement
that framework. The results of the NRC staff work on NTTF
recommendation 1 were provided to the Commission in SECY-13-0132,
``Plan for Updating the U.S. Nuclear Regulatory Commission's Cost
Benefit Guidance,'' and dispositioned by the Commission in SRM-SECY-13-
0132, which specifically disapproved the establishment of a design-
basis extension category of events and associated regulatory
requirements and changes to the NRC's approach to defense-in-depth, but
allowed for reevaluation, as appropriate, in the context of the
Commission direction on the proposed policy statement for a long-term
Risk Management Regulatory Framework. That work is outside of the scope
of this rulemaking. The Commission has closed NTTF recommendation 1.
C. Implementation of the NTTF Recommendations
Following the issuance of the NTTF Report, the NRC staff provided
the Commission with recommendations for near-term action in SECY-11-
0124, ``Recommended Actions to be Taken Without Delay from the Near-
Term Task Force Report,'' dated September 9, 2011. The suggested near-
term actions addressed several NTTF recommendations associated with
this rulemaking, including NTTF recommendations 4, 8, and 9.3. In SRM-
SECY-11-0124, dated October 18, 2011, the Commission directed the NRC
staff to, among other things: initiate a rulemaking to address NTTF
recommendation 4, Station Blackout (SBO) regulatory actions, as an
Advance Notice of Proposed Rulemaking (ANPR); designate the SBO
rulemaking associated with NTTF recommendation 4 as a high priority
rulemaking; craft recommendations that continue to realize the
strengths of a performance-based system as a guiding principle; and
consider approaches that are flexible and able to accommodate a diverse
range of circumstances and conditions. As discussed more fully in later
portions of this proposed rule, the regulatory actions associated with
NTTF recommendation 4 evolved substantially from this early Commission
direction, and included issuance of Order EA-12-049 that, as
implemented, ultimately addressed all of NTTF recommendation 4 as well
as other recommendations.
In SECY-11-0137, ``Prioritization of Recommended Actions To Be
Taken in Response to Fukushima Lessons Learned,'' dated October 3,
2011, the NRC staff, based on its assessment of the NTTF
recommendations, proposed to the Commission a three-tiered
prioritization for implementing regulatory actions stemming from the
NTTF recommendations. The Tier 1 recommendations were those actions
having the greatest safety benefit that could be implemented without
unnecessary delay. The Tier 2 recommendations were those actions that
needed further technical assessment or critical skill sets to
implement, and the Tier 3 recommendations were longer-term actions that
depended on the completion of a shorter-term action or needed
additional study to support a regulatory action. On December 15, 2011,
the Commission approved the staff's recommended prioritization in SRM-
SECY-11-0137.
The NTTF recommendations that form the basis of this rulemaking
activity are:
NTTF recommendation 4: Strengthen SBO mitigation
capability at all operating and new reactors for design-basis and
beyond-design-basis external events;
NTTF recommendation 7: Enhance spent fuel pool makeup
capability and instrumentation for the spent fuel pool;
NTTF recommendation 8: Strengthen and integrate onsite
emergency response capabilities such as emergency operating procedures
(EOPs), Severe Accident Management Guidelines (SAMGs), and extensive
damage mitigation guidelines (EDMGs);
NTTF recommendation 9: Require that facility emergency
plans address staffing, dose assessment capability, communications,
training and exercises, and equipment and facilities for prolonged
station blackout, multi-unit events, or both;
NTTF recommendation 10: Pursue additional emergency
protection topics related to multi-unit events and prolonged station
blackout, including command and control structure and the
qualifications of decision makers; and
NTTF recommendation 11: Pursue emergency management topics
related to decision making, radiation monitoring, and public education,
including the ability to deliver equipment to the site with degraded
offsite infrastructure.
In response to input received from stakeholders, the NRC
accelerated the schedule originally proposed in SECY-11-0137. On
February 17, 2012, the NRC staff recommended in SECY-12-0025,
``Proposed Orders and Requests for Information in Response to Lessons
Learned From Japan's March 11, 2011, Great T[omacr]hoku Earthquake and
Tsunami,'' that the Commission issue orders and requests for
information.
To address Tier 1 NTTF recommendation 4, the NRC issued Order EA-
12-049 on March 12, 2012, requiring all U.S. nuclear power plant
licensees to implement strategies that would allow them to cope without
their permanent electrical power sources for an indefinite period of
time. These strategies would provide additional capability to maintain
or restore reactor core and spent fuel cooling, as well as protect the
reactor containment. This order also addressed: portions of NTTF
recommendation 9 to require that facility emergency plans address
prolonged station blackouts and multi-
[[Page 70613]]
unit events; portions of NTTF recommendation 10 to pursue additional
emergency protection topics related to multi-unit events and prolonged
station blackout; and portions of NTTF recommendation 11 to pursue
emergency procedure topics related to decision-making, radiation
monitoring, and public education.
To address Tier 1 NTTF recommendation 7, the NRC issued Order EA-
12-051 on March 12, 2012, requiring all U.S. nuclear power plant
licensees to have a reliable indication of the water level in
associated spent fuel storage pools.
To address Tier 1 NTTF recommendation 8, the NRC issued an ANPR on
April 18, 2012 (77 FR 23161), to engage stakeholders in rulemaking
activities associated with the methodology for integration of onsite
emergency response processes, procedures, training and exercises.
D. Consolidation of Regulatory Efforts
While developing the NTTF rulemakings, the NRC staff recognized
that efficiencies could be gained by consolidating the rulemaking
efforts due to the inter-relationships among the proposed changes. The
NRC staff recommended to the Commission in COMSECY-13-0002,
``Consolidation of Japan Lessons Learned Near-Term Task Force
Recommendations 4 and 7 Regulatory Activities,'' COMSECY-13-0010,
``Schedule and Plans for Tier 2 Order on Emergency Preparedness for
Japan Lessons Learned,'' and SECY-14-0046, ``Fifth 6-Month Status
Update on Response to Lessons Learned From Japan's March 11, 2011,
Great Tohoku Earthquake and Subsequent Tsunami,'' the consolidation of
rulemaking activities that address NTTF recommendations 4, 7, 8,
portions of 9, 10.2, and 11.1. Section II.B of this document contains a
more complete discussion of the scope of NTTF recommendations addressed
by this proposed rule. The Commission approved these consolidations in
the associated SRMs. These consolidations were intended to:
1. Align the proposed regulatory framework with ongoing industry
implementation efforts to produce a more coherent and understandable
regulatory framework. Given the complexity of these requirements and
their associated implementation, the NRC concluded that this is an
important objective for the regulatory framework.
2. Reduce the potential for inconsistencies and complexities
between the related rulemaking actions that could occur if the efforts
remained as separate rulemakings.
3. Facilitate better understanding of the proposed requirements for
both internal and external stakeholders, and thereby lessen the impact
on internal and external stakeholders who would otherwise need to
review and comment on multiple rulemakings while cross-referencing both
proposed rules and sets of guidance documents.
E. Public Involvement
This proposed rule consolidates two previous rulemaking efforts:
The Station Blackout Mitigation Strategies rulemaking, directed by SRM-
COMSECY-13-0002, and the Onsite Emergency Response Capabilities
rulemaking, which implemented NTTF recommendation 8. Both regulatory
efforts offered extensive external stakeholder involvement
opportunities, including public meetings, ANPRs issued for public
comment, and draft regulatory basis documents issued for public
comment. The major opportunities for stakeholder involvement were:
1. Station Blackout ANPR (77 FR 16175; March 20, 2012);
2. Onsite Emergency Response Capabilities ANPR (77 FR 23161; April
18, 2012);
3. Station Blackout Mitigation Strategies draft regulatory basis
and draft rule concepts (78 FR 21275; April 10, 2013). The final
Station Blackout Mitigation Strategies regulatory basis was
subsequently issued on July 23, 2013 (78 FR 44035); and
4. Onsite Emergency Response Capabilities draft regulatory basis
(78 FR 1154; January 8, 2013). The final Onsite Emergency Response
Capabilities regulatory basis, with preliminary proposed rule language,
was subsequently issued on October 25, 2013 (78 FR 63901).
The NRC described in each final regulatory basis document how it
considered stakeholder feedback in developing the respective final
regulatory basis, including consideration of ANPR comments and draft
regulatory basis document comments. Section 5 of the Station Blackout
Mitigation Strategies regulatory basis document includes a discussion
of stakeholder feedback used to develop the final regulatory basis.
Appendix B to the Onsite Emergency Response Capabilities regulatory
basis includes a discussion of stakeholder feedback used to develop
that final regulatory basis.
The public has had multiple opportunities to engage in these
regulatory efforts. Most noteworthy were the following:
1. Preliminary proposed rule language for Onsite Emergency Response
Capabilities made available to the public on November 15, 2013 (78 FR
68774).
2. Consolidated rulemaking proof of concept language made available
to the public on February 21, 2014.
3. Preliminary proposed rule language for Mitigation of Beyond-
Design-Basis Events rulemaking made available to the public on August
15, 2014.
4. Preliminary proposed rule language for Mitigation of Beyond-
Design-Basis Events rulemaking made available to the public on November
13, 2014, and December 8, 2014, to support public discussion with the
Advisory Committee on Reactor Safeguards (ACRS).
The NRC staff has had numerous interactions with the ACRS, and in
all cases these were public meetings, including the following:
1. The ACRS Plant Operations and Fire Protection subcommittee met
on February 6, 2013, to discuss the Onsite Emergency Response
Capabilities regulatory basis.
2. The ACRS Regulatory Policies and Practices subcommittee met on
December 5, 2013, and April 23, 2013, to discuss the Station Blackout
Mitigation Strategies regulatory basis.
3. The ACRS full committee met on June 5, 2013, to discuss the
Station Blackout Mitigation Strategies regulatory basis.
4. The ACRS Fukushima subcommittee met on June 23, 2014, to discuss
consolidation of Station Blackout Mitigation Strategies and Onsite
Emergency Response Capabilities rulemakings.
5. The ACRS full committee met on July 10, 2014, to discuss
consolidation of Station Blackout Mitigation Strategies and Onsite
Emergency Response Capabilities rulemakings.
6. The ACRS Fukushima subcommittee met on November 21, 2014, to
discuss preliminary proposed Mitigation of Beyond-Design-Basis Events
rulemaking language.
7. The ACRS Fukushima full committee met on December 4, 2014, to
discuss preliminary proposed Mitigation of Beyond-Design-Basis Events
rulemaking language.
The NRC held many additional public meetings that have supported
the development of this proposed rule. Notwithstanding these efforts to
engage the public during the preparation of this proposed rule, the
Commission is committed to the rigors of the notice-and-comment process
enacted by the Administrative Procedures Act, and is providing members
of the public a 90-
[[Page 70614]]
day comment period on the requirements NRC is proposing today.
III. Petitions for Rulemaking
During development of this proposed rule, the NRC gave
consideration to the issues raised in six petitions for rulemaking
(PRMs) submitted to the NRC, five from the Natural Resources Defense
Council Inc. (NRDC) (PRM-50-97, PRM-50-98, PRM-50-100, PRM-50-101, and
PRM-50-102), and one submitted by Mr. Thomas Popik (PRM-50-96). The
petitions filed by the NRDC use the NTTF Report as the sole basis for
the PRMs. The NTTF recommendations that the NRDC PRMs rely upon are:
4.1, 7.5, 8.4, 9.1, and 9.2. This proposed rule addresses each of these
recommendations, and therefore it would resolve the issues raised by
the NRDC PRMs. The NRDC petitions were dated July 26, 2011, and
docketed by the NRC on July 28, 2011. The NRC published a notice of
receipt in the Federal Register on September 20, 2011 (76 FR 58165),
and did not ask for public comment at that time.
In PRM-50-97 (NRC-2011-0189), the NRDC requested emergency
preparedness enhancements for prolonged station blackouts in the areas
of communications ability, Emergency Response Data System (ERDS)
capability, training and exercises and equipment and facilities (NTTF
recommendation 9.2). The NRC determined that the issues raised in this
PRM should be considered in the NRC's rulemaking process. The NRC's
consideration of the issues raised in PRM-50-97 are reflected in the
proposed provisions in Sec. 50.155(d) and (e), and the proposed
amendments to appendix E in both section VI and in new section VII,
``Communications and Staffing Requirements for the Mitigation of Beyond
Design Basis Events.'' The NRC concludes that consideration of the PRM
issues, as discussed herein, would address PRM-50-97. The NRC is
closing the docket for this petition and intends to take final action
on this petition in the Federal Register notice the NRC issues for the
final Mitigation of Beyond-Design-Basis Events rule.
In PRM-50-98 (NRC-2011-0189), the NRDC requested emergency
preparedness enhancements for multi-unit events in the areas of
personnel staffing, dose assessment capability, training and exercises,
and equipment and facilities (NTTF recommendation 9.1). The NRC
determined that the issues raised in this PRM should be considered in
the NRC's rulemaking process. The NRC's consideration of the issues
raised in PRM-50-98 are reflected in the proposed provisions in Sec.
50.155(b)(4), (d), and (e); and the proposed amendment to appendix E in
section IV as well as the addition of a new section VII. The NRC
concludes that consideration of the PRM issues, as discussed herein,
would address PRM-50-98. The NRC is closing the docket for this
petition and intends to take final action on this petition in the
Federal Register notice the NRC issues for the final Mitigation of
Beyond-Design-Basis Events rule.
In PRM-50-100, the NRDC requested enhancement of spent fuel pool
makeup capability and instrumentation for the spent fuel pool (NTTF
recommendation 7.5). The NRC determined that the issues raised in this
PRM should be considered in the NRC's rulemaking process, and the NRC
published a document in the Federal Register with this determination on
July 23, 2013 (78 FR 44034). The NRC's consideration of the issues
raised in PRM-50-100 are reflected in the proposed provisions in Sec.
50.155(b)(1) and (c)(4). This proposed rule would make generically
applicable NRC's Order EA-12-051, ``Spent Fuel Pool Instrumentation.''
The NRC concludes that consideration of the PRM issues, as discussed
herein, would address PRM-50-100. The NRC has already closed the docket
for this petition and intends to take final action on this petition in
the Federal Register notice the NRC issues for the final Mitigation of
Beyond-Design-Basis Events rule.
In PRM-50-101, the NRDC requested that Sec. 50.63, ``Loss of all
alternating current power,'' be revised to establish a minimum coping
time of 8 hours for a loss of all alternating current (ac) power,
establish the equipment, procedures, and training necessary to
implement an extended loss of ac power (72 hours) for core and spent
fuel pool cooling and for reactor coolant system and primary
containment integrity as needed, and preplan/prestage offsite resources
to support uninterrupted core and spent fuel pool cooling and reactor
coolant system and containment integrity as needed (NTTF recommendation
4.1). The NRC determined that the issues raised in this PRM should be
considered in the NRC's rulemaking process, and the NRC published a
document in the Federal Register with this determination on March 21,
2012 (77 FR 16483). The NRC's consideration of the issues raised in
PRM-50-101 is reflected in the proposed provisions in Sec.
50.155(b)(1), (c), (d), (e), and (f). The NRC concludes that
consideration of the PRM issues, as discussed herein, would address
PRM-50-101. The NRC has already closed the docket for this petition and
intends to take final action on this petition in the Federal Register
notice the NRC issues for the final Mitigation of Beyond-Design-Basis
Events rule.
In PRM-50-102, the NRDC requested more realistic, hands-on training
and exercises on SAMGs and EDMGs for licensee staff expected to
implement those guideline sets and make decisions during emergencies
(NTTF recommendation 8.4). The NRC determined that the issues raised in
this PRM should be considered in the NRC's rulemaking process, and the
NRC published a document in the Federal Register with this
determination on April 27, 2012 (77 FR 25104). The NRC's consideration
of the issues raised in PRM-50-102 are reflected in the proposed
provisions in Sec. 50.155(d) and (e). The NRC concludes that
consideration of the PRM issues, as discussed herein, would address
PRM-50-102. The NRC has already closed the docket for this petition and
intends to take final action on this petition in the Federal Register
notice the NRC issues for the final Mitigation of Beyond-Design-Basis
Events rule.
In PRM-50-96, Mr. Thomas Popik requested that the NRC amend its
regulations to require facilities licensed by the NRC to assure long-
term cooling and unattended water makeup of spent fuel pools in the
event of geomagnetic storms caused by solar storms resulting in long-
term losses of power. The NRC determined that the issues raised in this
PRM should be considered in the NRC's rulemaking process and the NRC
published a document in the Federal Register with this determination on
December 18, 2012 (77 FR 74788). In that Federal Register document, the
NRC also closed the docket for this petition. Specifically, the NRC
indicated that it would monitor the progress of the mitigation
strategies rulemaking to determine whether the requirements established
would address, in whole or in part, the issues raised in the PRM. In
this context, the proposed requirements in Sec. 50.155(b)(1) and (c)
and the associated draft regulatory guidance should address, in part,
the issues raised because these actions would establish offsite
assistance to support maintenance of the key functions (including both
reactor and spent fuel pool cooling) following an extended loss of ac
power that has been postulated for geomagnetic events. Additional
consideration of these issues will result from NRC's participation in
the interagency task force developing a National Space Weather Strategy
and the associated action plan. Both the strategy and action plan are
expected to be completed in 2015. When the
[[Page 70615]]
National plans are completed, the NRC will reevaluate the need for
additional actions to address the impact of geomagnetic storms on
nuclear power plants within the overall context of the National Space
Weather Strategy and action plan.
IV. Discussion
A. Rulemaking Objectives
The regulatory objectives of this rulemaking are to: (1) Make the
requirements in Order EA-12-049 and Order EA-12-051 generically
applicable, giving consideration to lessons learned from implementation
of the orders; (2) establish new requirements for an integrated
response capability; (3) establish new requirements for actions that
are related to onsite emergency response; and (4) address issues raised
by PRMs that were submitted to the NRC following the March 2011
Fukushima Dai-ichi event.
1. Make the requirements in Order EA-12-049 and Order EA-12-051
generically applicable, giving consideration to lessons learned from
implementation of the orders.
An objective of this rulemaking is to place the requirements in
Order EA-12-049 and Order EA-12-051 into the NRC's regulations so that
they apply to all current and future power reactor applicants, and to
provide regulatory clarity and stability to power reactor licensees. In
making the requirements of Order EA-12-049 generically-applicable, this
proposed rule would also consider the reevaluated hazard information
developed in response to the March 12, 2012, NRC letter issued under
Sec. 50.54(f) as part of providing reasonable protection for
mitigation strategies equipment against external flooding or seismic
hazards. Because these orders were issued to current licensees, the
requirements of these orders would not apply to future licensees. In
the absence of this proposed rule, these requirements would need to be
implemented for new reactor applicants or licensees through additional
orders or license conditions (as was done for the Vogtle Electric
Generating Plant, Units 3 and 4, Virgil C. Summer Nuclear Station,
Units 2 and 3, and Enrico Fermi Nuclear Plant, Unit 3, combined
licenses (COLs), respectively). As part of the rulemaking, the NRC
considered stakeholder feedback and lessons-learned from the
implementation of the orders, including any challenges or unintended
consequences associated with implementation. The NRC reflected this
stakeholder input in the draft regulatory guidance for this proposed
rule.
2. Establish new requirements for an integrated response
capability.
An objective of this rulemaking is to establish requirements for an
integrated response capability for beyond-design-basis events that
would integrate existing strategies and guidelines (implemented through
guideline sets) with the existing EOPs. This would include guideline
sets that implement the requirements of current Sec. 50.54(hh)(2) and
Order EA-12-049. This proposed rule would require sufficient staffing,
command and control, training, drills, and change control to support
the integrated response capability.
3. Establish new requirements for actions that are related to
onsite emergency response.
An objective of this rulemaking is to establish requirements for
onsite emergency response capabilities being implemented in conjunction
with the implementation of Order EA-12-049. This proposed rule contains
new requirements for staffing and communications assessment, and
clarifies requirements for multiple source term dose assessment.
4. Address a number of PRMs submitted to the NRC following the
March 2011 Fukushima Dai-ichi event.
An objective of this rulemaking is to address the five PRMs filed
by the NRDC that raise issues that pertain to the technical objectives
of this rulemaking. The petitions rely solely on the NTTF Report, and
request that the NRC undertake rulemaking in a number of areas that
would be addressed by this proposed rule. This proposed rule would also
address, in part, the PRM submitted by Mr. Thomas Popik.
B. Rulemaking Scope
The scope of this rulemaking, described in terms of the
relationship to various NTTF recommendations that provided the
regulatory impetus for this proposed rule, includes:
1. All the requirements that were within the scope of Station
Blackout Mitigation Strategies rulemaking. These requirements address
NTTF recommendations 4 and 7. This aspect of the proposed rule would
also address NTTF recommendation 11.1 regarding onsite emergency
resources to support multi-unit events with station blackout, including
the need to deliver equipment to the site despite degraded offsite
infrastructure. This provision currently is being implemented through
Order EA-12-049.
2. All the requirements that were within the scope of the Onsite
Emergency Response Capabilities rulemaking. These requirements address
NTTF recommendation 8, as directed by SRM-SECY-11-0137. This aspect of
this proposed rule also would address command and control issues in
NTTF recommendation 10.2.
3. Numerous requirements regarding onsite emergency response
actions being implemented by Order EA-12-049; in addition, NRC staff
has developed draft guidance to support the emergency response aspect
of this proposed rule. The specific regulatory actions related to
emergency response in this proposed rule and the associated NTTF
recommendations are:
a. Staffing and communications requirements: would address NTTF
recommendation 9.3; also discussed in NTTF recommendations 9.1 and 9.2.
These regulatory issues currently are being implemented through Order
EA-12-049. The proposed requirements also address supporting facilities
and equipment, as discussed in the same NTTF recommendations.
b. Multiple source term dose assessment requirements: would address
NTTF recommendation 9.3; also discussed in NTTF recommendation 9.1.
This regulatory issue is being implemented voluntarily by industry.
c. Training and exercise requirements: would address NTTF
recommendation 9.3; also discussed in NTTF recommendations 9.1 and 9.2.
These regulatory issues currently are being implemented through Order
EA-12-049.
Accordingly, this rulemaking would address all the justifiable
recommendations in NTTF recommendations 4, 7, 8, 9.1, 9.2, 9.3 (with
one exception--ERDS modernization is addressed, but maintenance of ERDS
capability throughout the accident is not addressed), 10.2, and 11.1.
This rulemaking also would address NTTF recommendation, 9.4:
modernize ERDS. This action differs from the other regulatory actions
because ERDS is not an essential component of a licensee's capability
to mitigate a beyond-design-basis external event. However, ERDS is an
important form of communication between the licensee and the NRC.
Modernization of ERDS has been completed voluntarily by industry;
therefore, NRC has included amendments to remove the technology-
specific references in 10 CFR part 50, appendix E, section VI,
``Emergency Response Data System,'' in this proposed rule.
SAMG Implementation
Unlike the requirements for the mitigation of beyond-design-basis
external events imposed by Order EA-
[[Page 70616]]
12-049, and requirements that address the loss of large areas of the
plant due to explosions and fire in current Sec. 50.54(hh)(2) (NRC is
proposing in this rule to move these requirements to a new section),
SAMGs are not an NRC requirement imposed on licensees. Nevertheless,
SAMGs are well established guidance documents that have been developed
by the nuclear power industry with substantial NRC involvement, have
been implemented by every operating nuclear power reactor licensee for
decades, and are the subject of a license condition for combined
licenses. Following the Three Mile Island (TMI) accident in 1979, the
nuclear power industry revised its emergency response procedures to be
symptom-based, and as a result, developed EOPs. In the mid-to-late
1980s, the NRC and the nuclear power industry identified a need to
consider plant conditions that could lead to a severe accident. These
efforts led to the nuclear industry voluntarily initiating a
coordinated program on severe accident management in 1990. Section 5 of
Nuclear Energy Institute (NEI) 91-04 (formerly Nuclear Management and
Resources Council (NUMARC) 91-04), Revision 1, ``Severe Accident
Closure Guidelines,'' describes the elements of the industry's severe
accident management closure actions. The program involves the
development of: (1) A structured method by which utilities could
systematically evaluate and enhance their ability to deal with
potential severe accidents, (2) vendor-specific SAMGs for use by
licensees in developing plant-specific SAMGs, and (3) guidance and
material to support utility activities related to training for severe
accidents. In 1992, the Electric Power Research Institute (EPRI)
developed the SAMG Technical Basis Report (TBR). Volume one of this
report covers general actions that could be taken to manage a severe
accident (referred to as SAMG candidate high level actions) and their
effects, and volume two is a detailed report on the physics of accident
progression. By letter dated June 20, 1994, the NRC accepted the
industry's approach for mitigating the consequences of severe
accidents, including licensee regulatory commitments to implement
plant-specific SAMGs, using the guidance developed in section 5 of NEI
91-04, Revision 1, by December 31, 1998.
The NRC assessed the ongoing implementation of SAMGs at a select
number of plants during the 1997-1998 time frame as discussed in SECY-
97-132, ``Status of the Integration Plan for Closure of Severe Accident
Issues and the Status of Severe Accident Research,'' and SECY-98-131,
``Status of the Integration Plan for Closure of Severe Accident Issues
and the Status of Severe Accident Research,'' and concluded that the
results of the voluntary initiative achieved the NRC's overall
objectives established for accident management in SECY-89-012, ``Staff
Plans for Accident Management Regulatory and Research Programs.'' In
2012, EPRI revised the TBR to account for the initial lessons learned
from the Fukushima Dai-ichi accidents, as well as enhanced
understanding of severe accident behavior gained from additional
research and analyses performed since the original report was
published.
Following the events at Fukushima Dai-ichi, the NRC again inspected
the implementation, ongoing training, and maintenance of licensee SAMGs
at all power reactor sites, except those that had permanently ceased
operation, through performance of Temporary Instruction (TI)-2515/184,
``Availability and Readiness Inspection of Severe Accident Management
Guidelines (SAMGs).'' The NRC found that some licensees had not
maintained the SAMGs in accordance with the latest revisions of the
applicable industry generic technical guidelines nor conducted training
in a consistent and systematic manner. The NRC inspectors attributed
the inconsistent implementation and training on SAMGs to the voluntary
nature of this initiative.
Based in part on the findings of the inspections previously
described, the NTTF recommended that the NRC require licensees to
integrate onsite emergency response capabilities, including SAMGs.
Unlike the Mitigating Strategies Order requirements, which were
justified as necessary for adequate protection under Sec. 50.109,
SAMGs do not involve adequate protection. Because the imposition of
SAMGs also would not be necessary to bring licensees into compliance
with an existing NRC requirement, a SAMGs requirement would have to be
justified under Sec. 50.109 as a cost-justified, substantial increase
in protection of the public health and safety or common defense and
security.
In the regulatory analysis where the NRC considered an option to
require SAMGs (i.e., option 2 of the regulatory analysis including the
supporting proposed backfit justification), the NRC used available
quantified risk information that might provide risk insights to inform
the justification. In this regard, the NRC looked at its recent
technical analysis \1\ performed in support of the Containment
Protection and Release Reduction (CPRR) rulemaking regulatory basis.\2\
This analysis is relevant because it examined regulatory alternatives
that would be implemented after core damage to determine whether any of
the contemplated approaches can be justified under the NRC's
backfitting provisions. In this respect, the risk insights stemming
from this work might have relevance to NRC's consideration of SAMG
requirements where the safety benefits would occur after core damage.
The NRC also considered other post-Fukushima regulatory efforts (e.g.,
the safety benefits due to implementation of Order EA-12-049 mitigation
strategies, which result in a reduction in core damage frequency)
within this technical analysis. The NRC acknowledges that the work to
support the CPRR rulemaking was not conducted to provide a complete
quantitative measure of the possible safety benefits of SAMG
requirements, particularly with regard to how SAMGs might benefit
maintenance of containment integrity or support more informed
protective action recommendations by the emergency response
organization following core damage. However, this technical analysis
work does provide valuable risk insights that the NRC concluded were
important to fully inform the decision on this matter, and that
additionally influenced the NRC's development of the SAMG framework
considered in the regulatory analysis.
---------------------------------------------------------------------------
\1\ The technical risk insights were presented to the ACRS
Reliability and PRA, and Fukushima subcommittees on August 22, 2014,
and to the ACRS Reliability and PRA subcommittee on November 19,
2014. This footnote is informational only; it does not imply
advisory committee endorsement of the technical analysis.
\2\ Refer to the draft regulatory basis for Containment
Protection and Release Reduction.
---------------------------------------------------------------------------
The CPRR technical analysis includes a screening for a conservative
high estimate of frequency-weighted individual latent cancer fatality
risk. This screening analysis combined the highest ELAP frequency among
all boiling water reactors (BWRs) with Mark I or Mark II containments,
a success probability in the FLEX equipment \3\ of 0.6 per demand
following core melt, the highest conditional individual latent cancer
fatality (ILCF) risk among all BWRs with Mark I or Mark II
containments, and a worst case re-habitability assumption. This yields
a conservative high estimate of frequency-weighted individual latent
[[Page 70617]]
cancer fatality risk of approximately 7 x 10 -8 per reactor
year. This combination of assumptions does not exist at any BWR with a
Mark I or Mark II containment. This conservative estimate of the risk
can be viewed as the maximum possible risk that could be removed or
reduced through regulatory action (i.e., the CPRR technical analysis
examines a range of post-core damage regulatory actions for BWRs with
Mark I or Mark II containments to identify whether any of these
proposals might result in a safety benefit large enough to be justified
under the Commission's backfitting requirements). This estimate is
compared against the quantitative health objective, which is a
quantitative measure that equates to \1/10\ of 1 percent of the ILCF
risk and relates to the Commission's Safety Goal Policy. This
quantitative metric for the individual latent cancer fatality risk is
approximately 2 x 10-6 per reactor year. This technical work
shows that the risk is well below a level that equates to \1/10\ of 1
percent of the surrounding population's latent cancer fatality risk.
This result also means, that, from a quantitative standpoint, achieving
risk reductions that might satisfy backfitting requirements is very
unlikely. More refined risk estimates from the same work (i.e., which
remove the worst case assumptions and instead use assumptions specific
to each power reactor), push this potential risk benefit significantly
lower, by approximately two orders of magnitude. This result
demonstrates the benefits of the NRC's regulations to both effectively
keep the frequency of core damage very low at BWRs with Mark I and II
containments, and to ensure through emergency preparedness requirements
that the surrounding population is adequately protected. Those general
attributes of the NRC's regulations that result in this risk insight
(i.e., requirements that resulted in reduced core damage frequencies
and effective emergency preparedness requirements) apply to all power
reactor designs. The NRC has not performed a comprehensive quantitative
analysis of the potential safety benefits of SAMG requirements for all
types of reactors. However, the general risk insights obtained from the
CPRR work align well with NUREG-1935, ``State-of-the-Art Reactor
Consequence Analyses (SOARCA) Report,'' (November 2012), which shows
very low levels of risk (e.g., individual early fatality risk is
essentially zero, ILCF risk is thousands of times lower than the NRC
Safety Goal, and millions of times lower than the general cancer
fatality risk in the United States from all causes). As such, the
available risk insights point to the likely outcome that a
comprehensive quantitative analysis, where the proposed regulatory
action is intended to provide its safety benefit in the post-core
damage environment (as is the case for use of SAMGs), would not
demonstrate a substantial safety benefit. In addition, for the specific
case of the consideration of SAMG requirements in this proposed rule,
the proposed regulatory action's benefit must also recognize that
imposing SAMG requirements must be compared with the current regulatory
state, (i.e., SAMGs) exist and are voluntarily in use under an industry
initiative.
---------------------------------------------------------------------------
\3\ Refer to NEI 12-06, Revision 0, ``Diverse and Flexible
Coping Strategies (FLEX) Implementation Guide,'' for a description
of industry-developed guidance on FLEX strategies and equipment.
---------------------------------------------------------------------------
Along with its quantitative analysis, the Commission considered a
proposed SAMG backfit analysis that relied on qualitative factors,
relating SAMGs to defense-in-depth. The Commission concluded that the
imposition of SAMG requirements was not warranted as it did not meet
the substantial additional protection criteria under 10 CFR
50.109(a)(3), and consequently SAMGs will continue to be implemented
and maintained through a voluntary industry initiative. The Commission
notes that the industry indicated it would strengthen its voluntary
initiative for SAMGs in its letter dated May 11, 2015.
Scope of Procedure and Guideline Integration
This rulemaking limits the scope of the integrated response
capability to two guideline sets. This proposed rule includes these new
provisions:
1. Sec. 50.155(b)(1), resulting from Order EA-12-049, and
addressing beyond-design-basis external events; these requirements are
those that the NRC termed in previous regulatory basis interactions as
``Station Blackout Mitigation Strategies.'' The nuclear industry refers
to these as ``FLEX Support Guidelines'' (FSGs).
2. Sec. 50.155(b)(2) (current Sec. 50.54(hh)(2)). These
requirements are defined in NEI 06-12, Revision 2, ``B.5.b Phase 2 & 3
Submittal Guideline,'' as a subset of the strategies and guidelines for
addressing the loss of large areas of the plant due to explosions and
fires and are termed ``Extensive Damage Mitigation Guidelines.'' The
NRC proposes to expand the scope of the generic term ``EDMGs'' to
include all of the strategies and guidelines used to implement Sec.
50.54(hh)(2).
The NRC is proposing this integrated response capability structure
to avoid unnecessarily revisiting the existing symptom-based EOPs that
were developed following the TMI accident. The NRC has determined that
current regulations addressing EOPs, which include the quality
assurance requirements of criterion V, ``Instructions, Procedures, and
Drawings,'' and criterion VI, ``Document Control,'' in appendix B to 10
CFR part 50, and the administrative controls section of the technical
specifications for each plant as well as the guidance provided in
regulatory guides and technical reports (e.g., NUREG-0660, ``NRC Action
Plan Developed as a Result of the TMI-2 Accident,'' issued May 1980;
NUREG-0737, ``Clarification of TMI Action Plan Requirements,'' issued
November 1980; and NUREG-0711, ``Human Factors Engineering Program
Review Model,'' issued November 2012) provide sufficient regulation and
control of the EOPs to provide reasonable assurance of adequate
protection of public health and safety. In addition, the EOPs are the
subject of a national consensus standard (American National Standards
Institute/American Nuclear Society 3.2 1994, ``Administrative Controls
and Quality Assurance for the Operational Phase of Nuclear Power
Plants''). In order to avoid the unnecessary regulatory burden that
would result by restructuring the EOPs, proposed Sec. 50.155(b)(3)
would require that the FSGs, and EDMGs be integrated with the EOPs,
rather than moving the requirements for EOPs to Sec. 50.155.
Guideline Sets Excluded From This Proposed Rule
During the development of this proposed rule, other guideline sets
were considered for inclusion within the integrated response
capability. The guideline sets considered included fire response
procedures, alarm response procedures (ARPs), and abnormal operating
procedures (AOPs).
Similar to the EOPs, ARPs and AOPs are subject to existing NRC
regulations (e.g., 10 CFR part 50, appendix B, criteria V and VI) that
adequately ensure integration with other procedure sets in use at power
reactors. These procedures have been used by operating power reactor
licensees in actual and simulated events for many years; any further
integration effort to address potential issues would likely have
already been identified and corrected by existing processes (or will be
identified and corrected under the quality assurance program).
The issue of whether to include fire response procedures in the
scope of proposed Sec. 50.155(b) was initially raised as
recommendation 1.g. by the ACRS in its letter to the then-Chairman
Jaczko dated October 13, 2011, ``Initial ACRS Review of: (1) The NRC
Near-Term Task
[[Page 70618]]
Force Report on Fukushima and (2) Staff's Recommended Actions to be
Taken Without Delay.'' That letter expressed the ACRS view that:
[The] efforts to integrate the onsite emergency response
capabilities should be expanded to include the plant fire response
procedures. These procedures provide operator guidance for coping
with fires that are beyond a plant's original design basis. Some
plant-specific fire response procedures instruct operators to
manually de-energize major electrical buses and realign fluid
systems in configurations that may not be consistent with the
guidance or expectations in the EOPs. Experience from actual fire
events has shown that parallel execution of fire procedures,
Abnormal Operating Procedures (AOPs), and EOPs can be difficult and
can introduce operational complexity. Therefore, these procedures
should also be included in the comprehensive efforts to better
coordinate and integrate operator responses during challenging plant
conditions.
This recommendation was reiterated in the ACRS letter of November
8, 2011, ``ACRS Review of Staff's Prioritization of Recommended Actions
to Be Taken in Response to Fukushima Lessons Learned (SECY-11-0137).''
In SECY-12-0025, enclosure 3, the NRC documented the formal process
used in evaluating additional recommendations that were made by the
ACRS as follows:
The staff developed a process to disposition all additional
issues, including recommendations by the ACRS. All issues are
reviewed by a panel of senior-level advisors from different NRC
program offices. The panel determines whether each issue represents
a valid safety concern, and whether there is a clear nexus to the
Fukushima Dai-ichi accident. If neither criterion is met, or only
one criterion is met, the panel chooses to either disposition the
issue with no action, or direct it to one of the NRC's existing
regulatory processes (e.g., generic issue process). If both criteria
are met, the issue is forwarded for further consideration by the
cognizant technical staff in the appropriate NRC line organization.
Should the issue go forward, the cognizant technical staff is tasked
with developing a proposal for Steering Committee (SC) disposition.
The SC may elect to take no further action, disposition the issue
using an existing NRC process, or prioritize the issue as a Tier 1,
2, or 3 item under the Japan Lessons-Learned Program.
By letter dated February 27, 2012, the NRC responded to the ACRS
recommendations of October 13, 2011, and November 8, 2011, discussing
the disposition of ACRS recommendation 1.g. as follows:
The NRC staff evaluated how to appropriately integrate the fire
response procedure into a licensee's onsite emergency response
capabilities and determined that the fire response procedures would
be best considered with the agency's Tier 3 actions associated with
NTTF Recommendation 3.
This disposition of the ACRS recommendation also was documented in
SECY-12-0025. In its letter of March 13, 2012, the ACRS acknowledged
that the formal screening process used by the NRC for additional
recommendations was acceptable, but nevertheless expressed the view
that integration of the fire response procedures presents similar
challenges to those associated with the integration of other guideline
sets such as the EDMGs with the EOPs. Accordingly, the ACRS recommended
that the integration effort should address fire response procedures as
part of NTTF recommendation 8 rather than as a seismic-induced-fire
issue under NTTF recommendation 3.
Recognizing the continued ACRS interest in the integration of fire
response procedures with onsite emergency actions and the existence of
an additional program of work to be taken up on the ACRS
recommendation, the NRC has concluded that the reasoning underlying the
initial prioritization of ACRS recommendation 1.g was sound and it
would be inappropriate to include fire response procedure integration
within this rulemaking effort. The NRC offers the following reasons for
the exclusion of firefighting strategies and procedures from the scope
of integration in this rulemaking:
1. The NRC-required fire protection program is designed to function
autonomously from other ongoing activities and is implemented by a fire
brigade that is manned in all modes of operation and is well-trained.
Firefighting activities are led by personnel knowledgeable of overall
plant operations, including the equipment necessary for safe shutdown
of the plant. These personnel communicate with the main control room in
order to prioritize and deconflict activities.
2. Comprehensive firefighting strategies and implementing
procedures have been developed for each area of the plant and fire
brigade qualified individuals participate in drills on a quarterly
basis to demonstrate proficiency with the use of these strategies and
procedures in the context of concurrent use of other, non-integrated
procedures throughout the plant.
3. The EOPs, EDMGs, and FSGs account for equipment lost due to
concurrent fires during events by providing alternate methods to
accomplish the functions the equipment was to have performed.
C. Proposed Rule Organization
To accomplish the NRC's rulemaking objectives in a manner
consistent with the described scope, this proposed rule has been based
on these precepts:
1. The central requirement would be an integrated response
capability that includes currently existing procedures and guideline
sets. Additional requirements would support this integrated response
capability.
The mitigation strategies under Order EA-12-049 established the
basic framework for broader capability to mitigate beyond-design-basis
external events that impact an entire reactor site. This framework
includes: Supporting drills, training, change control, staffing,
communications capability, multiple source term dose assessment
capability, and command and control. As a result, the proposed new
Sec. 50.155 is structured to have:
1. Integrated response requirements in paragraph (b).
2. Supporting equipment requirements in paragraph (c) that include
equipment required by both Order EA-12-049 and Order EA-12-051.
3. External hazard equipment protection requirements in paragraph
(c) that reflect the hazard information developed under the Sec.
50.54(f) letter of March 12, 2012.
4. Supporting training, drills, and change control requirements in
paragraphs (d), (e), and (f).
5. Implementation requirements that establish compliance deadlines
in paragraph (g).
In addition to proposed Sec. 50.155, this proposed rulemaking is
structured to have (1) supporting power reactor operating license
application requirements (under either 10 CFR parts 50 or 52 processes)
in the appropriate content of applications portions, and (2)
requirements that relate to enhanced onsite emergency response
capabilities located in appendix E to 10 CFR part 50, to include a new
section VII.
The proposed requirements previously described would apply to both
current licensees and new applicants (under either 10 CFR parts 50 or
52) as established by proposed paragraph Sec. 50.155 (a). Finally,
this proposed rule contains provisions to facilitate power reactor
decommissioning.
D. Proposed Rule Regulatory Bases
Applicability
This proposed rule would apply, in whole or in part, to applicants
for and holders of an operating license for a nuclear power reactor
under 10 CFR
[[Page 70619]]
part 50, or combined license under 10 CFR part 52.
This proposed rule would not apply to applicants for, or holders
of, an operating license for a non-power reactor under 10 CFR part 50.
Non-power reactor licensees would not be subject to this proposed rule
because non-power reactors pose lower radiological risks to the public
from accidents than do power reactors because: (1) The core
radionuclide inventories in non-power reactors are lower than in power
reactors as a result of their lower power levels and often shorter
operating cycle lengths; and (2) non-power reactors have lower decay
heat associated with a lower risk of core melt and fission product
release in a loss-of-coolant accident than power reactors.
A holder of a general or specific 10 CFR part 72 independent spent
fuel storage installation (ISFSI) license for dry cask storage would
not be subject to this proposed rule for the ISFSI, because the decay
heat load of the irradiated fuel would be sufficiently low prior to
movement to dry cask storage that it could be air-cooled. This would
meet the proposed sunsetting criteria (discussed later in this section
of this document).
The GE Morris facility in Illinois, which is the only spent fuel
pool licensed under 10 CFR part 72 as an ISFSI would not need to comply
with this proposed rule because it is excluded by the rule
applicability described in proposed Sec. 50.155(a). The NRC considered
including the GE Morris facility within the scope of this proposed rule
but found that the age (and corresponding low decay heat load) of the
fuel in the facility made it unnecessary. The GE Morris facility also
would meet this proposed rule's sunsetting criteria. While this
proposed rule would leave in force the requirements of the current
Sec. 50.54(hh)(2), those requirements are not applicable to GE Morris
due to its status as a non-10 CFR part 50 licensee. In the course of
the development and implementation of the guidance and strategies
required by the current Sec. 50.54(hh)(2), the NRC evaluated whether
additional mitigation strategies were warranted at GE Morris and
concluded that no mitigating strategies were warranted beyond existing
measures, due to the extended decay time since the last criticality of
the fuel stored there, the resulting low decay heat levels, and the
assessment that a gravity drain of the GE Morris SFP is not possible
due to the low permeability of the surrounding rock and the high level
of upper strata groundwater.
This proposed rule would establish a ``sunsetting'' or phased
removal of requirements for licensees of decommissioning power
reactors. Licensees would not need to meet requirements that relate to
the reactor source term and associated fission product barriers once
all fuel has been permanently removed from the reactor vessel and
placed in the spent fuel pool. This proposed rule would require
secondary containment for reactor designs that employ this feature as a
fission product barrier for the spent fuel pool source term.
Once the NRC has docketed a licensee's Sec. 50.82(a)(1) or Sec.
52.110(a) certification of permanent removal of fuel from the reactor
vessel and certification of permanent cessation of operations, that
licensee would not be subject to requirements to have mitigation
strategies and guidelines for maintaining or restoring core cooling and
containment capabilities. As discussed previously, these proposed
requirements are based on Order EA-12-049. The licensees for the
Kewaunee Power Station, Crystal River Unit 3 Nuclear Generating Plant,
San Onofre Nuclear Generating Station, Units 2 and 3, and Vermont
Yankee Nuclear Power Station, submitted Sec. 50.82(a)(1)
certifications after issuance of Order EA-12-049; the NRC has rescinded
Order EA-12-049 to this group of NPP licensees (Shutdown NPP Group).
These rescissions were based on the NRC's conclusion that the lack of
fuel in the licensee's reactor core and the absence of challenges to
the containment rendered unnecessary the development of guidance and
strategies to maintain or restore core cooling and containment
capabilities. Consistent with these rescissions, the NRC proposes to
relieve licensees in decommissioning from the requirement to comply
with proposed requirements to have mitigation strategies and guidelines
to maintain or restore core cooling and containment capabilities.
Moreover, these licensees would not need to comply with any of the
other requirements in this proposed rule that support compliance with
the proposed requirement to have mitigation strategies and guidelines
for maintaining or restoring core cooling and containment capabilities.
This proposed rule treats the EDMG requirements in a manner similar
to the requirements for FSGs. For a licensee who has Sec. 50.82(a)(1)
or Sec. 52.110(a) certifications docketed at the NRC, the lack of fuel
in their reactor core and the absence of challenges to the containment
would render unnecessary EDMGs for core cooling and containment
capabilities. This licensee would not need to comply with any
requirements in this proposed rule associated with core cooling or
containment capabilities; rather, the licensee would be required to
comply with the proposed requirement to have EDMGs as based on the
presence of fuel in the spent fuel pool.
Once the NRC has docketed a licensee's Sec. 50.82(a)(1) or Sec.
52.110(a) certifications, that licensee would not need to comply with
the requirement proposed by this rule that the equipment relied on for
the mitigation strategies include reliable means to remotely monitor
wide-range spent fuel pool levels to support effective prioritization
of event mitigation and recovery actions. This proposed requirement is
based on the requirements in Order EA-12-051. This order requires a
reliable means of remotely monitoring wide-range SFP levels to support
effective prioritization of event mitigation and recovery actions in
the event of a beyond-design-basis external event with the potential to
challenge both the reactor and SFP.
The NRC has also rescinded Order EA-12-051 for the Shutdown NPP
Group mentioned previously. These rescissions were based, in part, on
the NRC's conclusions that once a licensee certifies the permanent
removal of the fuel from its reactor vessel, the safety of the fuel in
the SFP becomes the primary safety function for site personnel. In the
event of a challenge to the safety of fuel stored in the SFP, decision-
makers would not have to prioritize actions and the focus of the staff
would be the SFP condition. Therefore, once fuel is permanently removed
from the reactor vessel, the basis for the Order EA-12-051 would no
longer apply. Consistent with the NRC order rescissions, the NRC
proposes to no longer require licensees in decommissioning to have a
reliable means to remotely monitor wide-range spent fuel pool levels to
support effective prioritization of event mitigation and recovery
actions in the event of a beyond-design-basis external event with the
potential to challenge both the reactor and SFP.
Once the NRC has docketed a licensee's Sec. 50.82(a)(1) or Sec.
52.110(a) certifications, that licensee would not need to comply with
the requirements in proposed Section VII, ``Communications and Staffing
Requirements for the Mitigation of Beyond Design Basis Events,'' in 10
CFR part 50, appendix E. These proposed requirements are based on the
March 12, 2012, Sec. 50.54(f) letters that requested operating power
reactor licensees to perform, among other things, emergency
preparedness communication and
[[Page 70620]]
staffing evaluations for prolonged loss of power events consistent with
NTTF recommendation 9.3. Once the licensees for the Shutdown NPP Group
were no longer operating power reactors, they informed the NRC that
they would no longer proceed with implementing recommendation 9.3. In
response to the filings, the NRC determined that, for beyond-design-
basis external events challenging the safety of the spent fuel at the
Shutdown NPP Group:
recovery and mitigation actions could be completed over a long
period of time due to the slow progression of any accident as a
result of the very low decay heat levels present in the pool within
a few months following permanent shutdown of the reactor. Thus,
spent fuel pool beyond design basis accident scenarios at
decommissioning reactor sites do not require the enhanced
communication and staffing that may be necessary for the reactor-
centered events the 50.54(f) letter addresses.\4\
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\4\ See the ``Availability of Documents'' section of this
document for the NRC letters to the licensees for Kewaunee Power
Station, Crystal River Unit 3 Nuclear Generating Plant, San Onofre
Nuclear Generating Station, Units 2 and 3, and Vermont Yankee
Nuclear Power Station.
Order EA-12-049 also required power reactor licensees to have
certain spent fuel pool cooling capabilities. In the rescission letters
to the licensees for the Shutdown NPP Group, the NRC determined that,
due to the passage of time, the fuel's low decay heat and the long time
to boil off the water inventory in the spent fuel pool obviated the
need for the Shutdown NPP Group licensees to have guidance and
strategies necessary for compliance with Order EA-12-049. The
rescission of Order EA-12-049 for those licensees eliminated the
requirement for them to comply with the Order's requirements concerning
beyond-design-basis event strategies and guidelines for spent fuel pool
cooling capabilities. Consistent with the basis for the Order
rescissions, licensees in decommissioning could be relieved from the
proposed requirements concerning beyond-design-basis event strategies
and guidelines for spent fuel pool cooling capabilities and any related
requirements. These licensees would have to perform and retain an
analysis demonstrating that sufficient time has passed since the fuel
within the spent fuel pool was last irradiated such that the fuel's low
decay heat and boil-off period provide sufficient time for the licensee
to obtain offsite resources to sustain the spent fuel pool cooling
function indefinitely. Licensees could make use of the equipment in
place for EDMGs should that equipment be available, recognizing that
the protection for that equipment is against the hazards posed by
events that result in losses of large areas of the plant due to fires
or explosions rather than beyond-design-basis external events resulting
from natural phenomena. If the EDMG equipment is not available, the
offsite resources would be used by the licensee for only onsite
emergency response (i.e., spent fuel pool cooling). This proposed
amendment would not impact any commitments licensees have made
regarding exemptions from offsite emergency planning requirements,
which consider a beyond-design-basis event that could result in a
zirconium cladding fire due to a loss of SFP inventory and do not
consider offsite resources in mitigation strategies.
The NRC proposes to maintain the EDMGs requirement, because an
event for which EDMGs would be required is not based on the condition
of the fuel, but may instead result from aircraft impact and a beyond-
design-basis security event which could introduce kinetic energy into
the spent fuel pool independent from the decay heat of the fuel. These
types of events and their potential consequences were considered as a
part of the rulemaking dated March 7, 2009, on Power Reactor Security
Requirements (74 FR 13926). In the course of that rulemaking, the NRC
took into account stakeholder input and determined that it would be
inappropriate to apply the EDMG requirements to permanently shutdown
and defueled reactors where the fuel was removed from the site or moved
to an ISFSI. However the resulting rule was written to remove the EDMG
requirements once the certifications of permanent cessation of
operations and removal of fuel from the reactor vessel were submitted
rather than upon removal of fuel from the SFP. The NRC proposes to
correct this error from the 2009 final rule in this proposed rule as
explained in the ``EDMGs'' portion of this section.
The NRC proposes to exclude from proposed Sec. 50.155, the
licensee for Millstone Power Station Unit 1, Dominion Nuclear
Connecticut, Inc. Dominion Nuclear Connecticut, Inc. is also the
licensee for Millstone Power Station Units 2 and 3, but this exclusion
would apply to Dominion Nuclear Connecticut, Inc. in its capacity as
licensee for only Unit 1, which is not operating but has irradiated
fuel in its spent fuel pool and satisfies the proposed criteria for not
having to comply with this proposed rule except for the EDMG
requirements. In the course of the development and implementation of
the guidance and strategies required by current Sec. 50.54(hh)(2), the
NRC evaluated whether additional mitigation strategies were warranted
at Millstone Power Station Unit 1 and concluded that no mitigating
strategies were warranted beyond existing measures, principally due to
the extended decay time since the last criticality there on November 4,
1995, and the resulting low decay heat levels allowing sufficient time
for the use of existing strategies augmented by mitigation strategies
existing in 2005. The exclusion for Millstone Power Station Unit 1 in
this proposed rule is based upon that conclusion, recognizing that
additional mitigating capabilities will be present due to the
implementation of the Sec. 50.54(hh)(2) strategies at the collocated
Millstone Power Station Units 2 and 3.
In contrast to Millstone Power Station Unit 1, the Shutdown NPP
Group licensees were issued license conditions for the mitigating
strategies corresponding to the Sec. 50.54(hh)(2) strategies. These
license conditions are condition 2.C.(10) to Renewed Operating License
No. DPR-43 for Kewaunee Power Station, condition 2.C.(14) to Facility
Operating License No. DPR-72 for Crystal River Unit 3 Nuclear
Generating Plant, condition 2.C.(26) to Facility Operating License NPF-
10 for San Onofre Nuclear Generating Station Unit 2, condition 2.C.(27)
to Facility Operating License NPF-15 for San Onofre Nuclear Generating
Station Unit 3, and condition 3.N to Renewed Operating License No. DPR-
28 for Vermont Yankee Nuclear Power Station. Those licensees and future
power reactor licensees that enter decommissioning would have the
burden to show that operation in a decommissioning status with
irradiated fuel in the spent fuel pool without the EDMG license
condition or the proposed requirement to comply with the proposed EDMG
requirement would provide adequate protection of public health and
safety.
Integrated Response Capability
Each applicant or licensee subject to the proposed requirements
would be required to develop, implement, and maintain an integrated
response capability that includes FSGs, EDMGs, EOPs, sufficient
staffing, and a supporting organizational structure with defined roles,
responsibilities, and authorities for directing and performing these
strategies, guidelines, and procedures.
As discussed in the NTTF Report, EOPs have long been part of the
NRC's safety requirements. The NRC regulations address them through the
quality assurance requirements of
[[Page 70621]]
criterion V and criterion VI in appendix B to 10 CFR part 50, and in
the administrative controls section of the technical specifications for
each plant. Following the accident at TMI Unit 2, EOPs were upgraded to
address human factors considerations in order to improve human
reliability including the operator's ability to mitigate the
consequences of a broad range of initiating events and subsequent
multiple failures without the need to diagnose specific events. In
other words, EOPs were modified from their previous event-driven nature
to be symptom-based. Numerous subsequent regulatory guides (RGs) and
technical reports (e.g., NUREG-0660, NUREG-0737, and NUREG-0711) also
address EOPs. In addition, the EOPs are the subject of a national
consensus standard (American National Standards Institute/American
Nuclear Society 3.2-2012, ``Administrative Controls and Quality
Assurance for the Operational Phase of Nuclear Power Plants''). The
subject matter for the initial and requalification training, written
exam, and operating test for reactor operators and senior reactor
operators also includes the EOPs. While implementing EOPs, the event
command and control functions remain in the control room under the
direction of the senior licensed operator on shift.
The nuclear industry developed EDMGs following the terrorist events
of September 11, 2001, in response to security advisories, orders, and
license conditions issued by the NRC that required licensees to develop
and implement guidance and strategies intended to maintain or restore
core cooling and containment and spent fuel pool cooling capabilities
under the circumstances associated with the loss of large areas of the
plant due to fire or explosion. The EDMGs further extend the range of
initiating events and plant damage states for which strategies and
guidelines are available for use by operators to include the loss of
large areas of the plant and a subsequent impairment of the operability
and functionality of structures, systems and components that are within
that area. NEI 06-12, ``B.5.b Phase 2&3 Submittal Guideline,'' Revision
2, December 2006 (the NRC-endorsed guidance for the requirements
associated with EDMGs) provides appropriate coordination of the EDMGs
with the voluntarily maintained SAMGs through its guidance that the
EDMGs ``must be interfaced with existing SAMGs so that potential
competing considerations associated with implementing these and other
strategies are appropriately addressed.''
Based upon these considerations, the NTTF recommended that the NRC
require licensees to further integrate EOPs, SAMGs and EDMGs, including
a clarification of transition points, command and control, decision
making, and rigorous training that includes conditions that are as
close to real accident conditions as feasible.
Subsequent to issuance of the NTTF Report, the range of initiating
events and plant damage states for which strategies and guidelines are
available for use by operators was further extended through the
development of mitigating strategies for beyond-design-basis external
events in response to Order EA-12-049. The development and
implementation of this set of strategies and guidelines was
accomplished with the knowledge of the existence of the other NTTF
recommendations and took them into account to the extent practical. In
order to provide better integration with the EOPs, the resulting
strategies and guidelines (FSGs) leave the designation of command and
control and decision-making functions within the EOPs or SAMGs, as
maintained under the voluntary industry initiative, as appropriate. As
recommended in the NTTF Report, this proposed rule would require that
EDMGs and FSGs be integrated with EOPs, consistent with the expectation
that EOPs remain the central element of a licensee's initial response
capability.
In establishing a requirement for a response capability that
encompasses the use of EOPs, EDMGs, and FSGs, the NRC considered the
fact that these strategies, guidelines and procedures were, and are
currently being, developed at separate times over a period of several
decades and that the associated efforts have been focused on responding
to different types of initiating events and plant damage states. As a
result, these strategies, guidelines and procedures may not properly
reflect consideration of the interfaces (e.g., procedure transitions),
dependencies (e.g., reliance on common systems or resources) and
interactions (e.g., alignment of response strategies) among strategies,
guidelines and procedures that may be used in combination, either
consecutively or concurrently, to mitigate a design-basis or beyond-
design-basis event.
Additionally, the NRC considered that these strategies, guidelines
and procedures are not used by a single licensee organizational unit
but will often require coordination and transfer of responsibilities
amongst licensee organizational units. For example, the EDMGs may be
implemented under conditions of loss of the main control room and
therefore initiated and directed by knowledgeable and available site
personnel until coordination and augmentation efforts enable transition
to a more stable command and control structure. The mitigation
strategies for extreme external events, though initiated by the main
control room complement of licensed operators, may require coordination
with and augmentation by offsite organizations. Further, and as noted
previously, there are potential accident scenarios in which a licensee
might employ strategies from more than one of these strategies,
guidelines and procedures during its response to an accident. One
plausible sequence is for an initial response to be under the EOPs,
supplemented by actions under the FSGs, and ultimately transition to
actions under the SAMGs, which are implemented under a voluntary
initiative. Such an accident progression would engage and require the
coordination of multiple licensee organizational units.
In light of the preceding considerations, this proposed rule would
require that the mitigating strategies, guidelines and procedures,
staffing, and supporting organizational structure be developed,
implemented, and maintained such that they function as an
``integrated'' response capability. The intent is to ensure that
applicants and licensees establish and maintain a functional capability
to produce a coordinated and logical response under a wide range of
accident conditions. The intent is not to require physical integration
(e.g., organizations need not be merged and strategies, guidelines and
procedures need not be combined), but rather to require a functional
integration of the elements of the response capability. To achieve this
functional integration, the NRC expects that applicants and licensees
would have addressed the interfaces, dependencies, and interactions
among the elements of their response capability such that elements work
together to support effective performance under the full range of
accident conditions. For example, functional integration of the
strategies, guidelines and procedures would ensure that transition
points are explicitly identified and conflicts between strategies are
eliminated to the extent practical. Functional integration of response
organizations would ensure that organizations working together to use
these strategies, guidelines, and procedures (e.g., to coordinate
actions or provide support) have clearly defined lines of communication
between the
[[Page 70622]]
organizations, as well as clearly defined authorities and
responsibilities relative to each other, such that there are no gaps or
conflicts.
The proposed requirements for FSGs would make generically-
applicable requirements previously imposed on licensees by Order EA-12-
049, for Virgil C. Summer Nuclear Station Units 2 and 3 by license
condition as described in Memorandum and Order CLI-12-09,\5\ and for
Enrico Fermi Nuclear Plant Unit 3, License No. NPF-95, by license
condition 2.D.(12)(g). These proposed requirements would provide
additional defense-in-depth measures that increase the capability of
nuclear power plant licensees to mitigate consequences of beyond-
design-basis external events. Consistent with Order EA-12-049 and
associated license conditions, these proposed provisions would be made
generically-applicable in recognition that beyond-design-basis events
have an associated significant uncertainty, and that the NRC concluded
additional measures were warranted in light of this uncertainty.
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\5\ Summer, CLI-12-09, 75 NRC at 440, and the V.C. Summer Unit 2
license, License No. NPF-93, Condition 2.D.(13) and V.C. Summer Unit
3 license, License No. NPF-94, Condition 2.D.(13).
---------------------------------------------------------------------------
The proposed FSG strategies and guideline requirements are intended
to mitigate consequences of beyond-design-basis external events from
natural phenomenon that result in an ELAP concurrent with either a loss
of normal access to the ultimate heat sink, or for passive reactor
designs, a loss of normal access to the normal heat sink. Recognizing
that beyond-design-basis external events are fundamentally unbounded,
and that these events can result in a multitude of damage states and
associated accident conditions, a significant regulatory challenge is
developing bounded requirements that meaningfully address the
regulatory issue. From a practical standpoint, development of
mitigation strategies requires that there be some definition (or
boundary conditions established) for an onsite damage state for which
the strategies would then address and thereby provide an additional
capability to mitigate beyond-design-basis external event conditions
that might occur. The damage state should ideally be representative of
a large number of potential damage states that might occur as a result
of extreme external events, and it should present an immediate
challenge to the key safety functions, so that the resultant strategies
actually improve safety. The assumed damage state for this proposed
rule is the same as that assumed to implement the requirements of EA-
12-049, attachment 2 for currently operating power reactors: An ELAP
condition concurrent with loss of normal access to the ultimate heat
sink (LUHS). This assumed damage state is effective at immediately
challenging the key safety functions following a beyond-design-basis
external event (i.e., core cooling, containment and spent fuel pool
cooling). Requiring strategies to maintain or restore these key
functions under such circumstances would result in an additional
mitigation capability consistent with the Commission's objective when
it issued Order EA-12-049.
This proposed rule would not be prescriptive in terms of the
specific set of initial and boundary conditions assumed for the ELAP
and LUHS condition, recognizing that the damage state for current
operating reactors, defined in more detail in draft regulatory guidance
for this proposed rule (DG)-1301, ``Flexible Mitigation Strategies for
Beyond-Design-Basis Events,'' reflects current operating power reactor
designs and the reliance of those designs on ac power, while the
assumed damage state for a future design may be different depending
upon the design features. Specifically, this damage state was
implemented through the assumption of the ELAP to the onsite emergency
ac buses, but did allow for ac power from the inverters to be assumed
available in order to establish event sequence and the associated times
for when mitigation actions would be assumed to be required. To address
the Order EA-12-049 requirement for an actual loss of all ac power,
including ac power from the batteries (through inverters),
contingencies are included in the mitigation strategies to enable
actions to be taken under those circumstances (e.g., sending operators
to immediately take manual control over a non ac-powered core cooling
pump). As such, this proposed provision is meant to make generically-
applicable the current implementation under EA-12-049 (i.e., there is
no intent to either relax or impose new requirements), and be
performance-based to allow some flexibility for future designs. As an
example, some reactor designs (e.g., Westinghouse AP1000 and General
Electric Economic Simplified Boiling Water Reactor (ESBWR)) use passive
safety systems to meet NRC requirements for maintaining key safety
functions. The inherent design of those passive safety systems makes
certain assumptions, such as loss of access to the ultimate heat sink,
not credible. Accordingly, the assumed condition for the FSG
requirements for passive reactors is the loss of normal access to the
normal heat sink, discussed further in this section. Nevertheless, in
this proposed rule the NRC is requiring that the strategies and
guidelines be capable of implementation during a loss of all ac power.
Regarding the assumed LUHS for combined licenses or applications
referencing the AP1000 or the ESBWR designs, the assumption was
modified to be a loss of normal access to the normal heat sink (see
attachment 3 to Order EA-12-049, Summer, CLI-12-09, 75 NRC at 440, the
V.C. Summer Unit 2 license, License No. NPF-93, Condition 2.D.(13), the
V.C. Summer Unit 3 license, License No. NPF-94, Condition 2.D.(13) and
Enrico Fermi Nuclear Plant Unit 3 License, License No. NPF-95,
Condition 2.D.(12)(g)). This modified language reflects the passive
design features of the AP1000 and the ESBWR that provide core cooling,
containment, and spent fuel cooling capabilities for 72 hours without
reliance on ac power. These features do not rely on access to any
external water sources for the first 72 hours because the containment
vessel and the passive containment cooling system serve as the safety-
related ultimate heat sink for the AP1000 design and the isolation
condenser system serves as the safety-related ultimate heat sink for
the ESBWR design.
As discussed previously, the range of beyond-design-basis external
events is unbounded. These proposed provisions are not intended, and
should not be understood to mean, that the mitigation strategies can
adequately address all postulated beyond-design-basis external events.
It is always possible to postulate a more severe event that causes
greater damage and for which the mitigation strategies may not be able
to maintain or restore the functional capabilities (e.g., meteorite
impact). Instead, the proposed requirements provide additional
mitigation capability in light of uncertainties associated with
external events, consistent with the NRC's regulatory objective when it
issued Order EA-12-049.
This proposed rule would require that the FSGs be capable of being
implemented site-wide. This recognizes that severe external events are
likely to impact the entire reactor site, and for multi-unit sites,
damage all the power reactor units on the site. This requirement means
that there needs to be sufficient equipment and supporting staff to
enable the core cooling, containment, and spent fuel pool
[[Page 70623]]
cooling functions to be maintained or restored for all the power
reactor units on the site. This is a distinguishing characteristic of
this set of mitigating strategies from those that currently exist for
Sec. 50.54(hh)(2), for which the damage state was a more limited,
albeit large area of a single plant, reflecting the hazards for which
that set of strategies was developed.
The NRC gave consideration to whether there should be changes made
to Sec. 50.63 to link those requirements with this proposed rule. This
consideration stemmed from recommendation 4.1 of the NTTF Report to
``initiate rulemaking to revise 10 CFR 50.63'' and the understanding
that this proposed rule could result in an increased station blackout
coping capability, in addition to the regulatory objective of the
proposed provisions, which is to provide additional beyond-design-basis
external event mitigation. Because of the substantive differences
between the requirements of Sec. 50.63 for licensees to be able to
withstand and recover from a station blackout and the proposed
requirements, the NRC determined that such a linkage was not necessary
and could lead to regulatory confusion.
The principal regulatory objective of Sec. 50.63 was to establish
station blackout coping durations for a specific scenario (i.e., loss-
of-offsite power coincident with a failure of both trains of emergency
onsite ac power, typically, the failure of multiple emergency diesel
generators). In meeting this regulatory objective, the NRC recognized
that there would be safety benefits accrued through the provision of an
alternate ac source diverse from the emergency diesel generators and
therefore defined such a source in Sec. 50.2. In furtherance of this
alternative means to comply with Sec. 50.63, the NRC also defined the
event a licensee must withstand and recover from as a station blackout
rather than a loss of all ac power. A station blackout allows for
continued availability of ac power to buses fed by station batteries
through inverters or by alternate ac sources. This proposed rule would
provide an additional capability to mitigate beyond-design-basis
external events. Because the condition assumed for the mitigation
strategies to establish the additional mitigation capability includes
an ELAP, which is more conservative than a station blackout as defined
in Sec. 50.2, there can be a direct relationship between the two
different sets of requirements with regard to the actual implementation
at the facility. Specifically, implementation of the proposed
mitigation strategies links into the station blackout procedures (e.g.,
the applicable strategies would be implemented to maintain or restore
the key safety functions when the EOPs reach a ``response not
obtained'' juncture).\6\
---------------------------------------------------------------------------
\6\ One of the formats for symptom-based EOPs that are used in
the operating power reactors has the operators take an action and
verify that the system responds to the action in a manner that
confirms that the action was effective. For example, a step in an
EOP could be to open a valve in order to allow cooling water flow
and the verification would be obtained by confirming there are
indications that flow has commenced such as lowering temperature of
the system being cooled. If those indications are not obtained, the
procedure would provide instructions on the next step to accomplish
in a separate column labeled ``response not obtained.''
---------------------------------------------------------------------------
Step-by-step procedures are not necessary for many aspects of the
proposed mitigating strategies and guidelines. Rather, the strategies
and guidelines should be flexible, and therefore enable plant personnel
to adapt them to the conditions that result from the beyond-design-
basis external event. The proposed provisions typically would result in
strategies and guidelines that use both installed and portable
equipment, instead of only relying on installed ac power sources (with
the exception of protected battery power) to maintain or restore core
cooling, containment, and spent fuel pool cooling capabilities. By
using equipment that is separate from the normal installed ac-powered
equipment, the strategies and guidelines have a diverse attribute. By
having available multiple sets of portable equipment that can be
deployed and used in multiple ways depending on the circumstances of
the event, operators are able to implement strategies and guidelines
that are flexible and adaptable.
The proposed mitigation strategies requirements are both
performance-based and functionally-based. The proposed performance-
based requirements recognize that the new requirements would provide
most benefit to future reactors whose designs could differ
significantly from current power reactor designs and as such, use of
more prescriptive requirements could be problematic and create
unnecessary regulatory impact and need for exemptions. Use of
functionally-based requirements results from the need to have
requirements that can address a wide range of damage states that might
exist following beyond-design-basis external events. Maintaining or
restoring three key functions (core cooling, containment' and spent
fuel pool cooling) supports maintenance of the fission product barriers
(i.e., fuel clad, reactor coolant pressure boundary, and containment)
and results in an effective means to mitigate these events, while
remaining flexible such that the strategies and guidelines can be
adapted to the damage state that occurs. Functionally-based
requirements also result in strategies that align well with the
symptom-based procedures used by power reactors to respond to
accidents. Accordingly, Order EA-12-049 contained requirements for a
three-phased approach for current operating reactors. This proposed
rule does not specify a number of phases; instead, the NRC is proposing
higher level, performance-based requirements consistent with this
discussion.
The NRC gave consideration to incorporating into this proposed rule
a requirement that licensees be capable of implementing the strategies
and guidelines ``whenever there is irradiated fuel in the reactor
vessel or spent fuel pool.'' This provision would have been a means of
making generically-applicable the requirement from Order EA-12-049 that
licensees be capable of implementing the strategies and guidelines ``in
all modes.'' The NRC considers the terminology ``whenever there is
irradiated fuel in the reactor vessel or spent fuel pool'' would be a
better means to address the Order requirement since the phrase does not
use technical specification type language (i.e., modes), which would
not be in effect when a licensee completely offloads the fuel from the
reactor vessel into the spent fuel pool during an outage. The NRC
concluded that the use of the phrases ``whenever there is irradiated
fuel in the reactor vessel or spent fuel pool'' or ``in all modes'' is
not necessary because the proposed applicability provisions would
ensure that licensees would be required to have mitigation strategies
for beyond-design-basis external events for the various configurations
that can exist for the reactor and spent fuel pools throughout the
operational, refueling and decommissioning phases.
The mitigation strategies and guidelines implemented under NRC
Order EA-12-049 assume a demanding condition that maximizes decay heat
that would need to be removed from the reactor core and spent fuel pool
source terms on site. This implementation results in a more restrictive
timeline (i.e., mitigation actions required earlier following the event
to take action to maintain or restore cooling to these source terms)
and a greater resulting additional capability. These assumed at-power
conditions are 100 days at 100 percent power prior to the event for the
reactor core as was used for Sec. 50.63. This assumption establishes a
conservative decay heat for the reactor source term. The assumed spent
fuel
[[Page 70624]]
pool conditions include the design basis heat load for the spent fuel
pool, typically a full core offload following a refueling outage. This
establishes a conservative heat load for the spent fuel pool. The NRC
recognizes that, as a practical reality, these conditions would not
exist simultaneously. The NRC considers the development of timelines
for the proposed mitigating strategies using the maximum heat load for
either the reactor core or the spent fuel pool to be appropriate. While
establishing the capability to mitigate the maximum heat load for both
simultaneously would be compliant with the proposed requirements, it
would not be necessary.
The NRC recognizes the difficulty of developing engineered
strategies for the extraordinarily large number of possible plant and
equipment configurations that might exist under shutdown conditions
(i.e., at shutdown when equipment may be removed from service, when
there is ongoing maintenance and repairs or refueling operations, or
modifications are being implemented). The proposed requirements mean
that licensees should be cognizant of such configurations, equipment
availability, and decay heat states that could present greater
challenges under these conditions, and design mitigation strategies
that can be implemented under such circumstances.
The NRC considered requiring the strategies to be developed
considering the need to plan for delays in the receipt of offsite
resources as a result of damage to the transportation infrastructure.
While severe events could damage local infrastructure, and could create
challenges with regard to the delivery of offsite resources, the NRC
concluded that having this level of specificity in the proposed
provisions would not be necessary. Instead, this proposed rule contains
provisions that are more performance-based, requiring continued
maintenance or restoration of the functional capabilities until
acquisition of offsite assistance and resources. Potential delays and
other challenges presented by extreme events that affect acquisition
and use of offsite resources would be addressed by licensee programs
that implement the proposed provisions.
Order EA-12-049 included a requirement that licensees develop
guidance and strategies to obtain ``sufficient offsite resources to
sustain [the functions of core cooling, containment, and spent fuel
pool cooling] indefinitely.'' The NRC considered using this language in
this proposed rule, but concluded that this would be better phrased as
``indefinitely, or until sufficient site functional capabilities can be
maintained without the need for the mitigation strategies.'' The NRC
concluded that this phrase better communicates the existence of a
transition from the use of the mitigating strategies to recovery
operations.
The NRC recognizes that the use of the proposed mitigating
strategies would potentially require departure from a license condition
or a technical specification (contained in a license issued under 10
CFR part 50 or 52) and could be considered a proceduralization of the
allowance provided under Sec. 50.54(x). Given that the initiation of
the use of these strategies may be included in emergency operating
procedures or other procedures, which might be considered procedures
described in the final safety analysis report (as updated), there is an
interaction with the provisions of Sec. 50.59(c)(1) regarding the need
to obtain a license amendment in order to make the necessary change to
those procedures. The NRC considered including provisions in this
proposed rule specifically to allow departures from license conditions
or technical specifications in order to clarify this situation, but
found these provisions unnecessary. For holders of operating licenses
under 10 CFR part 50 and combined licenses under 10 CFR part 52 that
were subject to Order EA-12-049, the provisions of that Order provided
more specific criteria for making the necessary changes than Sec.
50.59, making that section inapplicable as set forth in Sec.
50.59(c)(4). Those criteria included the provision of submitting an
overall integrated plan to the NRC for review. Similar criteria were
included in license conditions for the combined licenses for Virgil C.
Summer Nuclear Station, Units 2 and 3, and Enrico Fermi Nuclear Plant
Unit 3.
EDMGs
The NRC proposes to move the EDMGs requirement currently in Sec.
50.54(hh)(2) to a new mitigation of beyond-design-basis events section
of 10 CFR part 50. In addition to moving the text, the NRC proposes to
make a few editorial changes. The wording used to describe these
requirements has evolved from ``guidance and strategies,'' in Interim
Compensatory Measures Order EA-02-026, dated February 25, 2002, to
``strategies,'' in the corresponding license conditions, to ``guidance
and strategies,'' in Sec. 50.54(hh)(2), to its proposed form
``strategies and guidelines.'' The word ``guidelines'' was chosen
rather than ``guidance'' to better reflect the nature of the
instructions that could be developed as appropriate by a licensee and
to avoid confusion with the term ``regulatory guidance.'' The word
``strategies'' is used in this proposed rule to reflect its meaning,
``plans of action.'' The resulting plans of action could include plant
procedures, methods, or other guideline documents, as deemed
appropriate by the licensee during the development of these strategies.
These plans of action would also include the arrangements made with
offsite responders for support during an actual event. No substantive
change to the requirements is intended by this proposed change in the
wording.
Applicability of the requirements of Sec. 50.54(hh)(2) is
currently governed by Sec. 50.54(hh)(3), which makes these
requirements inapplicable following the submittal of the certifications
required under Sec. 50.82(a) or Sec. 52.110(a)(1). As discussed in
the statement of considerations for the Power Reactor Security
Rulemaking (74 FR 13926), the NRC believes that it would be
inappropriate for the requirements for EDMGs to apply to a permanently
shutdown, defueled reactor, where the fuel was removed from the site or
moved to an ISFSI. The NRC proposes to require EDMGs for a licensee
with permanently shutdown defueled reactors, but with irradiated fuel
still in its spent fuel pool, because the licensee must be able to
implement effective mitigation measures for large fires and explosions
that could impact the spent fuel pool while it contains irradiated
fuel. The difference between this proposed rule and Sec. 50.54(hh)(3)
would correct the wording of the latter provision to implement the
sunsetting of the associated requirement as was intended by the
Commission in 2009. This change would not constitute backfitting for
currently operating reactors because the proposed change concerns
decommissioning reactors. The proposed change would not constitute
backfitting for currently decommissioning reactors because the EDMGs
are also required by the licensees' license conditions that were made
generically applicable through the Power Reactor Security Rulemaking
and remain in effect.
Integration With EOPs
In developing a proposed requirement for the integration of FSGs
and EDMGs with the EOPs, the NRC considered their differences in
content and the standards for usage applied to them. The EOPs are a
specific and prescribed set of instructions implemented in accordance
with exacting standards for usage and adherence (e.g., step-by-step
sequential performance, concurrent execution of multiple sections) that
[[Page 70625]]
operators and plant staff are required to follow when performing a
specific task or addressing plant conditions. When implementing
procedures, each step is to be performed as prescribed, with rare
exceptions. The strategies and guidelines that would be required differ
from EOPs primarily in terms of the level of detail to which they are
written and expectations regarding usage. These strategies and
guidelines may be a less prescriptive set of instructions not subject
to the same constraints imposed by standards of usage for procedure
implementation (e.g., may not be followed in a step-by-step manner).
This is because of: (1) The large number of possible event initiators,
plant configurations, and sequences; and (2) the high degree of
uncertainties in event progression and consequences. The strategies and
guidelines can take the form of high level plans that identify and
describe potential, previously evaluated, success paths for addressing
specific conditions such as loss of core cooling. As a result,
strategies and guidelines provide operators and plant staff the
information and latitude to respond as necessary to unpredictable and
dynamic situations, allowing them to adapt to the actual conditions and
damage states without the burden of detailed procedures and the
challenge of determining which procedure may be applicable and
effective under the uncertain conditions of a beyond design basis
accident.
Given these differences in content and standards for usage, the
intent of this proposed rule is not to require conformance of the
strategies and guidelines to the level of detail and standards of usage
for EOPs, or consolidation of the strategies, guidelines and procedures
into a single set of instructions, but rather, as previously described,
to require functional integration of strategies and guidelines with the
EOPs. The objective is for the strategies, procedures, and guidelines
to retain or employ the characteristics that support their effective
use under the range of conditions to which they are each intended to
apply while ensuring that the strategies and guidelines, in conjunction
with the EOPs, constitute a useable and cohesive set of instructions
for mitigating the consequences of a wide range of initiating events
and plant damage states. To achieve this functional integration, the
NRC expects that applicants and licensees would have addressed the
interfaces, dependencies, and interactions among the strategies and
guidelines that would be required under this proposed rule and the
EOPs, such that they can be implemented in concert with each other, as
necessary, to effectively use available plant resources and direct a
logical and coordinated response to a wide range of accident
conditions.
In keeping with the basis for a functional integration of the
strategies and guidelines with EOPs, this proposed rule would require
that the FSGs and EDMGs be integrated ``with the Emergency Operating
Procedures (EOPs).'' This proposed language is intended to communicate
the NRC's expectation that the EOPs retain their role as the primary
means of directing emergency operations and that the strategies and
guidelines that would be required under this proposed rule would be
integrated with EOPs to support their implementation or augment them
where their implementation is not successful in preventing significant
fuel damage.
The NRC considered establishing specific criteria for the
integration of the strategies and guidelines with EOPs but opted to
specify only a high level requirement to allow applicants and licensees
flexibility in the means by which they achieve the functional
integration described previously. Approaches for achieving functional
integration could include the following:
1. Strategies, guidelines, and procedures have clearly defined
transitions (e.g., entry and exit conditions with distinct pointers)
from one strategy, guideline, or procedure to another.
2. Individuals are cued by the document or trained to know when
transitions between the strategies, guidelines, and procedures result
in corresponding changes in the associated standards for usage (e.g.,
when transitioning from EOPs to the voluntarily maintained SAMGs, the
operator is able to recognize the transition from a step-by-step
procedure to a flexible guideline set where it is permissible to
deviate from the order or method of accomplishing the steps).
3. Licensees establish expectations (e.g., through standards for
usage) pertaining to the parallel use of strategies, guidelines, and
procedures. Plant personnel using different strategies, guidelines, and
procedures concurrently understand which is the controlling procedure
and therefore which actions take precedence.
4. Licensees identify and resolve conflicts between the strategies,
guidelines and procedures.
5. Licensees identify competing considerations when using the
strategies, guidelines and procedures and eliminate or address them in
guidance.
6. Licensees control the development and maintenance of their
content and format in accordance with human factors standards and
guidelines (e.g., writer's guides) that recognize and address the
interfaces between them in order to achieve compatibility of the
strategies, guidelines, and procedures.
Staffing
The NRC proposes to require licensees to provide the staffing
necessary for having an integrated response capability to support
implementation of the FSGs and EDMGs. To be effective, staffing for an
expanded response capability should include the trained and qualified
individuals who would be relied upon to analyze, recommend, authorize,
and implement the mitigating strategies. The staffing must directly
support the assessment and implementation of a range of mitigation
strategies intended to maintain or restore the functions of core
cooling, containment, and spent fuel pool cooling.
The staffing analyses required by proposed appendix E, section VII,
should determine when personnel performing expanded response functions
should report to the site, within a timeframe sufficient to support
implementation of the strategies that are not assigned to the on-shift
staff. This would ensure that the functions of core cooling,
containment, and spent fuel pool cooling are continuously maintained or
are promptly restored.
The NRC has endorsed the industry guidance for conducting staffing
analyses, NEI 10-05, ``Assessment of On-Shift Emergency Response
Organization Staffing and Capabilities,'' Revision 0, and NEI 12-01,
``Guideline for Assessing Beyond Design Basis Accident Response
Staffing and Communications Capabilities,'' Revision 0, and the NRC has
issued Interim Staff Guidance (ISG), NSIR/DPR-ISG-01, ``Emergency
Planning for Nuclear Power Plants,'' that provides the requisite
details for determining the staffing levels and for which positions, as
well as which beyond design basis external events, the applicants and
licensees should evaluate.
The recommended minimum positions and staffing levels for emergency
plans were initially provided in NUREG-0654/FEMA-REP-1, Revision 1,
``Criteria for Preparation and Evaluation of Radiological Emergency
Response Plans and Preparedness in Support of Nuclear Power Plants.''
Following the September 11, 2001, events, the NRC issued Enhancements
[[Page 70626]]
to Emergency Preparedness Regulations (EP final rule) (76 FR 72560) to
amend 10 CFR part 50, appendix E, to address, in part, concerns about
the assignment of tasks or responsibilities to on-shift emergency
response organization (ERO) personnel that would potentially overburden
them and prevent the timely performance of their functions under the
emergency plan. Licensees must have enough on-shift staff to perform
specified tasks in various functional areas of emergency response 24
hours a day, 7 days a week. This proposed rule would address the
staffing requirements for the expanded response capabilities for on-
shift response and the ERO.
This proposed rule would require adequate staffing to implement the
FSGs and EDMGs with the EOPs without requiring further analysis to
supplement analyses that were completed as a result of post-Fukushima
orders or the EP final rule. Staffing levels should be established to
ensure that if strategies are executed there would be no delays in
completing them caused by the lack of qualified personnel. The NRC
expects that the use of drills, existing training analyses and other
methods would verify sufficient staffing levels.
Command and Control
The NRC proposes to require licensees to have a supporting
organizational structure with defined roles, responsibilities, and
authorities for directing and performing the FSGs and EDMGs. The
objective is to ensure that licensees address the organizational
implications of: (1) Implementing the FSGs; and (2) integrating the
FSGs and EDMGs with the EOPs such that organizational units responsible
for on-site accident mitigation (e.g., main control room, emergency
operations facility, and technical support center staff) can support a
coordinated implementation of these procedures and guidelines under the
challenging conditions presented by beyond-design-basis events.
Additional requirements currently exist in 10 CFR part 50, appendix
E, section IV.A, for the inclusion within the emergency plan of a
description of the organization for coping with radiological
emergencies, including definition of authorities, responsibilities, and
duties of individuals assigned to the licensee's emergency organization
and the means for notification of such individuals in the event of an
emergency. These requirements provide the command and control structure
for use in the execution of the emergency plan. The current 10 CFR part
50, appendix E, sections IV.A.2.a. and IV.A.5., further require that
the emergency plan include: (1) A detailed description of the
authorities, responsibilities, and duties of the individual(s) who will
take charge during an emergency; (2) plant staff emergency assignments,
authorities, responsibilities, and duties of an onsite emergency
coordinator who shall be in charge of the exchange of information with
offsite authorities responsible for coordinating and implementing
offsite emergency measures; and (3) the identification, by position and
function to be performed, of other employees of the licensee with
special qualifications for coping with emergency conditions that may
arise.
The need for defined command and control structures and
responsibilities for use in beyond-design-basis conditions was
recognized in the course of the development of the guidance and
strategies for the current Sec. 50.54(hh)(2). As stated in the
industry's guidance document for that set of requirements, NEI 06-12,
``B.5.b Phase 2 & 3 Submittal Guideline,'' Revision 2, ``Experience
with large scale incidents has shown that command and control execution
can be a key factor to mitigation success.'' The guidance and
strategies developed for that effort include an EDMG for initial
response to provide a bridge between normal operational command and
control and the command and control that is provided by the ERO in the
event that the normal command and control structure is disabled. The
NRC considers that the actions taken in the development of the EDMG for
initial response for the guidance and strategies for the current Sec.
50.54(hh)(2) would continue to be adequate for compliance with this
proposed rule for EDMGs following the proposed movement of those
requirements.
The endorsed industry guidance in NEI 12-06, Revision 0, ``Diverse
and Flexible Coping Strategies (FLEX) Implementation Guide,'' for the
guidance and strategies required by Order EA-12-049, specifies that the
existing command and control structure will be used for transition to
the voluntarily maintained SAMGs
All previous requirements did not specify a command and control
structure for a multi-unit event that includes the potential need for
acquisition of offsite assistance to support onsite event mitigation.
Additionally, these requirements were not understood to require such a
response since they preceded the Fukushima event and the regulatory
actions that stemmed from that event. As a practical matter, the
current command and control structures, including any changes that
resulted from the implementation of Order EA-12-049 requirements, are
expected to be sufficient to ensure that the functional objectives of
this proposed rule are achieved. Accordingly, the NRC recognizes that
this new requirement may not be necessary and is requesting stakeholder
feedback on this issue (refer to section VI of this notice).
Equipment
The NRC proposes to have requirements for licensee equipment,
including instrumentation, that is relied upon for use in proposed
mitigation strategies and guidelines. This rulemaking does not propose
to modify the regulatory treatment of equipment relied upon for the
EDMGs currently required by Sec. 50.54(hh)(2). The regulatory
treatment of that equipment will remain as it is described in the
endorsed guidance document for those strategies and guidelines.
This proposed rule would make generically applicable requirement
(2) of Order EA-12-049, attachments 2 and 3, which reads as follows:
``These strategies must . . . have adequate capacity to address
challenges to core cooling, containment, and SFP cooling capabilities
at all units on a site subject to this Order.''
The industry guidance of NEI 12-06, as endorsed by NRC interim
staff guidance JLD-ISG-2012-01, ``Compliance with Order EA-12-049,
Order Modifying Licenses with Regard to Requirements for Mitigation
Strategies for Beyond-Design-Basis External Events,'' included
specifications for licensee provision of a spare capability in order to
assure the reliability and availability of the equipment required to
provide the capacity and capability requirements of the Order. This
spare capability was also referred to within the guidance as an ``N+1''
capability, where ``N'' is the number of power reactor units on a site.
The NRC considered including requirements similar to the spare
capability specification of NEI 12-06 in this proposed rule but
determined that such an inclusion would be too prescriptive and could
result in the need to grant exemptions for alternate approaches that
provide an effective and efficient means to provide the required
capability of the Order. One example of this is in the area of flexible
hoses, for which a strict application of the sparing guidance could
necessitate provision of spare hose or cable lengths sufficient to
replace the longest run of hoses when significant operating experience
with similar hoses for fire protection does not show a failure rate
that would support this as a need.
[[Page 70627]]
The development of the mitigating strategies in response to Order
EA-12-049 relied upon a variety of initial and boundary conditions that
were provided in the regulatory guidance of JLD-ISG-2012-01, Revision
0, and NEI 12-06, Revision 0. These initial and boundary conditions
followed the philosophy of the basis for imposition of the requirements
of Order EA-12-049, which was to require additional defense-in-depth
measures to provide continued reasonable assurance of adequate
protection of public health and safety. As a result, the industry
response to Order EA-12-049 includes diverse and flexible means of
accomplishing safety functions rather than providing an additional
further hardened train of safety equipment. These requirements and
conditions included the acknowledgement that, due to the fact that
initiation of an event requiring use of the strategies would include
multiple failures of safety-related structures, systems, and components
(SSCs), it is inappropriate to postulate further failures that are not
consequential to the initiating event. As a result, the NRC has
determined that the conditions to which the instrumentation relied on
for the mitigating strategies would be exposed do not include
conditions stemming from fuel damage, but instead are limited as
described previously. The NRC has determined that it should not be
necessary for the instrumentation to be designed specifically for use
in the mitigating strategies and guidelines, but instead it would be
necessary that the design and associated functional performance be
sufficient to meet the demands of those strategies.
The underlying proposed requirements are for events that are not
included in the design basis events as that term is used in the Sec.
50.2 definition of safety-related SSCs. Because of this, reliance on
equipment for use in the related strategies would not result in the
applicability of 10 CFR part 50, appendix A, General Design Criterion
(GDC)-2, ``Design bases for protection against natural phenomena,'' or
the principal design criterion (PDC) applicable to a plant's operating
license if issued prior to GDC-2. This proposed rule would require
reasonable protection for the equipment relied on for the mitigation
strategies to a hazard level as severe as that originally determined
for the facility under GDC-2 or the applicable PDC unless the
reevaluated hazards stemming from the March 12, 2012, NRC letter issued
under Sec. 50.54(f), as assessed by the NRC show that increased
protection is necessary. The March 12, 2012, NRC letter requested
information on licensees' seismic and flooding hazards; licensees and
the NRC are currently scheduled to complete most of the work on the
flooding reevaluations prior to the anticipated effective date of this
proposed rule. The NRC notes that there are some licensees whose
licensing bases include requirements for protection from natural
phenomena beyond those established at the original licensing (e.g.,
North Anna Power Station for the seismic hazard), but anticipates that
these different hazard levels would be captured in the reevaluation of
external hazards under the March 12, 2012, NRC letter.
As discussed in COMSECY-14-0037, ``Integration of Mitigating
Strategies for Beyond-Design-Basis External Events and The Reevaluation
of Flooding Hazards,'' and its associated SRM, the requirements of
Order EA-12-049 were imposed in parallel with the agency's March 12,
2012, requests for information on the reevaluation of external hazards.
As a result, Order EA-12-049 included a requirement in both attachment
2 and 3 for licensees to provide reasonable protection for equipment
associated with the required mitigating strategies from external events
without specific reference to the necessary level of protection. The
appropriate level of protection from external hazards, particularly
flooding, was the subject of discussion in the course of NRC-held
public meetings leading up to the issuance of JLD-ISG-2012-01 and its
endorsement of the industry guidance for Order EA-12-049, NEI 12-06.
Section 6.2.3.1 of NEI 12-06 specifies that the level of protection for
flooding should be ``the flood elevation from the most recent site
flood analysis. The evaluation to determine the elevation for storage
should be informed by flood analysis applicable to the site from early
site permits, combined license applications, and/or contiguous licensed
sites.'' The choice of this hazard level was driven by the recognition
that, while the flooding hazard reevaluations by holders of operating
licenses and construction permits may not be complete in advance of the
development and implementation of the mitigating strategies,
information available from flood analyses for nearby sites could be
taken into account in choosing the appropriate level in order to avoid
the need for rework or modification of the strategies. Many licensees
took the former approach, using their best estimates of potential
hazard levels and providing additional margin to the current licensing
basis. (See, e.g., the description of the flooding strategies for Fort
Calhoun Station on page B-43 et seq., of Omaha Public Power District's
Overall Integrated Plan (Redacted) in Response to March 12, 2012, Order
EA-12-049.)
In COMSECY-14-0037, the NRC staff requested that the Commission
affirm that: (1) Licensees for operating nuclear power plants need to
address the reevaluated flooding hazards within their mitigating
strategies for beyond-design-basis external events; (2) licensees for
operating nuclear power plants may need to address some specific
flooding scenarios that could significantly damage the power plant site
by developing targeted or scenario-specific mitigating strategies,
possibly including unconventional measures, to prevent fuel damage in
reactor cores or spent fuel pools; and (3) the NRC staff should revise
the flooding assessments and integrate the decision-making into the
development and implementation of mitigating strategies in accordance
with Order EA-12-049 and this rulemaking. These principles reflect the
NEI 12-06 reference to the ``most recent flood analysis'' previously
discussed and the documentation by licensees in their overall
integrated plans for the mitigating strategies that, at the time of
their submittals, ``flood and seismic reevaluations pursuant to the
Sec. 50.54(f) letter of March 12, 2012, are not completed and
therefore not assumed in this submittal. As the reevaluations are
completed, appropriate issues would be entered into the corrective
action system and addressed on a schedule commensurate with other
licensing bases changes.'' In SRM-COMSECY-14-0037, the Commission
approved the first two items recommended by the NRC staff, regarding
the need for operating nuclear power plant licensees to address the
reevaluated flood hazards within the mitigating strategies and the
potential for using targeted or scenario specific mitigating
strategies. The Commission did not approve the third recommendation,
but that recommendation is outside the scope of this rulemaking effort.
The NRC drafted the proposed rule to reflect this direction and in
recognition of the fact that the wording of Order EA-12-049 and its
associated guidance did not make clear that the mitigating strategies
equipment would require protection to the reevaluated hazard levels
resulting from the Sec. 50.54(f) request for information of March 12,
2012.
Because the events for which the proposed mitigating strategies are
to be used are outside the scope of the design basis events considered
in establishing the basis for the design of the facility, equipment
that is relied upon for those
[[Page 70628]]
mitigating strategies may not fall within the scope of Sec. 50.65,
``Requirements for monitoring the effectiveness of maintenance at
nuclear power plants.'' Nevertheless, the NRC proposes that such
equipment should receive adequate maintenance in order to assure that
it is capable of fulfilling its intended function when called upon.
The NRC proposes to require licensees to have a means to remotely
monitor wide-range SFP level as a part of the equipment relied upon to
support the FSGs. This provision would make generically-applicable the
requirements imposed by Order EA-12-051. The NRC considered including
the detailed requirements from Order EA-12-051 within this proposed
rule, but determined that the more performance-based approach taken
with this proposed rule would better enable an applicant for a new
reactor license or design certification to provide innovative solutions
to address the need to effectively prioritize event mitigation and
recovery actions between the source term contained in the reactor
vessel and that contained within the spent fuel pool.
Training
The NRC anticipates that mitigation of the effects of beyond-
design-basis events using the proposed strategies and guidelines would
be principally accomplished through manual actions rather than
automated plant responses. Additionally, the instructions provided for
event mitigation may be largely provided as high level strategies and
guidelines rather than step-by-step procedures. The use of strategies
and guidelines supports the ability to adapt the mitigation measures to
the specific plant damage and operational conditions presented by the
event. However, effective use of this flexibility would depend upon the
knowledge and abilities of personnel to select appropriate strategies
or guidelines from a range of options and implement mitigation measures
using equipment or methods that may differ from those employed for
normal operation or design-basis event response. As a result, the NRC
considers personnel training and qualification necessary to ensure that
individuals would be capable of effectively performing their roles and
responsibilities in accordance with the strategies and guidelines that
would be required by this proposed rule.
The NRC acknowledges that licensee training programs, such as those
required for licensed operators under 10 CFR part 55, ``Operators'
Licenses,'' the programs for plant personnel specified under Sec.
50.120, ``Training and Qualification of Nuclear Power Plant
Personnel,'' and the training for emergency response personnel required
by 10 CFR part 50, appendix E, section IV.F, ``Training,'' would likely
provide for many of the knowledge and abilities required for performing
activities in accordance with the strategies and guidelines that would
be required by this proposed rule. Nevertheless, as noted previously,
the NRC anticipates that these strategies and guidelines may use new
methods or equipment that require knowledge and abilities not currently
addressed under existing training programs and, as a result, there may
be gaps in these training programs that must be addressed to support
effective use of the strategies and guidelines. Accordingly, this
proposed rule would further require that licensees provide for the
training of personnel using a systems approach to training as defined
in Sec. 55.4 (the Systems Approach to Training (SAT) process), except
for elements already covered under other NRC regulations.\7\ The SAT
process, which is acceptable for meeting training requirements under 10
CFR part 55 and Sec. 50.120, would also be appropriate for licensee
identification and resolution of any current gaps or future
modifications to personnel training that may be necessary to provide
for the training of personnel performing activities in accordance with
the mitigating strategies and guidelines that would be required by this
proposed rule. The NRC recognizes that there are other training
programs that are currently acceptable for meeting other regulatory
required training (e.g., 10 CFR part 50, appendix E, section IV.F) that
do not use the SAT process. In light of the existence of these training
programs, which have been found acceptable for more frequently
occurring design-basis events, the NRC has determined that these
training programs can meet the needs for common elements with beyond-
design-basis event mitigation. Therefore, the NRC would not require
licensees to revise these training programs to use the SAT process to
meet the proposed requirements. Licensees would be required to use the
SAT process for newly identified training requirements supporting the
effective use of the strategies and guidelines that would be required
by this proposed rule.
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\7\ This definition of a systems approach to training (SAT), is
a training program that includes the following five elements: (1)
Systematic analysis of the jobs to be performed; (2) learning
objectives derived from the analysis which describe desired
performance after training; (3) training design and implementation
based on the learning objectives; (4) evaluation of trainee mastery
of the objectives during training; and (5) evaluation and revision
of the training based on the performance of trained personnel in the
job setting.
---------------------------------------------------------------------------
By using the SAT process, licensees would identify and train on any
additional tasks that would be necessary to implement the strategies
and guidelines for the mitigation of beyond-design-basis events as
defined in this proposed rule. The additional tasks identified would be
incorporated into the training program to ensure appropriate training
would be administered for each qualified individual designated to
implement the strategies and guidelines required by this proposed rule.
Change Control
The proposed requirements address beyond-design-basis events, and
as such, currently existing change control processes do not address all
aspects of a contemplated change, including most notably Sec. 50.59.
As such, the proposed change control provision is intended to
supplement the existing change control processes and focus on the
beyond-design-basis aspects of the proposed change.
This proposed rule would not contain criteria typically included in
other change control processes that are used as a threshold for
determining when a licensee needs to seek NRC review and approval prior
to implementing the proposed change. Instead, the proposed provisions
would require that the evaluations of the proposed change reach a
conclusion that all new requirements continue to be met and that this
evaluation is documented and maintained to support NRC inspection.
Proposed changes that remain consistent with regulatory guidance
would be acceptable, since such changes would ensure continued
compliance with the proposed provisions in this rulemaking. The NRC
recognizes that the proposed change control provisions may result in
licensees seeking NRC review and approval of proposed changes that do
not follow current regulatory guidance for this proposed rulemaking
potentially through a license amendment or through NRC review of new or
revised regulatory guidance. Accordingly, the NRC is requesting
stakeholder feedback on this issue to determine whether there is a
better regulatory approach for change control (refer to the ``Specific
Requests for Comments'' section of this document).
During public discussions before issuance of this proposed rule,
there was a suggestion that the NRC should consider a provision to
allow a licensee to request NRC review of a proposed change, and that
if the NRC did not act
[[Page 70629]]
upon the request for a suggested time period (e.g., 180 days) that the
request be considered ``acceptable.'' The NRC did not include this
``negative consent'' type of approval process in this proposed rule and
instead the proposed change control process places the responsibility
on the licensees to ensure that proposed changes result in continued
compliance with the proposed rule provisions, or are otherwise
submitted to the NRC following the Sec. 50.12 exemption process. The
NRC expects to obtain stakeholder feedback on this issue and will
consider that feedback when developing the final rule provisions.
A licensee may intend to change its facility, procedures, or
guideline sets to revise some aspect of beyond-design-basis mitigation
(i.e., governed by the proposed provisions of this rulemaking), and the
same change can impact multiple aspects of the facility (i.e., impact
``design basis'' aspects of the facility and be subject to other
regulations and change control processes). As previously discussed, the
NRC anticipates that a licensee would ensure that a proposed change is
consistent with endorsed guidance to ensure continued compliance with
the proposed provisions. This same change could also impact safety-
related structures, systems, and components, either directly (e.g., a
proposed change that impacts a physical connection of mitigation
strategies equipment to a safety-related component or system) or
indirectly (e.g., a proposed change that involves the physical location
of mitigation equipment in the vicinity of safety-related equipment
that presents a potential for adverse physical/spatial interactions
with safety-related components). As such, Sec. 50.59 would need to be
applied to evaluate the proposed change for any potential impacts to
safety-related SSCs.
Additionally, proposed changes can impact numerous aspects of the
facility beyond the safety-related impacts, including implementation of
fire protection requirements, security requirements, emergency
preparedness requirements, or safety/security interface requirements.
Accordingly, it would be necessary for a licensee to ensure that all
applicable change control provisions are used to judge the
acceptability of facility changes including, for example, change
control requirements for fire protection, security, and emergency
preparedness. Additionally, recognizing the nature of mitigation
strategies and the reliance on human actions, it is also necessary to
ensure that the proposed changes satisfy the safety/security interface
requirements of Sec. 73.58. It is the obligation of the licensee to
comply with all applicable requirements, and as such, the proposed
change control provisions could be viewed as unnecessary. However
recognizing the potential complexity of proposed facility changes and
the complexity of existing regulatory requirements that govern change
control, the NRC concluded that adding the proposed change control
provision, for the purposes of regulatory clarity, was warranted.
Implementation
The NRC proposes a compliance schedule of 2 years following the
effective date of the rule. This proposed rule does not include any
special provision for a holder of a COL as of the effective date of the
rule for which the Commission has not made the finding required under
Sec. 52.103(g) (i.e., a COL holder still in the construction phase).
The NRC considers the duration of 2 years prior to compliance with the
requirements of this proposed rule to be acceptable because the
majority of these requirements have been previously implemented under
Orders EA-12-049 and Order EA-12-051 or Sec. 50.54(hh)(2), or are in
response to the Sec. 50.54(f) requests for information issued March
12, 2012.
Regulatory Basis for New Emergency Response Capability Requirements
A significant objective of this rulemaking is to make the
requirements that were previously imposed under Order EA-12-049
generically applicable. As an implicit part of the implementation of
Order EA-12-049, additional emergency response capabilities were
included to address a beyond-design-basis external event that impacts
multiple power reactor units, and potentially multiple source terms, on
the site. In all cases, these additional proposed revisions are
considered to be necessary to effectively mitigate such an event,
consistent with the NRC's intent in issuing Order EA-12-049. These
proposed requirements were not explicitly addressed in the previous
regulatory basis documents issued for the two rulemakings that were
consolidated into this rulemaking. This section discusses the basis for
these proposed emergency response capability provisions.
The March 12, 2012, Sec. 50.54(f) letters (i.e., Request for
Information Pursuant to title 10 of the Code of Federal Regulations
50.54(f)) requested information from the licensees that, in part, was
intended to verify the adequacy of emergency planning to address what
was then termed prolonged SBO \8\ and multi-unit events. The accident
at Fukushima highlighted the need to determine and implement the
required staff to fill all necessary positions responding to multi-unit
events. Additionally, NRC recognizes that the communication equipment
relied upon to coordinate the event response during an ELAP should be
powered and maintained.
---------------------------------------------------------------------------
\8\ While the letter made use of the term ``prolonged SBO,'' the
request for information was for a loss of all alternating current
power, which was subsequently termed an ELAP. The phrase ``prolonged
SBO'' is retained here to accurately reflect the wording used in the
letter.
---------------------------------------------------------------------------
1. Onsite and Offsite Communications Capability
This proposed rule would require additional communications
capabilities for events that result in extended loss of ac power
onsite, or potential destruction of offsite communications
infrastructure. Because of the destruction to communications capability
that occurred at Fukushima, the NRC would propose requirements for
licensees to provide a greater capability to communicate with onsite
staff to support mitigation of the event, and to support offsite
communications to gain any additional support or to perform emergency
preparedness functions. The proposed requirements would support
effective implementation of the FSGs and were included as part of the
implementation of Order EA-12-049.
2. Staffing Assessment
This proposed rule would require an assessment that is considered
essential for effective implementation of the FSGs. This assessment
matches the one that was conducted under the March 12, 2012, request
for information that was developed to align with the requirements
included in Order EA-12-049 (i.e., the staffing analysis specifically
considered the staffing needs for implementing Order EA-12-049);
licensees would not be required to repeat the staffing analysis. A
lesson-learned from the Fukushima event is that there are increased
staffing demands following a beyond-design-basis external event, and
this coupled with the subsequent NRC requirements issued in Order EA-
12-049 required the staffing analysis to provide a level of assurance
that the FSGs can be implemented. This provision would then support the
proposed requirements of the rule to have sufficient staffing to
implement the FSGs and EDMGs in conjunction with the EOPs.
[[Page 70630]]
3. Change Control
The NRC would not require a power reactor applicant or licensee to
address or implement the proposed communications and staffing analysis
requirements through the licensee's or applicant's emergency plan or
maintain the capabilities as a part of the emergency preparedness
program. This approach would allow for site-specific flexibility in
implementation. Therefore, the requirements of maintaining the
communications and staffing analysis in an effective emergency plan and
controlling changes to it under Sec. 50.54(q) would not apply when
implementation of the requirements is not in the emergency plan, but in
all cases, the change control process of this proposed rule would
apply. However, if an applicant or a licensee incorporates the
communications and staffing analysis into the emergency preparedness
program through the emergency plan or emergency plan implementing
procedures, the requirements of Sec. 50.54(q) would apply.
4. Multiple Source Dose Assessment Capability
This proposed rule would require licensees to have a means for
determining the magnitude of, and for continually assessing the impact
of, the release of radioactive materials, including from all reactor
core and spent fuel pool sources. A lesson learned from the Fukushima
Dai-ichi event is that there is a potential for a beyond-design-basis
external event to result in multiple source terms from multiple release
points, and under such a situation, additional capabilities are
necessary to support development of appropriate protective action
recommendations. In COMSECY-13-0010, ``Schedule and Plans for Tier 2
Order on Emergency Preparedness for Japan Lessons Learned,'' dated
March 27, 2013, the NRC staff informed the Commission that licensees
would provide information about their current multiple source term dose
assessment capability, or a schedule for implementing such a
capability, and that associated implementation would occur by the end
of calendar year 2014. Licensee implementation of the multiple source
term dose assessment capability would be verified by inspection under
TI-2515/191, ``Inspection of the Licensee's Responses to Mitigation
Strategies Order EA-12-049, Spent Fuel Pool Instrumentation Order EA-
12-051 and Emergency Preparedness Information Requested in NRC March
12, 2012.'' The NRC has been working with the industry and stakeholders
through public meetings to review and provide feedback on NEI 13-06,
``Enhancements to Emergency Response Capabilities for Beyond Design
Basis Accidents and Events,'' Revision 0, which, in part, would provide
licensees with guidance on implementing a multiple source term dose
assessment capability.
The capability should be available to support responses during
events both within and beyond the plant design basis. Also, the
licensee should discuss the site's multi-unit and multiple source term
dose assessment capability with the offsite response organizations,
particularly, with the agencies that are responsible for making
decisions on public protective action recommendations. Agreement on the
methods and results would avoid unnecessary delays during the event in
making the public protective action decisions, public notification, and
the implementation of protective actions.
5. Technology-Neutral Emergency Response Data System
The proposed requirements of 10 CFR part 50, appendix E, section
VI, for the Emergency Response Data System (ERDS) would reflect the use
of up-to-date technologies and remain technology-neutral so that the
equipment supplied by NRC would continue to be replaced as needed,
without the need for future rulemaking because equipment becomes
obsolete. In 2005, the NRC initiated a comprehensive, multi-year effort
to modernize all aspects of the ERDS, including the hardware and
software that constitute the ERDS infrastructure at NRC headquarters,
as well as the technology used to transmit data from licensed power
reactor facilities. As described in NRC Regulatory Issue Summary 2009-
13, ``Emergency Response Data System Upgrade From Modem to Virtual
Private Network Appliance,'' the NRC engaged licensees in a program
that replaced the existing modems used to transmit ERDS data with
Virtual Private Network (VPN) devices. The licensees now have less
burdensome testing requirements, faster data transmission rates, and
increased system security.
V. Section-by-Section Analysis
Proposed Sec. 50.8 Information Collection Requirements: OMB Approval
This section, which lists all information collections in 10 CFR
part 50 that have been approved by the Office of Management and Budget
(OMB), is revised by adding a reference to Sec. 50.155, the mitigation
of beyond-design-basis events rule. As discussed in the ``Paperwork
Reduction Act Statement'' section of this document, the OMB has
approved the information collection and reporting requirements in the
final mitigation of beyond-design-basis events rule. No specific
requirement or prohibition is imposed on applicants or licensees in
this section.
Proposed Sec. 50.34 Contents of Applications; Technical Information
Section 50.34 identifies the technical information that must be
provided in applications for construction permits and operating
licenses. Paragraphs (a) and (b) of this section identify the
information to be submitted as part of the preliminary or final safety
analysis report, respectively. New paragraph (i) of this section would
identify information to be submitted as part of an operating license
application, but not necessarily included in the final safety analysis
report.
The NRC is proposing an administrative change to Sec. 50.34(a)(13)
and (b)(12) to remove the word ``stationary'' from the requirement for
power reactor applicants who apply for a construction permit or
operating license, respectively. Section 50.34(a)(13) and 50.34(b)(12)
were added to the regulations in 2009 to reflect the requirements of
Sec. 50.150(b) regarding the inclusion of information within the
preliminary or final safety analysis reports for applicants subject to
Sec. 50.150. Section 50.34(a)(13) and (b)(12) were inadvertently
limited to ``stationary power reactors,'' matching the wording of Sec.
50.34(a)(1), (a)(12), (b)(10), and (b)(11), which pertain to seismic
risk hazards for stationary power reactors. The NRC does not intend to
change the meaning of this requirement by removing the word
``stationary'' from these requirements. This change is intended to
ensure consistency in describing the types of applications to which the
requirements apply.
Proposed Sec. 50.34(i) would require each application for an
operating license to include the applicant's plans for implementing the
requirements of proposed Sec. 50.155 and 10 CFR part 50, appendix E,
section VII, including a schedule for achieving full compliance with
these requirements. This paragraph would also require the application
to include a description of: (1) The integrated response capability
that would be required by proposed Sec. 50.155(b); (2) the equipment
upon which the strategies and guidelines that would be required by
proposed Sec. 50.155(b)(1) rely, including the
[[Page 70631]]
planned locations of the equipment and how the equipment and SSCs would
meet the design requirements of proposed Sec. 50.155(c); and (3) the
strategies and guidelines that would be required by proposed Sec.
50.155(b)(2).
Proposed Sec. 50.54 Conditions of Licenses
Applicability of the requirements of Sec. 50.54(hh) is currently
governed by Sec. 50.54(hh)(3), which makes these requirements
inapplicable to a nuclear power plant for which the certifications
required under Sec. 50.82(a) or Sec. 52.110(a)(1) have been
submitted. This rulemaking proposes to renumber Sec. 50.54(hh)(3) to
reflect the proposed movement of the requirements currently within
Sec. 50.54(hh)(2) to proposed Sec. 50.155(b)(2). The proposed Sec.
50.54(hh)(2) includes editorial changes to reflect that the
applicability is to the licensee rather than the facility and to
correct the section numbers for the required certifications.
Additionally, proposed Sec. 50.54(hh)(2) clarifies that the
inapplicability is dependent upon the NRC docketing of the
certifications rather than licensee submittal because Sec. 50.82(a)(2)
and Sec. 52.110(b) set the docketing of the certifications as the
point at which operation of the reactor is no longer authorized and
fuel cannot be placed in the reactor vessel.
Proposed Sec. 50.155(a), ``Applicability''
Proposed Sec. 50.155(a) would describe which entities would be
subject to this proposed rule. Proposed Sec. 50.155(a)(1) would
provide that each holder of an operating license for a nuclear power
reactor under part 50 and each holder of a combined license under part
52 after the Commission has made the finding under Sec. 52.103(g) that
the acceptance criteria have been met, would be required to comply with
the requirements of this proposed rule until the time when the NRC has
docketed the certifications described in Sec. 50.82(a)(1) or Sec.
52.110(a). These certifications inform the NRC that the licensee has
permanently ceased to operate the reactor and permanently removed all
fuel from the reactor vessel. Upon the docketing of the certifications,
by operation of law under Sec. 50.82(a)(2) or Sec. 52.110(b), the
licensee's part 50 or 52 license, respectively, no longer authorizes
operation of the reactor or emplacement or retention of fuel in the
reactor vessel. At this point, many portions of this proposed rule
would not apply to the licensee because the removal of fuel from the
reactor vessel would eliminate the risk of a reactor-based beyond-
design-basis event and the need to prepare to mitigate those events.
Proposed Sec. 50.155(a)(3) would set forth the requirements that would
apply to the licensee with Sec. 50.82(a)(2) or Sec. 52.110(b)
certification.
Proposed Sec. 50.155(a)(2) would provide that each applicant for
an operating license for a nuclear power reactor under part 50 and each
holder of a combined license before the Commission makes the finding
under Sec. 52.103(g) would be required to comply with the requirements
of this proposed rule no later than the date on which the Commission
issues the operating license under Sec. 50.57 or makes the finding
under Sec. 52.103(g), respectively. Under this regulation, operating
license applicants and COL holders would be in compliance with this
proposed rule before they begin operating their reactors, thereby
providing additional defense-in-depth capabilities at the inception of
power operations.
Proposed Sec. 50.155(a)(3) would address power reactor licensees
that permanently stop operating and defuel their reactors and begin
decommissioning the reactors. The proposed paragraph would provide that
when an entity subject to the requirements of proposed Sec. 50.155
submits to the NRC the certifications described in Sec. 50.82(a)(1) or
Sec. 52.110(a), and the NRC dockets those certifications, then that
licensee would be required to comply with the requirements of proposed
Sec. 50.155(b) through (e) associated with maintaining or restoring
secondary containment, if applicable, and spent fuel pool cooling
capabilities for the reactor described in the Sec. 50.82(a)(1) or
Sec. 52.110(a) certifications, except for the requirements in proposed
Sec. 50.155(c)(4) and proposed in 10 CFR part 50, appendix E, section
VII. In other words, the licensee could discontinue compliance with the
requirements in proposed Sec. 50.155 associated with maintaining or
restoring core cooling or the primary reactor containment functional
capability for the reactor described in the Sec. 50.82(a)(1) or Sec.
52.110(a) certifications. Compliance with the requirements of proposed
Sec. 50.155(b) through (e) associated with maintaining or restoring
secondary containment, if applicable, and spent fuel pool cooling
capabilities would continue as long as spent fuel remains in the spent
fuel pool(s) associated with the reactor described in the Sec.
50.82(a)(1) or Sec. 52.110(a) certifications.
Proposed Sec. 50.155(a)(3)(i) would discontinue the requirement to
comply with proposed Sec. 50.155(b)(1) requirements concerning beyond-
design-basis event strategies and guidelines for spent fuel pool
cooling capabilities, and any requirements based on compliance with
proposed Sec. 50.155(b)(1), for certain licensees in decommissioning.
These licensees would have to perform and retain an analysis
demonstrating that sufficient time has passed since the fuel within the
spent fuel pool was last irradiated such that the fuel's low decay heat
and boil-off period provide sufficient time in an emergency for the
licensee to obtain off-site resources to sustain the spent fuel pool
cooling function indefinitely and therefore obviate the need to comply
with proposed Sec. 50.155(b)(1) using installed or on-site portable
equipment.
Proposed Sec. 50.155(a)(3)(i) also would discontinue the
requirement to comply with the remaining provisions of proposed Sec.
50.155 except proposed Sec. 50.155(b)(2) when the fuel in the spent
fuel pool reaches the point where beyond-design-basis event strategies
and guidelines for spent fuel cooling capabilities would no longer be
needed.
Proposed Sec. 50.155(a)(3)(ii) would exempt the licensee for
Millstone Power Station Unit 1, Dominion Nuclear Connecticut, Inc. from
the requirements of proposed Sec. 50.155.
Under proposed Sec. 50.155(a)(3), once a power reactor licensee
has permanently stopped operating and defueled its reactor and has
removed all irradiated fuel from the spent fuel pool(s) associated with
the reactor described in the Sec. 50.82(a)(1) or Sec. 52.110(a)
certifications, the licensee could cease compliance with all
requirements in proposed Sec. 50.155 for the unit(s) described in the
Sec. 50.82(a)(1) or Sec. 52.110(a) certifications.
Proposed Sec. 50.155(b), ``Integrated Response Capability''
Proposed paragraph (b) would require that each applicant or
licensee develop, implement, and maintain an integrated response
capability that includes: (1) Mitigation strategies for beyond-design-
basis external events, (2) extensive damage mitigation guidelines, (3)
integration of these strategies and guidelines with emergency operating
procedures, (4) sufficient staffing to support implementation of the
guidelines in conjunction with the EOPs, and (5) a supporting
organizational structure with defined roles, responsibilities, and
authorities for directing and performing these strategies, guidelines,
and procedures. The intent is to require that the operating and
combined license holders described in Sec. 50.155(a) be able to
mitigate the consequences of a wide range of initiating events and
plant
[[Page 70632]]
damage states that can challenge public health and safety.
The specification of strategies, guidelines and procedures for the
response capability not only defines the required scope of the
capability but sets forth the expectation that the response capability
must include planned methods for responding that are documented in some
form of written instruction. To serve their function, these strategies,
guidelines and procedures must be acted upon by individuals capable of
understanding their appropriate application and implementing them.
Accordingly, proposed Sec. 50.155(b)(4), in conjunction with proposed
Sec. 50.155(d), would require that the response capability include an
adequate number of personnel with the knowledge and skills to implement
the strategies, guidelines and procedures and that the mitigation
activities of these individuals be coordinated in accordance with a
defined command and control structure as would be required by proposed
Sec. 50.155(b)(5).
Proposed Sec. 50.155(b) would specify that the integrated response
capability be ``developed, implemented, and maintained.'' This language
reflects NRC consideration that whereas certain elements of the
integrated response capability have been developed and are currently in
place (e.g., the EDMGs), other elements (e.g., guidelines to mitigate
beyond-design-basis external events) may require additional efforts to
complete and integrate. The term ``implement'' is used in proposed
Sec. 50.155(b) to mean that the integrated response capability is
established and available to respond, if needed (e.g., the licensee has
approved the strategies, guidelines, and procedures for use). The term
``maintain'' as used in proposed Sec. 50.155(b) reflects the NRC's
intent that licensees ensure that the integrated response capability,
once established, be preserved consistent with the change control
provisions of proposed Sec. 50.155(g).
Proposed Sec. 50.155(b)(1) would establish requirements for
applicants and licensees to develop, implement and maintain strategies
and guidelines to mitigate beyond-design-basis external events from
natural phenomenon that result in an extended loss of ac power
concurrent with either a loss of normal access to the ultimate heat
sink or, for passive reactor designs, a loss of normal access to the
normal heat sink. These provisions would require that the strategies
and guidelines be capable of being implemented site-wide and include:
i. Maintaining or restoring core cooling, containment, and spent
fuel pool cooling capabilities; and
ii. Enabling the use and receipt of offsite assistance and
resources to support the continued maintenance of the functional
capabilities for core cooling, containment, and spent fuel pool cooling
indefinitely, or until sufficient site functional capabilities can be
maintained without the need for the mitigation strategies.
New reactors may establish different approaches from operating
reactors in developing strategies to mitigate beyond-design-basis
events. For example, new reactors may use installed plant equipment for
both the initial and long-term response to an ELAP with less reliance
on portable equipment and offsite resources than currently operating
nuclear power plants. The NRC would consider the specific plant
approach when evaluating the SSCs relied on as part of the mitigating
strategies for beyond-design-basis events. Additional information on
these strategies is provided in DG-1301, which would endorse an updated
version of the industry guidance, for use by applicants and licensees,
that incorporates lessons learned and feedback stemming from the
implementation of Order EA-12-049, consistent with Commission
direction.
The proposed Sec. 50.155(b)(1) would limit the requirements for
mitigation strategies to addressing ``external events from natural
phenomena.'' This proposed language is meant to differentiate these
requirements from those that currently exist within Sec. 50.54(hh)(2),
which address beyond-design-basis external events leading to loss of
large areas of the plant due to explosions and fire. This proposed
provision also results in the need to have mitigation equipment be
reasonably protected from the effects of external natural phenomena as
discussed in later portions of this proposed notice.
The proposed requirements to enable ``the acquisition and use of
offsite assistance and resources to support the functions required by
(b)(1)(i) of this section indefinitely, or until sufficient site
functional capabilities can be maintained without the need for the
mitigation strategies'' means that licensees would need to plan for
obtaining sufficient resources (e.g., fuel for generators and pumps,
cooling and makeup water) to continue removing decay heat from the
irradiated fuel in the reactor vessel and spent fuel pool as well as to
remove heat from containment as necessary until an alternate means of
removing heat is established. The alternate means of removing heat
could be achieved through repairs to existing SSCs, commissioning of
new SSCs, or reduction of decay heat levels through the passage of time
sufficient to allow heat removal through losses to the ambient
environment. More detailed planning for offsite assistance and
resources would be necessary for the initial period following the
event; less detailed planning would be necessary as the event
progresses and the licensee can mobilize additional support for
recovery.
Proposed Sec. 50.155(b)(2) would move requirements for EDMGs that
currently exist in Sec. 50.54(hh)(2) to proposed Sec. 50.155(b)(2).
This move would consolidate the requirements for beyond-design-basis
strategies and guidance into a single section to promote efficiency in
their consideration and allow for better integration. Although the
wording of proposed Sec. 50.155(b)(2) differs from that of Sec.
50.54(hh)(2), no substantive change in the requirements is intended.
The preamble to Sec. 50.155(b)(2) that is contained in Sec.
50.155(b) is worded so that it would require that licensees ``develop,
implement, and maintain'' the strategies and guidance required in Sec.
50.155(b)(2) rather than using the wording of Sec. 50.54(hh)(2) to
require that licensees ``develop and implement'' the described guidance
and strategies. The addition of the word ``maintain'' was proposed in
order to correct an inconsistency with the wording of Sec.
50.54(hh)(1), which was promulgated along with Sec. 50.54(hh)(2) in
the Power Reactor Security Rulemaking, issued on March 27, 2009 (74 FR
13926), and to clarify that the NRC considers the plain language
meaning of the transitive verb ``to implement,'' ``to put into
effect,'' as it was used in the context of Sec. 50.54(hh)(2) as
including maintenance of the resulting guidance and strategies. The
requirement as it was originally issued in the Interim Compensatory
Measures Order, EA-02-026, dated February 25, 2002, was worded to
require licensees to ``develop'' specific guidance, while the
corresponding license conditions imposed by the conforming license
amendment was worded to require each affected licensee to ``develop and
maintain'' strategies. The NRC believes that the phrase ``develop,
implement, and maintain'' would provide better clarity of what is
necessary for compliance with the requirements without substantively
changing the requirements.
Proposed Sec. 50.155(b)(3) would establish requirements for
licensees to integrate the strategies and guidelines in
[[Page 70633]]
(b)(1) and (2) with EOPs. The Commission's intent regarding integration
of strategies, guidelines, and procedures was introduced in the
section-by-section analysis of the proposed Sec. 50.155(b) requirement
for an integrated response capability and is described further under
``Integration with EOPs'' of Section IV.D, Proposed Rule Regulatory
Bases.
Proposed Sec. 50.155(b)(4) would establish requirements for
licensees to provide the staffing necessary for having an integrated
response capability to support implementation of the strategies and
guidelines in proposed (b)(1) and (2). The number and composition of
the response staff should be sufficient to implement mitigation
strategies intended to maintain or restore the functions of core
cooling, containment, and spent fuel pool cooling for all affected
units. The word ``sufficient'' is used in the proposed paragraph to
reflect its meaning ``adequate.''
Proposed Sec. 50.155(b)(5) would establish requirements for
licensees to have a supporting organizational structure with defined
roles, responsibilities, and authorities for directing and performing
the guidelines in (b)(1) and (2).
Proposed Sec. 50.155(c) Equipment Requirements
Proposed Sec. 50.155(c)(1) would require that equipment relied on
for the mitigation strategies of proposed paragraph (b)(1) have
sufficient capacity and capability to simultaneously maintain or
restore core cooling, containment, and spent fuel pool capabilities for
all the power reactor units and spent fuel pools within the licensee's
site boundary.
The phrase sufficient ``capacity and capability'' in proposed Sec.
50.155(c)(1) means that the equipment, and the instrumentation relied
on to support the decision making necessary to accomplish the
associated mitigating strategies of Sec. 50.155(b)(1), should have the
design specifications necessary to assure that it would function and
provide the requisite plant information when subjected to the
conditions it is expected to be exposed to in the course of the
execution of those mitigating strategies. These design specifications
would include appropriate consideration of environmental conditions
that are predicted in the thermal-hydraulic and room heat up analyses
used in the development of the mitigating strategies responsive to
Sec. 50.155(b)(1).
Proposed Sec. 50.155(c)(2) would require reasonable protection of
the Sec. 50.155(b)(1) equipment rather than the treatment of SSCs
important to safety under GDC-2, which requires that those SSCs be
designed to withstand the effects of natural phenomena without loss of
capability to perform their safety functions. The phrase ``reasonable
protection'' was initially proposed in recommendation 4.2 of the NTTF
Report in the context of a proposed NRC Order to licensees to require
``reasonable protection'' of equipment required by Sec. 50.54(hh)(2)
from the effects of design-basis external events along with providing
additional sets of equipment as an interim measure during a subsequent
rulemaking on prolonged SBO. The NTTF based this recommendation on the
potential usefulness of the EDMGs in circumstances that do not involve
loss of a large area of the plant and explained that reasonable
protection from external events as used in the NTTF Report meant that
the equipment must ``be stored in existing locations that are
reasonably protected from significant floods and involve robust
structures with enhanced protection from seismic and wind-related
events.''
The NRC carried forward the use of the phrase ``reasonable
protection'' in Order EA-12-049 with regard to the protection required
for equipment associated with the mitigation strategies. That Order did
not, however, define ``reasonable protection.'' The NRC guidance in
JLD-ISG-2012-01 discussed ``reasonable protection'' as follows:
Storage locations chosen for the equipment must provide
protection from external events as necessary to allow the equipment
to perform its function without loss of capability. In addition, the
licensee must provide a means to bring the equipment to the
connection point under those conditions in time to initiate the
strategy prior to expiration of the estimated capability to maintain
core and spent fuel pool cooling and containment functions in the
initial response phase.
In JLD-ISG-2012-01, the NRC endorsed NEI 12-06, Revision 0, as
providing an acceptable method to provide reasonable protection,
storage, and deployment of the equipment associated with Order EA-12-
049. The NEI 12-06, Revision 0, also omitted a definition for the
phrase ``reasonable protection,'' but did provide guidelines for use by
licensees for protecting the equipment from the hazards that would be
commonly applicable: (1) Seismic hazards; (2) flooding hazards; (3)
severe storms with high winds; (4) snow, ice and extreme cold; and(5)
high temperatures. These guidelines included the use of structures
designed to or evaluated equivalent to American Society for Civil
Engineers (ASCE) Standard 7-10, ``Minimum Design Loads for Buildings
and Other Structures,'' for the seismic and high winds hazards, rather
than requiring the use of a structure that meets the plant's design
basis for the Safe Shutdown Earthquake or high winds hazards including
missiles. The NEI 12-06 guidelines also allow storage of the equipment
above the flood elevation from the most recent site flood analysis,
storage within a structure designed to protect the equipment from the
flood, or storage below the flood level if sufficient time would be
available and plant procedures would address the need to relocate the
equipment above the flood level based on the timing of the limiting
flood scenario(s). The NEI 12-06 guidelines further provide that
multiple sets of equipment may be stored in diverse locations in order
to provide assurance that sufficient equipment would remain deployable
to assure the success of the strategies following an initiating event.
The NRC-endorsed guidelines in NEI 12-06 do not consider concurrent,
unrelated beyond-design-basis external events to be within the scope of
the initiating events for the mitigating strategies. There is an
assumption of a beyond-design-basis external event that establishes the
event conditions for reasonable protection, and then it is assumed that
the event leads to an ELAP and LUHS. But, for example, there is not an
assumption of multiple beyond-design-basis external events occurring at
the same time. As a result, reasonable protection for the purposes of
compliance with Order EA-12-049 would allow the provision of specific
sets of equipment for specific hazards with the required protection for
those sets of equipment being against the hazard for which the
equipment is intended to be used.
The NRC proposes to continue the use of the phrase ``reasonable
protection'' in proposed Sec. 50.155(c)(2) in order to distinguish the
character of the required protection of GDC-2, which requires that SSCs
important to safety be designed to withstand the effects of natural
phenomena, from that of proposed Sec. 50.155(c)(2), which would allow
damage to or loss of specific pieces of equipment so long as the
capability to use some of the equipment to accomplish its intended
purpose is retained. ``Reasonable protection'' would also allow for
protection of the equipment using structures that could deform as a
result of natural phenomena so long as the equipment could be
[[Page 70634]]
deployed from the structure to its place of use.
The remaining portion of proposed Sec. 50.155(c)(2) would set the
hazard level for which ``reasonable protection'' of the equipment must
be provided. The hazard level would be the level determined for the
design basis for the facility for protection of safety-related SSCs
from the effects of natural phenomena, or, for the seismic or flooding
hazards, the greater of the hazard level determined for the design
basis for the facility and the licensee's reevaluated hazards, stemming
from the March 12, 2012, NRC letter issued under Sec. 50.54(f). The
timing for the proposed requirement for reasonable protection against
the reevaluated hazards is set by Sec. 50.155(g) at 2 years following
the effective date of this proposed rule. Operating power reactor
licensees that were requested to reevaluate their seismic and flooding
hazard levels by the NRC by letter dated March 12, 2012, under 10 CFR
50.54(f) are currently on a submittal and NRC review schedule to have
confirmation of the reevaluated hazard levels by December 2015. Given
that the rulemaking schedule for this proposed rule is to provide the
final rule to the Commission in December 2016, the anticipated
effective date of the final rule would be mid-to-late 2017. Requiring
compliance within 2 years following the effective date of the final
rule would allow licensees with a new hazard level the opportunity to
take measurements to support any necessary plant modifications during
the first refueling outage following NRC confirmation of those levels
and the opportunity to implement those modifications in a subsequent
refueling outage after the effective date of the rule. The NRC is
requesting feedback on this proposed implementation schedule in section
VI of this notice.
Proposed paragraph (c)(3) would require that licensees perform
adequate maintenance on the equipment relied on for the mitigation
strategies responsive to proposed paragraph (b)(1) to assure that the
equipment is capable of fulfilling its intended function following a
beyond-design-basis external event. The phrase ``adequate maintenance''
means sufficient routine maintenance and testing are performed,
reflecting the storage and readiness conditions of the equipment, for a
licensee to conclude that the equipment is capable of performing its
function to a degree that would support the successful execution of the
mitigation strategies of paragraph (b)(1). Provision of ``adequate
maintenance'' also entails the establishment of a system of
programmatic controls for the equipment to limit the quantity of
equipment taken out of service for maintenance and testing in order to
limit the unavailability of that equipment appropriately and to provide
assurance that sufficient equipment would remain available to satisfy
proposed paragraph (c)(1).
Proposed paragraph (c)(4) would make generically applicable the
requirements of Order EA-12-051 by requiring that licensees include a
reliable means to remotely monitor wide-range spent fuel pool levels to
support effective prioritization of event mitigation and recovery
actions.
Proposed Sec. 50.155(d) Training Requirements
Proposed Sec. 50.155(d) would require that each licensee specified
in Sec. 50.155(a) provide for the training and qualification of
personnel that perform activities in accordance with the strategies and
guidelines identified in Sec. 50.155(b)(1) and (2).
Proposed Sec. 50.155(e) Drills and Exercises
Proposed Sec. 50.155(e) would require that each licensee and
applicant specified in Sec. 50.155(a) conduct drills and exercises for
personnel that would perform activities in accordance with the
strategies and guidelines identified in Sec. 50.155(b)(1) and (2). The
use of drills and exercises allows demonstration and evaluation of the
licensee's capability to execute the integrated response capability
required by Sec. 50.155(b) mitigation strategies and guidelines in
light of the specific plant damage and operational conditions presented
by an initiating event. ``Integrated'' is used to describe the
licensee's or applicant's approach to using all tools, spaces,
qualified personnel and resources during a performance enhancing
experience to the furthest extent practical given a set of initiating
conditions and within the bounds of a drill or exercise scenario. When
two or more strategies or guidelines in Sec. 50.155(b)(1) and (2) are
potentially useful, ``integrated'' is meant that transitions to and
from one set of strategies or guidelines in Sec. 50.155(b)(1) and (2)
to another are coordinated.
This proposed rule uses the words ``drill'' and ``exercise'' as
they are defined in NUREG-0654/FEMA-REP-1, Revision 1,\9\ meaning an
evaluated performance-enhancing experience that reasonably simulates
the interactions between appropriate centers, work groups, strike
teams, or individuals that would be expected to occur during the event.
For the initial drill or exercise, the licensee would be required to
demonstrate its capability to transition to and use one or more of the
strategies that would be required by Sec. 50.155(b)(1) and (2) from
the AOPs or EOPs, whichever would govern for the initiating event and
plant degraded conditions, using the equipment and communication
systems used for the EOPs and guidelines.
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\9\ Planning Standards N.1 Exercise and N.2 Drills.
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Proposed Sec. 50.155(e)(1) would require the initial drill or
exercise to be conducted within 12 months prior to the issuance of the
first operating license (OL) for the unit described in the application.
This would allow the license applicant to implement any improvements or
corrective actions identified during the drill or exercise, and allow
the Commission to consider the results of any drill or exercise actions
in the decision on whether to authorize the OL. Because Sec.
50.155(e)(1) applies only to applicants for operating licenses, it
would not apply to holders of operating licenses under 10 CFR part 50,
who are subject to proposed Sec. 50.155(e)(4), or holders of combined
licenses under 10 CFR part 52, who are subject to proposed Sec.
50.155(e)(2) through (4). Following issuance of the operating license,
the applicant, as a licensee, would be subject to proposed Sec.
50.155(e)(3).
Proposed Sec. 50.155(e)(2) would require the licensee to conduct
an initial drill or exercise that demonstrates the capability to
transition from the AOPs or EOPs, use one or more of the strategies and
guidelines in paragraphs (b)(1) and (2) of this section, and use
communications equipment required in 10 CFR part 50, appendix E,
section VII, no more than 12 months before the date specified for
completion of the last inspections, tests, and analyses in the
inspections, tests, analyses, and acceptance criteria (ITAAC)
completion schedule as required by Sec. 52.99(a) for the unit
described in the combined license.
This proposed rule would set the completion date for the initial
drill or exercise at ``no more than 12 months before the date specified
for completion of the last inspections, tests, and analyses in the
ITAAC completion schedule required by Sec. 52.99(a) for the unit
described in the combined license'' in order to allow the licensee to
implement any improvements or corrective actions identified during the
drill or exercise, and allow the Commission to consider the results of
any drill or exercise actions.
The proposed Sec. 50.155(e)(2) requirement for initial drills or
exercises is limited to holders of combined
[[Page 70635]]
licenses under 10 CFR part 52 before the Commission has made the
finding under Sec. 52.103(g). A combined license holder for whom the
Commission has already made the finding under Sec. 52.103(g) as of the
effective date of the rule would not be subject to proposed Sec.
50.155(e)(2), but would instead be subject to Sec. 50.155(e)(4) for
the proposed initial drill requirements.
Proposed Sec. 50.155(e)(3) would require holders of operating
power reactor licenses issued under 10 CFR part 50 subsequent to the
effective date of this rule, and holders of combine licenses issued
under 10 CFR part 52 for whom the Commission has made the finding under
Sec. 52.103(g) subsequent to the effective date of this rule, to
conduct subsequent drills, exercises, or both that collectively
demonstrate a capability to use at least one of the strategies and
guidelines in each of proposed Sec. 50.155(b)(1) and (2) in succeeding
8-year intervals. This would require that the drills and exercises
performed to demonstrate this capability include transitions from other
procedures and guidelines, as applicable, and the use of communications
equipment that would be required by proposed 10 CFR part 50, appendix
E, section VII. This proposed requirement differs from the proposed
Sec. 50.155(e)(1) and (2) initial demonstration requirement, in that
it would require licensees to demonstrate a continuing capability, and
as such, it is structured to require licensees to demonstrate at least
one of the strategies and guidelines from each of the guidelines during
the 8-year interval.
Proposed Sec. 50.155(e)(4) would require holders of operating
licenses or combined licenses for which the Commission has made the
finding under Sec. 52.103(g) to conduct an initial drill or exercise
that demonstrates the capability to transition to and use one or more
of the strategies and guidelines in proposed Sec. 50.155(b)(1) and (2)
and use communications equipment required in 10 CFR part 50, appendix
E, section VII. Proposed Sec. 50.155(e)(4) would be equivalent to
proposed Sec. 50.155(e)(1) and (2) for initial drills or exercises,
but would apply to current licensees. Following this initial drill or
exercise, the licensee would be required to conduct subsequent drills,
exercises, or both that collectively demonstrate a capability to use at
least one of the strategies and guidelines in each of proposed Sec.
50.155(b)(1) and (2) in succeeding 8-year intervals. Proposed Sec.
50.155(e)(4) would be equivalent to proposed Sec. 50.155(e)(3) for
subsequent drills or exercises, but would apply to current licensees
under 10 CFR part 50 and those under 10 CFR part 52 for whom the
Commission has made the finding under Sec. 52.103(g) as of the
effective date of the rule.
Proposed Sec. 50.155(f) Change Control
Proposed Sec. 50.155(f) would establish requirements that govern
changes in the implementation of the requirements of proposed Sec.
50.155 and 10 CFR part 50, appendix E, section VII. Prior to
implementing a proposed change, proposed Sec. 50.155(f)(1) would
require the licensee to perform an evaluation to ensure that the
provisions of proposed Sec. 50.155 and 10 CFR part 50, appendix E,
section VII, continue to be met. Proposed Sec. 50.155(f)(2) would
require that licensees maintain documentation of the paragraph (f)(1)
evaluations until the requirements of this proposed Sec. 50.155 and 10
CFR part 50, appendix E, section VII, no longer apply. Finally,
proposed Sec. 50.155(f)(3) would inform licensees that proposed
changes must continue to be subject to all other applicable change
control processes.
Proposed Sec. 50.155(g) Implementation
Proposed Sec. 50.155(g) would set schedules for compliance for
different classes of licensees depending on the circumstances unique to
each class. Paragraphs (g)(1) and (2) would require licensees of
operating reactors to comply with all requirements within 2 years of
the effective date of the rule.
Proposed 10 CFR Part 50, Appendix E, Section I, Introduction
The NRC proposes adding the sentence, ``Section VII of this
appendix also provides for `Communications and Staffing Requirements
for the Mitigation of Beyond-Design-Basis Events' that do not need to
be contained within a licensee's emergency plan'' to the end of
paragraph I.2. The NRC is not proposing to require an applicant or
licensee to address or implement the proposed requirements in Section
VII of Appendix E through the applicant's or licensee's emergency plan
or to maintain the capabilities as a part of the emergency preparedness
program. This would allow for site-specific flexibility in
implementation.
Proposed 10 CFR Part 50, Appendix E, Section IV.B, Assessment Actions
The NRC proposes adding the phrase, ``including from all reactor
core and spent fuel pool sources,'' into paragraph B.1 following
``determining the magnitude of, and for continually assessing the
impact of, the releases of radioactive materials.'' This proposed rule
would require all licensees to establish the capability to perform
offsite dose assessments during an event involving concurrent
radiological releases from all on-site units and spent fuel pools, and
for multiple release points. The capability would quantify the total
releases from the site and estimate the offsite dose consequences.
Proposed 10 CFR Part 50, Appendix E, Section IV.E, Emergency Facilities
and Equipment
The NRC proposes adding the phrase, ``including from all reactor
core and spent fuel pool sources,'' into paragraph E.2 following
``equipment for determining the magnitude of, and for continuously
assessing the impact of, the release of radioactive materials to the
environment.'' This proposed rule would require that equipment used for
multi-unit dose assessment be maintained in a ready state.
Proposed 10 CFR Part 50, Appendix E, Section IV, Training
This proposed rule would move the Sec. 50.54(hh)(2) exercise
requirement from 10 CFR part 50, appendix E, section IV.F.2.j, to Sec.
50.155(e). This move would change the exercise requirement to a drill
requirement, aligning the requirement with the mitigation strategies
drill requirements described in Sec. 50.155(e).
This proposed rule would also require that periodic opportunities
for a performance-enhancing experience should be provided to personnel
responsible for performing multiple source term dose assessment and
assessing the results in accordance with the site's emergency plan and
implementing procedures.
Proposed 10 CFR Part 50, Appendix E, Section VI, Emergency Response
Data Systems
The NRC proposes to change its Emergency Response Data Systems
regulations to require the use of technology-neutral equipment. The NRC
proposes to restate the requirements in paragraph 3.c to replace the
phrase ``onsite modem'' with ``equipment'' and removing references to a
specific ``unit'' or equipment use.
Proposed 10 CFR Part 50, Appendix E, Section VII, Communications and
Staffing Requirements for the Mitigation of Beyond-Design-Basis Events
Proposed section VII would require power reactor applicants and
licensees to conduct a detailed analysis to provide the basis for the
staffing necessary for responding to a beyond-design-basis external
event as described in Sec. 50.155(b)(1) during an extended loss of ac
power (ELAP), and while access to the plant and normal access to the
[[Page 70636]]
ultimate or normal heat sink are lost. Additionally, the proposed
section VII would require power reactor applicants and licensees to
maintain at least one onsite and one offsite communications system
functional during an ELAP and a loss of the local communication
infrastructure.
The current rule in 10 CFR part 50, appendix E, section IV.E.9,
requires, ``At least one onsite and one offsite communication system;
each system shall have a backup power source.'' However, the current
rule doesn't address an interruption in the offsite communication
services. This proposed rule would require the power reactor applicants
and licensees to maintain the communication capabilities of
communication amongst onsite staff and between onsite staff and offsite
personnel in light of the lessons learned at Fukushima Dai-ichi.
Furthermore, this proposed rule would require the power reactor
applicants and licensees to submit the staffing analysis, results and
implementation plans to meet the requirements, and the submissions
would afford the NRC the opportunity to identify any common industry
implementation problems and address them in guidance.
This proposed rule would require an applicant for an operating
license to complete a detailed staffing analysis at least 2 years
before the issuance of the first operating license for full power (one
authorizing operation above 5 percent of rated thermal power). The time
frame allows the applicant to implement any improvements or corrective
actions identified during the analysis, and the results of any analysis
to inform the Commission's decision in authorizing the operating
license.
This proposed rule would require that an applicant for a combined
license conduct a detailed staffing analysis and submit the analysis
and results to the NRC 2 years before the date specified for completion
of the last inspections, tests, and analyses in the ITAAC completion
schedule required by Sec. 52.99(a) for the unit described in the
combined license. The time frame allows the applicant to implement any
staffing and communications system improvements and corrective actions
identified during the analysis.
This proposed rule would provide that when the NRC has docketed the
certifications described in Sec. 50.82(a)(1) or Sec. 52.110(a) for a
power reactor licensee, then that licensee would no longer be subject
to section VII of appendix E to 10 CFR part 50 for the unit described
in the Sec. 50.82(a)(1) or Sec. 52.110(a) certifications.
Proposed Sec. 52.80 Contents of Applications; Additional Technical
Information
Section 52.80 identifies the required additional technical
information to be included in an application for a combined license.
Proposed paragraph (d) would be amended to require a combined license
applicant to include the applicant's plans for implementing the
requirements of proposed Sec. 50.155 and 10 CFR part 50, appendix E,
section VII, including a schedule for achieving full compliance with
these requirements. This paragraph would also require the application
to include a description of: (1) The integrated response capability
that would be required by proposed Sec. 50.155(b); (2) the equipment
upon which the strategies and guidelines that would be required by
proposed Sec. 50.155(b)(1) rely, including the planned locations of
the equipment and how the equipment and SSCs would meet the design
requirements of proposed Sec. 50.155(c); and (3) the strategies and
guidelines that would be required by proposed Sec. 50.155(b)(2).
VI. Specific Requests for Comments
The NRC is seeking advice and recommendations from the public on
this proposed rule. We are particularly interested in comments and
supporting rationale from the public on the following:
1. Change Control. The provisions governing change control in
proposed Sec. 50.155(f) do not contain a criterion or a set of
criteria that would establish a threshold beyond which prior NRC review
and approval would be necessary to support a proposed change to the
facility impacting the beyond-design-basis aspects of this proposed
rulemaking and its supporting implementation guidance. For example, a
set of criteria that asks whether a proposed facility change adversely
impacts the capability to maintain and restore core cooling,
containment, and spent fuel pool cooling capabilities, in conjunction
with a criterion that asks whether the proposed facility change
adversely impacts the supporting equipment requirements in proposed
paragraph (c) might be sufficient for judging whether changes to the
facility that impact the implementation of the mitigation strategies of
proposed (b)(1) require prior NRC review and approval. What are
stakeholders' views on this proposed change control structure, and what
do stakeholders suggest for revising the change control process to
contain criteria for determining the need for prior NRC review and
approval?
2. Application of Other Change Control Processes. Proposed Sec.
50.155(f)(3) contains a requirement for licensees to use all applicable
change control processes for facility changes, and not simply apply
proposed paragraph (f) (i.e., the proposed change control process of
paragraph (f) is only applicable to facility changes with respect to
their beyond-design-basis aspects and to the extent that such changes
impact implementation of the requirements of proposed Sec. 50.155 or
the proposed 10 CFR part 50, appendix E, section VII) to the exclusion
of other change control processes. This recognizes that facility
changes can impact multiple aspects of the plant having different
applicable requirements, and being subject to different change control
requirements. For example, a licensee may want to make a facility
change (e.g., a physical connection device) to support implementation
of the beyond-design-basis external event mitigation strategies, and
this change might impact safety-related SSCs. In addition to applying
the new change control provision to ensure beyond-design-basis aspects
of the proposed change result in continued compliance with the new
requirements of this proposed rule, the licensee would also need to
apply 10 CFR 50.59 to ensure that the facility change does not, due to
its impact on safety-related SSCs, require prior NRC approval. The NRC
requests feedback on the need for this proposed provision, or
suggestions on how it might be improved.
3. Reasonable Protection. This proposed rule contains a requirement
in proposed Sec. 50.155(c)(2) that equipment supporting the proposed
mitigation requirements of paragraph (b)(1) be ``reasonably protected''
from the effects of natural phenomenon including both those in the
current plant design basis as well as the reevaluated hazards under the
March 12, 2012, Sec. 50.54(f) request concerning flooding and seismic
hazards. As a practical matter, implementation of Order EA-12-049 began
before the reevaluated hazard information was available. The NRC
recognizes that licensees were mindful of the hazard information, and
attempted to address it during implementation. The NRC requests
feedback concerning any costs and impacts that licensees would expect
to occur as a result of this proposed requirement to include such
things as rework or changes to previously implemented mitigation
strategies.
4. Mitigation of Beyond-Design-Basis Events Staffing Analysis.
Proposed 10 CFR part 50, appendix E, section VII,
[[Page 70637]]
would require an analysis for the staffing necessary to support
mitigation of a beyond-design-basis external event. This requirement
would supplement the separate staffing analysis requirement that
already exists in 10 CFR part 50, appendix E, section IV.A.9. The
reason for the two separate staffing analysis requirements is related
to the historical imposition of the requirements for the staffing
analyses in the emergency preparedness rulemaking of 2011 and the March
12, 2012, Request for Information under 10 CFR 50.54(f). The NRC is
seeking feedback on whether it would be more efficient in practice for
the two staffing analyses and their corresponding requirements to be
combined, particularly for future reactor applicants. Would there be
any unintended consequences to keeping the analyses separate or
combining them? Is there a better way of achieving the underlying
purpose of this requirement?
5. Training Requirements. Section 50.155(d) of this proposed rule
would require licensees to provide for the training and qualification
of personnel that perform activities in accordance with the strategies
and guidelines identified in paragraphs (b)(1) and (2) (i.e.,
mitigation strategies for beyond-design-basis external events and
extensive damage mitigation guidelines) using the SAT process as
defined in Sec. 55.4. The NRC notes that whereas many individuals at
licensee facilities that would be subject to this proposed rule are
trained under the SAT process (e.g., individuals specified under Sec.
50.120), some individuals (e.g., firefighting and emergency
preparedness personnel) may be currently trained under programs that
are not required by NRC regulation to use the SAT process (e.g.,
National Fire Protection Association standards for training and 10 CFR
part 50, appendix E). It is not the NRC's intent to extend the
requirement for SAT-based training to the entirety of such programs.
Rather, the intent of the proposed requirement would be to ensure that
any training that is not currently part of existing programs but would
be needed for performing activities in accordance with the strategies
and guidelines identified in paragraphs proposed Sec. 50.155(b)(1) and
(2) be identified and provided for in accordance with the SAT process.
The NRC requests comment on potential unintended consequences of the
proposed rule language for programs not currently required to be SAT-
based and if unintended consequences are identified, proposed
alternative language for requiring the necessary amendments to such
programs.
6. Drill or Exercise Frequency. Proposed Sec. 50.155(e)(3) and (4)
would require that following an initial drill or exercise, licensees
would be required to conduct subsequent drills, exercises, or both,
that collectively demonstrate a capability to use at least one of the
strategies and guidelines in each of proposed Sec. 50.155(b)(1) and
(2) in succeeding 8-year intervals. This would require that the drills
or exercises performed to demonstrate this capability include
transitions from other procedures and guidelines as applicable, and the
use of communications equipment that would be required by proposed 10
CFR part 50, appendix E, section VII, and that licensees shall not
exceed 8 years between any consecutive drills or exercises. These
requirements would be separate from the 8-year emergency preparedness
exercise cycle requirements in 10 CFR part 50, appendix E, section
IV.F. The NRC is seeking feedback on whether the drill or exercise
frequency proposed by Sec. 50.155(e)(3) and (4) is appropriate.
7. Equipment Requirements. Proposed Sec. 50.155(c)(1) would
require the capacity and capability of the equipment relied on for the
mitigation strategies required by proposed Sec. 50.155 (b)(1) to be
sufficient to simultaneously maintain or restore core cooling,
containment, and spent fuel pool cooling capabilities for all the power
reactor units within the site boundary. Additionally, proposed Sec.
50.155(c)(3) would require the equipment relied on for the mitigation
strategies in proposed Sec. 50.155(b)(1) to receive adequate
maintenance such that the equipment is capable of fulfilling its
intended function. The intent of these two proposed provisions is to
make elements of Order EA-12-049 generically-applicable. Order EA-12-
049 did not contain a specific maintenance requirement, but instead
contained a performance-based requirement ``to develop, implement and
maintain strategies,'' and failure to perform adequate maintenance
would likely lead to a failure to meet this more general requirement,
which is also contained in proposed Sec. 50.155(b)(1). Additionally,
the supporting guidance for this proposed rule for proposed Sec.
50.155(b)(1) carries forward the same approach that was used for
implementation of Order EA-12-049, and contains a number of
programmatic controls that in an analogous fashion to the maintenance
provision in proposed Sec. 50.155(c)(3), if not followed, would likely
lead to a loss of equipment capacity and capability and result in a
failure to comply with the proposed Sec. 50.155(b)(1). Therefore, the
NRC would like stakeholder views on the need for a separate maintenance
provision.
8. Equipment Protection Implementation Deadline. The NRC is
proposing to require licensees to reasonably protect the equipment
relied upon to implement the mitigation strategies required by proposed
Sec. 50.155(b)(1). That equipment would need to be reasonably
protected from the effects of natural phenomena that are, at a minimum,
equivalent to the design basis of the facility. This proposed rule
would require each licensee that received the March 12, 2012, NRC
letter issued under Sec. 50.54(f) to provide reasonable protection
against that reevaluated seismic or flooding hazard(s) by 2 years
following the effective date of the final rule, if the reevaluated
hazard exceeds the design basis of its facility. This is based on the
anticipated completion dates for the licensees' hazard reevaluations
and their confirmation by the NRC and the potential need for planning
and implementing modifications during refueling outages. The NRC
recognizes that certain licensees may need input into their analyses of
reevaluated hazards from other government agencies, without any
certainty of when that input would be provided. This reliance on
information from other entities could remove from the licensee's
control the ability to comply with the rule by a specific date. The NRC
requests comments on the proposed implementation schedule, including
suggestions for the criteria that licensees would need to satisfy to
extend the schedule.
9. Methodology for addressing reevaluated hazards. In SRM-COMSECY-
14-0037, the Commission affirmed that: (1) Licensees for operating
nuclear power plants need to address the reevaluated flooding hazards
within their mitigating strategies for beyond-design-basis external
events; and (2) licensees for operating nuclear power plants may need
to address some specific flooding scenarios that could significantly
damage the power plant site by developing targeted or scenario-specific
mitigating strategies, possibly including unconventional measures, to
prevent fuel damage in reactor cores or spent fuel pools. The NRC is
proposing to require licensees for operating nuclear power plants to
address the reevaluated flooding hazard levels by reasonably protecting
the mitigating strategies equipment to those levels if they exceed the
design-basis flood level
[[Page 70638]]
for the facility. Alternatively, the NRC could: (1) Place this
requirement within Sec. 50.155(b)(1) as a condition the associated
strategies and guidelines must be capable of addressing; or (2) include
a separate requirement for targeted or scenario-specific mitigating
strategies as an option to address the reevaluated flooding hazards.
The NRC seeks comment on whether the first of these options would be a
better means to communicate the need for a licensee's strategies and
guidelines to be capable of execution in the context of the new
flooding hazard levels than including the requirement in Sec.
50.155(c)(2). The NRC seeks additional comment on whether it would be
appropriate to allow further flexibility in the licensee's strategies
and guidelines by establishing an alternative means of compliance that
does not include the surrogate condition of a loss of all alternating
current power for specific beyond-design-basis conditions such as the
reevaluated flooding hazards. For example, if a licensee could protect
their internal power distribution system and emergency diesel
generators from the reevaluated flooding hazard, it may not be
necessary for the licensee to assume the loss of all alternating
current power.
10. Command and Control. Requirements for command and control and
organizational structures currently exist in numerous locations,
including 10 CFR part 50, appendix E, section IV.A, as well as within
the typical administrative controls portions of technical
specifications for power reactor licensees. These requirements do not
plainly limit the scope of the roles, responsibilities and authorities
to events within the design or licensing basis of the facility,
although past NRC practice has been to treat these requirements in that
manner. This proposed rule includes a further requirement on the
subject in order to clarify the scope of what is required for
organizational structures at power reactor licensees. Alternatively,
the NRC is considering whether the expansion of scope of regulatory
oversight of the organizational structures would require imposition of
a new requirement or the expansion of scope would be better
accomplished by communicating the understanding that the scope of the
existing requirements covers the full spectrum of events that would be
included in this rulemaking. The latter method of accomplishing this
would have the potential advantage of leaving the requirements for
command and control and organizational structures in a single
regulation (i.e., 10 CFR part 50, appendix E, section IV.A). The NRC
seeks stakeholder input on this subject.
VII. Regulatory Flexibility Certification
Under the Regulatory Flexibility Act (5 U.S.C. 605(b)), the NRC
certifies that this rule would not, if promulgated, have a significant
economic impact on a substantial number of small entities. This
proposed rule affects only the licensing and operation of nuclear power
plants. The companies that own these plants do not fall within the
scope of the definition of ``small entities'' set forth in the
Regulatory Flexibility Act or established in 10 CFR 2.810, ``NRC size
standards.''
VIII. Availability of Regulatory Analysis
The NRC has prepared a draft regulatory analysis on this proposed
regulation. The analyses examine the costs and benefits of the
alternatives considered by the NRC. The NRC requests public comment on
the draft regulatory analysis. The draft regulatory analysis is
available as indicated in the ``Availability of Documents'' section of
this document. Comments on the draft analysis may be submitted to the
NRC as indicated in the ADDRESSES section of this document.
IX. Availability of Guidance
The NRC is issuing for comment draft regulatory guidance (DG) to
support the implementation of the proposed requirements in this
rulemaking. You may access information and comment submissions related
to the DGs by searching on https://www.regulations.gov under Docket ID
NRC-2014-0240.
The DG-1301, ``Flexible Mitigation Strategies for Beyond-Design-
Basis Events,'' provides licensees and applicants with an acceptable
method of responding to an ELAP and demonstrating compliance with the
proposed regulations requiring additional defense-in-depth measures for
the mitigation of beyond-design-basis external events.
The DG-1317, ``Wide-Range Spent Fuel Pool Level Instrumentation,''
describes one method of providing safety enhancements in the form of
reliable spent fuel pool instrumentation for beyond-design-basis
external events.
The DG-1319, ``Integrated Response Capabilities for Beyond-Design-
Basis Events,'' describes one method the NRC endorses to enhance a
site's ability to implement the on-site emergency preparedness programs
and guidelines and better cope with conditions resulting from a beyond-
design-basis external event.
You may submit comments on the draft regulatory guidance by the
following methods:
Federal Rulemaking Web site: Go to https://www.regulations.gov and search for Docket ID NRC-2014-0240. Address
questions about NRC dockets to Carol Gallagher; telephone: 301-415-
3463; email: Carol.Gallagher@nrc.gov.
Mail comments to: Cindy Bladey, Office of Administration,
Mail Stop: OWFN-12-H08, U.S. Nuclear Regulatory Commission, Washington,
DC 20555-0001.
X. Backfitting and Issue Finality
Proposed Rule
As required by Sec. Sec. 50.109, 52.63, 52.83, and 52.98, the
Commission has completed a backfit and issue finality analysis for this
proposed rule. The Commission finds that the backfit contained in this
proposed rule, (i.e., multiple source term dose assessment), is
considered, as part of the set of emergency preparedness (EP)
requirements, to provide continued reasonable assurance of adequate
protection of public health and safety under 10 CFR 50.109(a)(4)(ii),
consistent with the regulatory basis for EP that has existed for more
than three decades. Availability of the backfit and issue finality
analysis is indicated in the ``Availability of Documents'' section of
this document.
Draft Regulatory Guidance
The NRC is issuing, for public comment, three DGs that would
support implementation of this proposed rule: DG-1301, ``Flexible
Mitigation Strategies for Beyond-Design-Basis Events''; DG-1317,
``Wide-Range Spent Fuel Pool Level Instrumentation''; and DG-1319,
``Integrated Response Capabilities for Beyond-Design-Basis Events.''
These DGs would provide guidance on the methods acceptable to the NRC
for complying with this proposed rule. The DGs would apply to all
current holders of, and applicants for operating licenses under 10 CFR
part 50 and combined licenses under 10 CFR part 52.
Issuance of the DGs in final form would not constitute backfitting
under Sec. 50.109 and would not otherwise be inconsistent with the
issue finality provisions in 10 CFR part 52. As discussed in the
``Implementation'' section of each DG, the NRC has no current intention
to impose the DGs, if finalized, on current holders of an operating
license or combined license.
Applying the DGs, if finalized, to applications for operating
licenses or combined licenses would not constitute
[[Page 70639]]
backfitting as defined in Sec. 50.109 or be otherwise inconsistent
with the applicable issue finality provisions in 10 CFR part 52,
because such applicants are not within the scope of entities protected
by Sec. 50.109 or the applicable issue finality provisions in 10 CFR
part 52. Neither Sec. 50.109 nor the issue finality provisions under
10 CFR part 52--with certain exceptions--were intended to apply to
every NRC action that substantially changes the expectations of current
and future applicants.
XI. Cumulative Effects of Regulation
The NRC engaged extensively with external stakeholders throughout
this rulemaking and related regulatory activities. Public involvement
has included: (1) Issuance of two ANPRs and two draft regulatory basis
documents that requested stakeholder feedback; (2) issuance of
conceptual and preliminary proposed rule language in support of public
meetings; (3) numerous public meetings with the ACRS; and (4) many more
public meetings that supported both the development of the draft
regulatory basis documents as well as development of the implementing
guidance for the two orders that this rulemaking would make generically
applicable (i.e., Orders EA-12-049 and EA-12-051). Section II.E of this
notice provides a more detailed discussion of public involvement.
The NRC is following its CER process with regard to the issuance of
draft guidance with this proposed rule to support more informed
external stakeholder feedback. The ``Availability of Guidance'' section
of this document describes how the public can access the draft guidance
for which the NRC seeks external stakeholder feedback.
Finally, the NRC is requesting CER feedback on the following
questions:
1. In light of the current or projected CER challenges, does this
proposed rule's compliance dates provide sufficient time to implement
the new proposed requirements, including changes to programs,
procedures, and the facility? Specifically, the current proposed rule
would require each holder of an operating license or holder of a
combined license for which the Commission made the finding specified in
Sec. 52.103(g) to comply with all provisions of this proposed rule no
later than 2 years following the effective date of the rule, unless
otherwise specified in proposed 10 CFR part 50, appendix E, section
VII. The NRC requests feedback on what this time period should be.
2. If current or projected CER challenges exist, what should be
done to address this situation? For example if more time is required
for implementation of the new requirements, what period of time would
be sufficient?
3. Do other NRC regulatory actions, including the post-Fukushima
actions and any other actions (e.g., generic communications, license
amendment requests, inspection findings of a generic nature), influence
the implementation of this proposed rule's requirements?
4. Are there unintended consequences associated with implementation
of these requirements, including implementing the requirements as a
priority over other facility modifications that are currently being
prioritized and scheduled?
5. Please provide feedback on the NRC's supporting regulatory
analysis for this rulemaking. Of note, the regulatory analysis
estimates the cost of implementing both Order EA-12-049 and Order EA-
12-051. The NRC would appreciate feedback regarding those estimates.
XII. Plain Writing
The Plain Writing Act of 2010 (Pub. L. 111-274) requires Federal
agencies to write documents in a clear, concise, and well-organized
manner. The NRC has written this document to be consistent with the
Plain Writing Act as well as the Presidential Memorandum, ``Plain
Language in Government Writing,'' published June 10, 1998 (63 FR
31883). The NRC requests comment on this document with respect to the
clarity and effectiveness of the language used.
XIII. Environmental Assessment and Proposed Finding of No Significant
Environmental Impact
The Commission has determined under the National Environmental
Policy Act of 1969, as amended, and the Commission's regulations in
subpart A of 10 CFR part 51, that this proposed rule, if adopted, would
not be a major Federal action significantly affecting the quality of
the human environment, and an environmental impact statement is not
required. The basis of this determination reads as follows: The
proposed action would not result in any radiological effluent impact as
it would not change any design basis structures, systems, or components
that function to limit the release of radiological effluents during or
after an accident. This proposed rule does not change the standards and
requirements for radiological releases and effluents. None of the
revisions or additions in this proposed rule would affect current
occupational or public radiation exposure. The proposed rule would not
cause any significant non-radiological impacts, as it would not affect
any historic sites or any non-radiological plant effluents. The NRC
concludes that this proposed rule would not cause any significant
radiological or non-radiological impacts on the human environment.
The determination of this environmental assessment is that there
would be no significant effect on the quality of the human environment
from this action. Public stakeholders should note, however, that
comments on any aspect of this environmental assessment may be
submitted to the NRC as indicated in the Addresses section of this
document. The environmental assessment is available as indicated under
the ``Availability of Documents'' section.
The NRC has sent a copy of the environmental assessment and this
proposed rule to every State Liaison Officer and has requested
comments.
XIV. Paperwork Reduction Act
This proposed rule contains new or amended information collection
requirements that are subject to the Paperwork Reduction Act of 1995
(44 U.S.C. 3501 et seq). This proposed rule has been submitted to the
OMB for approval of the information collection requirements.
Type of submission, new or revision: Revision.
The title of the information collection: Mitigation of Beyond-
Design-Basis Events Proposed Rule.
The form number if applicable: Not applicable.
How often the collection is required: Once.
Who will be required or asked to report: Operating nuclear power
reactor sites (comprised of 65 operating sites).
An estimate of the number of annual responses: 65 (65
recordkeepers).
The estimated number of annual respondents: 65.
An estimate of the total number of hours needed to complete the
requirement or request: 6500.
Abstract: In response to the Great East Japan Earthquake of March
11, 2011, the NRC is seeking to: (1) Make the requirements in Order EA-
12-049 and Order EA-12-051 generically-applicable giving consideration
to lessons learned from implementation of the orders; (2) establish new
requirements for an integrated response capability; (3) establish new
requirements for actions that are related to onsite emergency response;
and (4) address a number of PRMs submitted following the March 2011
Fukushima Dai-ichi event.
[[Page 70640]]
The NRC is seeking public comment on the potential impact of the
information collections contained in this proposed rule and on the
following issues:
1. Is the proposed information collection necessary for the proper
performance of the functions of the NRC, including whether the
information will have practical utility?
2. Is the estimate of burden accurate?
3. Is there a way to enhance the quality, utility, and clarity of
the information to be collected?
4. How can the burden of the information collection be minimized,
including the use of automated collection techniques?
A copy of the OMB clearance package and proposed rule is available
in ADAMS under Accession No. ML15274A031 or may be viewed free of
charge at the NRC's PDR, One White Flint North, 11555 Rockville Pike,
Room O-1 F21, Rockville, MD 20852. You may obtain information and
comment submissions related to the OMB clearance package by searching
on https://www.regulations.gov under Docket ID NRC-2014-0240.
You may submit comments on any aspect of these proposed information
collections, including suggestions for reducing the burden and on the
previously stated issues, by the following methods:
Federal Rulemaking Web site: Go to https://www.regulations.gov and search for Docket ID NRC-2012-0059.
Mail comments to: FOIA, Privacy, and Information
Collections Branch, Office of Information Services, Mail Stop: T-5 F53,
U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001 or to
Vlad Dorjets, Desk Officer, Office of Information and Regulatory
Affairs (3150-0011 and 3150-0151), NEOB-10202, Office of Management and
Budget, Washington, DC 20503; telephone: 202-395-7315, email:
oira_submission@omb.eop.gov.
Submit comments by December 14, 2015. Comments received after this
date will be considered if it is practical to do so, but the NRC staff
is able to ensure consideration only for comments received on or before
this date.
Public Protection Notification
The NRC may not conduct or sponsor, and a person is not required to
respond to, a request for information or an information collection
requirement unless the requesting document displays a currently valid
OMB control number.
XV. Criminal Penalties
For the purposes of Section 223 of the Atomic Energy Act of 1954,
as amended (AEA), the NRC is issuing this proposed rule that would
amend 10 CFR parts 50 and 52 under one or more of Sections 161b, 161i,
or 161o of the AEA. Willful violations of the rule would be subject to
criminal enforcement. Criminal penalties as they apply to regulations
in 10 CFR parts 50 and 52 are discussed in Sec. Sec. 50.111 and
52.303.
XVI. Coordination with NRC Agreement States
The Agreement States are receiving notification of the publication
of this proposed rule.
XVII. Compatibility of Agreement State Regulations
Under the ``Policy Statement on Adequacy and Compatibility of
Agreement State Programs,'' approved by the Commission on June 20,
1997, and published in the Federal Register (62 FR 46517; September 3,
1997), this proposed rule is classified as compatibility category
``NRC.'' Compatibility is not required for Category ``NRC''
regulations. The NRC program elements in this category are those that
relate directly to areas of regulation reserved to the NRC by the AEA
or the provisions of title 10 of the Code of Federal Regulations, and
although an Agreement State may not adopt program elements reserved to
the NRC, it may wish to inform its licensees of certain requirements
via a mechanism that is consistent with a particular State's
administrative procedure laws, but does not confer regulatory authority
on the State.
XVIII. Voluntary Consensus Standards
The National Technology Transfer and Advancement Act of 1995,
Public Law 104-113, requires that Federal agencies use technical
standards that are developed or adopted by voluntary consensus
standards bodies unless the use of such a standard is inconsistent with
applicable law or otherwise impractical. In this proposed rule, the NRC
would add requirements for the mitigation of beyond-design-basis
events. This action does not constitute the establishment of a standard
that contains generally applicable requirements.
XIX. Public Meeting
The NRC will conduct a public meeting on this proposed rule for the
purpose of describing the proposed rule to the public and answering
questions from the public on the proposed rule.
The NRC will publish a notice of the location, time, and agenda for
the meeting on the NRC's public meeting Web site within at least 10
calendar days before the meeting. Stakeholders should monitor the NRC's
public meeting Web site for information about the public meeting at:
https://www.nrc.gov/public-involve/public-meetings/index.cfm. The
meeting notice will also be added to the Federal rulemaking Web site at
https://www.regulations.gov under Docket ID NRC-2014-0240. See the
``Availability of Documents'' section of this document for instructions
on how to subscribe to a docket on the Federal rulemaking Web site.
XX. Availability of Documents
The documents identified in the following table are available to
interested persons through one or more of the following methods, as
indicated.
------------------------------------------------------------------------
ADAMS accession No./
Document web link/Federal
Register citation
------------------------------------------------------------------------
Primary Rulemaking Documents
------------------------------------------------------------------------
Draft Regulatory Analysis and Backfit and Issue ML15265A610
Finality Analysis.
Environmental Assessment........................ ML15260B014
------------------------------------------------------------------------
Draft Regulatory Guides
------------------------------------------------------------------------
DG-1301, Flexible Mitigation Strategies for ML13168A031
Beyond-Design-Basis Events.
DG-1317, Wide-Range Spent Fuel Pool Level ML14245A454
Instrumentation.
DG-1319, Integrated Response Capabilities for ML14265A070
Beyond-Design-Basis Events.
[[Page 70641]]
Other References
------------------------------------------------------------------------
ACRS Transcript--Full Committee, Discuss ML14345A387
Preliminary Mitigation of Beyond-Design-Basis
Events Rulemaking Language, December 4, 2014.
ACRS Transcript--Fukushima Subcommittee, Discuss ML14337A671
Preliminary Mitigation of Beyond-Design-Basis
Events Rulemaking Language, November 21, 2014.
ACRS Transcript--Full Committee, Discuss ML14223A631
Consolidation of Station Blackout Mitigation
Strategies and Onsite Emergency Response
Capabilities Rulemakings, July 10, 2014.
ACRS Transcript--Full Committee, Discuss the ML13175A344
Station Blackout Mitigation Strategies
Regulatory Basis, June 5, 2013.
ACRS Transcript--Joint Fukushima and PRA ML14265A059
Subcommittees, Discuss CPRR Technical Analysis,
August 22, 2014.
ACRS Transcript--Plant Operations and Fire ML13063A403
Protection Subcommittee, Discuss the Onsite
Emergency Response Capabilities Regulatory
Basis, February 6, 2013.
ACRS Transcript--Reactor Safeguards Reliability ML14337A651
and PRA Subcommittee, Discuss CPRR Technical
Analysis, November 19, 2014.
ACRS Transcript--Regulatory Policies and ML13148A404
Practices Subcommittee, Discuss the Station
Blackout Mitigation Strategies Regulatory
Basis, December 5, 2013, and April 23, 2013.
American National Standards Institute/American https://www.ans.org/
Nuclear Society 3.2-2012, ``Administrative store/
Controls and Quality Assurance for the
Operational Phase of Nuclear Power Plants''.
CLI-12-09, South Carolina Electric & Gas Co. and ML12090A531
South Carolina Public Service Authority (Also
Referred to as Santee Cooper).
COMGBJ-11-0002, ``NRC Actions Following the ML110800456
Events in Japan,'' March, 21, 2011.
COMSECY-13-0002, ``Consolidation of Japan ML13011A037
Lessons Learned Near-Term Task Force
Recommendations 4 and 7 Regulatory
Activities,'' January 25, 2013.
COMSECY-13-0010, ``Schedule and Plans for Tier 2 ML12339A262
Order on Emergency Preparedness for Japan
Lessons Learned,'' dated March 27, 2013.
COMSECY-14-0037, ``Integration of Mitigating ML14309A256
Strategies for Beyond-Design-Basis External
Events and The Reevaluation of Flooding
Hazards,'' November 21, 2014.
Conceptual Consolidated Preliminary Proposed ML14052A057
Rule Language for NTTF Recommendations 4, 7, 8
and 9, February 21, 2014.
Containment Performance and Release Reduction ML15022A214
Draft Regulatory Basis.
Crystal River Unit 3, ``NRC Response to Duke ML13325A847
Energy's Final Response to The March 2012
Request for Information Letter,'' January 22,
2014.
Crystal River Unit 3, ``Rescission of Order EA- ML13212A366
12-049, 'Order Modifying Licenses with Regard
to Requirements for Mitigation Strategies for
Beyond Design Basis External Events','' August
27, 2013.
Crystal River Unit 3, Final Response to March ML13274A341
12, 2012 Information Request Regarding
Recommendations 2.1, 2.3 and 9.3, September 25,
2013.
Crystal River Unit 3, ``Rescission Of Order EA- ML13203A161
12-051, `Order Modifying Licenses With Regard
To Reliable Spent Fuel Pool Instrumentation',''
August 27, 2013.
Federal Register Notice--Enhancements to 76 FR 72560
Emergency Preparedness Regulations, Final Rule,
November 23, 2011.
Federal Register Notice--Onsite Emergency 78 FR 63901
Response Capabilities, Regulatory Basis,
October 25, 2013.
Federal Register Notice--Onsite Emergency 77FR 23161
Response.
Capabilities, Advance Notice of Proposed
Rulemaking, April 18, 2012.
Federal Register Notice--Onsite Emergency 78 FR 1154
ResponseCapabilities, Draft Regulatory Basis,
January 8, 2013.
Federal Register Notice--Onsite Emergency 78 FR 68774
Response.
Capabilities, Preliminary Proposed Rule
Language, November 15, 2013.
Federal Register Notice--Power Reactor Security 74 FR 13926
Requirements, Final Rule, March 27, 2009.
Federal Register Notice--PRM-50-100, Petition 78 FR 44034
for Rulemaking Submitted by the Natural
Resources Defense Council, Inc., July 23, 2013.
Federal Register Notice--PRM-50-101, Petition 77 FR 16483
for Rulemaking Submitted by the Natural
Resources Defense Council, Inc., March 21, 2012.
Federal Register Notice--PRM-50-102, Petition 77 FR 25104
for Rulemaking; Submitted by the Natural
Resources Defense Council, Inc., April 27, 2012.
Federal Register Notice--PRM-50-96, Long-Term 77 FR 74788
Cooling and Unattended Water Makeup of Spent
Fuel Pools, Consideration in the Rulemaking
Process, December 18, 2012.
Federal Register Notice--PRM-50-97, PRM-50-98,.. 76 FR 58165
PRM-50-99, PRM-50-100, PRM-50-101, PRM-50-102,
Petitions for Rulemaking Submitted by the
Natural Resources Defense Council, Inc., Notice
of Receipt, September 20, 2011.
Federal Register Notice--Statement of Principles 62 FR 46517
and Policy for the Agreement State Program;
Policy Statement on Adequacy and Compatibility
of Agreement State Programs, Final Policy
Statements, September 3, 1997.
Federal Register Notice--Station Blackout 78 FR 21275
Mitigation Strategies, Draft Regulatory Basis
and Draft Rule Concepts, April 10, 2013.
Federal Register Notice--Station Blackout 78 FR 44035
Mitigation Strategies, Regulatory Basis, July
23, 2013.
Federal Register Notice--Station Blackout, 77 FR 16175
Advance Notice of Proposed Rulemaking, March
20, 2012.
Interim Staff Guidance, NSIR/DPR-ISG-01, ML113010523
``Emergency Planning for Nuclear Power
Plants,'' November 2011.
JLD-ISG-2012-01, ``Compliance with Order EA-12- ML12229A166
049, Order Modifying Licenses with Regard to
Requirements for Mitigation Strategies for
Beyond-Design-Basis External Events,'' Revision
0, August 29, 2012.
Inspection Manual Chapter (IMC) 0308, ``Reactor ML062890421
Oversight Process Basis Document,'' Attachment
2, ``Technical Basis for Inspection Program,''
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Kewaunee Power Station, 60-Day Response to March ML13123A004
12, 2012, Information Request Regarding
Recommendation 2.1. Seismic Reevaluations,
April 29, 2013.
[[Page 70642]]
Kewaunee Power Station, Rescission of Order EA- ML14059A411
12-049, ``Order Modifying Licenses with Regard
to Requirements for Mitigation Strategies for
Beyond Design Basis External Events,'' June 10,
2014.
Kewaunee Power Station, Response to Request for ML13322B255
Relief from Responding Further to the March
2012 Request for Information Letter for
Recommendation 9.3, January 22, 2014.
Letter from ACRS to Chairman Jaczko, ``Initial ML11284A136
ACRS Review of: (1) The NRC Near-Term Task
Force Report on Fukushima and (2) Staff's
Recommended Actions to be Taken Without
Delay,'' October 13, 2011.
Letter from ACRS to Mr. R. W. Borchardt, ML12072A197
``Response To February 27, 2012 Letter
Regarding Final Disposition Of Fukushima-
Related ACRS Recommendations In Letters Dated
October 13, 2011, And November 8, 2011,'' March
13, 2012.
Letter from R.W. Borchardt to J. Sam Amijo, ML12030A198
Chairman ACRS, ``Final Disposition Of The
Advisory Committee On Reactor Safeguards'
Review Of (1) The U.S. Nuclear Regulatory
Commission Near-Term Task Force Report On
Fukushima, (2) Staff's Recommended Actions To
Be Taken Without Delay (SECY-11-0124), And (3)
Staff's Prioritization Of Recommended Actions
To Be Taken In Response To Fukushima Lessons-
Learned,'' February 27, 2012.
Letter from ACRS to Chairman Stephen G. Burns, ML15111A271
``Draft SECY Paper Proposed Rulemaking:
Mitigation of Beyond-Design-Basis Events (RIN
3150-AJ49),'' April 22, 2015.
Letter from Mark Satorius to John Stetkar, ML15125A485
``Draft SECY Paper Proposed Rulemaking:
Mitigation of Beyond-Design-Basis Events (RIN
3150-AJ49),'' May 15, 2015.
Letter from NEI to Mark Satorious, ``Use of ML15217A314
Qualitative Factors in Regulatory Decision
Making,'' May 11, 2015.
NEI 06-12, ``B.5.b Phase 2&3 Submittal ML070090060
Guideline,'' Revision 2, December 2006.
NEI 10-05, ``Assessment of On-Shift Emergency ML111751698
Response Organization Staffing and
Capabilities,'' Revision 0, June 2011.
NEI 12-01, ``Guideline for Assessing Beyond ML12125A412
Design Basis Accident Response Staffing and
Communications Capabilities,'' Revision 0, May
2012.
NEI 12-06, ``Diverse and Flexible Coping ML15279A426
Strategies (FLEX) Implementation Guide,''
Revision 1a, October 2015.
NEI 13-06, ``Enhancements to Emergency Response ML14269A230
Capabilities for Beyond Design Basis Accidents
and Events,'' Revision 0, September 2014.
NEI 14-01, ``Emergency Response Procedures and ML14269A236
Guidelines for Beyond Design Basis Events and
Severe Accidents,'' Revision 0, September 2014.
NEI 91-04 (formerly NUMARC 91-04), Severe ML072850981
Accident Issue Closure Guidelines, Revision 1,
December 1994.
Non-concurrence NCP-2015-003.................... ML15091A646
NUREG-0654/FEMA-REP-1, ``Criteria for ML040420012
Preparation and Evaluation of Radiological
Emergency Response Plans and Preparedness in
Support of Nuclear Power Plants,'' Revision 1,
November 1980.
NUREG-0660, Volume1 and 2, ``NRC Action Plan ML072470526 and
Developed as a Result of the TMI-2 Accident,'' ML072470524
May 1980.
NUREG-0711, ``Human Factors Engineering Program ML12324A013
Review Model,'' Revision 3, November 2012.
NUREG-0737, ``Clarification of TMI Action Plan ML102560051
Requirements,'' November 1980.
NUREG-0737, ``Clarification of TMI Action Plan ML102560009
Requirements,'' Supplement 1, November 1980.
NUREG-1935, ``State-of-the-Art Reactor ML12332A057
Consequence Analyses (SOARCA) Report,''
November 2012.
Omaha Public Power District's Overall Integrated ML13116A208
Plan (Redacted) in Response to March 12, 2012,
Order EA-12-049, February 28, 2013.
Order EA-02-026, ``Order for Interim Safeguards ML020510635
and Security Compensatory Measures,'' February
25, 2002.
Order EA-12-049, ``Issuance of Order to Modify ML12054A735
Licenses With Regard to Requirements for
Mitigation Strategies for Beyond-Design-Basis
External Events,'' (Mitigating Strategies
Order), March 12, 2012.
Order EA-12-051, ``Order Modifying Licenses with ML12056A044
Regard to Reliable Spent Fuel Pool
Instrumentation''.
Preliminary Proposed Rule Language for ML14336A641
Mitigation of Beyond-Design-Basis Events
Rulemaking made available to the public on
November 13, 2014, and December 8, 2014, to
support public discussion with the ACRS.
Preliminary Proposed Rule Language for ML14218A253
Mitigation of Beyond-Design-Basis Events
Rulemaking, August 15, 2014.
PRM 50-102, ``NRDC's Petition For Rulemaking to ML11216A242
Require More Realistic Training on Severe
Accident Mitigation Guidelines,'' July 26, 2011.
PRM 50-97, ``NRDC's Petition For Rulemaking to ML11216A237
Require Emergency Preparedness Enhancements for
Prolonged Station Blackouts,'' July 26, 2011.
PRM-50-100, ``NRDC's Petition For Rulemaking to ML11216A240
Require Licensees to Improve Spent Nuclear Fuel
Pool Safety,'' July 26, 2014.
PRM-50-101, ``NRDC's Petition For Rulemaking to ML11216A241
Revise 10 CFR Sec. 50.63,'' July 26, 2011.
PRM-50-96, ``Petition for Rulemaking Submitted ML110750145
by Thomas Popik on Behalf of the Foundation for
Resilient Societies to adopt regulations that
would require facilities licensed by the NRC
under 10 CFR Part 50 to assure long-term
cooling and unattended water makeup of spent
fuel pools,'' March 14, 2011.
PRM-50-98, ``NRDC's Petition For Rulemaking to ML11216A238
Require Emergency Preparedness Enhancements for
Multiunit Events,'' July 26, 2011.
Regulatory Issue Summary 2009-13, ``Emergency ML092670124
Response Data System Upgrade from Modem to
Virtual Private Network Appliance,'' September
28, 2009.
Request for Information Pursuant to Title 10 of ML12053A340
the Code of Federal Regulations 50.54(f)
Regarding Recommendations 2.1, 2.3, and 9.3, of
the Near-Term Task Force Review of Insights
from the Fukushima Dai-Ichi Accident, March 12,
2012.
Severe Accident Management Guidance Technical https://www.epri.com/
Basis Report, Volume 1: Candidate High-Level abstracts/Pages/
Actions and Their Effects. EPRI, Palo Alto, CA: ProductAbstract.aspx?
2012. 1025295. ProductId=1025295
Severe Accident Management Guidance Technical
Basis Report, Volume 2: The Physics of Accident
Progression. EPRI, Palo Alto, CA: 2012. 1025295.
San Onofre Nuclear Generating Station Units 2 ML14113A572
and 3, ``Rescission of Order EA-12-049, 'Order
Modifying Licenses with Regard to Requirements
for Mitigation Strategies for Beyond Design
Basis External Events','' June 30, 2014.
[[Page 70643]]
San Onofre Nuclear Generating Station Units 2 ML13329A826
and 3, ``NRC Response To Southern California
Edison's Final Response to the March 2012
Request for Information Letter,'' January 22,
2014.
San Onofre Nuclear Generating Station Units 2 ML13276A020
and 3, Final Response to the March 12, 2012
Information Request Regarding Near-Term Task
Force Recommendations 2.1, 2.3, and 9.3 and
Corresponding Commitments San Onofre Nuclear
Generating Station (SONGS) Units 2 and 3,
September 30, 2013.
San Onofre Nuclear Generating Station Units 2 ML14111A069
and 3, ``Rescission of Order EA-12-051, `Order
Modifying Licenses with Regard to Reliable
Spent Fuel Pool Instrumentation','' June 30,
2014.
SECY-11-0093, ``Near-Term Report and ML11186A950
Recommendations for Agency Actions Following
the Events in Japan,'' July 12, 2011.
SECY-11-0124, ``Recommended Actions to be Taken ML11245A127
Without Delay from the Near-Term Task Force
Report,'' September 9, 2011.
SECY-11-0137, ``Prioritization of Recommended ML11272A111
Actions to Be Taken in Response to Fukushima
Lessons Learned,'' October 3, 2011.
SECY-12-0025, ``Proposed Orders and Requests for ML12039A103
Information in Response to Lessons Learned From
Japan's March 11, 2011, Great T[omacr]hoku
Earthquake and Tsunami,'' February 17, 2012.
SECY-13-0132, ``Plan for Updating the U.S. ML13274A495
Nuclear Regulatory Commission's Cost Benefit
Guidance,'' January 2, 2014.
SECY-14-0046, ``Fifth 6-Month Status Update on ML14064A523
Response to Lessons Learned From Japan's March
11, 2011, Great Tohoku Earthquake and
Subsequent Tsunami,'' April 17, 2014.
SECY-15-0065, ``Proposed Rulemaking: Mitigation ML15049A201
of Beyond-Design-Basis Events (RIN 3150-
AJ49),'' April 30, 2015.
SECY-89-012, ``Staff Plans for Accident ML12251A414
Management Regulatory and Research Programs,''
January 18, 1989.
SECY-97-132, ``Status of the Integration Plan ML992930144
for Closure of Severe Accident Issues and the
Status of Severe Accident Research,'' June 23,
1997.
SECY-98-131, ``Status of the Integration Plan ML992880008
for Closure of Severe Accident Issues and the
Status of Severe Accident Research,'' June 8,
1998.
SRM-SECY-15-0065, ``Proposed Rulemaking: ML15239A767
Mitigation of Beyond-Design-Basis Events (RIN
3150-AJ49)''.
SRM-COMSECY-14-0037, ``Integration of Mitigating ML15089A236
Strategies for Beyond-Design-Basis External
Events and The Reevaluation of Flooding
Hazards''.
SRM-COMSECY-13-0002, ``Consolidation of Japan ML13063A548
Lessons Learned Near-Term Task Force
Recommendations 4 and 7 Regulatory Activities''.
SRM-SECY-11-0093, ``Near-Term Report and ML112310021
Recommendations for Agency Actions Following
the Events in Japan,'' August 19, 2011.
SRM-SECY-11-0137, ``Prioritization of ML113490055
Recommended Actions to Be Taken in Response to
Fukushima Lessons Learned,'' December 15, 2011.
SRM-SECY-13-0132, ``U.S. Nuclear Regulatory ML14139A104
Commission Staff Recommendation for the
Disposition of Recommendation 1 of the Near-
Term Task Force Report,'' May 19, 2014.
SRM-SECY-2011-0124, ``Recommended Actions to be ML112911571
Taken Without Delay From the Near-Term Task
Force Report,'' October 18, 2011.
Temporary Instruction 2515/191, ``Inspection of ML14273A444
the Licensee's Responses to Mitigation
Strategies Order EA-12-049, Spent Fuel Pool
Instrumentation Order EA-12-051 and Emergency
Preparedness Information Requested in NRC March
12, 2012,'' March 12, 2012.
Temporary Instruction 2515/184, ``Availability ML11115A053
and Readiness Inspection of Severe Accident
Management Guidelines (SAMGs),'' April 29, 2011.
Vermont Yankee Nuclear Power Station, ML14321A685
``Rescission of Order EA-12-049, 'Order
Modifying Licenses with Regard to Requirements
for Mitigation Strategies for Beyond Design
Basis External Events','' March 2, 2015.
Vermont Yankee Nuclear Power Station, ML14321A696
``Rescission of Order EA-12-051, 'Order
Modifying Licenses with Regard to Reliable
Spent Fuel Pool Instrumentation','' March 2,
2015.
------------------------------------------------------------------------
Throughout the development of this rulemaking, the NRC may post
documents related to this rulemaking, including public comments, on the
Federal rulemaking Web site at https://www.regulations.gov under Docket
ID NRC-2014-0240. The Federal rulemaking Web site allows you to receive
alerts when changes or additions occur in a docket folder. To
subscribe: (1) Navigate to the docket folder (NRC-2014-0240); (2) click
the ``Sign up for Email Alerts'' link; and (3) enter your email address
and select how frequently you would like to receive emails (daily,
weekly, or monthly).
List of Subjects
10 CFR Part 50
Administrative practice and procedure, Antitrust, Classified
information, Criminal penalties, Education, Fire prevention, Fire
protection, Incorporation by reference, Intergovernmental relations,
Nuclear power plants and reactors, Penalties, Radiation protection,
Reactor siting criteria, Reporting and recordkeeping requirements,
Whistleblowing.
10 CFR Part 52
Administrative practice and procedure, Antitrust, Backfitting,
Combined license, Early site permit, Emergency planning, Fees,
Incorporation by reference, Inspection, Limited work authorization,
Nuclear power plants and reactors, Penalties, Probabilistic risk
assessment, Prototype, Reactor siting criteria, Redress of site,
Reporting and recordkeeping requirements, Standard design, Standard
design certification.
For the reasons set out in the preamble and under the authority of
the Atomic Energy Act of 1954, as amended; the Energy Reorganization
Act of 1974, as amended; and 5 U.S.C. 552 and 553, the NRC is proposing
to adopt the following amendments to 10 CFR parts 50 and 52.
[[Page 70644]]
PART 50--DOMESTIC LICENSING OF PRODUCTION AND UTILIZATION
FACILITIES
0
1. The authority citation for 10 CFR part 50 continues to read as
follows:
Authority: Atomic Energy Act of 1954, secs. 11, 101, 102, 103,
104, 105, 108, 122, 147, 149, 161, 181, 182, 183, 184, 185, 186,
187, 189, 223, 234 (42 U.S.C. 2014, 2131, 2132, 2133, 2134, 2135,
2138, 2152, 2167, 2169, 2201, 2231, 2232, 2233, 2234, 2235, 2236,
2237, 2239, 2273, 2282); Energy Reorganization Act of 1974, secs.
201, 202, 206, 211 (42 U.S.C. 5841, 5842, 5846, 5851); Nuclear Waste
Policy Act of 1982, sec. 306 (42 U.S.C. 10226); National
Environmental Policy Act of 1969 (42 U.S.C. 4332); 44 U.S.C. 3504
note; Sec. 109, Pub. L. 96-295, 94 Stat. 783.
0
2. In Sec. 50.8, paragraph (b) is revised to read as follows:
Sec. 50.8 Information collection requirements: OMB approval.
* * * * *
(b) The approved information collection requirements contained in
this part appear in Sec. Sec. 50.30, 50.33, 50.34, 50.34a, 50.35,
50.36, 50.36a, 50.36b, 50.44, 50.46, 50.47, 50.48, 50.49, 50.54, 50.55,
50.55a, 50.59, 50.60, 50.61, 50.61a, 50.62, 50.63, 50.64, 50.65, 50.66,
50.68, 50.69, 50.70, 50.71, 50.72, 50.74, 50.75, 50.80, 50.82, 50.90,
50.91, 50.120, 50.150, 50.155, and appendices A, B, E, G, H, I, J, K,
M, N, O, Q, R, and S to this part.
* * * * *
0
3. In Sec. 50.34, paragraphs (a)(13), (b)(12), and (i) are revised to
read as follows:
Sec. 50.34 Contents of applications; technical information.
(a) * * *
(13) On or after July 13, 2009, power reactor applicants who apply
for a construction permit shall submit the information required by 10
CFR 50.150(b) as a part of their preliminary safety analysis report.
(b) * * *
(12) On or after July 13, 2009, power reactor applicants who apply
for an operating license which is subject to 10 CFR 50.150(a) shall
submit the information required by 10 CFR 50.150(b) as a part of their
final safety analysis report.
* * * * *
(i) Mitigation of beyond-design-basis events. Each application for
a power reactor operating license under this part must include the
applicant's plans for implementing the requirements of Sec. 50.155 and
10 CFR part 50, appendix E, section VII, including a schedule for
achieving full compliance with these requirements. The application must
also include a description of:
(1) The integrated response capability required by Sec. 50.155(b);
(2) The equipment upon which the strategies and guidelines required
by Sec. 50.155(b)(1) rely, including the planned locations of the
equipment and how the equipment and SSCs meet the design requirements
of Sec. 50.155(c); and
(3) The strategies and guidelines required by Sec. 50.155(b)(2).
0
4. In Sec. 50.54 remove paragraph (hh)(2), redesignate paragraph
(hh)(3) as (hh)(2) and revise it to read as follows:
Sec. 50.54 Conditions of licenses.
* * * * *
(hh) * * *
(2) This section does not apply to a licensee that has submitted
the certifications required under Sec. 50.82(a)(1) or Sec. 52.110(a)
of this chapter once the NRC has docketed those certifications.
* * * * *
0
5. Add Sec. 50.155 under the undesignated center heading Additional
Standards for Lisences, Certifications, and Regulatory Approvals to
read as follows:
Sec. 50.155 Mitigation of Beyond-Design-Basis Events.
(a) Applicability. (1) Each holder of an operating license for a
nuclear power reactor under this part and each holder of a combined
license under part 52 of this chapter after the Commission has made the
finding under Sec. 52.103(g), before the NRC's docketing of the
license holder's certifications described in Sec. 50.82(a)(1) or Sec.
52.110(a) of this chapter, shall comply with the requirements of this
section and section VII of appendix E to 10 CFR part 50.
(2) Each applicant for an operating license for a nuclear power
reactor under this part and each holder of a combined license under
part 52 of this chapter before the Commission has made the finding
under Sec. 52.103(g) shall comply with the requirements of this
section and section VII of appendix E to 10 CFR part 50 no later than
the date on which the Commission issues the operating license under
Sec. 50.57 or makes the finding under Sec. 52.103(g), respectively.
(3) When the NRC has docketed the certifications described in Sec.
50.82(a)(1) or Sec. 52.110(a) of this chapter, submitted by a licensee
subject to the requirements of this section and section VII of appendix
E to 10 CFR part 50, then that licensee shall comply with the
requirements of Sec. 50.155(b) through (e) associated with maintaining
or restoring secondary containment capabilities, if applicable, and
spent fuel pool cooling capabilities, but need not comply with Sec.
50.155(c)(4) and section VII of appendix E to 10 CFR part 50, for the
unit described in the Sec. 50.82(a)(1) or Sec. 52.110(a)
certifications until the spent fuel pool(s) is empty of all irradiated
fuel.
(i) Holders of operating licenses or combined licenses for which
the NRC has docketed the certifications described in Sec. 50.82(a)(1)
or Sec. 52.110(a) of this chapter need not meet the requirements of
this section except for paragraph (b)(2) of this section once the decay
heat of the fuel in the spent fuel pool can be removed solely by
heating and boiling of water within the spent fuel pool and the boil-
off period provides sufficient time for the licensee to obtain off-site
resources to sustain the spent fuel pool cooling function indefinitely,
as demonstrated by an analysis performed and retained by the licensee.
(ii) Dominion Nuclear Connecticut, Inc. (Millstone Power Station
Unit 1) is not subject to the requirements of this section.
(b) Integrated response capability. Each applicant or licensee
shall develop, implement, and maintain an integrated response
capability that includes:
(1) Mitigation Strategies for Beyond-Design-Basis External Events.
Strategies and guidelines to mitigate beyond-design-basis external
events from natural phenomena that result in an extended loss of all ac
power concurrent with either a loss of normal access to the ultimate
heat sink or, for passive reactor designs, a loss of normal access to
the normal heat sink. These strategies and guidelines must be capable
of being implemented site-wide and must include:
(i) Maintaining or restoring core cooling, containment, and spent
fuel pool cooling capabilities; and
(ii) The acquisition and use of offsite assistance and resources to
support the functions required by paragraph (b)(1)(i) of this section
indefinitely, or until sufficient site functional capabilities can be
maintained without the need for the mitigation strategies.
(2) Extensive Damage Mitigation Guidelines (EDMGs). Strategies and
guidelines to maintain or restore core cooling, containment, and spent
fuel pool cooling capabilities under the circumstances associated with
loss of large areas of the plant due to explosions or fire, to include
strategies and guidelines in the following areas:
(i) Firefighting;
(ii) Operations to mitigate fuel damage; and
[[Page 70645]]
(iii) Actions to minimize radiological release.
(3) Integration of strategies and guidelines in paragraphs (b)(1)
and (2) of this section with the Emergency Operating Procedures (EOPs).
(4) Sufficient staffing to support implementation of the strategies
and guidelines in paragraphs (b)(1) and (2) of this section in
conjunction with the EOPs to respond to events.
(5) A supporting organizational structure with defined roles,
responsibilities, and authorities for directing and performing the
strategies and guidelines in paragraphs (b)(1) and (2) of this section.
(c) Equipment. (1) The capacity and capability of the equipment
relied on for the mitigation strategies required by paragraph (b)(1) of
this section must be sufficient to simultaneously maintain or restore
core cooling, containment, and spent fuel pool cooling capabilities for
all the power reactor units within the site boundary.
(2) The equipment relied on for the mitigation strategies required
by paragraph (b)(1) of this section must be reasonably protected from
the effects of natural phenomena that are equivalent to the design
basis of the facility.
(i) Each licensee that received the March 12, 2012, NRC letter
issued under Sec. 50.54(f) concerning reevaluations of seismic and
flooding hazard levels, shall provide reasonable protection against
that reevaluated seismic or flooding hazard(s) if it exceeds the design
basis of its facility.
(3) The equipment relied on for the mitigation strategies in
paragraph (b)(1) of this section must receive adequate maintenance such
that the equipment is capable of fulfilling its intended function.
(4) The equipment relied on for the mitigation strategies in
paragraph (b)(1) of this section must include reliable means to
remotely monitor wide-range spent fuel pool levels to support effective
prioritization of event mitigation and recovery actions.
(d) Training requirements. Each licensee shall provide for the
training and qualification of personnel that perform activities in
accordance with the strategies and guidelines identified in paragraphs
(b)(1) and (2) of this section. The training and qualification on these
activities must be developed using the systems approach to training as
defined in Sec. 55.4 of this chapter except for elements already
covered under other NRC regulations.
(e) Drills and Exercises. (1) An applicant for an operating license
issued under this part shall conduct an initial drill or exercise that
demonstrates the capability to transition to and use one or more of the
strategies and guidelines in paragraphs (b)(1) and (2) of this section
and use the communications equipment required in 10 CFR part 50,
appendix E, section VII, no more than 12 months before issuance of an
operating license for the unit described in the license application.
(2) A holder of a combined license issued under 10 CFR part 52
before the Commission has made the finding under Sec. 52.103(g), shall
conduct an initial drill or exercise that demonstrates the capability
to transition to and use one or more of the strategies and guidelines
in paragraphs (b)(1) and (2) of this section and use the communications
equipment required in 10 CFR part 50, appendix E, section VII, no more
than 12 months before the date specified for completion of the last
inspections, tests, and analyses in the inspections, tests, analyses,
and acceptance criteria (ITAAC) completion schedule required by Sec.
52.99(a) for the unit described in the combined license.
(3) Once the Commission issues an operating license to an entity
described in paragraph (e)(1) of this section or makes the finding
under Sec. 52.103(g) of this chapter for an entity described in
paragraph (e)(2) of this section, the licensee shall conduct subsequent
drills, exercises, or both that collectively demonstrate a capability
to use at least one of the strategies and guidelines in each of
paragraphs (b)(1) and (2) of this section in succeeding 8-year
intervals. The drills and exercises performed to demonstrate this
capability must include transitions from other procedures and
guidelines as applicable, and the use of communications equipment
required in 10 CFR part 50, appendix E, section VII. Each licensee
shall not exceed 8 years between any consecutive drills or exercises.
(4) A holder of an operating license issued under this part or a
combined license under 10 CFR part 52 for which the Commission has made
the finding specified in Sec. 52.103(g) as of [EFFECTIVE DATE OF THE
FINAL RULE], shall conduct an initial drill or exercise that
demonstrates the capability to transition to and use one or more of the
strategies and guidelines in paragraphs (b)(1) and (2) of this section
and use communications equipment required in 10 CFR part 50, appendix
E, section VII, by [DATE 4 YEARS AFTER EFFECTIVE DATE OF THE FINAL
RULE]. Following this initial drill or exercise, the licensee shall
conduct subsequent drills, exercises, or both that collectively
demonstrate a capability to use at least one of the strategies and
guidelines in each of paragraphs (b)(1) and (2) of this section in
succeeding 8-year intervals. The drills and exercises performed to
demonstrate this capability must include transitions from other
procedures and guidelines as applicable, and the use of communications
equipment required in 10 CFR part 50, appendix E, section VII. Each
licensee shall not exceed 8 years between any consecutive drills or
exercises.
(f) Change Control. (1) A licensee may make changes in the
implementation of the requirements in this section and 10 CFR part 50,
appendix E, section VII, without NRC approval, provided that before
implementing each such change, the licensee performs an evaluation
demonstrating that the provisions of this section and 10 CFR part 50,
appendix E, section VII, continue to be met.
(2) Documentation of all changes, including the evaluation required
by paragraph (f)(1) of this section, shall be maintained until the
requirements of this section and section VII of appendix E to 10 CFR
part 50 no longer apply.
(3) Changes in the implementation of requirements in this chapter
subject to change control processes other than paragraph (f) of this
section and resulting from changes in the implementation of the
requirements in this section and 10 CFR part 50, appendix E, section
VII, must be processed via their respective change control processes.
(g) Implementation. Unless otherwise specified in this section or
10 CFR part 50, appendix E, section VII:
(1) Each holder of an operating license under this part on
[EFFECTIVE DATE OF THE FINAL RULE] shall comply with all the provisions
of this section no later than 2 years following [EFFECTIVE DATE OF THE
FINAL RULE].
(2) Each holder of a combined license under 10 CFR part 52 for
which the Commission made the finding specified in Sec. 52.103(g) as
of [EFFECTIVE DATE OF THE FINAL RULE] shall comply with all the
provisions of this section no later than 2 years following [EFFECTIVE
DATE OF THE FINAL RULE].
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6. In appendix E to part 50 revise paragraphs I.2, IV.B.1, IV.E.2,
IV.F.2.j, and VI.3.c and add section VII to read as follows:
Appendix E to Part 50--Emergency Planning and Preparedness for
Production and Utilization Facilities
* * * * *
I. * * *
2. This appendix establishes minimum requirements for emergency
plans for use in attaining an acceptable state of emergency
[[Page 70646]]
preparedness. These plans shall be described generally in the
preliminary safety analysis report for a construction permit and
submitted as part of the final safety analysis report for an
operating license. These plans, or major features thereof, may be
submitted as part of the site safety analysis report for an early
site permit. Section VII of this appendix also provides for
``Communications and Staffing Requirements for the Mitigation of
Beyond-Design-Basis Events'' that do not need to be contained within
a licensee's emergency plan.
* * * * *
IV. * * *
B. * * *
1. The means to be used for determining the magnitude of, and
for continually assessing the impact of, the release of radioactive
materials, including from all reactor core and spent fuel pool
sources, shall be described, including emergency action levels that
are to be used as criteria for determining the need for notification
and participation of local and State agencies, the Commission, and
other Federal agencies, and the emergency action levels that are to
be used for determining when and what type of protective measures
should be considered within and outside the site boundary to protect
health and safety. The emergency action levels shall be based on in-
plant conditions and instrumentation in addition to onsite and
offsite monitoring. By June 20, 2012, for nuclear power reactor
licensees, these action levels must include hostile action that may
adversely affect the nuclear power plant. The initial emergency
action levels shall be discussed and agreed on by the applicant or
licensee and state and local governmental authorities, and approved
by the NRC. Thereafter, emergency action levels shall be reviewed
with the State and local governmental authorities on an annual
basis.
* * * * *
E. * * *
2. Equipment for determining the magnitude of and for
continuously assessing the impact of the release of radioactive
materials, including from all reactor core and spent fuel pool
sources, to the environment;
* * * * *
F. * * *
2. * * *
j. The exercises conducted under paragraph 2 of this section by
nuclear power reactor licensees must provide the opportunity for the
ERO to demonstrate proficiency in the key skills necessary to
implement the principal functional areas of emergency response
identified in paragraph 2.b of this section. Each exercise must
provide the opportunity for the ERO to demonstrate key skills
specific to emergency response duties in the control room, TSC, OSC,
EOF, and joint information center. Additionally, in each eight
calendar year exercise cycle, nuclear power reactor licensees shall
vary the content of scenarios during exercises conducted under
paragraph 2 of this section to provide the opportunity for the ERO
to demonstrate proficiency in the key skills necessary to respond to
the following scenario elements: hostile action directed at the
plant site, no radiological release or an unplanned minimal
radiological release that does not require public protective
actions, an initial classification of or rapid escalation to a Site
Area Emergency or General Emergency, and integration of offsite
resources with onsite response. The licensee shall maintain a record
of exercises conducted during each eight year exercise cycle that
documents the content of scenarios used to comply with the
requirements of this paragraph. Each licensee shall conduct a
hostile action exercise for each of its sites no later than December
31, 2015. The first 8-year exercise cycle for a site will begin in
the calendar year in which the first hostile action exercise is
conducted. For a site licensed under 10 CFR part 52, the first 8-
year exercise cycle begins in the calendar year of the initial
exercise required by section IV.F.2.a of this appendix.
* * * * *
VI. * * *
3. * * *
c. In the event of a failure of NRC-supplied equipment, a
replacement will be furnished by the NRC for licensee installation.
* * * * *
VII. Communications and Staffing Requirements for the Mitigation of
Beyond Design Basis Events
All changes associated with implementation of the requirements
in this section are subject to Sec. 50.155(f). The change control
provisions of Sec. 50.54(q) do not apply to proposed changes
associated with implementation of the requirements in this section,
unless the requirements in this section are implemented within the
licensee's emergency plan.
1. Each nuclear power reactor applicant or licensee shall
perform a detailed analysis demonstrating that sufficient staff is
available to implement the guidelines and strategies to respond to a
beyond design basis external event resulting in impeded access to
the nuclear power plant, an extended loss of ac power sources
concurrent with either a loss of normal access to the ultimate heat
sink or, for passive reactor designs, a loss of normal access to the
normal heat sink, and affecting all units on-site.
a. An applicant for a power reactor operating license under this
part shall perform this analysis and submit it to the NRC under
Sec. 50.4 at least 2 years before the issuance of the first
operating license for full power (one authorizing operation above 5
percent of rated thermal power).
b. A holder of a combined license issued under 10 CFR part 52
before the Commission has made the finding under Sec. 52.103(g) of
this chapter shall perform this analysis and submit it to the NRC
under Sec. 52.3 of this chapter at least 2 years before the date
specified for completion of the last inspections, tests, and
analyses in the inspections, tests, analyses, and acceptance
criteria (ITAAC) completion schedule required by Sec. 52.99(a) of
this chapter for the plant.
c. Each holder of a power reactor operating license or combined
license for which the Commission has made the finding specified in
Sec. 52.103(g) of this chapter as of [EFFECTIVE DATE OF THE FINAL
RULE], before the NRC's docketing of the license holder's
certifications described in Sec. 50.82(a)(1) or Sec. 52.110(a) of
this chapter, shall perform this analysis and submit it to the NRC
under Sec. 50.4 no later than [DATE 365 DAYS AFTER EFFECTIVE DATE
OF THE FINAL RULE].
2. Each nuclear power reactor applicant or licensee shall make
and describe adequate provisions for at least one onsite and one
offsite communications system capable of remaining functional during
an extended loss of alternating current power including the effects
of the loss of the local communications infrastructure.
a. An applicant for a power reactor operating license under this
part shall make these provisions no later than the issuance of the
first operating license for full power (one authorizing operation
above 5 percent of rated thermal power).
b. A holder of a combined license issued under 10 CFR part 52
before the Commission has made the finding under Sec. 52.103(g) of
this chapter shall make these provisions no later than the date
specified for completion of the last inspections, tests, and
analyses in the ITAAC completion schedule required by Sec. 52.99(a)
of this chapter for the plant.
c. Each holder of a power reactor operating license under this
part or a combined license issued under 10 CFR part 52 for which the
Commission has made the finding specified in Sec. 52.103(g) of this
chapter as of [EFFECTIVE DATE OF THE FINAL RULE], before the NRC's
docketing of the license holder's certifications described in Sec.
50.82(a)(1) or Sec. 52.110(a) of this chapter, shall make these
provisions no later than [DATE 365 DAYS AFTER EFFECTIVE DATE OF THE
FINAL RULE].
PART 52--LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER
PLANTS
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7. The authority citation for part 52 continues to read as follows:
Authority: Atomic Energy Act of 1954, secs. 103, 104, 147, 149,
161, 181, 182, 183, 185, 186, 189, 223, 234 (42 U.S.C. 2133, 2134,
2167, 2169, 2201, 2231, 2232, 2233, 2235, 2236, 2239, 2273, 2282);
Energy Reorganization Act of 1974, secs. 201, 202, 206, 211 (42
U.S.C. 5841, 5842, 5846, 5851); 44 U.S.C. 3504 note.
[[Page 70647]]
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8. In Sec. 52.80, revise paragraph (d) to read as follows:
Sec. 52.80 Contents of applications; additional technical
information.
* * * * *
(d) The applicant's plans for implementing the requirements of
Sec. 50.155 of this chapter and 10 CFR part 50, appendix E, section
VII, including a schedule for achieving full compliance with these
requirements, and a description of:
(1) The integrated response capability required by Sec. 50.155(b)
of this chapter;
(2) The equipment upon which the strategies and guidelines required
by Sec. 50.155(b)(1) of this chapter rely, including the planned
locations of the equipment and how the equipment and SSCs meet the
design requirements of Sec. 50.155(c) of this chapter; and
(3) The strategies and guidelines required by Sec. 50.155(b)(2) of
this chapter.
Dated at Rockville, Maryland, this 2nd day of November, 2015.
For the Nuclear Regulatory Commission.
Annette L. Vietti-Cook,
Secretary of the Commission.
[FR Doc. 2015-28589 Filed 11-12-15; 8:45 am]
BILLING CODE 7590-01-P