Regulatory Improvements for Decommissioning Power Reactors, 72358-72373 [2015-29536]
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72358
Proposed Rules
Federal Register
Vol. 80, No. 223
Thursday, November 19, 2015
This section of the FEDERAL REGISTER
contains notices to the public of the proposed
issuance of rules and regulations. The
purpose of these notices is to give interested
persons an opportunity to participate in the
rule making prior to the adoption of the final
rules.
NUCLEAR REGULATORY
COMMISSION
10 CFR Parts 26, 50, 52, 73, and 140
[NRC–2015–0070]
RIN 3150–AJ59
Regulatory Improvements for
Decommissioning Power Reactors
Nuclear Regulatory
Commission.
ACTION: Advance notice of proposed
rulemaking; request for comment.
AGENCY:
The U.S. Nuclear Regulatory
Commission (NRC) is issuing this
advance notice of proposed rulemaking
(ANPR) to obtain input from
stakeholders on the development of a
draft regulatory basis. The draft
regulatory basis would support potential
changes to the NRC’s regulations for the
decommissioning of nuclear power
reactors. The NRC’s goals in amending
these regulations would be to provide
an efficient decommissioning process,
reduce the need for exemptions from
existing regulations, and support the
principles of good regulation, including
openness, clarity, and reliability. The
NRC is soliciting public comments on
the contemplated action and invites
stakeholders and interested persons to
participate. The NRC plans to hold a
public meeting to promote full
understanding of the questions
contained in this ANPR and facilitate
public comment.
DATES: Submit comments by January 4,
2016. Comments received after this date
will be considered if it is practical to do
so, but the NRC is able to ensure
consideration only for comments
received on or before this date.
ADDRESSES: You may submit comments
by any of the following methods (unless
this document describes a different
method for submitting comments on a
specific subject):
• Federal rulemaking Web site: Go to
https://www.regulations.gov and search
for Docket ID NRC–2015–0070. Address
questions about NRC dockets to Carol
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SUMMARY:
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Gallagher; telephone: 301–415–3463;
email: Carol.Gallagher@nrc.gov. For
technical questions contact the
individual 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.
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:
Jason B. Carneal, Office of Nuclear
Reactor Regulation, U.S. Nuclear
Regulatory Commission, Washington,
DC 20555–0001; telephone: 301–415–
1451; email: Jason.Carneal@nrc.gov.
SUPPLEMENTARY INFORMATION:
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–2015–0070.
• 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. The
ADAMS accession number for each
document referenced (if it is available in
ADAMS) is provided the first time that
it is mentioned in the SUPPLEMENTARY
INFORMATION section. For the
convenience of the reader, instructions
about obtaining materials referenced in
this document are provided in Section
IX, ‘‘Availability of Documents,’’ of this
document.
• 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.
Table of Contents
Please include Docket ID NRC–2015–
0070 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 posts all comment
submissions at https://
www.regulations.gov as well as entering
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
I. Obtaining Information and Submitting
Comments
II. Background
A. Regulatory Actions Related to
Decommissioning Power Reactors
B. Licensing Actions Related to
Decommissioning Power Reactors
III. Discussion
IV. Regulatory Objectives
A. Applicability to NRC Licenses and
Approvals
B. Interim Regulatory Actions
V. Specific Considerations
VI. Public Meeting
VII. Cumulative Effects of Regulation
VIII. Plain Writing
IX. Availability of Documents
X. Rulemaking Process
I. Obtaining Information and
Submitting Comments
A. Obtaining Information
Please refer to Docket ID NRC–2015–
0070 when contacting the NRC about
the availability of information for this
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B. Submitting Comments
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entering the comment submissions into
ADAMS.
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II. Background
A. Regulatory Actions Related to
Decommissioning Power Reactors
Significant regulations for the
decommissioning of nuclear power
reactors were not included in NRC rules
promulgated before 1988. The NRC
published a final rule in the Federal
Register on June 27, 1988 (53 FR 24018),
establishing decommissioning
requirements for various types of
licensees. By the early 1990s, the NRC
recognized a need for more changes to
the power reactor decommissioning
regulations and published a proposed
rule to amend its regulations for reactor
decommissioning in 1995 (60 FR 37374;
July 20, 1995). In 1996, the NRC
amended its regulations for reactor
decommissioning to clarify ambiguities,
make generically applicable procedures
that had been used on a case-by-case
basis, and allow for greater public
participation in the decommissioning
process (61 FR 39278; July 29, 1996).
However, as an increasing number of
power reactor licensees began
decommissioning their reactors, it
became apparent in the late 1990s that
additional rulemaking was needed on
specific topics to improve the efficiency
and effectiveness of the
decommissioning process.
In a series of Commission papers
issued between 1997 and 2001, the NRC
staff provided options and
recommendations to the Commission to
address regulatory improvements
related to power reactor
decommissioning. In the Staff
Requirements Memorandum (SRM) to
SECY–99–168, ‘‘Improving
Decommissioning Regulations for
Nuclear Power Plants,’’ dated December
21, 1999 (ADAMS Accession No.
ML003752190), the Commission
directed the NRC staff to proceed with
a single, integrated, risk-informed
decommissioning rule, addressing the
areas of emergency preparedness (EP),
insurance, safeguards, staffing and
training, and backfit. The objective of
the rulemaking was to clarify and
remove certain regulations for
decommissioning power reactors based
on the reduction in radiological risk
compared to operating reactors. At an
operating reactor, the high temperature
and pressure of the reactor coolant
system, as well as the inventory of
relatively short-lived radionuclides,
contribute to both the risk and
consequences of an accident. With the
permanent cessation of reactor
operations and the permanent removal
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of the fuel from the reactor core, such
accidents are no longer possible. As a
result of the shutdown and removal of
fuel, the reactor, reactor coolant system,
and supporting systems no longer
operate and, therefore, have no function.
Hence, postulated accidents involving
failure or malfunction of the reactor,
reactor coolant system, or supporting
systems are no longer applicable.
During reactor decommissioning, the
principal radiological risks are
associated with the storage of spent fuel
onsite. Generally, a few months after the
reactor has been permanently shut
down, there are no possible design-basis
events that could result in a radiological
release exceeding the limits established
by the U.S. Environmental Protection
Agency’s (EPA) early- phase Protective
Action Guidelines of 1 roentgen
equivalent man at the exclusion area
boundary. The only accident that might
lead to a significant radiological release
at a decommissioning reactor is a
zirconium fire. The zirconium fire
scenario is a postulated, but highly
unlikely, beyond-design-basis accident
scenario that involves a major loss of
water inventory from the spent fuel pool
(SFP), resulting in a significant heat-up
of the spent fuel, and culminating in
substantial zirconium cladding
oxidation and fuel damage. The
analyses of spent fuel heat-up scenarios
that might result in a zirconium fire are
related to the decay heat of the
irradiated fuel stored in the SFP.
Therefore, the probability of a
zirconium fire scenario continues to
decrease as a function of the time that
the decommissioning reactor has been
permanently shut down.
On June 28, 2000, the NRC staff
submitted SECY–00–0145, ‘‘Integrated
Rulemaking Plan for Nuclear Power
Plant Decommissioning’’ (ADAMS
Accession No. ML003721626) to the
Commission, proposing an integrated
decommissioning rulemaking plan. The
rulemaking plan was contingent on the
completion of a zirconium fire risk
study provided in NUREG–1738,
‘‘Technical Study of Spent Fuel Pool
Accident Risk at Decommissioning
Nuclear Power Plants’’ (ADAMS
Accession No. ML010430066), on the
accident risks at decommissioning
reactor SFPs. The NUREG was issued on
February 28, 2001.
Although NUREG–1738 could not
completely rule out the possibility of a
zirconium fire after a long spent fuel
decay times, it did demonstrate that
storage of spent fuel in a high-density
configuration in SFPs is safe, and that
the risk of accidental release of a
significant amount of radioactive
material to the environment is low. The
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study used simplified and sometimes
bounding assumptions and models to
characterize the likelihood and
consequences of beyond-design-basis
SFP accidents. Subsequent NRC
regulatory activities and studies
(described in more detail below) have
reaffirmed the safety and security of
spent fuel stored in pools and shown
that SFPs are effectively designed to
prevent accidents.
Because of uncertainty in the
NUREG–1738 conclusions about the risk
of SFP fires, the NRC staff faced a
challenge in developing a generic
decommissioning rule for EP, physical
security, and insurance. To seek
additional Commission direction, on
June 4, 2001, the NRC staff submitted to
the Commission SECY–01–0100,
‘‘Policy Issues Related to Safeguards,
Insurance, and Emergency Preparedness
Regulations at Decommissioning
Nuclear Power Plants Storing Fuel in
Spent Fuel Pools’’ (ADAMS Accession
No. ML011450420). However, based on
the reactor security implications of the
terrorist attacks of September 11, 2001
(9/11), and the results of NUREG–1738,
the NRC redirected its rulemaking
priorities to focus on programmatic
regulatory changes related to safeguards
and security. In a memorandum to the
Commission, ‘‘Status of Regulatory
Exemptions for Decommissioning
Plants,’’ dated August 16, 2002 (ADAMS
Accession No. ML030550706), the NRC
staff stated that no additional permanent
reactor shut downs were anticipated in
the foreseeable future, and that no
immediate need existed to proceed with
the decommissioning regulatory
improvement work that was planned.
Consequently, the NRC shifted
resources allocated for reactor
decommissioning rulemaking to other
activities. The NRC staff concluded that
if any additional reactors permanently
shut down after the rulemaking effort
was suspended, establishment of the
decommissioning regulatory framework
would continue to be addressed through
the license amendment and exemption
processes.
Between 1998 and 2013, no power
reactors permanently ceased operation.
Since 2013, five power reactors have
permanently shut down, defueled, and
are transitioning to decommissioning.
For these decommissioning reactor
licensees, the NRC has processed
various license amendments and
exemptions to establish a
decommissioning regulatory framework,
similar to the method used in the 1990s.
Following the 9/11 attack, the NRC
took several actions to further reduce
the possibility of a SFP fire. In the wake
of the attacks, the NRC issued orders
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that required licensees to implement
additional security measures, including
increased patrols, augmented security
forces and capabilities, and more
restrictive site-access controls to reduce
the likelihood of an accident, including
a SFP accident, resulting from a terrorist
initiated event. The NRC’s regulatory
actions after the terrorist attacks of 9/11
have significantly enhanced the safety
of SFPs. A comprehensive discussion of
post 9/11 activities, some of which
specifically address SFP safety and
security, is provided in the
memorandum to the Commission titled,
‘‘Documentation of Evolution of
Security Requirements at Commercial
Nuclear Power Plants with Respect to
Mitigation Measures for Large Fires and
Explosions,’’ dated February 4, 2010
(ADAMS Accession No. ML092990438).
In addition, the NRC amended
§ 50.55(hh)(2) of title 10 of the Code of
Federal Regulations (10 CFR) to require
licensees to implement other mitigating
measures to maintain or restore SFP
cooling capability in the event of loss of
large areas of the plant due to fires or
explosions, which further decreases the
probability of a SFP fire (74 FR 13926,
March 27, 2009). The Nuclear Energy
Institute (NEI) provided detailed
guidance in ‘‘NEI–06–12: B.5.b Phase 2
& 3 Submittal Guideline,’’ Revision 2,
dated December 2006 (ADAMS
Accession No. ML070090060). The NRC
endorsed this guidance on December 22,
2006 (non-publicly available), for
compliance with the § 50.54(hh)(2)
requirements. Under § 50.54(hh)(2),
power reactor licensees are required to
implement strategies such as those
provided in NEI–06–12. The NEI’s
guidance specifies that portable, powerindependent pumping capabilities must
be able to provide at least 500 gallons
per minute (gpm) of bulk water makeup
to the SFP, and at least 200 gpm of
water spray to the SFP. Recognizing that
the SFP is more susceptible to a release
when the spent fuel is in a nondispersed
configuration, the guidance also
specifies that the portable equipment is
to be capable of being deployed within
2 hours for a nondispersed
configuration. The NRC found the NEI
guidance to be an effective means for
mitigating the potential loss of large
areas due to fires or explosions.
Further, other organizations, such as
Sandia National Laboratory, have
confirmed the effectiveness of the
additional mitigation strategies to
maintain spent fuel cooling in the event
the pool is drained and its initial water
inventory is reduced or lost entirely.
The analyses conducted by the Sandia
National Laboratories (collectively, the
‘‘Sandia studies’’), are sensitive security
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related information and are not
available to the public. The Sandia
studies considered spent fuel loading
patterns and other aspects of a
pressurized-water reactor SFP and a
boiling water reactor SFP, including the
role that the circulation of air plays in
the cooling of spent fuel. The Sandia
studies indicated that there may be a
significant amount of time between the
initiating event (i.e., the event that
causes the SFP water level to drop) and
the spent fuel assemblies becoming
partially or completely uncovered. In
addition, the Sandia studies indicated
that for those hypothetical conditions
where air cooling may not be effective
in preventing a zirconium fire, there is
a significant amount of time between
the spent fuel becoming uncovered and
the possible onset of such a zirconium
fire, thereby providing a substantial
opportunity for both operator and
system event mitigation.
The Sandia studies, which account for
relevant heat transfer and fluid flow
mechanisms, also indicated that aircooling of spent fuel would be sufficient
to prevent SFP zirconium fires at a point
much earlier following fuel offload from
the reactor than previously considered
(e.g., in NUREG–1738). Thus, the fuel is
more easily cooled, and the likelihood
of an SFP fire is therefore reduced.
Additional mitigation strategies
implemented subsequent to 9/11
enhance spent fuel coolability, and the
potential to recover SFP water level and
cooling prior to a potential SFP
zirconium fire. The Sandia studies also
confirmed the effectiveness of
additional mitigation strategies to
maintain spent fuel cooling in the event
the pool is drained and its initial water
inventory is reduced or lost entirely.
Based on this more recent information,
and the implementation of additional
strategies following 9/11, the probability
of a SFP zirconium fire initiation is
expected to be less than reported in
NUREG–1738 and previous studies.
The NUREG–2161, ‘‘Consequence
Study of a Beyond-Design-Basis
Earthquake Affecting the Spent Fuel
Pool for a U.S. Mark I Boiling Water
Reactor,’’ dated September 2014
(ADAMS Accession No. ML14255A365),
evaluated the potential benefits of
strategies required in § 50.54(hh)(2). The
NUREG–2161 found that successful
implementation of mitigation strategies
significantly reduces the likelihood of a
release from the SFP in the event of a
loss of cooling water. Additionally,
NUREG–2161 found that the placement
of spent fuel in a dispersed
configuration in the SFP, such as the 1
x 4 pattern, would have a positive effect
in promoting natural circulation, which
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enhances air coolability and thereby
reduces the likelihood of a release from
a completely drained SFP. An
information notice titled, ‘‘Potential
Safety Enhancements to Spent Fuel Pool
Storage,’’ dated November 14, 2014
(ADAMS Accession No. ML14218A493),
was issued to all licensees informing
them of the insights from NUREG–2161.
This information notice describes the
benefits of storing spent fuel in more
favorable loading patterns, placing spent
fuel in dispersed patterns immediately
after core offload, and taking action to
improve mitigation strategies.
In addition, in response to the
Fukushima Dai-ichi accident, the NRC
is currently implementing regulatory
actions to further enhance reactor and
SFP safety. On March 12, 2012, the NRC
issued Order EA–12–051, ‘‘Issuance of
Order to Modify Licenses with Regard to
Reliable Spent Fuel Pool
Instrumentation,’’ (ADAMS Accession
No. ML12054A679), which requires that
licensees install 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. Although the primary
purpose of the order was to ensure that
operators were not distracted by
uncertainties related to SFP conditions
during the accident response, the
improved monitoring capabilities will
help in the diagnosis and response to
potential losses of SFP integrity. In
addition, on March 12, 2012, the NRC
issued Order EA–12–049, ‘‘Order
Modifying Licenses with Regard to
Requirements for Mitigation Strategies
for Beyond-Design-Basis External
Events,’’ (ADAMS Accession No.
ML12054A735), which requires
licensees to develop, implement, and
maintain guidance and strategies to
maintain or restore SFP cooling
capabilities, independent of alternating
current power, following a beyonddesign-basis external event. These
requirements ensure a more reliable and
robust mitigation capability is in place
to address degrading conditions in
SFPs.
The NRC believes that much of the
information in the SFP studies that have
been accomplished since NUREG–1738,
as discussed previously, will contribute
to the development of a regulatory basis
for the current power reactor
decommissioning rulemaking effort.
In the SRM to SECY–14–0118,
‘‘Request by Duke Energy Florida, Inc.,
for Exemptions from Certain Emergency
Planning Requirements,’’ dated
December 30, 2014 (ADAMS Accession
No. ML14364A111), the Commission
directed the NRC staff to proceed with
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rulemaking on reactor decommissioning
and set an objective of early 2019 for its
completion. The Commission also stated
that this rulemaking should address the
following:
• Issues discussed in SECY–00–0145
such as the graded approach to
emergency preparedness;
• Lessons learned from the plants that
have already (or are currently) going
through the decommissioning process;
• The advisability of requiring a
licensee’s post-shutdown
decommissioning activity report
(PSDAR) to be approved by the NRC;
• The appropriateness of maintaining
the three existing options (DECON,
SAFSTOR, and ENTOMB 1) for
decommissioning and the timeframes
associated with those options;
• The appropriate role of State and
local governments and
nongovernmental stakeholders in the
decommissioning process; and
• Any other issues deemed relevant
by the NRC staff.
In SECY–15–0014, ‘‘Anticipated
Schedule and Estimated Resources for a
Power Reactor Decommissioning
Rulemaking,’’ dated January 30, 2015
(ADAMS Accession No.
ML15082A089—redacted), the NRC staff
committed to proceed with a
rulemaking on reactor decommissioning
and provided an anticipated schedule
and estimate of the resources required
for the completion of a
decommissioning rulemaking. In SECY–
15–0127, ‘‘Schedule, Resource
Estimates, and Impacts for the Power
Reactor Decommissioning Rulemaking,’’
dated October 7, 2015, (non-publicly
available), the staff provided further
1 These options were first identified in the 1988
Generic Environmental Impact Statement and
defined as follows:
DECON: The equipment, structures, and portions
of the facility and site that contain radioactive
contaminants are promptly removed or
decontaminated to a level that permits termination
of the license shortly after cessation of operations.
SAFSTOR: The facility is placed in a safe, stable
condition and maintained in that state (safe storage)
until it is subsequently decontaminated and
dismantled to levels that permit license
termination. During SAFSTOR, a facility is left
intact, but the fuel has been removed from the
reactor vessel, and radioactive liquids have been
drained from systems and components and then
processed. Radioactive decay occurs during the
SAFSTOR period, thus reducing the quantity of
contaminated and radioactive material that must be
disposed of during decontamination and
dismantlement. The definition of SAFSTOR also
includes the decontamination and dismantlement
of the facility at the end of the storage period.
ENTOMB: Radioactive systems, structures, and
components are encased in a structurally long-lived
substance, such as concrete. The entombed
structure is appropriately maintained, and
continued surveillance is carried out until the
radioactivity decays to a level that permits
termination of the license.
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information to the Commission on
resource estimates and work that will be
delayed or deferred in fiscal year (FY)
2016 to enable the staff to make timely
progress consistent with Commission
direction to have a final rule submitted
to the Commission by the end of FY
2019.
B. Licensing Actions Related to
Decommissioning Power Reactors
In 2013, four power reactor units
permanently shut down without
significant advance notice or preplanning. These licensees and the
associated shut down reactors are: Duke
Energy Florida for Crystal River Unit 3
Nuclear Generation Plant; Dominion
Energy Kewaunee for Kewaunee Power
Station; and Southern California Edison
for San Onofre Nuclear Generating
Station, Units 2 and 3.
On December 29, 2014, Entergy
Nuclear Operations, Inc., shut down
Vermont Yankee Nuclear Power Station
(VY), and on January 12, 2015, the
licensee certified that VY had
permanently ceased operation and
removed fuel from the reactor vessel.
Furthermore, Exelon Generation
Company, the licensee for the Oyster
Creek Nuclear Generating Station, has
indicated that it is currently planning to
shut down that facility in 2019.
Both the decommissioning reactor
licensees and the NRC have expended
substantial resources processing
licensing actions for these power
reactors during their transition period to
a decommissioning status. Consistent
with the power reactors that
permanently shutdown in the 1990s, the
licensees that are currently transitioning
to decommissioning are establishing a
long-term regulatory framework based
on the low risk of an offsite radiological
release posed by a decommissioning
reactor. The licensees are seeking NRC
approval of exemptions and
amendments, to reduce requirements no
longer needed or no longer relevant for
permanently shutdown reactors.
The NRC has not identified any
significant risks to public health and
safety in the current regulatory
framework for decommissioning power
reactors. Consequently, the need for a
power reactor decommissioning
rulemaking is not based on any
identified safety-driven or securitydriven concerns. When compared to an
operating reactor, the risk of an offsite
radiological release is significantly
lower, and the types of possible
accidents are significantly fewer, at a
nuclear power reactor that has
permanently ceased operations and
removed fuel from the reactor vessel.
Although the need for a power reactor
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decommissioning rulemaking is not
based on safety concerns, the NRC
understands that the decommissioning
process can be improved and made
more efficient and predictable by
reducing its reliance on processing
licensing actions to achieve a long-term
regulatory framework for
decommissioning. Therefore, the
primary objective of the
decommissioning rulemaking is to
implement appropriate regulatory
changes that reduce the number of
licensing actions needed during
decommissioning.
The NRC anticipates that a power
reactor decommissioning rulemaking
will require substantial interactions
with all stakeholders. The information
developed in SECY–00–0145 provides a
historical perspective on the regulatory
challenges that the NRC is facing for
those licensees currently transitioning
to decommissioning. In addition, SECY–
00–0145 serves as a good starting point
for the current reactor decommissioning
rulemaking effort. However, as a result
of the changes to operating reactor
regulations in the areas of EP and
security after September 11, 2001, and
the earthquake and tsunami affecting
the Fukushima Dai-ichi nuclear power
station in Japan, there will likely be
many differences in the current
rulemaking effort as compared to the
rulemaking approach proposed in
SECY–00–0145. The proposed
decommissioning rulemaking effort
needs to be carefully scoped to ensure
an efficient and timely rulemaking
process. Incorporating too broad of a
regulatory scope into a single rule was
one of the challenges encountered
during the prior rulemaking effort.
Until a new decommissioning
rulemaking is complete, licensees that
are considering decommissioning can
use recently completed
decommissioning licensing actions as a
template for beginning
decommissioning activities. In addition,
the NRC can use these recent licensing
action evaluations as a precedent when
processing similar decommissioning
actions. The recently completed
licensing actions will also provide
supporting information for the
framework and context of a power
reactor decommissioning rulemaking.
The NRC has also completed interim
staff guidance on processing EP license
exemptions (NSIR/DPR–ISG–02,
‘‘Emergency Planning Exemption
Requests for Decommissioning Nuclear
Power Plants,’’ ADAMS Accession No.
ML13304B442), and has issued draft
interim staff guidance for physical
security license exemptions (NSIR/DSP–
ISG–03, ‘‘Review of Security
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Exemptions/License Amendment
Requests for Decommissioning Nuclear
Power Plants,’’ ADAMS Accession No.
ML14294A170).
The NRC intends to work closely with
all stakeholders to ensure that the
decommissioning rulemaking can be
achieved within a reasonable timeframe.
III. Discussion
The NRC has determined that
interaction with the public and
stakeholders will help to inform the
development of a regulatory basis for
the power reactor decommissioning
rulemaking. This ANPR is structured
around questions intended to solicit
information that: (1) Defines the scope
of stakeholder interest in a
decommissioning rulemaking, and (2)
supports the development of a complete
and adequate regulatory basis.
Commenters should feel free to provide
feedback on any aspect of power reactor
decommissioning that would support
this ANPR’s regulatory objective,
whether or not in response to a question
listed in this ANPR.
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IV. Regulatory Objectives
The NRC is developing a proposed
rule that would amend the current
requirements for power reactors
transitioning to decommissioning.
Experience has demonstrated that
licensees for decommissioning power
reactors seek several exemptions and
license amendments per site to establish
a long-term licensing basis for
decommissioning. By issuing a
decommissioning rule, the NRC would
be able to establish regulations that
would maintain safety and security at
sites transitioning to decommissioning
without the need to grant specific
exemptions or license amendments in
certain regulatory areas. Specifically,
the decommissioning rulemaking would
have the following goals: (1) Continue to
provide reasonable assurance of
adequate protection of the public health
and safety and common defense and
security at decommissioning power
reactor sites; (2) Ensure that the
requirements for decommissioning
power reactors are clear and
appropriate; (3) Codify those issues that
are found to be generically applicable to
all decommissioning power reactors and
have resulted in the need for similarlyworded exemptions or license
amendments; and (4) Identify, define,
and resolve additional areas of concern
related to the regulation of
decommissioning power reactors.
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A. Applicability to NRC Licenses and
Approvals
The NRC would apply these updated
requirements to power reactors
permanently shut down and defueled
and entered into decommissioning.
Accordingly, the NRC envisions that
the requirements would apply to the
following:
• Nuclear power plants currently
licensed under 10 CFR part 50;
• Nuclear power plants currently
being constructed under construction
permits issued under 10 CFR part 50, or
whose construction permits may be
reinstated;
• Future nuclear power plants whose
construction permits and operating
licenses are issued under 10 CFR part
50; and
• Current and future nuclear power
plants licensed under 10 CFR part 52.
B. Interim Regulatory Actions
The NRC recognizes that it will take
several years to issue a final rule. If
additional reactors begin
decommissioning before
implementation of the final rule, the
NRC anticipates that licensees will
continue to use existing regulatory
processes (for example, exemptions and
license amendments) to establish their
decommissioning regulatory framework.
V. Specific Considerations
The NRC is seeking stakeholders’
input on the following specific areas
related to power reactor
decommissioning regulations. The NRC
asks that commenters provide the bases
for their comments (i.e., the underlying
rationale for the position stated in the
comment) to enable the NRC to have a
complete understanding of commenters’
positions.
A. Questions Related to Emergency
Preparedness Requirements for
Decommissioning Power Reactor
Licensees
The EP requirements of 10 CFR 50.47,
‘‘Emergency Plans,’’ and appendix E,
‘‘Emergency Planning and Preparedness
for Production and Utilization
Facilities,’’ to 10 CFR part 50 continue
to apply to a nuclear power reactor after
permanent cessation of operations and
removal of fuel from the reactor vessel.
Currently, there are no explicit
regulatory provisions distinguishing EP
requirements for a power reactor that
has been shut down from those for an
operating power reactor. The NRC is
considering several changes to the EP
requirements in 10 CFR part 50,
‘‘Domestic Licensing of Production and
Utilization Facilities,’’ including
§ 50.47, ‘‘Emergency Plans;’’ appendix E
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to 10 CFR part 50, ‘‘Emergency Planning
and Preparedness for Production and
Utilization Facilities’’; § 50.54(s), (q),
and (t), and § 50.72(a) and (b). These
areas are discussed in more detail in
this section. The questions on EP have
been listed in this document using the
acronym ‘‘EP’’ and sequential numbers.
EP–1: The NRC has previously
approved exemptions from the
emergency planning regulations in
§ 50.47 and appendix E to 10 CFR part
50 at permanently shut down and
defueled power reactor sites based on
the determination that there are no
possible design-basis events at a
decommissioning licensee’s facility that
could result in an offsite radiological
release exceeding the limits established
by the EPA’s early-phase protective
action guidelines of 1 rem at the
exclusion area boundary. In addition,
the possibility of the spent fuel in the
SFP reaching the point of a beyonddesign-basis zirconium fire is highly
unlikely based on an analysis of the
amount of time before spent fuel could
reach the zirconium ignition
temperature during a SFP partial draindown event, assuming a reasonably
conservative adiabatic heat-up
calculation. A minimum of 10 hours is
the time that was used in previously
approved exemptions, which allows for
onsite mitigative actions to be taken by
the licensee or actions to be taken by
offsite authorities in accordance with
the comprehensive emergency
management plans (i.e., all hazards
plans). For licensees that have been
granted exemptions, the EP regulations,
as exempted, continue to require the
licensees to, among other things,
maintain an onsite emergency plan
addressing the classification of an
emergency, notification of emergencies
to licensee personnel and offsite
authorities, and coordination with
designated offsite government officials
following an event declaration so that,
if needed, offsite authorities may
implement protective actions using a
comprehensive emergency management
(all-hazard) approach to protect public
health and safety. The EP exemptions
relieve the licensee from the
requirement to maintain formal offsite
radiological emergency preparedness,
including the 10-mile emergency
planning zone.
a. What specific EP requirements in
§ 50.47 and appendix E to 10 CFR part
50 should be evaluated for modification,
including any EP requirements not
addressed in previously approved
exemption requests for licensees with
decommissioning reactors?
b. What existing NRC EP-related
guidance and other documents should
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be revised to address implementation of
changes to the EP requirements?
c. What new guidance would be
necessary to support implementation of
changes to the EP requirements?
EP–2: Rulemaking may involve a
tiered approach for modifying EP
requirements based on several factors,
including, but not limited to, the source
term after cessation of power operations,
removal of fuel from the reactor vessel,
elapsed time after permanent defueling,
and type of long-term onsite fuel
storage.
a. What tiers and associated EP
requirements would be appropriate to
consider for this approach?
b. What factors should be considered
in establishing each tier?
c. What type of basis could be
established to support each tier or
factor?
d. Should the NRC consider an
alternative to a tiered approach for
modifying EP requirements? If so,
provide a description of a proposed
alternative.
EP–3: Several aspects of offsite EP,
such as formal offsite radiological
emergency plans, emergency planning
zones, and alert and notification
systems, may not be necessary at a
decommissioning site when beyonddesign-basis events—which could result
in the need for offsite protective
actions—are few in number and highly
unlikely to occur.
a. Presently, licensees at
decommissioning sites must maintain
the following capabilities to initiate and
implement emergency response actions:
Classify and declare an emergency,
assess releases of radioactive materials,
notify licensee personnel and offsite
authorities, take mitigative actions, and
request offsite assistance if needed.
What other aspects of onsite EP and
response capabilities may be
appropriate for licensees at
decommissioning sites to maintain once
the requirements to maintain formal
offsite EP are discontinued?
b. To what extent would it be
appropriate for licensees at
decommissioning sites to arrange for
offsite assistance to supplement onsite
response capabilities? For example,
licensees at decommissioning sites
would maintain agreements with offsite
authorities for fire, medical, and law
enforcement support.
c. What corresponding changes to
§ 50.54(s)(2)(ii) and 50.54(s)(3) (about
U.S. Federal Emergency Management
Agency (FEMA)-identified offsite EP
deficiencies and FEMA offsite EP
findings, respectively) may be
appropriate when offsite radiological
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emergency plans would no longer be
required?
EP–4: Under § 50.54(q), nuclear power
reactor licensees are required to follow
and maintain the effectiveness of
emergency plans that meet the
standards in § 50.47 and the
requirements in appendix E to 10 CFR
part 50. These licensees must submit to
the NRC, for prior approval, changes
that would reduce the effectiveness of
their emergency plans.
a. Should § 50.54(q) be modified to
recognize that nuclear power reactor
licensees, once they certify under
§ 50.82, ‘‘Termination of License,’’ to
have permanently ceased operation and
permanently removed fuel from the
reactor vessel, would no longer be
required to meet all standards in § 50.47
and all requirements in appendix E? If
so, describe how.
b. Should nuclear power reactor
licensees, once they certify under
§ 50.82 to have permanently ceased
operation and permanently removed
fuel from the reactor vessel, be allowed
to make emergency plan changes based
on § 50.59, ‘‘Changes, Tests, and
Experiments,’’ impacting EP related
equipment directly associated with
power operations? If so, describe how
this might be addressed under
§ 50.54(q).
EP–5: Under § 50.54(t), nuclear power
reactor licensees are required to review
all EP program elements every 12
months. Some EP program elements
may not apply to permanently shut
down and defueled sites; for example,
the adequacy of interfaces with State
and local government officials when
offsite radiological emergency plans
may no longer be required. Should
§ 50.54(t) be clarified to distinguish
between EP program review
requirements for operating versus
permanently shut down and defueled
sites? If so, describe how.
EP–6: The Emergency Response Data
System (ERDS) transmits key operating
plant data to the NRC during an
emergency. Under § 50.72(a)(4), nuclear
power reactor licensees are required to
activate ERDS within 1 hour after
declaring an emergency at an ‘‘Alert’’ or
higher emergency classification level.
Much of the plant data, and associated
instrumentation for obtaining the data,
would no longer be available or needed
after a reactor is permanently shut down
and defueled. Section VI.2 to appendix
E of 10 CFR part 50 does not require a
nuclear power facility that is shut down
permanently or indefinitely to have
ERDS. At what point(s) in the
decommissioning process should ERDS
activation, ERDS equipment, and the
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instrumentation for obtaining ERDS
data, no longer be necessary?
EP–7: Under § 50.72(a)(1)(i), nuclear
power reactor licensees are required to
make an immediate notification to the
NRC for the declaration of any of the
emergency classes specified in the
licensee’s NRC-approved emergency
plan. Notification of the lowest level of
a declared emergency at a permanently
shut down and defueled reactor facility
may no longer need to be an immediate
notification (e.g., consider changing the
immediate notification category for a
Notification of Unusual Event
emergency declaration to a 1-hour
notification). What changes to
§ 50.72(a)(1)(i) should be considered for
decommissioning sites?
EP–8: Under § 50.72(b)(3)(xiii),
nuclear power reactor licensees are
required to make an 8-hour report of any
event that results in a major loss of
emergency assessment capability, offsite
response capability, or offsite
communications capability (e.g.,
significant portion of control room
indication, emergency notification
system, or offsite notification system).
Certain parts of this section may not
apply to a permanently shut down and
defueled site (e.g., a major loss of offsite
response capability once offsite
radiological emergency plans would no
longer be required). What changes to
§ 50.72(b)(3)(xiii) should be considered
for decommissioning sites?
B. Questions Related to the Physical
Security Requirements for
Decommissioning Power Reactor
Licensees
Currently, the physical protection
programs applied at decommissioning
reactors are managed through security
plan changes submitted to the NRC
under the provisions of §§ 50.90 and
50.54(p) and exemptions submitted to
the NRC for approval under § 73.5. All
physical protection program
requirements contained in the current
§ 73.55, appendix B to 10 CFR part 73,
‘‘General Criteria for Security
Personnel,’’ and appendix C to 10 CFR
part 73, ‘‘Licensee Safeguards
Contingency Plans,’’ are applicable to
operating reactors and decommissioning
reactors unless otherwise modified. The
questions on physical security
requirements (PSR) have been listed in
this document using the acronym ‘‘PSR’’
and sequential numbers.
PSR–1: Identify any specific security
requirements in § 73.55 and appendices
B and C to 10 CFR part 73 that should
be considered for change to reflect
differences between requirements for
operating reactors and permanently shut
down and defueled reactors.
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PSR–2: The physical security
requirements protecting the spent fuel
stored in the SFP from the design basis
threat (DBT) for radiological sabotage
are contained in 10 CFR part 73 and
would remain unchanged by this
rulemaking. However:
a. Are there any suggested changes to
the physical security requirements in 10
CFR part 73 or its appendices that
would be generically applicable to a
decommissioning power reactor while
spent fuel is stored in the SFP (e.g., are
there circumstances where the
minimum number of armed responders
could be reduced at a decommissioning
facility)? If so, describe them.
b. Which physical security
requirements in 10 CFR part 73 should
be generically applicable to spent fuel
stored in a dry cask independent spent
fuel storage installation?
c. Should the DBT for radiological
sabotage continue to apply to
decommissioning reactors? If it should
cease to apply in the decommissioning
process, when should it end?
PSR–3: Should the NRC develop and
publish additional security-related
regulatory guidance specific to
decommissioning reactor physical
protection requirements, or should the
NRC revise current regulatory guidance
documents? If so, describe them.
PSR–4: What clarifications should the
NRC make to target sets in § 73.55(f) that
addresses permanently shut down and
defueled reactors?
PSR–5: For a decommissioning power
reactor, are both the central alarm
station and a secondary alarm station
necessary? If not, why not? If both alarm
stations are considered necessary, could
the secondary alarm station be located
offsite?
PSR–6: Under § 73.54, power reactor
licensees are required to protect digital
computer and communication systems
and networks. These requirements
apply to licensees licensed to operate a
nuclear power plant as of November 23,
2009, including those that have
subsequently shut down and entered
into decommissioning.
a. Section 73.54 clearly states that the
requirements for protection of digital
computer and communications systems
and networks apply to power reactors
licensed under 10 CFR part 50 that were
licensed to operate as of November 23,
2009. However, § 73.54 does not
explicitly mention the applicability of
these requirements to power reactors
that are no longer authorized to operate
and are transitioning to
decommissioning. Are any changes
necessary to § 73.54 to explicitly state
that decommissioning power reactors
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are within the scope of § 73.54? If so,
describe them.
b. Should there be reduced cyber
security requirements in § 73.54 for
decommissioning power reactors based
on the reduced risk profile during
decommissioning? If so, what would be
the recommended changes?
PSR–7: Under § 73.55(p)(1)(i) and
(p)(1)(ii), power reactor licensees
suspend security measures during
certain emergency conditions or during
severe weather under the condition that
the suspension ‘‘must be approved as a
minimum by a licensed senior
operator.’’ Literal interpretation of these
regulations would require that only a
licensed senior operator could suspend
certain security measures at a
decommissioning reactor facility.
However, for permanently shut down
and defueled reactors, licensed
operators are no longer required, and
licensees typically eliminate these
positions shortly after shut down.
Decommissioning licensees create a new
certified fuel handler (CFH) position
(consistent with the definition in § 50.2)
as the senior non-licensed operator at
the plant. These positions cannot be
compared directly, so licensees
typically are unable to demonstrate that
the CFH position meets the ‘‘as a
minimum’’ criteria in § 73.55(p).
Because the regulation does not include
a provision that authorizes a CFH to
approve the suspension of security
measures for permanently shut down
and defueled reactors (similar to
§ 50.54(y) authorizing the CFH to
approve departures from license
conditions or technical specifications),
licensees have requested exemptions
from § 73.55(p)(1)(i) and (p)(1)(ii) to
allow CFHs to have this authority.
Based on this discussion, are there
any concerns about changing the
regulations to include the CFH as
having the authority to suspend certain
security measures during certain
emergency conditions or during severe
weather for permanently shut down and
defueled reactor facilities? If so,
describe them.
PSR–8: Regulations in § 73.55(j)(4)(ii)
require continuous communications
capability between security alarm
stations and the control room. The
intent of § 73.55(j)(4)(ii) is to ensure that
effective communication between the
alarm stations and operations staff with
shift command function responsibility
is maintained at all times. The control
room at an operating reactor contains
the controls and instrumentation
necessary to ensure safe operation of the
reactor and reactor support systems
during normal, off-normal, and accident
conditions and, therefore, is the location
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of the shift command function.
Following certification of permanent
shut down and removal of the fuel from
the reactor, operation of the reactor is no
longer permitted. Although the control
room at a permanently shut down and
defueled reactor provides a central
location from where the shift command
function can be conveniently performed
because of existing communication
equipment, office computer equipment,
and access to reference material, the
control room does not need to be the
location of the shift command function
since shift command functions are not
tied to this location for safety reasons,
and modern communication systems
permit continuous communication
capability from anywhere on the site.
The NRC is considering revising the
requirements of § 73.55(j)(4)(ii) for a
permanently shut down and defueled
reactor. The revised requirements would
be focused on maintaining a system of
continuous communications between
the shift manager/CFH and the security
alarm stations (rather than the control
room). Such a change would provide the
facility’s shift manager/CFH the
flexibility to leave the control room
without necessitating that other
operational staff remain in the control
room to receive communications from
the security alarm stations. Personal
communications systems would permit
the shift manager/CFH to perform
managerial and supervisory activities
throughout the plant while maintaining
the command function responsibility,
regardless of the supervisor’s location.
Based on the discussion above, are
there any concerns related to changing
the regulations in § 73.55(j)(4)(ii) to
allow another communications system
between the alarm stations and the shift
manager/CFH in lieu of the control
room at permanently shut down and
defueled reactors? If so, describe them.
C. Questions Related to Fitness for Duty
(FFD) Requirements for
Decommissioning Power Reactor
Licensees
The NRC’s regulations at § 26.3 lists
those licensees and other entities that
are required to comply with designated
subparts of 10 CFR part 26, ‘‘Fitness for
Duty Programs.’’ Part 26 does not apply
to power reactor licensees that have
certified under § 50.82 to have
permanently shut down and defueled.
The questions on fitness for duty (FFD)
have been listed in this document using
the acronym ‘‘FFD’’ and sequential
numbers.
FFD–1: Currently, holders of power
reactor licenses issued under 10 CFR
part 50 or 10 CFR part 52, ‘‘Licenses,
Certifications, and Approvals for
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Nuclear Power Plants,’’ must comply
with the physical protection
requirements described in § 73.55
during decommissioning. Under § 73.55,
each nuclear power reactor licensee
shall maintain and implement its
Commission-approved security plans as
long as the licensee has a 10 CFR part
50 or 52 license. Furthermore,
§ 73.55(b)(9) requires the licensee to
establish, maintain, and implement an
insider mitigation program (IMP) that
contains elements from various security
programs, including the FFD program
described in 10 CFR part 26. Each
power reactor licensee has committed
within its security plan to using NEI 03–
12, ‘‘Security Plan Template,’’ revision
7, as the framework for developing its
security plans to meet the requirements
of § 73.55. NEI 03–12, which was
endorsed by NRC Regulatory Guide (RG)
5.76, ‘‘Physical Protection Programs at
Nuclear Power Reactors (Safeguards
Information (SGI)),’’ letter dated
November 10, 2011, states that the IMP
is satisfied when the licensee
‘‘implements the elements of the IMP,
utilizing the guidance provided in RG
5.77, ‘Insider Mitigation Program.’ ’’ The
NRC is in the process of revising RG
5.77 in order to clarify those FFD
elements needed for the IMP.
a. Should the NRC pursue rulemaking
to describe what provisions of 10 CFR
part 26 apply to decommissioning
reactor licensees or use another method
of establishing clear, consistent and
enforceable requirements? Describe
other methods, as appropriate.
b. As an alternative to rulemaking,
should the drug and alcohol testing for
decommissioning reactors be described
in RG 5.77, with appropriate reference
to the applicable requirements in 10
CFR part 26? This option would be
contingent on an NEI commitment to
revise NEI 03–12 to include the most
recent revision to RG 5.77 (which would
include the applicable drug and alcohol
testing provisions) and an industry
commitment to update their security
plans with the revised NEI 03–12.
c. Describe what drug and alcohol
testing requirements in 10 CFR part 26
are not necessary to fulfill the IMP
requirements to assure trustworthiness
and reliability.
d. Should another regulatory
framework be used, such as a corporate
drug testing program modelled on the
U.S. Department of Health and Human
Services’ Mandatory Guidelines for
Federal Workplace Drug Testing or the
U.S. Department of Transportation’s
drug and alcohol testing provisions in
49 CFR part 40? If this option is
proposed, describe how (i) the
laboratory auditing, quality assurance,
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and reporting requirements would be
met by the proposal; (ii) licensees would
conduct alcohol testing; and (iii) the
performance objectives of 10 CFR
26.23(a), (b), (c), and (d) would be met.
FFD–2: On March 31, 2008, the NRC
published a final rule in the Federal
Register (73 FR 16966) adding subpart
I, ‘‘Managing Fatigue,’’ to 10 CFR part
26. The addition of subpart I in the
revised rule provides reasonable
assurance that the effects of fatigue and
degraded alertness on an individual’s
ability to safely and competently
perform his or her duties are managed
commensurate with maintaining public
health and safety. The fatigue
management provisions also reduce the
potential for worker fatigue (e.g., that
associated with security officers,
maintenance personnel, control room
operators, emergency response
personnel, etc.) to adversely affect the
common defense and security. The 2008
rule established clear and enforceable
requirements for operating nuclear
power plant licensees and other entities
for the management of worker fatigue.
Power reactor licensees that had
permanently shut down and defueled
were not considered within the scope of
that rulemaking effort. This is because
the scope of activities at a facility
undergoing decommissioning is much
less likely to create a public health and
safety concern due to the significantly
reduced risk of a radiological event.
a. Should any of the fatigue
management requirements of 10 CFR
part 26, subpart I, apply to a
permanently shut down and defueled
reactor? If so, which ones?
b. Based on the lower risk of an offsite
radiological release from a
decommissioning reactor, compared to
an operating reactor, should only
specific classes of workers, as identified
in § 26.4(a) through (c), be subject to
fatigue management requirements (e.g.,
security officers or certified fuel
handlers)? Please provide what classes
of workers should be subject to the
requirements and a justification for their
inclusion.
c. Should the fatigue management
requirements of 10 CFR part 26, subpart
I, continue to apply to the specific
classes of workers identified in response
to question b above, for a specified
period of time (e.g., until a specified
decay heat level is reached within the
SFP, or until all fuel is in dry storage)?
Please provide what period of time
workers would be subject to the
requirements and the justification for
the timing.
d. Should an alternate approach to
fatigue management be developed
commensurate with the plant’s lower
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risk profile? Please provide a discussion
of the alternate approach and how the
measures would adequately manage
fatigue for workers.
D. Questions Related to Training
Requirements of Certified Fuel Handlers
for Decommissioning Power Reactor
Licensees
Reactor operators are licensed under
10 CFR part 55 to manipulate the
controls of operating power reactors.
The regulations at § 55.4 define
‘‘controls’’ to mean, ‘‘when used with
respect to a nuclear reactor . . .
apparatus and mechanisms the
manipulation of which directly affects
the reactivity or power level of the
reactor.’’ ‘‘Controls’’ are not relevant at
decommissioning reactors because the
reactors are permanently shutdown and
defueled and no longer authorized to
load fuel into the reactor vessel.
Consequently, without fuel in the
reactor vessel, decommissioning
reactors are in a configuration in which
the reactivity or power level of the
reactor is no longer meaningful and
there are no conditions where the
manipulation of apparatus or
mechanisms can affect the reactivity or
power level of the reactor. Therefore,
licensed operators are not required at
decommissioning reactors. The NRC
regulations do not explicitly state the
staffing alternative for licensed
operators after a reactor has
permanently shutdown and defueled
under § 50.82(a)(1). When licensees
permanently shut down their reactors,
they must continue to meet minimum
staffing requirements in technical
specifications and regulatory required
programs (e.g., emergency response
organizations, fire brigade, security,
etc.). Given the reduced risk of a
radiological incident once the
certifications of permanent cessation of
operation and permanent removal of
fuel from the reactor vessel have been
submitted, licensees typically transition
their operating staff to a
decommissioning organization. This
transition includes replacing licensed
operators with CFHs as the on-shift
management representative responsible
for supervising and directing the
monitoring, storage, handling, and
cooling of irradiated nuclear fuel in a
manner consistent with ensuring the
health and safety of the public.
Regulations in § 50.2 define a CFH for
a nuclear power reactor as a nonlicensed operator who has qualified in
accordance with a fuel handler training
program approved by the Commission.
The transition to the use of CFHs from
licensed operators at decommissioning
reactors occurs following the NRC’s
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approval of a licensee’s CFH training
program and an amendment to the
administrative and organization section
of the licensee’s defueled technical
specifications.
However, the NRC regulations do not
contain criteria for an acceptable CFH
training program. Because of the
reduced risks and relative simplicity of
the systems needed for safe storage of
the spent fuel, the Commission stated in
the 1996 decommissioning final rule
that ‘‘[t]he degree of regulatory oversight
required for a nuclear power reactor
during its decommissioning stage is
considerably less than that required for
the facility during its operating stage’’
(61 FR 39278). In the proposed rule, the
Commission also provided insights as to
the responsibilities of the CFH position.
Specifically, the CFHs are needed at
decommissioning reactors to ensure that
emergency action decisions necessary to
protect the public health and safety are
made by an individual who has both the
requisite knowledge and plant
experience (60 FR 37374, 37379).
In previous evaluations of licensee
CFH training programs (ADAMS
Accession Nos. ML14104A046,
ML13268A165), the NRC has
determined that an acceptable CFH
training program should ensure that the
trained individual has requisite
knowledge and experience in spent fuel
handling and storage and reactor
decommissioning, and is capable of
evaluating plant conditions and
exercising prudent judgment for
emergency action decisions. In addition,
since the CFH is defined as a nonlicensed operator, the NRC staff has also
evaluated the CFH training program in
accordance with § 50.120, which
includes a requirement in § 50.120(b)(2)
that the training program must be
derived from a systems approach to
training as defined in § 55.4.
However, as previously noted, the
specific training requirements for the
CFH program are not in the regulations.
In addition, § 50.120 specifies the
training and qualification requirements
for non-licensed reactor personnel but
does not address the CFH staffing
position. Because the regulations are
silent on the training attributes of the
CFH, regulatory uncertainty regarding
the CFH training program exists. In
addition, because the NRC’s regulations
do not address the replacement of
licensed operators by CFHs, licensees
also have questions regarding the
transition from licensed operator
training programs to CFHs’ training
programs. The questions on CFH have
been listed in this document using the
acronym ‘‘CFH’’ and sequential
numbers.
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CFH–1: Based on the NRC’s
experience with the review of the CFH
training/retraining programs submitted
by licensees that have recently
permanently shutdown, the following
questions are focused on areas that may
need additional clarity. Specifically:
a. When should licensees that are
planning to enter decommissioning
submit requests for approval of CFH
training/retraining programs?
b. What training and qualifications
should be required for operations staff at
power reactors that decommission
earlier than expected and that do not
have an approved CFH training/
retraining program?
c. Should the NRC issue new
requirements that prohibit licensees
from surrendering operators’ licenses
before implementation of an approved
CFH training/retraining program, or
should other incentives or deterrents be
considered? If so, what factors must be
included?
d. Should the contents of a CFH
training/retraining program be
standardized throughout the industry? If
so, how should this be implemented?
e. Should a process be implemented
that requires decommissioning power
reactor licensees to independently
manage the specific content of their
CFH training/retraining program based
on the systems and processes actually
used at each particular plant instead of
standardization? If so, how should this
work?
f. Is there any existing or developing
document or program (from the Institute
of Nuclear Power Operations, NEI, NRC,
or other related sources) that provides
relevant guidance on the content and
format of a CFH training/retraining
program that could be made applicable
to CFH training?
g. Should the requirements for CFH
training programs be incorporated into
an overall decommissioning rule, or
addressed using other regulatory
vehicles such as associated NUREGs,
regulatory guides, standard review plan
chapters or sections, and inspection
procedures?
E. Questions Related to the Current
Regulatory Approach for
Decommissioning Power Reactor
Licensees
In the SRM to SECY–15–0014, the
Commission directed the staff to
determine the appropriateness of (1)
maintaining the three existing options
for decommissioning and the
timeframes associated with those
options, and (2) address the appropriate
role of State and local governments and
non-governmental stakeholders in the
decommissioning process. Based on the
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Commission’s direction, the NRC staff is
seeking additional information on the
need for any regulatory changes
concerning the use of decommissioning
options, the timeframe to complete
decommissioning, and the role of
external stakeholders in the
decommissioning process. The
questions on regulatory approach (REG)
have been listed in this document using
the acronym ‘‘REG’’ and sequential
numbers.
REG–1: The NRC has evaluated the
environmental impacts of three general
methods for decommissioning power
reactor facilities, DECON, SAFSTOR, or
ENTOMB, as described in Section II.A,
footnote 1 of this document. The choice
of the decommissioning method is left
entirely to the licensee, provided that
the decommissioning method can be
performed in accordance with NRC’s
regulations. The NRC would require the
licensee to re-evaluate its decision on
the method of the decommissioning
process that it chose if it (1) could not
be completed as described, (2) could not
be completed within 60 years of the
permanent cessation of plant operations,
(3) included activities that would
endanger the health and safety of the
public by being outside of the NRC’s
health and safety regulations, or (4)
would result in a significant impact to
the environment. The licensee’s choice
is communicated to the NRC and the
public in the PSDAR. To date, most
utilities have used DECON or SAFSTOR
to decommission reactors. Several sites
have performed some incremental
decontamination and dismantlement
during the storage period of SAFSTOR,
a combination of SAFSTOR and DECON
as personnel, money, or other factors
become available. No utilities have used
the ENTOMB option for a commercial
nuclear power reactor.
a. Should the current options for
decommissioning—DECON, SAFSTOR,
and ENTOMB—be explicitly addressed
and defined in the regulations instead of
solely in guidance documents, and how
so?
b. Should other options for
decommissioning be explored? If so,
what other technical or programmatic
options are reasonable and what type of
supporting documents would be most
effective for providing guidance on
these new options or requirements?
c. The NRC regulations state that
decommissioning must be completed
within 60 years of permanent cessation
of operations. A duration of 60 years
was chosen because it roughly
corresponds to 10 half-lives for cobalt60, one of the predominant isotopes
remaining in the facility. By 60 years,
the initial short-lived isotopes,
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including cobalt-60, will have decayed
to background levels. In addition, the
60-year period appears to be reasonable
from the standpoint of expecting
institutional controls to be maintained.
Completion of decommissioning beyond
60 years will be approved by the NRC
only when necessary to protect public
health and safety. Should the
requirements be changed so that the
timeframe for decommissioning is
something other than the current 60year limit? Would this change be
dependent on the method of
decommissioning chosen, site specific
characteristics, or some other
combination of factors? If so, please
describe.
REG–2: In support of
decommissioning planning for a
permanently shut down and defueled
power reactor, the licensee submits to
the NRC a PSDAR that: (1) Informs the
public of the licensee’s planned
decommissioning activities; (2) assists
in the scheduling of NRC resources
necessary for the appropriate oversight
activities; (3) ensures that the licensee
has considered the costs of the planned
decommissioning activities and has
funding for the decommissioning
process; and (4) ensures that the
environmental impacts of the planned
decommissioning activities are bounded
by those considered in existing
environmental impact statements. After
receiving a PSDAR, the NRC publishes
a notice of receipt, makes the PSDAR
available for public review and
comment, and holds a public meeting in
the vicinity of the plant to discuss the
licensee’s plans and address the public’s
comments. Although the NRC will
determine if the information is
consistent with the regulations, NRC
approval of the PSDAR is not required.
However, should the NRC determine
that the informational requirements of
the regulations are not met in the
PSDAR, the NRC will inform the
licensee, in writing, of the deficiencies
and require that they be addressed
before the licensee initiates any major
decommissioning activities. Any
decommissioning activities that could
preclude release of the site for possible
unrestricted use, impact a reasonable
assurance finding that adequate funds
will be available for decommissioning,
or potentially result in a significant
environmental impact not previously
reviewed, must receive prior NRC
approval. Specifically, the licensee is
required to submit a license amendment
request for NRC review and approval,
which provides an opportunity for
public comment and/or a public
hearing. Unless the NRC staff approves
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the license amendment request, the
licensee is not to conduct the requested
activity. Consistent with Commission
direction, the NRC staff is seeking
comment on the appropriate role for the
NRC in reviewing and approving the
licensee’s proposed decommissioning
strategy and associated planning
activities.
a. Is the content and level of detail
currently required for the licensee’s
PSDAR, adequate? If not, what should
be added or removed to enhance the
document?
b. Should the regulations be amended
to require NRC review and approval of
the PSDAR before allowing any ‘‘major
decommissioning activity,’’ as that term
is defined in § 50.2, to commence? What
value would this add to the
decommissioning process?
REG–3: The NRC’s regulations
currently offer the public opportunities
to review and provide comments on the
decommissioning process. Specifically,
under the NRC’s regulations in § 50.82,
the NRC is required to publish a notice
of the receipt of the licensee’s PSDAR,
make the PSDAR available for public
comment, schedule separate meetings in
the vicinity of the location of the
licensed facility to discuss the PSDAR
within 60 days of receipt, and publish
a notice of the meetings in the Federal
Register and another forum readily
accessible to individuals in the vicinity
of the site. For many years, the NRC has
strongly recommended that licensees
involved in decommissioning activities
form a community committee to obtain
local citizen views and concerns
regarding the decommissioning process
and spent fuel storage issues. It has been
the NRC’s view that those licensees who
actively engage the community maintain
better relations with the local citizens.
The NRC’s guidance related to creating
a site-specific community advisory
board can be found in NUREG–1757,
‘‘Consolidated Decommissioning
Guidance,’’ Appendix M, ‘‘Overview of
the Restricted Use and Alternate Criteria
Provisions of 10 CFR part 20, subpart
E,’’ Section M.6 (ADAMS Accession No.
ML063000243). Appendix M does not
require licensees to create a community
advisory board, but only provides
recommendations for methods of
soliciting public advice. Nonetheless,
Section M.6 contains useful guidance
and suggestions for effective public
involvement in the decommissioning
process that could be adopted by any
licensee.
a. Should the current role of the
States, members of the public, or other
stakeholders in the decommissioning
process be expanded or enhanced, and
how so?
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b. Should the current role of the
States, members of the public, or other
stakeholders in the decommissioning
process for non-radiological areas be
expanded or enhanced, and how so?
Currently, for all non-radiological
effluents created during the
decommissioning process, licensees are
required to comply with EPA or State
regulations related to liquid effluent
discharges to bodies of water.
c. For most decommissioning sites,
the State and local governments are
involved in an advisory capacity, often
as part of a Community Engagement
Panel or other organization aimed at
fostering communication and
information exchange between the
licensee and the public. Should the
NRC’s regulations mandate the
formation of these advisory panels?
F. Questions Related to the Application
of Backfitting Protection to
Decommissioning Power Reactor
Licensees
In the SRM to SECY–98–253,
‘‘Applicability of Plant-Specific Backfit
Requirements to Plants Undergoing
Decommissioning,’’ dated February 12,
1999 (ADAMS Accession No.
ML12311A689), the Commission
approved development of a Backfit Rule
for plants undergoing decommissioning.
The Commission directed the staff to
continue to apply the then-current
Backfit Rule to plants undergoing
decommissioning until the final rule
was issued. The Commission ordered
the development of a rulemaking plan,
which became SECY–00–0145. In
SECY–00–0145, the staff proposed
amendments to § 50.109 to clearly show
that the Backfit Rule applies during
decommissioning and to remove factors
that are not applicable to nuclear power
plants in decommissioning. As
explained in section II.A of this
document, that rulemaking never
occurred, but the Commission, in SRM–
SECY–14–0118, directed the staff to
proceed with a rulemaking that
addresses, among other things, the
issues discussed in SECY–00–0145.
The questions on backfitting
protection (BFP) have been listed in this
document using the acronym ‘‘BFP’’ and
sequential numbers.
BFP–1: The protections provided by
the backfitting and issue finality
provisions in 10 CFR parts 50 and 52,
respectively, can apply to a holder of a
nuclear power reactor license when the
reactor is in decommissioning.
Backfitting and issue finality during
decommissioning can be divided into
two areas:
a. When a licensee’s licensing basis
for operations continues to apply during
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decommissioning until: (1) The licensee
changes the licensing basis, (2) the
NRC’s regulations set forth generic
criteria delineating when changes can
be made to the licensing basis, or (3) the
NRC takes a facility-specific action that
changes the licensee’s licensing basis.
Why would backfitting protection apply
in this area?
b. When a licensee engages in an
activity during decommissioning for
which no prior NRC approval was
provided. The activity could be required
by an NRC regulation or new NRC
approval (through an order or licensing
action). Why would backfitting
protection apply in this area?
BFP–2: Should the NRC propose
amendments to § 50.109 consistent with
the preliminary amendments proposed
in SECY–00–0145 that would have
created a two-section Backfit Rule: one
section that would apply to nuclear
power plants undergoing
decommissioning and the other section
that would apply to operating reactors?
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G. Questions Related to
Decommissioning Trust Funds
The questions on decommissioning
trust fund (DTF) have been listed in this
document using the acronym ‘‘DTF’’
and sequential numbers.
DTF–1: The Commission’s regulation
at § 50.75 includes the reporting
requirements for providing reasonable
assurance that sufficient funds will be
available for the decommissioning
process. The regulation at § 50.82
contains, in part, requirements on the
use of decommissioning funds. Every 2
years each operating power reactor
licensee must report to the NRC the
status of the licensee’s decommissioning
funding to provide assurance to the NRC
that the licensee will have sufficient
financial resources to accomplish
radiological decommissioning. After
decommissioning has begun, licensees
must annually submit a financial
assurance status report to the NRC.
The NRC’s authority is limited to
assuring that licensees adequately
decommission their facilities with
respect to cleanup and removal of
radioactive material prior to license
termination. Activities that go beyond
the scope of decommissioning, as
defined in § 50.2, such as waste
generated during operations or
demolition costs for greenfield
restoration, are not appropriate costs for
inclusion in the decommissioning cost
estimate. The collection of funds for
spent fuel management is addressed in
§ 50.54(bb) where it indicates that
licensees need to have a plan, including
financing, for spent fuel management.
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The NRC has not precluded the
commingling of the funds in a single
trust fund account to address
radiological decommissioning, spent
fuel management, and site restoration,
as long as the licensee is able to identify
and account for these specific funds. In
the 1996 decommissioning rule, the
Commission indicated that the rule
‘‘does not prohibit licensees from
having separate subaccounts for other
activities in the decommissioning trust
fund if minimum amounts specified in
the rule are maintained for radiological
decommissioning.’’ Similarly, in the
2002 Decommissioning Trust Provisions
Rule, the Commission stated that it
‘‘appreciates the benefits that some
licensees may derive from their use of
a single trust fund for all of their
decommissioning costs, both
radiological and not; but, as stated
above, a licensee must be able to
identify the individual amounts
contained within its single trust.
Therefore, where a licensee has not
separately identified and accounted for
expenses related to non-radiological
decommissioning in its DTF, licensees
are required to request exemptions from
§ 50.82(a)(8)(i)(A) and either
§ 50.75(h)(1)(iv) or § 50.75(h)(2), to gain
access to monies in the
decommissioning trust fund for
purposes other than decommissioning
(e.g., spent fuel management). The NRC
has approved exemptions from the
requirements of §§ 50.82 and 50.75
allowing withdrawals to be made from
decommissioning trust funds for spent
fuel management in instances where the
level of funding needed to complete
decommissioning is not adversely
affected. In each instance, the NRC
found, pursuant to § 50.12, the
exemptions were authorized by law,
presented no undue risk to public
health and safety, and were consistent
with the common defense and security,
and found that the application of the
rules was unnecessary to achieve the
underlying purpose of the rules.
In some cases, a licensee will not
need an exemption. Those cases exist
when a licensee can clearly show that
(1) its decommissioning trust includes
State-required funds and (2) the amount
of radiological decommissioning funds
in the trust exceeds the amount of
money estimated to be needed for
radiological decommissioning in the
licensee’s site specific decommissioning
cost estimate (or if the licensee does not
have a site specific decommissioning
cost estimate yet, then the minimum
amount necessary to provide financial
assurance under § 50.75). If the licensee
meets these criteria, then reasonable
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assurance of adequate radiological
decommissioning funding still exists
after removal of the State-required
funds, and the licensee does not need an
exemption to use those State-required
funds.
The NRC issued Regulatory Issue
Summary (RIS) 2001–07, Revision 1,
‘‘10 CFR 50.75 Reporting and
Recordkeeping for Decommissioning
Planning,’’ on January 8, 2009 (ADAMS
Accession No. ML083440158), to clarify
the need for licensees to preserve the
distinction in their decommissioning
trust accounts between the radiological
decommissioning fund balance and
amounts accumulated for other
purposes, such as paying for spent fuel
management and site restoration, when
using the trust for commingled funds.
However, based on NRC experience
with the power reactors that have
recently and permanently shut down
and entered into decommissioning,
licensees continue to report funds they
have accumulated to address spent fuel
management and site restoration as part
of the amount of funds reported for
radiological decommissioning.
Should the regulations in §§ 50.75
and 50.82 be revised to clarify the
collection, reporting, and accounting of
commingled funds in the
decommissioning trust fund, that is in
excess of the amount required for
radiological decommissioning and that
has been designated for other purposes,
in order to preclude the need to obtain
exemptions for access to the excess
monies?
DTF–2: The regulation at
§ 50.82(a)(8)(i)(A) states that
decommissioning trust funds may only
be used by licensees if their
withdrawals ‘‘are for expenses for
legitimate decommissioning activities
consistent with the definition of
decommissioning in § 50.2.’’ In
accordance with § 50.2, decommission
means to remove a nuclear facility or
site safely from service and reduce
residual radioactivity to a level that
permits: (1) Release of the property for
unrestricted use and termination of the
license; or (2) release of the property
under restricted conditions and
termination of the NRC license. Thus,
‘‘legitimate decommissioning activities’’
include only those activities whose
expenses are related to removing a
nuclear facility or site safely from
service and reducing residual
radioactivity to a level that permits
license termination and release of the
property for restricted or unrestricted
use.
While the regulations are silent with
regards to what specific expenses are
related to legitimate decommissioning
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activities, the NRC’s guidance
documents identify some specific
expenses that may or may not be paid
from the decommissioning trust fund.
For example, Regulatory Guide (RG)
1.184, Revision 1, ‘‘Decommissioning of
Nuclear Power Reactors’’ (ADAMS
Accession No. ML13144A840), states
that the amount set aside for
radiological decommissioning as
required by § 50.75 ‘‘should not be used
for: (1) The maintenance and storage of
spent fuel in the spent fuel pool, (2) the
design, construction, or
decommissioning of spent fuel dry
storage facilities directly related to
permanent disposal, (3) other activities
not directly related to radiological
decontamination or dismantlement of
the facility or site.’’ Similarly, other
NRC guidance explain that the NRC’s
definition of decommissioning does not
include other activities related to
facility deactivation and site closure,
including operation of the spent fuel
storage pool, construction and/or
operation of an ISFSI, demolition of
decontaminated structures, and/or site
restoration activities after residual
radioactivity has been removed. The
NRC also has additional guidance that
states that removing uncontaminated
material, such as soil or a wall, to gain
access to contamination to be removed
would be a legitimate decommissioning
cost. Finally, guidance also exists that
provides examples of activities outside
the scope of decommissioning
including, ‘‘(1) the maintenance and
storage of spent fuel, (2) the design and/
or construction of a spent fuel dry
storage facility, (3) activities that are not
directly related to supporting long-term
storage of the facility, or (4) any other
activities not directly related to
radiological decontamination of the
site.’’
a. What changes should be considered
for §§ 50.2 and 50.82(a)(8) to clarify
what constitutes a legitimate
decommissioning activity?
b. Regulations in § 50.82(8)(ii) states
that 3 percent of the decommissioning
funds may be used during the initial
stages of decommissioning for
decommissioning planning activities.
What should be included or specifically
excluded in the definition of
‘‘decommissioning planning activities?’’
H. Questions Related to Offsite Liability
Protection Insurance Requirements for
Decommissioning Power Reactor
Licensees
The questions on offsite liability
protection insurance (LPI) have been
listed in this document using the
acronym ‘‘LPI’’ and sequential numbers.
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LPI–1: The Price Anderson Act of
1957 (PAA) requires that nuclear power
reactor licensees have insurance to
compensate the public for damages
arising from a nuclear incident,
including such expenses as those for
personal injury, property damage, or the
legal cost associated with lawsuits.
Regulations in 10 CFR part 140,
‘‘Amounts of Financial Protection for
Certain Reactors,’’ set forth the amounts
of insurance each power reactor licensee
must have. Specifically, § 140.11(a)(4)
requires a reactor licensee to maintain
$375 million in offsite liability
insurance coverage. In addition, the
primary insurance is supplemented by a
secondary insurance tier. In the event of
an accident causing offsite damages in
excess of $375 million, each licensee
would be assessed a prorated share of
the excess damages, up to $121.3
million per reactor, for a total of
approximately $13 billion.
Regulations in § 140.11(a)(4) do not
distinguish between a reactor that is
authorized to operate and a reactor that
has permanently shut down and
defueled. Most of the accident scenarios
postulated for operating power reactors
involve failures or malfunctions of
systems that could affect the fuel in the
reactor core, which in the most severe
postulated accidents, would involve the
release of large quantities of fission
products. With the permanent cessation
of reactor operations and the permanent
removal of the fuel from the reactor
core, such reactor accidents are no
longer possible with a decommissioning
reactor.
The PAA requires licensees of
facilities with a rated capacity of
100,000 electrical kilowatts or more to
have the primary and secondary
insurance coverage described above,
which the NRC establishes in 10 CFR
part 140. Typically, the NRC will issue
a decommissioning licensee a license
amendment to remove the rated
capacity of the reactor from the license.
This has the effect of removing the
reactor licensee from the category of
licensees that are required to maintain
the primary and secondary insurance
amounts under the PAA and 10 CFR
part 140.
Most permanently shut down and
defueled power reactor licensees have
requested exemptions from
§ 140.11(a)(4) to reduce the required
amount of primary offsite liability
insurance coverage from $375 million to
$100 million and to withdraw from the
secondary insurance pool. As noted
above, these licensees are no longer
within the category of licensees that are
legally required under the PAA to have
these amounts of offsite liability
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insurance. The technical criteria for
granting these exemptions are based on
the determination that there are no
possible design-basis events at a
licensee’s facility that could result in an
offsite radiological release exceeding the
limits established by the EPA’s earlyphase Protective Action Guidelines of 1
rem at the exclusion area boundary. In
addition, the exemptions are predicated
on the licensee demonstrating that the
heat generated by the spent fuel in the
SFP has decayed to the point where the
possibility of a zirconium fire is highly
unlikely. Specifically, if all coolant were
drained from the SFP as the result of a
highly unlikely beyond design-basis
accident, the fuel assemblies would
remain below a temperature of incipient
cladding oxidation for zirconium based
on air-cooling alone. For a postulated
situation where the cooling
configuration of a highly unlikely
beyond design basis accident results in
an unknown cooling configuration of
the spent fuel, analysis should
demonstrate that even with no cooling
of any kind (conduction, convection, or
radiative heat transfer), the spent fuel
stored in the SFP would not reach the
zirconium ignition temperature in fewer
than 10 hours starting from the time at
which the accident was initiated. The
NRC has considered 10 hours sufficient
time to take mitigative actions to cool
the spent fuel. Based on this discussion:
a. Should the NRC codify the current
conservative exemption criteria (i.e., 10
hours to take mitigative actions) that
have been used in granting
decommissioning reactor licensees
exemptions to § 140.11(a)(4)?
b. As an alternative to codifying the
current conservative exemption criteria
(i.e., 10 hours to take mitigative actions),
should the NRC codify a requirement to
allow decommissioning reactor
licensees to generate site specific
criteria (i.e., time period to take
mitigative actions) based upon a site
specific analysis?
c. The use of $100 million for primary
liability insurance level is based on
Commission policy and precedent from
the early 1990s. The amount established
was a qualitative value to bound the
claims from the Three Mile Island
accident. Should this number be
adjusted?
d. What other factors should be
considered in establishing an
appropriate primary insurance liability
level (based on the potential for damage
claims) for a decommissioning plant
once the risk of any kind of offsite
radiological release is highly unlikely?
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I. Questions Related to Onsite Damage
Protection Insurance Requirements for
Decommissioning Power Reactor
Licensees
The questions on onsite damage
protection insurance (ODI) have been
listed in this document using the
acronym ‘‘ODI’’ and sequential
numbers.
ODI–1: The requirements of
§ 50.54(w)(1) call for each power reactor
licensee to have insurance to provide
minimum coverage for each reactor site
of $1.06 billion or whatever amount of
insurance is generally available from
private sources, whichever is less. The
insurance would be used, in the event
of an accident at the licensee’s reactor,
to provide financial resources to
stabilize the reactor and decontaminate
the reactor site, if needed.
The requirements in § 50.54(w)(1) do
not distinguish between a reactor
authorized to operate and a reactor that
has permanently shut down and
defueled. With the permanent cessation
of reactor operations and the permanent
removal of the fuel from the reactor
core, operating reactor accidents are no
longer possible. Therefore, the need for
onsite insurance at a decommissioning
reactor to stabilize accident conditions
or decontaminate the site following an
accident, should be significantly lower
compared to the need for insurance at
an operating reactor.
Based on NRC policy and precedent,
permanently shut down and defueled
reactor licensees have requested
exemptions from § 50.54(w)(1). The
exemption granted to a permanently
shut down reactor licensee permits the
licensee to reduce the required level of
onsite property damage insurance from
the amount established in § 50.54(w)(1)
to $50 million. The NRC has previously
determined that $50 million bounds the
worst radioactive waste contamination
event (caused by a liquid radioactive
waste storage tank rupture) once the
heat generated by the spent fuel in the
SFP has decayed to the point where the
possibility of a zirconium fire in any
beyond design-basis accident is highly
unlikely, and in any case, there is
sufficient time to take mitigative
actions. The technical criteria used in
assessing the possibility of a zirconium
fire, as discussed in question LPI–1
above, is also used for exemptions from
§ 50.54(w)(1). Based on this discussion:
a. Should the NRC codify the current
exemption criteria that have been used
in granting decommissioning reactor
licensees exemptions from
§ 50.54(w)(1)? If so, describe why.
b. The use of $50 million insurance
level for bounding onsite radiological
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damages is based on a postulated liquid
radioactive waste storage tank rupture
using analyses from the early 1990s.
Should this number be adjusted? If so,
describe
c. Is the postulated rupture of a liquid
radioactive waste storage tank an
appropriate bounding postulated
accident at a decommissioning reactor
site once the possibility of a zirconium
fire has been determined to be highly
unlikely?
J. General Questions Related to
Decommissioning Power Reactor
Regulations
The general (GEN) questions related
to decommissioning power reactor
regulations have been listed in this
document using the acronym ‘‘GEN’’
and sequential numbers.
GEN–1: Section 50.51, ‘‘Continuation
of License,’’ states in paragraph (b)(1)
that all permanently shut down and
defueled reactor licensees shall
continue to take actions to maintain the
facility, and the storage and control and
maintenance of spent fuel, in a safe
condition beyond the license expiration
date until the Commission notifies the
licensee in writing that the license is
terminated. The NRC has recently
focused on the licensee’s maintenance
of long lived, passive structures and
components at decommissioning
reactors. The NRC expects that many
long-lived, passive structures and
components may generally not have
performance and condition
characteristics that can be readily
monitored, or could be considered
inherently reliable by licensees and do
not need to be monitored under
§ 50.65(a)(1). There may be few, if any,
actual maintenance activities (e.g.,
inspection or condition monitoring) that
a licensee conducts for such structures
and components. Treatment of longlived, passive structures and
components under the maintenance rule
is likely to involve minimal preventive
maintenance or monitoring to maintain
functionality of such structures and
components in the original licensing
period. The NRC is interested in the
need to provide reasonable assurance
that certain long-lived, passive
structures and components (e.g.,
neutron absorbing materials, SFP liner)
are maintained and monitored during
the decommissioning period while
spent fuel is in the SFP.
Based on the discussion above, what
regulatory changes should be
considered that address the performance
or condition of certain long-lived,
passive structures and components
needed to provide reasonable assurance
that they will remain capable of
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fulfilling their intended functions
during the decommissioning period?
GEN–2: Section 50.54(m) of the NRC’s
regulations for operating reactors
specifies the minimum licensed
operator staffing levels (e.g., minimum
staffing per shift for licensed operators
and senior operators) for power reactors
authorized to operate. The regulations
define the duties of licensed operators
as either the manipulation of controls or
supervising the manipulation of
controls that directly affect the reactor
reactivity or power level of the reactor.
A decommissioning plant is clearly not
operating and no manipulation of
controls that affect reactor reactivity or
power can occur at a permanently
defueled reactor. Therefore, the
requirements in § 50.54(m) concerning
licensed operator staffing levels for
operating reactors are not applicable to
a decommissioning plant. For a
decommissioning power reactor, the
senior on-shift management
representative is a certified fuel handler
who, as stated in § 50.2, is a nonlicensed operator that has qualified in
accordance with a fuel handler training
program approved by the Commission.
However, there are no regulatory
provisions similar to § 50.54(m)
concerning operator staffing levels for a
power reactor licensee once it has
certified that it is permanently shut
down and defueled under § 50.82(a)(1).
Because the decommissioning
regulations are silent regarding staffing
levels, licensees have sought
amendments in their defueled technical
specifications to specify minimum nonlicensed operator staffing. Based on
precedent used at most previous
permanently shut down reactors, and
considering the demonstrated safety
performance of reactor
decommissioning sites over many years,
the NRC has found that an operations
staff crew complement consisting of one
certified fuel handler and one noncertified operator is an acceptable
minimum staffing level.
Considering the discussion above,
should minimum operations shift
staffing at a permanently shutdown and
defueled reactor be codified by
regulation?
GEN–3: Related to the
decommissioning plant operator staffing
levels is the requirement for and the use
of a control room during
decommissioning. Section 50.54(m)
specifies the control room staffing
requirements for licensed operators at
an operating reactor with a fueled
reactor vessel. No such requirements
exist for the location of operations staff
at a permanently shutdown and
defueled reactor. The control room at an
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operating reactor contains the controls
and instrumentation necessary for
complete supervision and response
needed to ensure safe operation and
shutdown of the reactor and support
systems during normal, off-normal, and
accident conditions and, therefore, is
the location of the shift command
function. Following permanent
shutdown and removal of fuel from the
reactor, operation of the reactor is no
longer permitted and the control room
no longer performs all of the functions
that were required for an operating
reactor. There are no longer any
activities at a permanently shutdown
and defueled reactor that require a quick
decision and response by operations
staff in the control room. For most
decommissioning reactors, the NRC has
approved license amendments to the
technical specifications that require at
least one non-licensed operator to
remain in a control room. This technical
specification change is primarily based
on precedent. However, the NRC has
noted in the license amendment safety
evaluations that the primary functions
of the control room at a permanently
shutdown reactor are monitoring,
response, communications, and
coordination. Specifically, the control
room at a decommissioning reactor is
where many plant systems and
equipment parameters are monitored
(for operating status and conditions,
radiation levels, electrical anomalies, or
fire alarms for example). Control room
personnel assess plant conditions;
evaluate the magnitude and potential
consequences of abnormal conditions;
determine preventative, mitigating and
corrective actions; and perform
notifications. The control room provides
a central location from where the shift
command function can be conveniently
performed because of the availability of
existing monitoring and assessment
instrumentation, communication
systems and equipment, office computer
equipment, and ready access to
reference material. The control room
also provides a central location from
which emergency response activities are
coordinated. When activated, the
emergency response organization
reports to the control room.
During reactor decommissioning, the
control room may be subject to
extensive changes, which are evaluated
by the licensee for safety implications
under the § 50.59 process. There is
precedent among some previous
decommissioning reactor licensees to
design and construct a
decommissioning control room that is
independent of the original operating
control room. Most decommissioning
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reactors can probably demonstrate that
the command, communications, and
monitoring functions performed in the
control room could be readily
performed at an alternate onsite
location, based on the site-specific
needs of a licensee during its
decommissioning process.
Consequently, several decommissioning
licensees have questioned the meaning
of the control room as it relates to
decommissioning nuclear power plants.
Based on the discussion above, what
regulatory changes should be
considered for a permanently shutdown
and defueled reactor to prevent
ambiguities concerning the meaning of
the control room for decommissioning
reactors and should minimum staffing
levels be specified for the control room?
GEN–4: Are there any other changes
to 10 CFR Chapter I, ‘‘Nuclear
Regulatory Commission,’’ that could be
clarified or amended to improve the
efficiency and effectiveness of the
reactor decommissioning process?
GEN–5: The NRC is attempting to
gather information on the costs and
benefits of the changes in the regulatory
areas discussed in this document as
early as possible in the rulemaking
process. Given the topics discussed,
please provide estimated costs and
benefits of potential changes in these
areas from either the perspective of a
licensee or from the perspective of an
external stakeholder.
a. From your perspective, which areas
discussed are the most beneficial or
detrimental?
b. From your perspective, assuming
you believe changes are needed to the
NRC’s reactor decommissioning
regulatory infrastructure, what are the
factors that drive the need for changes
in these regulatory areas? If at all
possible, please provide specific
examples (e.g., expected savings,
expectations for efficiency, anticipated
effects on safety, etc.) about how these
changes will affect you.
c. Are there areas that are of particular
interest to you, and for what reason?
d. Please provide any suggested
changes that would further enhance
benefits or reduce risks that may not
have been addressed in this ANPR.
VI. Public Meeting
The NRC will conduct a public
meeting to discuss the contents of this
ANPR and to answer questions from the
public regarding the contents of this
ANPR. The NRC will publish a notice of
the location, time, and agenda of the
meeting on the NRC’s public meeting
Web site at least 10 calendar days before
the meeting. Stakeholders should
monitor the NRC’s public meeting Web
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72371
site for information about the public
meeting at: https://www.nrc.gov/publicinvolve/public-meetings/index.cfm. In
addition, the meeting information will
be posted on www.regulations.gov under
Docket ID NRC–2015–0070. For
instructions on how to receive alerts
when changes or additions occur in a
docket folder, see Section IX of this
document.
VII. Cumulative Effects of Regulation
The NRC has implemented a program
to address the possible Cumulative
Effects of Regulation (CER), in the
development of regulatory bases for
rulemakings. The CER describes the
challenges that licensees, or other
impacted entities (such as State
partners) may face while implementing
new regulatory positions, programs, and
requirements (e.g., rules, generic letters,
backfits, inspections). The CER is an
organizational effectiveness challenge
that results from a licensee or impacted
entity implementing a number of
complex positions, programs or
requirements within a limited
implementation period and with
available resources (which may include
limited available expertise to address a
specific issue). The NRC is specifically
requesting comment on the cumulative
effects that may result from this
potential rulemaking. In developing
comments on the development of the
regulatory basis for revisions to the
requirements for decommissioning
power reactor licensees relative to CER,
consider the following questions:
(1) In light of any current or projected
CER challenges, what should be a
reasonable effective date, compliance
date, or submittal date(s) from the time
the final rule is published to the actual
implementation of any new proposed
requirements including changes to
programs, procedures, or the facility?
(2) If current or projected CER
challenges exist, what should be done to
address this situation (e.g., if more time
is required to implement the new
requirements, what period of time
would be sufficient, and why such a
time frame is necessary)?
(3) Do other (NRC or other agency)
regulatory actions (e.g., orders, generic
communications, license amendment
requests, and inspection findings of a
generic nature) influence the
implementation of the potential
proposed requirements?
(4) Are there unintended
consequences? Does the potential
proposed action create conditions that
would be contrary to the potential
proposed action’s purpose and
objectives? If so, what are the
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consequences and how should they be
addressed?
(5) Please provide information on the
costs and benefits of the potential
proposed action. This information will
be used to support any regulatory
analysis performed by the NRC.
VIII. 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.
IX. 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./
Federal Register citation
Date
Document
May 10, 1993 ..................................
SECY–93–127, ‘‘Financial Protection Required of Licensees of Large
Nuclear Power Plants during Decommissioning’’.
Proposed Rule: Decommissioning of Nuclear Power Reactors ............
Final Rule: Decommissioning of Nuclear Power Reactors ...................
SECY–96–256, ‘‘Changes to Financial Protection Requirements for
Permanently Shutdown Nuclear Power Reactors, 10 CFR
50.54(w)(1) and 140.11’’.
SRM to SECY–98–075, ‘‘DSI–24 Implementation: Risk-Informed, Performance-Based Concepts Applied to Decommissioning’’.
SECY–98–258, ‘‘DSI–24 Implementation: Decommissioning Licensing
Actions and Priorities and Milestones for Addressing Rulemaking
and Guidance Development’’.
SRM to SECY–98–258 ..........................................................................
SECY–99–168, ‘‘Improving Decommissioning Regulations for Nuclear
Power Plants’’.
SRM to SECY–99–168 ..........................................................................
SECY–00–0145, ‘‘Integrated Rulemaking Plan for Nuclear Power
Plant Decommissioning’’.
SRM to SECY–00–0145 ........................................................................
NUREG–1738, ‘‘Technical Study of Spent Fuel Pool Accident Risk at
Decommissioning Nuclear Power Plants’’.
SECY–01–0100, ‘‘Policy Issues Related to Safeguards, Insurance,
and Emergency Preparedness Regulations at Decommissioning
Nuclear Power Plants Storing Fuel in Spent Fuel Pools’’.
Memorandum to the Commission: Status of Regulatory Exemptions
for Decommissioning Plants.
SECY–02–0169, ‘‘Annual Update Status of Decommissioning Program’’.
Memorandum to the Commission, ‘‘Documentation of Evolution of
Security Requirements at Commercial Nuclear Power Plants with
Respect to Mitigation Measures for Large Fires and Explosions’’.
NEI–06–12, ‘‘B.5.b. Phase 2 & 3 Submittal Guideline, Revision 2’’ .....
Response to December 14, 2006 request to endorse NEI 06–12,
‘‘B.5.b Phase 2& 3 Submittal Guideline’’.
The Attorney General of Commonwealth of Massachusetts, the Attorney General of California; Denial of Petitions for Rulemaking.
COMSECY–13–0030, ‘‘Staff Evaluation and Recommendation for
Japan Lessons-Learned Tier 3 Issue on Expedited Transfer of
Fuel’’.
NUREG–2161, ‘‘Consequence Study of a Beyond-Design-Basis
Earthquake Affecting the Spent Fuel Pool for a U.S. Mark I Boiling
Water Reactor’’.
IN–2014–14, ‘‘Potential Safety Enhancements to Spent Fuel Storage’’
SRM to SECY–14–0118, ‘‘Request by Duke Energy Florida, Inc., for
Exemptions from Certain Emergency Planning Requirements’’.
SECY–15–0014, ‘‘Anticipated Schedule and Estimated Resources for
a Power Reactor Decommissioning Rulemaking’’.
NSIR/DPR–ISG–02, ‘‘Emergency Planning Exemption Requests for
Decommissioning Nuclear Power Plants’’.
NSIR/DSP–ISG–03, ‘‘Review of Security Exemptions/License Amendment Requests for Decommissioning Nuclear Power Plants’’.
Letter Endorsing NEI 03–12, Revision 7 ...............................................
RG 5.77, ‘‘Insider Mitigation Program’’ ..................................................
Final Rule: ‘‘Fitness for Duty Programs’’ ...............................................
Order EA–12–051, ‘‘Issuance of Order to Modify Licenses with Regard to Reliable Spent Fuel Pool Instrumentation’’.
Order EA–12–049, ‘‘Issuance of Order to Modify Licenses with Regard to Requirements for Mitigation Strategies for Beyond-DesignBasis External Events’’.
July 20, 1995 ...................................
July 29, 1996 ...................................
December 17, 1996 ........................
June 30, 1998 .................................
November 4, 1998 ..........................
February 24, 1999 ...........................
June 30, 1999 .................................
December 21, 1999 ........................
June 28, 2000 .................................
September 27, 2000 .......................
February 2001 .................................
June 4, 2001 ...................................
August 16, 2002 ..............................
September 18, 2002 .......................
February 4, 2010 .............................
December 2006 ...............................
December 22, 2006 ........................
August 8, 2008 ................................
November 12, 2013 ........................
September 2014 ..............................
November 14, 2014 ........................
December 30, 2014 ........................
January 30, 2015 ............................
December 23, 2013 ........................
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November 25, 2014 ........................
November 10, 2011 ........................
March 2009 .....................................
March 31, 2008 ...............................
March 12, 2012 ...............................
March 12, 2012 ...............................
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ML12257A628.
60 FR 37374.
61 FR 39278.
ML15062A483.
ML003752383.
ML992870144.
ML003753861.
ML992800087.
ML003752190.
ML003721626.
ML003754381.
ML010430066.
ML011450420.
ML030550706.
ML022120432.
ML092990438.
ML070090060.
Non-publicly available.
73 FR 46204.
ML13329A918.
ML14255A365.
ML14218A493.
ML14364A111.
ML15082A089.
ML13304B442.
ML14294A170.
ML112800379.
Non-publicly available.
73 FR 16966.
ML12054A679.
ML12054A734.
19NOP1
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ADAMS Accession No./
Federal Register citation
Date
Document
October 7, 2015 ..............................
SECY–15–0127, ‘‘Schedule, Resource Estimates, and Impacts for
the Power Reactor Decommissioning Rulemaking’’.
The NRC may post additional
materials to the Federal rulemaking Web
site at www.regulations.gov, under
Docket NRC–2015–0070. 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–
2015Y–0070]; (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).
X. Rulemaking Process
The NRC does not intend to provide
detailed comment responses for
information provided in response to this
ANPR. The NRC will consider
comments on this ANPR in the rule
development process. If the NRC
develops a regulatory basis sufficient to
support a proposed rule, there will be
an opportunity for additional public
comment when the draft regulatory
basis and the proposed rule are
published. If supporting guidance is
developed for the proposed rule,
stakeholders will have an opportunity to
provide feedback on the guidance as
well. Alternatively, if the regulatory
basis does not provide sufficient
support for a proposed rule, the NRC
will publish a Federal Register notice
withdrawing this ANPR and
summarizing the public comments
received on this ANPR.
Dated at Rockville, Maryland, this 6th day
of November 2015.
For the U.S. Nuclear Regulatory
Commission.
Frederick D. Brown,
Acting Executive Director for Operations.
[FR Doc. 2015–29536 Filed 11–18–15; 8:45 am]
BILLING CODE 7590–01–P
DEPARTMENT OF ENERGY
10 CFR Parts 429 and 430
rmajette on DSK2TPTVN1PROD with PROPOSALS
[Docket No. EERE–2011–BT–CE–0077]
RIN 1904–AC68
Energy Conservation Program:
Enforcement of Regional Standards for
Central Air Conditioners
Office of Energy Efficiency and
Renewable Energy, Department of
Energy.
AGENCY:
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ACTION:
Notice of proposed rulemaking.
The U.S. Department of
Energy (DOE) is proposing requirements
related to the enforcement of regional
standards for central air conditioners, as
authorized by the Energy Policy and
Conservation Act (EPCA) of 1975.
DATES: DOE will accept comments, data,
and information regarding this notice of
proposed rulemaking (NOPR) no later
than January 4, 2016.
In compliance with the Paperwork
Reduction Act, DOE is also seeking
comment on a new information
collection. See the Paperwork Reduction
Act section under Procedural Issues and
Regulatory Review, section III.C. Please
submit all comments relating to
information collection requirements to
DOE no later than January 19, 2016.
Comments to OMB are most useful if
submitted within 45 days of
publication.
SUMMARY:
Any comments submitted
must identify the NOPR for Enforcement
of Regional Standards for Central Air
Conditioners and provide docket
number EERE–2011–BT–CE–0077 and/
or regulatory information number (RIN)
1904–AC68. Comments may be
submitted using any of the following
methods:
1. Federal eRulemaking Portal:
www.regulations.gov. Follow the
instructions for submitting comments.
2. Email: EnforcementFunCAC-2011CE-0077@EE.Doe.Gov Include the
docket number and/or RIN in the
subject line of the message.
3. Mail: Ms. Brenda Edwards, U.S.
Department of Energy, Building
Technologies Program, Mailstop EE–2J,
1000 Independence Avenue SW.,
Washington, DC 20585–0121. If
possible, please submit all items on a
CD. It is not necessary to include
printed copies.
4. Hand Delivery/Courier: Ms. Brenda
Edwards, U.S. Department of Energy,
Building Technologies Program, 950
L’Enfant Plaza SW., Suite 600,
Washington, DC 20024. Telephone:
(202) 586–2945. If possible, please
submit all items on a CD. It is not
necessary to include printed copies.
Docket: The docket, which includes
Federal Register notices, public meeting
attendee lists and transcripts,
comments, and other supporting
documents/materials, is available for
ADDRESSES:
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72373
Non-publicly available.
review at regulations.gov. All
documents in the docket are listed in
the regulations.gov index. However,
some documents listed in the index,
such as those containing information
that is exempt from public disclosure,
may not be publicly available. The
docket Web page can be found at:
https://www.regulations.gov/
#!docketDetail;D=EERE-2011-BT-CE0077.
For further information on how to
submit a comment, review other public
comments and the docket, or participate
in the public meeting, contact Ms.
Brenda Edwards at (202) 586–2945 or by
email: Brenda.Edwards@ee.doe.gov.
FOR FURTHER INFORMATION CONTACT:
Ashley Armstrong, U.S. Department of
Energy, Office of Energy Efficiency and
Renewable Energy, Building
Technologies Program, EE–5B, 1000
Independence Avenue SW.,
Washington, DC 20585–0121.
Telephone: 202–586–6590. Email:
Ashley.Armstrong@ee.doe.gov.
Laura Barhydt, U.S. Department of
Energy, Office of the General Counsel,
GC–32, 1000 Independence Avenue
SW., Washington, DC 20585–0121.
Telephone: (202) 287–5772. Email:
Laura.Barhydt@hq.doe.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Authority and Background
A. Authority
B. Background
II. Discussion
A. Regional Standards
B. Definitions
C. Public Awareness
D. Reporting
E. Proactive Investigation
F. Record Retention and Requests
G. Violations and Routine Violations
H. Remediation
I. Labeling
J. Manufacturer Liability
K. Additional Prohibited Acts for
Distributors, Contractors and Dealers
L. Summary Table
M. Impact of Regional Enforcement
Proposal on National Impacts Analysis
III. Procedural Issues and Regulatory Review
A. Review Under Executive Order 12866
B. Review Under the Regulatory Flexibility
Act
C. Review Under the Paperwork Reduction
Act of 1995
D. Review Under the National
Environmental Policy Act of 1969
E. Review Under Executive Order 13132
F. Review Under Executive Order 12988
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Agencies
[Federal Register Volume 80, Number 223 (Thursday, November 19, 2015)]
[Proposed Rules]
[Pages 72358-72373]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-29536]
========================================================================
Proposed Rules
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.
========================================================================
Federal Register / Vol. 80, No. 223 / Thursday, November 19, 2015 /
Proposed Rules
[[Page 72358]]
NUCLEAR REGULATORY COMMISSION
10 CFR Parts 26, 50, 52, 73, and 140
[NRC-2015-0070]
RIN 3150-AJ59
Regulatory Improvements for Decommissioning Power Reactors
AGENCY: Nuclear Regulatory Commission.
ACTION: Advance notice of proposed rulemaking; request for comment.
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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is issuing this
advance notice of proposed rulemaking (ANPR) to obtain input from
stakeholders on the development of a draft regulatory basis. The draft
regulatory basis would support potential changes to the NRC's
regulations for the decommissioning of nuclear power reactors. The
NRC's goals in amending these regulations would be to provide an
efficient decommissioning process, reduce the need for exemptions from
existing regulations, and support the principles of good regulation,
including openness, clarity, and reliability. The NRC is soliciting
public comments on the contemplated action and invites stakeholders and
interested persons to participate. The NRC plans to hold a public
meeting to promote full understanding of the questions contained in
this ANPR and facilitate public comment.
DATES: Submit comments by January 4, 2016. Comments received after this
date will be considered if it is practical to do so, but the NRC is
able to ensure consideration only for comments received on or before
this date.
ADDRESSES: You may submit comments by any of the following methods
(unless this document describes a different method for submitting
comments on a specific subject):
Federal rulemaking Web site: Go to https://www.regulations.gov and search for Docket ID NRC-2015-0070. Address
questions about NRC dockets to Carol Gallagher; telephone: 301-415-
3463; email: Carol.Gallagher@nrc.gov. For technical questions contact
the individual 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.
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: Jason B. Carneal, Office of Nuclear
Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington, DC
20555-0001; telephone: 301-415-1451; email: Jason.Carneal@nrc.gov.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Obtaining Information and Submitting Comments
II. Background
A. Regulatory Actions Related to Decommissioning Power Reactors
B. Licensing Actions Related to Decommissioning Power Reactors
III. Discussion
IV. Regulatory Objectives
A. Applicability to NRC Licenses and Approvals
B. Interim Regulatory Actions
V. Specific Considerations
VI. Public Meeting
VII. Cumulative Effects of Regulation
VIII. Plain Writing
IX. Availability of Documents
X. Rulemaking Process
I. Obtaining Information and Submitting Comments
A. Obtaining Information
Please refer to Docket ID NRC-2015-0070 when contacting the 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-2015-0070.
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. The
ADAMS accession number for each document referenced (if it is available
in ADAMS) is provided the first time that it is mentioned in the
SUPPLEMENTARY INFORMATION section. For the convenience of the reader,
instructions about obtaining materials referenced in this document are
provided in Section IX, ``Availability of Documents,'' of this
document.
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-2015-0070 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 posts all comment submissions at https://www.regulations.gov as well as entering 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
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entering the comment submissions into ADAMS.
II. Background
A. Regulatory Actions Related to Decommissioning Power Reactors
Significant regulations for the decommissioning of nuclear power
reactors were not included in NRC rules promulgated before 1988. The
NRC published a final rule in the Federal Register on June 27, 1988 (53
FR 24018), establishing decommissioning requirements for various types
of licensees. By the early 1990s, the NRC recognized a need for more
changes to the power reactor decommissioning regulations and published
a proposed rule to amend its regulations for reactor decommissioning in
1995 (60 FR 37374; July 20, 1995). In 1996, the NRC amended its
regulations for reactor decommissioning to clarify ambiguities, make
generically applicable procedures that had been used on a case-by-case
basis, and allow for greater public participation in the
decommissioning process (61 FR 39278; July 29, 1996). However, as an
increasing number of power reactor licensees began decommissioning
their reactors, it became apparent in the late 1990s that additional
rulemaking was needed on specific topics to improve the efficiency and
effectiveness of the decommissioning process.
In a series of Commission papers issued between 1997 and 2001, the
NRC staff provided options and recommendations to the Commission to
address regulatory improvements related to power reactor
decommissioning. In the Staff Requirements Memorandum (SRM) to SECY-99-
168, ``Improving Decommissioning Regulations for Nuclear Power
Plants,'' dated December 21, 1999 (ADAMS Accession No. ML003752190),
the Commission directed the NRC staff to proceed with a single,
integrated, risk-informed decommissioning rule, addressing the areas of
emergency preparedness (EP), insurance, safeguards, staffing and
training, and backfit. The objective of the rulemaking was to clarify
and remove certain regulations for decommissioning power reactors based
on the reduction in radiological risk compared to operating reactors.
At an operating reactor, the high temperature and pressure of the
reactor coolant system, as well as the inventory of relatively short-
lived radionuclides, contribute to both the risk and consequences of an
accident. With the permanent cessation of reactor operations and the
permanent removal of the fuel from the reactor core, such accidents are
no longer possible. As a result of the shutdown and removal of fuel,
the reactor, reactor coolant system, and supporting systems no longer
operate and, therefore, have no function. Hence, postulated accidents
involving failure or malfunction of the reactor, reactor coolant
system, or supporting systems are no longer applicable.
During reactor decommissioning, the principal radiological risks
are associated with the storage of spent fuel onsite. Generally, a few
months after the reactor has been permanently shut down, there are no
possible design-basis events that could result in a radiological
release exceeding the limits established by the U.S. Environmental
Protection Agency's (EPA) early- phase Protective Action Guidelines of
1 roentgen equivalent man at the exclusion area boundary. The only
accident that might lead to a significant radiological release at a
decommissioning reactor is a zirconium fire. The zirconium fire
scenario is a postulated, but highly unlikely, beyond-design-basis
accident scenario that involves a major loss of water inventory from
the spent fuel pool (SFP), resulting in a significant heat-up of the
spent fuel, and culminating in substantial zirconium cladding oxidation
and fuel damage. The analyses of spent fuel heat-up scenarios that
might result in a zirconium fire are related to the decay heat of the
irradiated fuel stored in the SFP. Therefore, the probability of a
zirconium fire scenario continues to decrease as a function of the time
that the decommissioning reactor has been permanently shut down.
On June 28, 2000, the NRC staff submitted SECY-00-0145,
``Integrated Rulemaking Plan for Nuclear Power Plant Decommissioning''
(ADAMS Accession No. ML003721626) to the Commission, proposing an
integrated decommissioning rulemaking plan. The rulemaking plan was
contingent on the completion of a zirconium fire risk study provided in
NUREG-1738, ``Technical Study of Spent Fuel Pool Accident Risk at
Decommissioning Nuclear Power Plants'' (ADAMS Accession No.
ML010430066), on the accident risks at decommissioning reactor SFPs.
The NUREG was issued on February 28, 2001.
Although NUREG-1738 could not completely rule out the possibility
of a zirconium fire after a long spent fuel decay times, it did
demonstrate that storage of spent fuel in a high-density configuration
in SFPs is safe, and that the risk of accidental release of a
significant amount of radioactive material to the environment is low.
The study used simplified and sometimes bounding assumptions and models
to characterize the likelihood and consequences of beyond-design-basis
SFP accidents. Subsequent NRC regulatory activities and studies
(described in more detail below) have reaffirmed the safety and
security of spent fuel stored in pools and shown that SFPs are
effectively designed to prevent accidents.
Because of uncertainty in the NUREG-1738 conclusions about the risk
of SFP fires, the NRC staff faced a challenge in developing a generic
decommissioning rule for EP, physical security, and insurance. To seek
additional Commission direction, on June 4, 2001, the NRC staff
submitted to the Commission SECY-01-0100, ``Policy Issues Related to
Safeguards, Insurance, and Emergency Preparedness Regulations at
Decommissioning Nuclear Power Plants Storing Fuel in Spent Fuel Pools''
(ADAMS Accession No. ML011450420). However, based on the reactor
security implications of the terrorist attacks of September 11, 2001
(9/11), and the results of NUREG-1738, the NRC redirected its
rulemaking priorities to focus on programmatic regulatory changes
related to safeguards and security. In a memorandum to the Commission,
``Status of Regulatory Exemptions for Decommissioning Plants,'' dated
August 16, 2002 (ADAMS Accession No. ML030550706), the NRC staff stated
that no additional permanent reactor shut downs were anticipated in the
foreseeable future, and that no immediate need existed to proceed with
the decommissioning regulatory improvement work that was planned.
Consequently, the NRC shifted resources allocated for reactor
decommissioning rulemaking to other activities. The NRC staff concluded
that if any additional reactors permanently shut down after the
rulemaking effort was suspended, establishment of the decommissioning
regulatory framework would continue to be addressed through the license
amendment and exemption processes.
Between 1998 and 2013, no power reactors permanently ceased
operation. Since 2013, five power reactors have permanently shut down,
defueled, and are transitioning to decommissioning. For these
decommissioning reactor licensees, the NRC has processed various
license amendments and exemptions to establish a decommissioning
regulatory framework, similar to the method used in the 1990s.
Following the 9/11 attack, the NRC took several actions to further
reduce the possibility of a SFP fire. In the wake of the attacks, the
NRC issued orders
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that required licensees to implement additional security measures,
including increased patrols, augmented security forces and
capabilities, and more restrictive site-access controls to reduce the
likelihood of an accident, including a SFP accident, resulting from a
terrorist initiated event. The NRC's regulatory actions after the
terrorist attacks of 9/11 have significantly enhanced the safety of
SFPs. A comprehensive discussion of post 9/11 activities, some of which
specifically address SFP safety and security, is provided in the
memorandum to the Commission titled, ``Documentation of Evolution of
Security Requirements at Commercial Nuclear Power Plants with Respect
to Mitigation Measures for Large Fires and Explosions,'' dated February
4, 2010 (ADAMS Accession No. ML092990438).
In addition, the NRC amended Sec. 50.55(hh)(2) of title 10 of the
Code of Federal Regulations (10 CFR) to require licensees to implement
other mitigating measures to maintain or restore SFP cooling capability
in the event of loss of large areas of the plant due to fires or
explosions, which further decreases the probability of a SFP fire (74
FR 13926, March 27, 2009). The Nuclear Energy Institute (NEI) provided
detailed guidance in ``NEI-06-12: B.5.b Phase 2 & 3 Submittal
Guideline,'' Revision 2, dated December 2006 (ADAMS Accession No.
ML070090060). The NRC endorsed this guidance on December 22, 2006 (non-
publicly available), for compliance with the Sec. 50.54(hh)(2)
requirements. Under Sec. 50.54(hh)(2), power reactor licensees are
required to implement strategies such as those provided in NEI-06-12.
The NEI's guidance specifies that portable, power-independent pumping
capabilities must be able to provide at least 500 gallons per minute
(gpm) of bulk water makeup to the SFP, and at least 200 gpm of water
spray to the SFP. Recognizing that the SFP is more susceptible to a
release when the spent fuel is in a nondispersed configuration, the
guidance also specifies that the portable equipment is to be capable of
being deployed within 2 hours for a nondispersed configuration. The NRC
found the NEI guidance to be an effective means for mitigating the
potential loss of large areas due to fires or explosions.
Further, other organizations, such as Sandia National Laboratory,
have confirmed the effectiveness of the additional mitigation
strategies to maintain spent fuel cooling in the event the pool is
drained and its initial water inventory is reduced or lost entirely.
The analyses conducted by the Sandia National Laboratories
(collectively, the ``Sandia studies''), are sensitive security related
information and are not available to the public. The Sandia studies
considered spent fuel loading patterns and other aspects of a
pressurized-water reactor SFP and a boiling water reactor SFP,
including the role that the circulation of air plays in the cooling of
spent fuel. The Sandia studies indicated that there may be a
significant amount of time between the initiating event (i.e., the
event that causes the SFP water level to drop) and the spent fuel
assemblies becoming partially or completely uncovered. In addition, the
Sandia studies indicated that for those hypothetical conditions where
air cooling may not be effective in preventing a zirconium fire, there
is a significant amount of time between the spent fuel becoming
uncovered and the possible onset of such a zirconium fire, thereby
providing a substantial opportunity for both operator and system event
mitigation.
The Sandia studies, which account for relevant heat transfer and
fluid flow mechanisms, also indicated that air-cooling of spent fuel
would be sufficient to prevent SFP zirconium fires at a point much
earlier following fuel offload from the reactor than previously
considered (e.g., in NUREG-1738). Thus, the fuel is more easily cooled,
and the likelihood of an SFP fire is therefore reduced.
Additional mitigation strategies implemented subsequent to 9/11
enhance spent fuel coolability, and the potential to recover SFP water
level and cooling prior to a potential SFP zirconium fire. The Sandia
studies also confirmed the effectiveness of additional mitigation
strategies to maintain spent fuel cooling in the event the pool is
drained and its initial water inventory is reduced or lost entirely.
Based on this more recent information, and the implementation of
additional strategies following 9/11, the probability of a SFP
zirconium fire initiation is expected to be less than reported in
NUREG-1738 and previous studies.
The NUREG-2161, ``Consequence Study of a Beyond-Design-Basis
Earthquake Affecting the Spent Fuel Pool for a U.S. Mark I Boiling
Water Reactor,'' dated September 2014 (ADAMS Accession No.
ML14255A365), evaluated the potential benefits of strategies required
in Sec. 50.54(hh)(2). The NUREG-2161 found that successful
implementation of mitigation strategies significantly reduces the
likelihood of a release from the SFP in the event of a loss of cooling
water. Additionally, NUREG-2161 found that the placement of spent fuel
in a dispersed configuration in the SFP, such as the 1 x 4 pattern,
would have a positive effect in promoting natural circulation, which
enhances air coolability and thereby reduces the likelihood of a
release from a completely drained SFP. An information notice titled,
``Potential Safety Enhancements to Spent Fuel Pool Storage,'' dated
November 14, 2014 (ADAMS Accession No. ML14218A493), was issued to all
licensees informing them of the insights from NUREG-2161. This
information notice describes the benefits of storing spent fuel in more
favorable loading patterns, placing spent fuel in dispersed patterns
immediately after core offload, and taking action to improve mitigation
strategies.
In addition, in response to the Fukushima Dai-ichi accident, the
NRC is currently implementing regulatory actions to further enhance
reactor and SFP safety. On March 12, 2012, the NRC issued Order EA-12-
051, ``Issuance of Order to Modify Licenses with Regard to Reliable
Spent Fuel Pool Instrumentation,'' (ADAMS Accession No. ML12054A679),
which requires that licensees install 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. Although the primary purpose of the order was to
ensure that operators were not distracted by uncertainties related to
SFP conditions during the accident response, the improved monitoring
capabilities will help in the diagnosis and response to potential
losses of SFP integrity. In addition, on March 12, 2012, the NRC issued
Order EA-12-049, ``Order Modifying Licenses with Regard to Requirements
for Mitigation Strategies for Beyond-Design-Basis External Events,''
(ADAMS Accession No. ML12054A735), which requires licensees to develop,
implement, and maintain guidance and strategies to maintain or restore
SFP cooling capabilities, independent of alternating current power,
following a beyond-design-basis external event. These requirements
ensure a more reliable and robust mitigation capability is in place to
address degrading conditions in SFPs.
The NRC believes that much of the information in the SFP studies
that have been accomplished since NUREG-1738, as discussed previously,
will contribute to the development of a regulatory basis for the
current power reactor decommissioning rulemaking effort.
In the SRM to SECY-14-0118, ``Request by Duke Energy Florida, Inc.,
for Exemptions from Certain Emergency Planning Requirements,'' dated
December 30, 2014 (ADAMS Accession No. ML14364A111), the Commission
directed the NRC staff to proceed with
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rulemaking on reactor decommissioning and set an objective of early
2019 for its completion. The Commission also stated that this
rulemaking should address the following:
Issues discussed in SECY-00-0145 such as the graded
approach to emergency preparedness;
Lessons learned from the plants that have already (or are
currently) going through the decommissioning process;
The advisability of requiring a licensee's post-shutdown
decommissioning activity report (PSDAR) to be approved by the NRC;
The appropriateness of maintaining the three existing
options (DECON, SAFSTOR, and ENTOMB \1\) for decommissioning and the
timeframes associated with those options;
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\1\ These options were first identified in the 1988 Generic
Environmental Impact Statement and defined as follows:
DECON: The equipment, structures, and portions of the facility
and site that contain radioactive contaminants are promptly removed
or decontaminated to a level that permits termination of the license
shortly after cessation of operations.
SAFSTOR: The facility is placed in a safe, stable condition and
maintained in that state (safe storage) until it is subsequently
decontaminated and dismantled to levels that permit license
termination. During SAFSTOR, a facility is left intact, but the fuel
has been removed from the reactor vessel, and radioactive liquids
have been drained from systems and components and then processed.
Radioactive decay occurs during the SAFSTOR period, thus reducing
the quantity of contaminated and radioactive material that must be
disposed of during decontamination and dismantlement. The definition
of SAFSTOR also includes the decontamination and dismantlement of
the facility at the end of the storage period.
ENTOMB: Radioactive systems, structures, and components are
encased in a structurally long-lived substance, such as concrete.
The entombed structure is appropriately maintained, and continued
surveillance is carried out until the radioactivity decays to a
level that permits termination of the license.
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The appropriate role of State and local governments and
nongovernmental stakeholders in the decommissioning process; and
Any other issues deemed relevant by the NRC staff.
In SECY-15-0014, ``Anticipated Schedule and Estimated Resources for
a Power Reactor Decommissioning Rulemaking,'' dated January 30, 2015
(ADAMS Accession No. ML15082A089--redacted), the NRC staff committed to
proceed with a rulemaking on reactor decommissioning and provided an
anticipated schedule and estimate of the resources required for the
completion of a decommissioning rulemaking. In SECY-15-0127,
``Schedule, Resource Estimates, and Impacts for the Power Reactor
Decommissioning Rulemaking,'' dated October 7, 2015, (non-publicly
available), the staff provided further information to the Commission on
resource estimates and work that will be delayed or deferred in fiscal
year (FY) 2016 to enable the staff to make timely progress consistent
with Commission direction to have a final rule submitted to the
Commission by the end of FY 2019.
B. Licensing Actions Related to Decommissioning Power Reactors
In 2013, four power reactor units permanently shut down without
significant advance notice or pre-planning. These licensees and the
associated shut down reactors are: Duke Energy Florida for Crystal
River Unit 3 Nuclear Generation Plant; Dominion Energy Kewaunee for
Kewaunee Power Station; and Southern California Edison for San Onofre
Nuclear Generating Station, Units 2 and 3.
On December 29, 2014, Entergy Nuclear Operations, Inc., shut down
Vermont Yankee Nuclear Power Station (VY), and on January 12, 2015, the
licensee certified that VY had permanently ceased operation and removed
fuel from the reactor vessel. Furthermore, Exelon Generation Company,
the licensee for the Oyster Creek Nuclear Generating Station, has
indicated that it is currently planning to shut down that facility in
2019.
Both the decommissioning reactor licensees and the NRC have
expended substantial resources processing licensing actions for these
power reactors during their transition period to a decommissioning
status. Consistent with the power reactors that permanently shutdown in
the 1990s, the licensees that are currently transitioning to
decommissioning are establishing a long-term regulatory framework based
on the low risk of an offsite radiological release posed by a
decommissioning reactor. The licensees are seeking NRC approval of
exemptions and amendments, to reduce requirements no longer needed or
no longer relevant for permanently shutdown reactors.
The NRC has not identified any significant risks to public health
and safety in the current regulatory framework for decommissioning
power reactors. Consequently, the need for a power reactor
decommissioning rulemaking is not based on any identified safety-driven
or security-driven concerns. When compared to an operating reactor, the
risk of an offsite radiological release is significantly lower, and the
types of possible accidents are significantly fewer, at a nuclear power
reactor that has permanently ceased operations and removed fuel from
the reactor vessel. Although the need for a power reactor
decommissioning rulemaking is not based on safety concerns, the NRC
understands that the decommissioning process can be improved and made
more efficient and predictable by reducing its reliance on processing
licensing actions to achieve a long-term regulatory framework for
decommissioning. Therefore, the primary objective of the
decommissioning rulemaking is to implement appropriate regulatory
changes that reduce the number of licensing actions needed during
decommissioning.
The NRC anticipates that a power reactor decommissioning rulemaking
will require substantial interactions with all stakeholders. The
information developed in SECY-00-0145 provides a historical perspective
on the regulatory challenges that the NRC is facing for those licensees
currently transitioning to decommissioning. In addition, SECY-00-0145
serves as a good starting point for the current reactor decommissioning
rulemaking effort. However, as a result of the changes to operating
reactor regulations in the areas of EP and security after September 11,
2001, and the earthquake and tsunami affecting the Fukushima Dai-ichi
nuclear power station in Japan, there will likely be many differences
in the current rulemaking effort as compared to the rulemaking approach
proposed in SECY-00-0145. The proposed decommissioning rulemaking
effort needs to be carefully scoped to ensure an efficient and timely
rulemaking process. Incorporating too broad of a regulatory scope into
a single rule was one of the challenges encountered during the prior
rulemaking effort.
Until a new decommissioning rulemaking is complete, licensees that
are considering decommissioning can use recently completed
decommissioning licensing actions as a template for beginning
decommissioning activities. In addition, the NRC can use these recent
licensing action evaluations as a precedent when processing similar
decommissioning actions. The recently completed licensing actions will
also provide supporting information for the framework and context of a
power reactor decommissioning rulemaking. The NRC has also completed
interim staff guidance on processing EP license exemptions (NSIR/DPR-
ISG-02, ``Emergency Planning Exemption Requests for Decommissioning
Nuclear Power Plants,'' ADAMS Accession No. ML13304B442), and has
issued draft interim staff guidance for physical security license
exemptions (NSIR/DSP-ISG-03, ``Review of Security
[[Page 72362]]
Exemptions/License Amendment Requests for Decommissioning Nuclear Power
Plants,'' ADAMS Accession No. ML14294A170).
The NRC intends to work closely with all stakeholders to ensure
that the decommissioning rulemaking can be achieved within a reasonable
timeframe.
III. Discussion
The NRC has determined that interaction with the public and
stakeholders will help to inform the development of a regulatory basis
for the power reactor decommissioning rulemaking. This ANPR is
structured around questions intended to solicit information that: (1)
Defines the scope of stakeholder interest in a decommissioning
rulemaking, and (2) supports the development of a complete and adequate
regulatory basis. Commenters should feel free to provide feedback on
any aspect of power reactor decommissioning that would support this
ANPR's regulatory objective, whether or not in response to a question
listed in this ANPR.
IV. Regulatory Objectives
The NRC is developing a proposed rule that would amend the current
requirements for power reactors transitioning to decommissioning.
Experience has demonstrated that licensees for decommissioning power
reactors seek several exemptions and license amendments per site to
establish a long-term licensing basis for decommissioning. By issuing a
decommissioning rule, the NRC would be able to establish regulations
that would maintain safety and security at sites transitioning to
decommissioning without the need to grant specific exemptions or
license amendments in certain regulatory areas. Specifically, the
decommissioning rulemaking would have the following goals: (1) Continue
to provide reasonable assurance of adequate protection of the public
health and safety and common defense and security at decommissioning
power reactor sites; (2) Ensure that the requirements for
decommissioning power reactors are clear and appropriate; (3) Codify
those issues that are found to be generically applicable to all
decommissioning power reactors and have resulted in the need for
similarly-worded exemptions or license amendments; and (4) Identify,
define, and resolve additional areas of concern related to the
regulation of decommissioning power reactors.
A. Applicability to NRC Licenses and Approvals
The NRC would apply these updated requirements to power reactors
permanently shut down and defueled and entered into decommissioning.
Accordingly, the NRC envisions that the requirements would apply to
the following:
Nuclear power plants currently licensed under 10 CFR part
50;
Nuclear power plants currently being constructed under
construction permits issued under 10 CFR part 50, or whose construction
permits may be reinstated;
Future nuclear power plants whose construction permits and
operating licenses are issued under 10 CFR part 50; and
Current and future nuclear power plants licensed under 10
CFR part 52.
B. Interim Regulatory Actions
The NRC recognizes that it will take several years to issue a final
rule. If additional reactors begin decommissioning before
implementation of the final rule, the NRC anticipates that licensees
will continue to use existing regulatory processes (for example,
exemptions and license amendments) to establish their decommissioning
regulatory framework.
V. Specific Considerations
The NRC is seeking stakeholders' input on the following specific
areas related to power reactor decommissioning regulations. The NRC
asks that commenters provide the bases for their comments (i.e., the
underlying rationale for the position stated in the comment) to enable
the NRC to have a complete understanding of commenters' positions.
A. Questions Related to Emergency Preparedness Requirements for
Decommissioning Power Reactor Licensees
The EP requirements of 10 CFR 50.47, ``Emergency Plans,'' and
appendix E, ``Emergency Planning and Preparedness for Production and
Utilization Facilities,'' to 10 CFR part 50 continue to apply to a
nuclear power reactor after permanent cessation of operations and
removal of fuel from the reactor vessel. Currently, there are no
explicit regulatory provisions distinguishing EP requirements for a
power reactor that has been shut down from those for an operating power
reactor. The NRC is considering several changes to the EP requirements
in 10 CFR part 50, ``Domestic Licensing of Production and Utilization
Facilities,'' including Sec. 50.47, ``Emergency Plans;'' appendix E to
10 CFR part 50, ``Emergency Planning and Preparedness for Production
and Utilization Facilities''; Sec. 50.54(s), (q), and (t), and Sec.
50.72(a) and (b). These areas are discussed in more detail in this
section. The questions on EP have been listed in this document using
the acronym ``EP'' and sequential numbers.
EP-1: The NRC has previously approved exemptions from the emergency
planning regulations in Sec. 50.47 and appendix E to 10 CFR part 50 at
permanently shut down and defueled power reactor sites based on the
determination that there are no possible design-basis events at a
decommissioning licensee's facility that could result in an offsite
radiological release exceeding the limits established by the EPA's
early-phase protective action guidelines of 1 rem at the exclusion area
boundary. In addition, the possibility of the spent fuel in the SFP
reaching the point of a beyond-design-basis zirconium fire is highly
unlikely based on an analysis of the amount of time before spent fuel
could reach the zirconium ignition temperature during a SFP partial
drain-down event, assuming a reasonably conservative adiabatic heat-up
calculation. A minimum of 10 hours is the time that was used in
previously approved exemptions, which allows for onsite mitigative
actions to be taken by the licensee or actions to be taken by offsite
authorities in accordance with the comprehensive emergency management
plans (i.e., all hazards plans). For licensees that have been granted
exemptions, the EP regulations, as exempted, continue to require the
licensees to, among other things, maintain an onsite emergency plan
addressing the classification of an emergency, notification of
emergencies to licensee personnel and offsite authorities, and
coordination with designated offsite government officials following an
event declaration so that, if needed, offsite authorities may implement
protective actions using a comprehensive emergency management (all-
hazard) approach to protect public health and safety. The EP exemptions
relieve the licensee from the requirement to maintain formal offsite
radiological emergency preparedness, including the 10-mile emergency
planning zone.
a. What specific EP requirements in Sec. 50.47 and appendix E to
10 CFR part 50 should be evaluated for modification, including any EP
requirements not addressed in previously approved exemption requests
for licensees with decommissioning reactors?
b. What existing NRC EP-related guidance and other documents should
[[Page 72363]]
be revised to address implementation of changes to the EP requirements?
c. What new guidance would be necessary to support implementation
of changes to the EP requirements?
EP-2: Rulemaking may involve a tiered approach for modifying EP
requirements based on several factors, including, but not limited to,
the source term after cessation of power operations, removal of fuel
from the reactor vessel, elapsed time after permanent defueling, and
type of long-term onsite fuel storage.
a. What tiers and associated EP requirements would be appropriate
to consider for this approach?
b. What factors should be considered in establishing each tier?
c. What type of basis could be established to support each tier or
factor?
d. Should the NRC consider an alternative to a tiered approach for
modifying EP requirements? If so, provide a description of a proposed
alternative.
EP-3: Several aspects of offsite EP, such as formal offsite
radiological emergency plans, emergency planning zones, and alert and
notification systems, may not be necessary at a decommissioning site
when beyond-design-basis events--which could result in the need for
offsite protective actions--are few in number and highly unlikely to
occur.
a. Presently, licensees at decommissioning sites must maintain the
following capabilities to initiate and implement emergency response
actions: Classify and declare an emergency, assess releases of
radioactive materials, notify licensee personnel and offsite
authorities, take mitigative actions, and request offsite assistance if
needed. What other aspects of onsite EP and response capabilities may
be appropriate for licensees at decommissioning sites to maintain once
the requirements to maintain formal offsite EP are discontinued?
b. To what extent would it be appropriate for licensees at
decommissioning sites to arrange for offsite assistance to supplement
onsite response capabilities? For example, licensees at decommissioning
sites would maintain agreements with offsite authorities for fire,
medical, and law enforcement support.
c. What corresponding changes to Sec. 50.54(s)(2)(ii) and
50.54(s)(3) (about U.S. Federal Emergency Management Agency (FEMA)-
identified offsite EP deficiencies and FEMA offsite EP findings,
respectively) may be appropriate when offsite radiological emergency
plans would no longer be required?
EP-4: Under Sec. 50.54(q), nuclear power reactor licensees are
required to follow and maintain the effectiveness of emergency plans
that meet the standards in Sec. 50.47 and the requirements in appendix
E to 10 CFR part 50. These licensees must submit to the NRC, for prior
approval, changes that would reduce the effectiveness of their
emergency plans.
a. Should Sec. 50.54(q) be modified to recognize that nuclear
power reactor licensees, once they certify under Sec. 50.82,
``Termination of License,'' to have permanently ceased operation and
permanently removed fuel from the reactor vessel, would no longer be
required to meet all standards in Sec. 50.47 and all requirements in
appendix E? If so, describe how.
b. Should nuclear power reactor licensees, once they certify under
Sec. 50.82 to have permanently ceased operation and permanently
removed fuel from the reactor vessel, be allowed to make emergency plan
changes based on Sec. 50.59, ``Changes, Tests, and Experiments,''
impacting EP related equipment directly associated with power
operations? If so, describe how this might be addressed under Sec.
50.54(q).
EP-5: Under Sec. 50.54(t), nuclear power reactor licensees are
required to review all EP program elements every 12 months. Some EP
program elements may not apply to permanently shut down and defueled
sites; for example, the adequacy of interfaces with State and local
government officials when offsite radiological emergency plans may no
longer be required. Should Sec. 50.54(t) be clarified to distinguish
between EP program review requirements for operating versus permanently
shut down and defueled sites? If so, describe how.
EP-6: The Emergency Response Data System (ERDS) transmits key
operating plant data to the NRC during an emergency. Under Sec.
50.72(a)(4), nuclear power reactor licensees are required to activate
ERDS within 1 hour after declaring an emergency at an ``Alert'' or
higher emergency classification level. Much of the plant data, and
associated instrumentation for obtaining the data, would no longer be
available or needed after a reactor is permanently shut down and
defueled. Section VI.2 to appendix E of 10 CFR part 50 does not require
a nuclear power facility that is shut down permanently or indefinitely
to have ERDS. At what point(s) in the decommissioning process should
ERDS activation, ERDS equipment, and the instrumentation for obtaining
ERDS data, no longer be necessary?
EP-7: Under Sec. 50.72(a)(1)(i), nuclear power reactor licensees
are required to make an immediate notification to the NRC for the
declaration of any of the emergency classes specified in the licensee's
NRC-approved emergency plan. Notification of the lowest level of a
declared emergency at a permanently shut down and defueled reactor
facility may no longer need to be an immediate notification (e.g.,
consider changing the immediate notification category for a
Notification of Unusual Event emergency declaration to a 1-hour
notification). What changes to Sec. 50.72(a)(1)(i) should be
considered for decommissioning sites?
EP-8: Under Sec. 50.72(b)(3)(xiii), nuclear power reactor
licensees are required to make an 8-hour report of any event that
results in a major loss of emergency assessment capability, offsite
response capability, or offsite communications capability (e.g.,
significant portion of control room indication, emergency notification
system, or offsite notification system). Certain parts of this section
may not apply to a permanently shut down and defueled site (e.g., a
major loss of offsite response capability once offsite radiological
emergency plans would no longer be required). What changes to Sec.
50.72(b)(3)(xiii) should be considered for decommissioning sites?
B. Questions Related to the Physical Security Requirements for
Decommissioning Power Reactor Licensees
Currently, the physical protection programs applied at
decommissioning reactors are managed through security plan changes
submitted to the NRC under the provisions of Sec. Sec. 50.90 and
50.54(p) and exemptions submitted to the NRC for approval under Sec.
73.5. All physical protection program requirements contained in the
current Sec. 73.55, appendix B to 10 CFR part 73, ``General Criteria
for Security Personnel,'' and appendix C to 10 CFR part 73, ``Licensee
Safeguards Contingency Plans,'' are applicable to operating reactors
and decommissioning reactors unless otherwise modified. The questions
on physical security requirements (PSR) have been listed in this
document using the acronym ``PSR'' and sequential numbers.
PSR-1: Identify any specific security requirements in Sec. 73.55
and appendices B and C to 10 CFR part 73 that should be considered for
change to reflect differences between requirements for operating
reactors and permanently shut down and defueled reactors.
[[Page 72364]]
PSR-2: The physical security requirements protecting the spent fuel
stored in the SFP from the design basis threat (DBT) for radiological
sabotage are contained in 10 CFR part 73 and would remain unchanged by
this rulemaking. However:
a. Are there any suggested changes to the physical security
requirements in 10 CFR part 73 or its appendices that would be
generically applicable to a decommissioning power reactor while spent
fuel is stored in the SFP (e.g., are there circumstances where the
minimum number of armed responders could be reduced at a
decommissioning facility)? If so, describe them.
b. Which physical security requirements in 10 CFR part 73 should be
generically applicable to spent fuel stored in a dry cask independent
spent fuel storage installation?
c. Should the DBT for radiological sabotage continue to apply to
decommissioning reactors? If it should cease to apply in the
decommissioning process, when should it end?
PSR-3: Should the NRC develop and publish additional security-
related regulatory guidance specific to decommissioning reactor
physical protection requirements, or should the NRC revise current
regulatory guidance documents? If so, describe them.
PSR-4: What clarifications should the NRC make to target sets in
Sec. 73.55(f) that addresses permanently shut down and defueled
reactors?
PSR-5: For a decommissioning power reactor, are both the central
alarm station and a secondary alarm station necessary? If not, why not?
If both alarm stations are considered necessary, could the secondary
alarm station be located offsite?
PSR-6: Under Sec. 73.54, power reactor licensees are required to
protect digital computer and communication systems and networks. These
requirements apply to licensees licensed to operate a nuclear power
plant as of November 23, 2009, including those that have subsequently
shut down and entered into decommissioning.
a. Section 73.54 clearly states that the requirements for
protection of digital computer and communications systems and networks
apply to power reactors licensed under 10 CFR part 50 that were
licensed to operate as of November 23, 2009. However, Sec. 73.54 does
not explicitly mention the applicability of these requirements to power
reactors that are no longer authorized to operate and are transitioning
to decommissioning. Are any changes necessary to Sec. 73.54 to
explicitly state that decommissioning power reactors are within the
scope of Sec. 73.54? If so, describe them.
b. Should there be reduced cyber security requirements in Sec.
73.54 for decommissioning power reactors based on the reduced risk
profile during decommissioning? If so, what would be the recommended
changes?
PSR-7: Under Sec. 73.55(p)(1)(i) and (p)(1)(ii), power reactor
licensees suspend security measures during certain emergency conditions
or during severe weather under the condition that the suspension ``must
be approved as a minimum by a licensed senior operator.'' Literal
interpretation of these regulations would require that only a licensed
senior operator could suspend certain security measures at a
decommissioning reactor facility. However, for permanently shut down
and defueled reactors, licensed operators are no longer required, and
licensees typically eliminate these positions shortly after shut down.
Decommissioning licensees create a new certified fuel handler (CFH)
position (consistent with the definition in Sec. 50.2) as the senior
non-licensed operator at the plant. These positions cannot be compared
directly, so licensees typically are unable to demonstrate that the CFH
position meets the ``as a minimum'' criteria in Sec. 73.55(p). Because
the regulation does not include a provision that authorizes a CFH to
approve the suspension of security measures for permanently shut down
and defueled reactors (similar to Sec. 50.54(y) authorizing the CFH to
approve departures from license conditions or technical
specifications), licensees have requested exemptions from Sec.
73.55(p)(1)(i) and (p)(1)(ii) to allow CFHs to have this authority.
Based on this discussion, are there any concerns about changing the
regulations to include the CFH as having the authority to suspend
certain security measures during certain emergency conditions or during
severe weather for permanently shut down and defueled reactor
facilities? If so, describe them.
PSR-8: Regulations in Sec. 73.55(j)(4)(ii) require continuous
communications capability between security alarm stations and the
control room. The intent of Sec. 73.55(j)(4)(ii) is to ensure that
effective communication between the alarm stations and operations staff
with shift command function responsibility is maintained at all times.
The control room at an operating reactor contains the controls and
instrumentation necessary to ensure safe operation of the reactor and
reactor support systems during normal, off-normal, and accident
conditions and, therefore, is the location of the shift command
function. Following certification of permanent shut down and removal of
the fuel from the reactor, operation of the reactor is no longer
permitted. Although the control room at a permanently shut down and
defueled reactor provides a central location from where the shift
command function can be conveniently performed because of existing
communication equipment, office computer equipment, and access to
reference material, the control room does not need to be the location
of the shift command function since shift command functions are not
tied to this location for safety reasons, and modern communication
systems permit continuous communication capability from anywhere on the
site.
The NRC is considering revising the requirements of Sec.
73.55(j)(4)(ii) for a permanently shut down and defueled reactor. The
revised requirements would be focused on maintaining a system of
continuous communications between the shift manager/CFH and the
security alarm stations (rather than the control room). Such a change
would provide the facility's shift manager/CFH the flexibility to leave
the control room without necessitating that other operational staff
remain in the control room to receive communications from the security
alarm stations. Personal communications systems would permit the shift
manager/CFH to perform managerial and supervisory activities throughout
the plant while maintaining the command function responsibility,
regardless of the supervisor's location.
Based on the discussion above, are there any concerns related to
changing the regulations in Sec. 73.55(j)(4)(ii) to allow another
communications system between the alarm stations and the shift manager/
CFH in lieu of the control room at permanently shut down and defueled
reactors? If so, describe them.
C. Questions Related to Fitness for Duty (FFD) Requirements for
Decommissioning Power Reactor Licensees
The NRC's regulations at Sec. 26.3 lists those licensees and other
entities that are required to comply with designated subparts of 10 CFR
part 26, ``Fitness for Duty Programs.'' Part 26 does not apply to power
reactor licensees that have certified under Sec. 50.82 to have
permanently shut down and defueled. The questions on fitness for duty
(FFD) have been listed in this document using the acronym ``FFD'' and
sequential numbers.
FFD-1: Currently, holders of power reactor licenses issued under 10
CFR part 50 or 10 CFR part 52, ``Licenses, Certifications, and
Approvals for
[[Page 72365]]
Nuclear Power Plants,'' must comply with the physical protection
requirements described in Sec. 73.55 during decommissioning. Under
Sec. 73.55, each nuclear power reactor licensee shall maintain and
implement its Commission-approved security plans as long as the
licensee has a 10 CFR part 50 or 52 license. Furthermore, Sec.
73.55(b)(9) requires the licensee to establish, maintain, and implement
an insider mitigation program (IMP) that contains elements from various
security programs, including the FFD program described in 10 CFR part
26. Each power reactor licensee has committed within its security plan
to using NEI 03-12, ``Security Plan Template,'' revision 7, as the
framework for developing its security plans to meet the requirements of
Sec. 73.55. NEI 03-12, which was endorsed by NRC Regulatory Guide (RG)
5.76, ``Physical Protection Programs at Nuclear Power Reactors
(Safeguards Information (SGI)),'' letter dated November 10, 2011,
states that the IMP is satisfied when the licensee ``implements the
elements of the IMP, utilizing the guidance provided in RG 5.77,
`Insider Mitigation Program.' '' The NRC is in the process of revising
RG 5.77 in order to clarify those FFD elements needed for the IMP.
a. Should the NRC pursue rulemaking to describe what provisions of
10 CFR part 26 apply to decommissioning reactor licensees or use
another method of establishing clear, consistent and enforceable
requirements? Describe other methods, as appropriate.
b. As an alternative to rulemaking, should the drug and alcohol
testing for decommissioning reactors be described in RG 5.77, with
appropriate reference to the applicable requirements in 10 CFR part 26?
This option would be contingent on an NEI commitment to revise NEI 03-
12 to include the most recent revision to RG 5.77 (which would include
the applicable drug and alcohol testing provisions) and an industry
commitment to update their security plans with the revised NEI 03-12.
c. Describe what drug and alcohol testing requirements in 10 CFR
part 26 are not necessary to fulfill the IMP requirements to assure
trustworthiness and reliability.
d. Should another regulatory framework be used, such as a corporate
drug testing program modelled on the U.S. Department of Health and
Human Services' Mandatory Guidelines for Federal Workplace Drug Testing
or the U.S. Department of Transportation's drug and alcohol testing
provisions in 49 CFR part 40? If this option is proposed, describe how
(i) the laboratory auditing, quality assurance, and reporting
requirements would be met by the proposal; (ii) licensees would conduct
alcohol testing; and (iii) the performance objectives of 10 CFR
26.23(a), (b), (c), and (d) would be met.
FFD-2: On March 31, 2008, the NRC published a final rule in the
Federal Register (73 FR 16966) adding subpart I, ``Managing Fatigue,''
to 10 CFR part 26. The addition of subpart I in the revised rule
provides reasonable assurance that the effects of fatigue and degraded
alertness on an individual's ability to safely and competently perform
his or her duties are managed commensurate with maintaining public
health and safety. The fatigue management provisions also reduce the
potential for worker fatigue (e.g., that associated with security
officers, maintenance personnel, control room operators, emergency
response personnel, etc.) to adversely affect the common defense and
security. The 2008 rule established clear and enforceable requirements
for operating nuclear power plant licensees and other entities for the
management of worker fatigue. Power reactor licensees that had
permanently shut down and defueled were not considered within the scope
of that rulemaking effort. This is because the scope of activities at a
facility undergoing decommissioning is much less likely to create a
public health and safety concern due to the significantly reduced risk
of a radiological event.
a. Should any of the fatigue management requirements of 10 CFR part
26, subpart I, apply to a permanently shut down and defueled reactor?
If so, which ones?
b. Based on the lower risk of an offsite radiological release from
a decommissioning reactor, compared to an operating reactor, should
only specific classes of workers, as identified in Sec. 26.4(a)
through (c), be subject to fatigue management requirements (e.g.,
security officers or certified fuel handlers)? Please provide what
classes of workers should be subject to the requirements and a
justification for their inclusion.
c. Should the fatigue management requirements of 10 CFR part 26,
subpart I, continue to apply to the specific classes of workers
identified in response to question b above, for a specified period of
time (e.g., until a specified decay heat level is reached within the
SFP, or until all fuel is in dry storage)? Please provide what period
of time workers would be subject to the requirements and the
justification for the timing.
d. Should an alternate approach to fatigue management be developed
commensurate with the plant's lower risk profile? Please provide a
discussion of the alternate approach and how the measures would
adequately manage fatigue for workers.
D. Questions Related to Training Requirements of Certified Fuel
Handlers for Decommissioning Power Reactor Licensees
Reactor operators are licensed under 10 CFR part 55 to manipulate
the controls of operating power reactors. The regulations at Sec. 55.4
define ``controls'' to mean, ``when used with respect to a nuclear
reactor . . . apparatus and mechanisms the manipulation of which
directly affects the reactivity or power level of the reactor.''
``Controls'' are not relevant at decommissioning reactors because the
reactors are permanently shutdown and defueled and no longer authorized
to load fuel into the reactor vessel. Consequently, without fuel in the
reactor vessel, decommissioning reactors are in a configuration in
which the reactivity or power level of the reactor is no longer
meaningful and there are no conditions where the manipulation of
apparatus or mechanisms can affect the reactivity or power level of the
reactor. Therefore, licensed operators are not required at
decommissioning reactors. The NRC regulations do not explicitly state
the staffing alternative for licensed operators after a reactor has
permanently shutdown and defueled under Sec. 50.82(a)(1). When
licensees permanently shut down their reactors, they must continue to
meet minimum staffing requirements in technical specifications and
regulatory required programs (e.g., emergency response organizations,
fire brigade, security, etc.). Given the reduced risk of a radiological
incident once the certifications of permanent cessation of operation
and permanent removal of fuel from the reactor vessel have been
submitted, licensees typically transition their operating staff to a
decommissioning organization. This transition includes replacing
licensed operators with CFHs as the on-shift management representative
responsible for supervising and directing the monitoring, storage,
handling, and cooling of irradiated nuclear fuel in a manner consistent
with ensuring the health and safety of the public. Regulations in Sec.
50.2 define a CFH for a nuclear power reactor as a non-licensed
operator who has qualified in accordance with a fuel handler training
program approved by the Commission. The transition to the use of CFHs
from licensed operators at decommissioning reactors occurs following
the NRC's
[[Page 72366]]
approval of a licensee's CFH training program and an amendment to the
administrative and organization section of the licensee's defueled
technical specifications.
However, the NRC regulations do not contain criteria for an
acceptable CFH training program. Because of the reduced risks and
relative simplicity of the systems needed for safe storage of the spent
fuel, the Commission stated in the 1996 decommissioning final rule that
``[t]he degree of regulatory oversight required for a nuclear power
reactor during its decommissioning stage is considerably less than that
required for the facility during its operating stage'' (61 FR 39278).
In the proposed rule, the Commission also provided insights as to the
responsibilities of the CFH position. Specifically, the CFHs are needed
at decommissioning reactors to ensure that emergency action decisions
necessary to protect the public health and safety are made by an
individual who has both the requisite knowledge and plant experience
(60 FR 37374, 37379).
In previous evaluations of licensee CFH training programs (ADAMS
Accession Nos. ML14104A046, ML13268A165), the NRC has determined that
an acceptable CFH training program should ensure that the trained
individual has requisite knowledge and experience in spent fuel
handling and storage and reactor decommissioning, and is capable of
evaluating plant conditions and exercising prudent judgment for
emergency action decisions. In addition, since the CFH is defined as a
non-licensed operator, the NRC staff has also evaluated the CFH
training program in accordance with Sec. 50.120, which includes a
requirement in Sec. 50.120(b)(2) that the training program must be
derived from a systems approach to training as defined in Sec. 55.4.
However, as previously noted, the specific training requirements
for the CFH program are not in the regulations. In addition, Sec.
50.120 specifies the training and qualification requirements for non-
licensed reactor personnel but does not address the CFH staffing
position. Because the regulations are silent on the training attributes
of the CFH, regulatory uncertainty regarding the CFH training program
exists. In addition, because the NRC's regulations do not address the
replacement of licensed operators by CFHs, licensees also have
questions regarding the transition from licensed operator training
programs to CFHs' training programs. The questions on CFH have been
listed in this document using the acronym ``CFH'' and sequential
numbers.
CFH-1: Based on the NRC's experience with the review of the CFH
training/retraining programs submitted by licensees that have recently
permanently shutdown, the following questions are focused on areas that
may need additional clarity. Specifically:
a. When should licensees that are planning to enter decommissioning
submit requests for approval of CFH training/retraining programs?
b. What training and qualifications should be required for
operations staff at power reactors that decommission earlier than
expected and that do not have an approved CFH training/retraining
program?
c. Should the NRC issue new requirements that prohibit licensees
from surrendering operators' licenses before implementation of an
approved CFH training/retraining program, or should other incentives or
deterrents be considered? If so, what factors must be included?
d. Should the contents of a CFH training/retraining program be
standardized throughout the industry? If so, how should this be
implemented?
e. Should a process be implemented that requires decommissioning
power reactor licensees to independently manage the specific content of
their CFH training/retraining program based on the systems and
processes actually used at each particular plant instead of
standardization? If so, how should this work?
f. Is there any existing or developing document or program (from
the Institute of Nuclear Power Operations, NEI, NRC, or other related
sources) that provides relevant guidance on the content and format of a
CFH training/retraining program that could be made applicable to CFH
training?
g. Should the requirements for CFH training programs be
incorporated into an overall decommissioning rule, or addressed using
other regulatory vehicles such as associated NUREGs, regulatory guides,
standard review plan chapters or sections, and inspection procedures?
E. Questions Related to the Current Regulatory Approach for
Decommissioning Power Reactor Licensees
In the SRM to SECY-15-0014, the Commission directed the staff to
determine the appropriateness of (1) maintaining the three existing
options for decommissioning and the timeframes associated with those
options, and (2) address the appropriate role of State and local
governments and non-governmental stakeholders in the decommissioning
process. Based on the Commission's direction, the NRC staff is seeking
additional information on the need for any regulatory changes
concerning the use of decommissioning options, the timeframe to
complete decommissioning, and the role of external stakeholders in the
decommissioning process. The questions on regulatory approach (REG)
have been listed in this document using the acronym ``REG'' and
sequential numbers.
REG-1: The NRC has evaluated the environmental impacts of three
general methods for decommissioning power reactor facilities, DECON,
SAFSTOR, or ENTOMB, as described in Section II.A, footnote 1 of this
document. The choice of the decommissioning method is left entirely to
the licensee, provided that the decommissioning method can be performed
in accordance with NRC's regulations. The NRC would require the
licensee to re-evaluate its decision on the method of the
decommissioning process that it chose if it (1) could not be completed
as described, (2) could not be completed within 60 years of the
permanent cessation of plant operations, (3) included activities that
would endanger the health and safety of the public by being outside of
the NRC's health and safety regulations, or (4) would result in a
significant impact to the environment. The licensee's choice is
communicated to the NRC and the public in the PSDAR. To date, most
utilities have used DECON or SAFSTOR to decommission reactors. Several
sites have performed some incremental decontamination and dismantlement
during the storage period of SAFSTOR, a combination of SAFSTOR and
DECON as personnel, money, or other factors become available. No
utilities have used the ENTOMB option for a commercial nuclear power
reactor.
a. Should the current options for decommissioning--DECON, SAFSTOR,
and ENTOMB--be explicitly addressed and defined in the regulations
instead of solely in guidance documents, and how so?
b. Should other options for decommissioning be explored? If so,
what other technical or programmatic options are reasonable and what
type of supporting documents would be most effective for providing
guidance on these new options or requirements?
c. The NRC regulations state that decommissioning must be completed
within 60 years of permanent cessation of operations. A duration of 60
years was chosen because it roughly corresponds to 10 half-lives for
cobalt-60, one of the predominant isotopes remaining in the facility.
By 60 years, the initial short-lived isotopes,
[[Page 72367]]
including cobalt-60, will have decayed to background levels. In
addition, the 60-year period appears to be reasonable from the
standpoint of expecting institutional controls to be maintained.
Completion of decommissioning beyond 60 years will be approved by the
NRC only when necessary to protect public health and safety. Should the
requirements be changed so that the timeframe for decommissioning is
something other than the current 60-year limit? Would this change be
dependent on the method of decommissioning chosen, site specific
characteristics, or some other combination of factors? If so, please
describe.
REG-2: In support of decommissioning planning for a permanently
shut down and defueled power reactor, the licensee submits to the NRC a
PSDAR that: (1) Informs the public of the licensee's planned
decommissioning activities; (2) assists in the scheduling of NRC
resources necessary for the appropriate oversight activities; (3)
ensures that the licensee has considered the costs of the planned
decommissioning activities and has funding for the decommissioning
process; and (4) ensures that the environmental impacts of the planned
decommissioning activities are bounded by those considered in existing
environmental impact statements. After receiving a PSDAR, the NRC
publishes a notice of receipt, makes the PSDAR available for public
review and comment, and holds a public meeting in the vicinity of the
plant to discuss the licensee's plans and address the public's
comments. Although the NRC will determine if the information is
consistent with the regulations, NRC approval of the PSDAR is not
required. However, should the NRC determine that the informational
requirements of the regulations are not met in the PSDAR, the NRC will
inform the licensee, in writing, of the deficiencies and require that
they be addressed before the licensee initiates any major
decommissioning activities. Any decommissioning activities that could
preclude release of the site for possible unrestricted use, impact a
reasonable assurance finding that adequate funds will be available for
decommissioning, or potentially result in a significant environmental
impact not previously reviewed, must receive prior NRC approval.
Specifically, the licensee is required to submit a license amendment
request for NRC review and approval, which provides an opportunity for
public comment and/or a public hearing. Unless the NRC staff approves
the license amendment request, the licensee is not to conduct the
requested activity. Consistent with Commission direction, the NRC staff
is seeking comment on the appropriate role for the NRC in reviewing and
approving the licensee's proposed decommissioning strategy and
associated planning activities.
a. Is the content and level of detail currently required for the
licensee's PSDAR, adequate? If not, what should be added or removed to
enhance the document?
b. Should the regulations be amended to require NRC review and
approval of the PSDAR before allowing any ``major decommissioning
activity,'' as that term is defined in Sec. 50.2, to commence? What
value would this add to the decommissioning process?
REG-3: The NRC's regulations currently offer the public
opportunities to review and provide comments on the decommissioning
process. Specifically, under the NRC's regulations in Sec. 50.82, the
NRC is required to publish a notice of the receipt of the licensee's
PSDAR, make the PSDAR available for public comment, schedule separate
meetings in the vicinity of the location of the licensed facility to
discuss the PSDAR within 60 days of receipt, and publish a notice of
the meetings in the Federal Register and another forum readily
accessible to individuals in the vicinity of the site. For many years,
the NRC has strongly recommended that licensees involved in
decommissioning activities form a community committee to obtain local
citizen views and concerns regarding the decommissioning process and
spent fuel storage issues. It has been the NRC's view that those
licensees who actively engage the community maintain better relations
with the local citizens. The NRC's guidance related to creating a site-
specific community advisory board can be found in NUREG-1757,
``Consolidated Decommissioning Guidance,'' Appendix M, ``Overview of
the Restricted Use and Alternate Criteria Provisions of 10 CFR part 20,
subpart E,'' Section M.6 (ADAMS Accession No. ML063000243). Appendix M
does not require licensees to create a community advisory board, but
only provides recommendations for methods of soliciting public advice.
Nonetheless, Section M.6 contains useful guidance and suggestions for
effective public involvement in the decommissioning process that could
be adopted by any licensee.
a. Should the current role of the States, members of the public, or
other stakeholders in the decommissioning process be expanded or
enhanced, and how so?
b. Should the current role of the States, members of the public, or
other stakeholders in the decommissioning process for non-radiological
areas be expanded or enhanced, and how so? Currently, for all non-
radiological effluents created during the decommissioning process,
licensees are required to comply with EPA or State regulations related
to liquid effluent discharges to bodies of water.
c. For most decommissioning sites, the State and local governments
are involved in an advisory capacity, often as part of a Community
Engagement Panel or other organization aimed at fostering communication
and information exchange between the licensee and the public. Should
the NRC's regulations mandate the formation of these advisory panels?
F. Questions Related to the Application of Backfitting Protection to
Decommissioning Power Reactor Licensees
In the SRM to SECY-98-253, ``Applicability of Plant-Specific
Backfit Requirements to Plants Undergoing Decommissioning,'' dated
February 12, 1999 (ADAMS Accession No. ML12311A689), the Commission
approved development of a Backfit Rule for plants undergoing
decommissioning. The Commission directed the staff to continue to apply
the then-current Backfit Rule to plants undergoing decommissioning
until the final rule was issued. The Commission ordered the development
of a rulemaking plan, which became SECY-00-0145. In SECY-00-0145, the
staff proposed amendments to Sec. 50.109 to clearly show that the
Backfit Rule applies during decommissioning and to remove factors that
are not applicable to nuclear power plants in decommissioning. As
explained in section II.A of this document, that rulemaking never
occurred, but the Commission, in SRM-SECY-14-0118, directed the staff
to proceed with a rulemaking that addresses, among other things, the
issues discussed in SECY-00-0145.
The questions on backfitting protection (BFP) have been listed in
this document using the acronym ``BFP'' and sequential numbers.
BFP-1: The protections provided by the backfitting and issue
finality provisions in 10 CFR parts 50 and 52, respectively, can apply
to a holder of a nuclear power reactor license when the reactor is in
decommissioning. Backfitting and issue finality during decommissioning
can be divided into two areas:
a. When a licensee's licensing basis for operations continues to
apply during
[[Page 72368]]
decommissioning until: (1) The licensee changes the licensing basis,
(2) the NRC's regulations set forth generic criteria delineating when
changes can be made to the licensing basis, or (3) the NRC takes a
facility-specific action that changes the licensee's licensing basis.
Why would backfitting protection apply in this area?
b. When a licensee engages in an activity during decommissioning
for which no prior NRC approval was provided. The activity could be
required by an NRC regulation or new NRC approval (through an order or
licensing action). Why would backfitting protection apply in this area?
BFP-2: Should the NRC propose amendments to Sec. 50.109 consistent
with the preliminary amendments proposed in SECY-00-0145 that would
have created a two-section Backfit Rule: one section that would apply
to nuclear power plants undergoing decommissioning and the other
section that would apply to operating reactors?
G. Questions Related to Decommissioning Trust Funds
The questions on decommissioning trust fund (DTF) have been listed
in this document using the acronym ``DTF'' and sequential numbers.
DTF-1: The Commission's regulation at Sec. 50.75 includes the
reporting requirements for providing reasonable assurance that
sufficient funds will be available for the decommissioning process. The
regulation at Sec. 50.82 contains, in part, requirements on the use of
decommissioning funds. Every 2 years each operating power reactor
licensee must report to the NRC the status of the licensee's
decommissioning funding to provide assurance to the NRC that the
licensee will have sufficient financial resources to accomplish
radiological decommissioning. After decommissioning has begun,
licensees must annually submit a financial assurance status report to
the NRC.
The NRC's authority is limited to assuring that licensees
adequately decommission their facilities with respect to cleanup and
removal of radioactive material prior to license termination.
Activities that go beyond the scope of decommissioning, as defined in
Sec. 50.2, such as waste generated during operations or demolition
costs for greenfield restoration, are not appropriate costs for
inclusion in the decommissioning cost estimate. The collection of funds
for spent fuel management is addressed in Sec. 50.54(bb) where it
indicates that licensees need to have a plan, including financing, for
spent fuel management.
The NRC has not precluded the commingling of the funds in a single
trust fund account to address radiological decommissioning, spent fuel
management, and site restoration, as long as the licensee is able to
identify and account for these specific funds. In the 1996
decommissioning rule, the Commission indicated that the rule ``does not
prohibit licensees from having separate subaccounts for other
activities in the decommissioning trust fund if minimum amounts
specified in the rule are maintained for radiological
decommissioning.'' Similarly, in the 2002 Decommissioning Trust
Provisions Rule, the Commission stated that it ``appreciates the
benefits that some licensees may derive from their use of a single
trust fund for all of their decommissioning costs, both radiological
and not; but, as stated above, a licensee must be able to identify the
individual amounts contained within its single trust. Therefore, where
a licensee has not separately identified and accounted for expenses
related to non-radiological decommissioning in its DTF, licensees are
required to request exemptions from Sec. 50.82(a)(8)(i)(A) and either
Sec. 50.75(h)(1)(iv) or Sec. 50.75(h)(2), to gain access to monies in
the decommissioning trust fund for purposes other than decommissioning
(e.g., spent fuel management). The NRC has approved exemptions from the
requirements of Sec. Sec. 50.82 and 50.75 allowing withdrawals to be
made from decommissioning trust funds for spent fuel management in
instances where the level of funding needed to complete decommissioning
is not adversely affected. In each instance, the NRC found, pursuant to
Sec. 50.12, the exemptions were authorized by law, presented no undue
risk to public health and safety, and were consistent with the common
defense and security, and found that the application of the rules was
unnecessary to achieve the underlying purpose of the rules.
In some cases, a licensee will not need an exemption. Those cases
exist when a licensee can clearly show that (1) its decommissioning
trust includes State-required funds and (2) the amount of radiological
decommissioning funds in the trust exceeds the amount of money
estimated to be needed for radiological decommissioning in the
licensee's site specific decommissioning cost estimate (or if the
licensee does not have a site specific decommissioning cost estimate
yet, then the minimum amount necessary to provide financial assurance
under Sec. 50.75). If the licensee meets these criteria, then
reasonable assurance of adequate radiological decommissioning funding
still exists after removal of the State-required funds, and the
licensee does not need an exemption to use those State-required funds.
The NRC issued Regulatory Issue Summary (RIS) 2001-07, Revision 1,
``10 CFR 50.75 Reporting and Recordkeeping for Decommissioning
Planning,'' on January 8, 2009 (ADAMS Accession No. ML083440158), to
clarify the need for licensees to preserve the distinction in their
decommissioning trust accounts between the radiological decommissioning
fund balance and amounts accumulated for other purposes, such as paying
for spent fuel management and site restoration, when using the trust
for commingled funds. However, based on NRC experience with the power
reactors that have recently and permanently shut down and entered into
decommissioning, licensees continue to report funds they have
accumulated to address spent fuel management and site restoration as
part of the amount of funds reported for radiological decommissioning.
Should the regulations in Sec. Sec. 50.75 and 50.82 be revised to
clarify the collection, reporting, and accounting of commingled funds
in the decommissioning trust fund, that is in excess of the amount
required for radiological decommissioning and that has been designated
for other purposes, in order to preclude the need to obtain exemptions
for access to the excess monies?
DTF-2: The regulation at Sec. 50.82(a)(8)(i)(A) states that
decommissioning trust funds may only be used by licensees if their
withdrawals ``are for expenses for legitimate decommissioning
activities consistent with the definition of decommissioning in Sec.
50.2.'' In accordance with Sec. 50.2, decommission means to remove a
nuclear facility or site safely from service and reduce residual
radioactivity to a level that permits: (1) Release of the property for
unrestricted use and termination of the license; or (2) release of the
property under restricted conditions and termination of the NRC
license. Thus, ``legitimate decommissioning activities'' include only
those activities whose expenses are related to removing a nuclear
facility or site safely from service and reducing residual
radioactivity to a level that permits license termination and release
of the property for restricted or unrestricted use.
While the regulations are silent with regards to what specific
expenses are related to legitimate decommissioning
[[Page 72369]]
activities, the NRC's guidance documents identify some specific
expenses that may or may not be paid from the decommissioning trust
fund. For example, Regulatory Guide (RG) 1.184, Revision 1,
``Decommissioning of Nuclear Power Reactors'' (ADAMS Accession No.
ML13144A840), states that the amount set aside for radiological
decommissioning as required by Sec. 50.75 ``should not be used for:
(1) The maintenance and storage of spent fuel in the spent fuel pool,
(2) the design, construction, or decommissioning of spent fuel dry
storage facilities directly related to permanent disposal, (3) other
activities not directly related to radiological decontamination or
dismantlement of the facility or site.'' Similarly, other NRC guidance
explain that the NRC's definition of decommissioning does not include
other activities related to facility deactivation and site closure,
including operation of the spent fuel storage pool, construction and/or
operation of an ISFSI, demolition of decontaminated structures, and/or
site restoration activities after residual radioactivity has been
removed. The NRC also has additional guidance that states that removing
uncontaminated material, such as soil or a wall, to gain access to
contamination to be removed would be a legitimate decommissioning cost.
Finally, guidance also exists that provides examples of activities
outside the scope of decommissioning including, ``(1) the maintenance
and storage of spent fuel, (2) the design and/or construction of a
spent fuel dry storage facility, (3) activities that are not directly
related to supporting long-term storage of the facility, or (4) any
other activities not directly related to radiological decontamination
of the site.''
a. What changes should be considered for Sec. Sec. 50.2 and
50.82(a)(8) to clarify what constitutes a legitimate decommissioning
activity?
b. Regulations in Sec. 50.82(8)(ii) states that 3 percent of the
decommissioning funds may be used during the initial stages of
decommissioning for decommissioning planning activities. What should be
included or specifically excluded in the definition of
``decommissioning planning activities?''
H. Questions Related to Offsite Liability Protection Insurance
Requirements for Decommissioning Power Reactor Licensees
The questions on offsite liability protection insurance (LPI) have
been listed in this document using the acronym ``LPI'' and sequential
numbers.
LPI-1: The Price Anderson Act of 1957 (PAA) requires that nuclear
power reactor licensees have insurance to compensate the public for
damages arising from a nuclear incident, including such expenses as
those for personal injury, property damage, or the legal cost
associated with lawsuits. Regulations in 10 CFR part 140, ``Amounts of
Financial Protection for Certain Reactors,'' set forth the amounts of
insurance each power reactor licensee must have. Specifically, Sec.
140.11(a)(4) requires a reactor licensee to maintain $375 million in
offsite liability insurance coverage. In addition, the primary
insurance is supplemented by a secondary insurance tier. In the event
of an accident causing offsite damages in excess of $375 million, each
licensee would be assessed a prorated share of the excess damages, up
to $121.3 million per reactor, for a total of approximately $13
billion.
Regulations in Sec. 140.11(a)(4) do not distinguish between a
reactor that is authorized to operate and a reactor that has
permanently shut down and defueled. Most of the accident scenarios
postulated for operating power reactors involve failures or
malfunctions of systems that could affect the fuel in the reactor core,
which in the most severe postulated accidents, would involve the
release of large quantities of fission products. With the permanent
cessation of reactor operations and the permanent removal of the fuel
from the reactor core, such reactor accidents are no longer possible
with a decommissioning reactor.
The PAA requires licensees of facilities with a rated capacity of
100,000 electrical kilowatts or more to have the primary and secondary
insurance coverage described above, which the NRC establishes in 10 CFR
part 140. Typically, the NRC will issue a decommissioning licensee a
license amendment to remove the rated capacity of the reactor from the
license. This has the effect of removing the reactor licensee from the
category of licensees that are required to maintain the primary and
secondary insurance amounts under the PAA and 10 CFR part 140.
Most permanently shut down and defueled power reactor licensees
have requested exemptions from Sec. 140.11(a)(4) to reduce the
required amount of primary offsite liability insurance coverage from
$375 million to $100 million and to withdraw from the secondary
insurance pool. As noted above, these licensees are no longer within
the category of licensees that are legally required under the PAA to
have these amounts of offsite liability insurance. The technical
criteria for granting these exemptions are based on the determination
that there are no possible design-basis events at a licensee's facility
that could result in an offsite radiological release exceeding the
limits established by the EPA's early-phase Protective Action
Guidelines of 1 rem at the exclusion area boundary. In addition, the
exemptions are predicated on the licensee demonstrating that the heat
generated by the spent fuel in the SFP has decayed to the point where
the possibility of a zirconium fire is highly unlikely. Specifically,
if all coolant were drained from the SFP as the result of a highly
unlikely beyond design-basis accident, the fuel assemblies would remain
below a temperature of incipient cladding oxidation for zirconium based
on air-cooling alone. For a postulated situation where the cooling
configuration of a highly unlikely beyond design basis accident results
in an unknown cooling configuration of the spent fuel, analysis should
demonstrate that even with no cooling of any kind (conduction,
convection, or radiative heat transfer), the spent fuel stored in the
SFP would not reach the zirconium ignition temperature in fewer than 10
hours starting from the time at which the accident was initiated. The
NRC has considered 10 hours sufficient time to take mitigative actions
to cool the spent fuel. Based on this discussion:
a. Should the NRC codify the current conservative exemption
criteria (i.e., 10 hours to take mitigative actions) that have been
used in granting decommissioning reactor licensees exemptions to Sec.
140.11(a)(4)?
b. As an alternative to codifying the current conservative
exemption criteria (i.e., 10 hours to take mitigative actions), should
the NRC codify a requirement to allow decommissioning reactor licensees
to generate site specific criteria (i.e., time period to take
mitigative actions) based upon a site specific analysis?
c. The use of $100 million for primary liability insurance level is
based on Commission policy and precedent from the early 1990s. The
amount established was a qualitative value to bound the claims from the
Three Mile Island accident. Should this number be adjusted?
d. What other factors should be considered in establishing an
appropriate primary insurance liability level (based on the potential
for damage claims) for a decommissioning plant once the risk of any
kind of offsite radiological release is highly unlikely?
[[Page 72370]]
I. Questions Related to Onsite Damage Protection Insurance Requirements
for Decommissioning Power Reactor Licensees
The questions on onsite damage protection insurance (ODI) have been
listed in this document using the acronym ``ODI'' and sequential
numbers.
ODI-1: The requirements of Sec. 50.54(w)(1) call for each power
reactor licensee to have insurance to provide minimum coverage for each
reactor site of $1.06 billion or whatever amount of insurance is
generally available from private sources, whichever is less. The
insurance would be used, in the event of an accident at the licensee's
reactor, to provide financial resources to stabilize the reactor and
decontaminate the reactor site, if needed.
The requirements in Sec. 50.54(w)(1) do not distinguish between a
reactor authorized to operate and a reactor that has permanently shut
down and defueled. With the permanent cessation of reactor operations
and the permanent removal of the fuel from the reactor core, operating
reactor accidents are no longer possible. Therefore, the need for
onsite insurance at a decommissioning reactor to stabilize accident
conditions or decontaminate the site following an accident, should be
significantly lower compared to the need for insurance at an operating
reactor.
Based on NRC policy and precedent, permanently shut down and
defueled reactor licensees have requested exemptions from Sec.
50.54(w)(1). The exemption granted to a permanently shut down reactor
licensee permits the licensee to reduce the required level of onsite
property damage insurance from the amount established in Sec.
50.54(w)(1) to $50 million. The NRC has previously determined that $50
million bounds the worst radioactive waste contamination event (caused
by a liquid radioactive waste storage tank rupture) once the heat
generated by the spent fuel in the SFP has decayed to the point where
the possibility of a zirconium fire in any beyond design-basis accident
is highly unlikely, and in any case, there is sufficient time to take
mitigative actions. The technical criteria used in assessing the
possibility of a zirconium fire, as discussed in question LPI-1 above,
is also used for exemptions from Sec. 50.54(w)(1). Based on this
discussion:
a. Should the NRC codify the current exemption criteria that have
been used in granting decommissioning reactor licensees exemptions from
Sec. 50.54(w)(1)? If so, describe why.
b. The use of $50 million insurance level for bounding onsite
radiological damages is based on a postulated liquid radioactive waste
storage tank rupture using analyses from the early 1990s. Should this
number be adjusted? If so, describe
c. Is the postulated rupture of a liquid radioactive waste storage
tank an appropriate bounding postulated accident at a decommissioning
reactor site once the possibility of a zirconium fire has been
determined to be highly unlikely?
J. General Questions Related to Decommissioning Power Reactor
Regulations
The general (GEN) questions related to decommissioning power
reactor regulations have been listed in this document using the acronym
``GEN'' and sequential numbers.
GEN-1: Section 50.51, ``Continuation of License,'' states in
paragraph (b)(1) that all permanently shut down and defueled reactor
licensees shall continue to take actions to maintain the facility, and
the storage and control and maintenance of spent fuel, in a safe
condition beyond the license expiration date until the Commission
notifies the licensee in writing that the license is terminated. The
NRC has recently focused on the licensee's maintenance of long lived,
passive structures and components at decommissioning reactors. The NRC
expects that many long-lived, passive structures and components may
generally not have performance and condition characteristics that can
be readily monitored, or could be considered inherently reliable by
licensees and do not need to be monitored under Sec. 50.65(a)(1).
There may be few, if any, actual maintenance activities (e.g.,
inspection or condition monitoring) that a licensee conducts for such
structures and components. Treatment of long-lived, passive structures
and components under the maintenance rule is likely to involve minimal
preventive maintenance or monitoring to maintain functionality of such
structures and components in the original licensing period. The NRC is
interested in the need to provide reasonable assurance that certain
long-lived, passive structures and components (e.g., neutron absorbing
materials, SFP liner) are maintained and monitored during the
decommissioning period while spent fuel is in the SFP.
Based on the discussion above, what regulatory changes should be
considered that address the performance or condition of certain long-
lived, passive structures and components needed to provide reasonable
assurance that they will remain capable of fulfilling their intended
functions during the decommissioning period?
GEN-2: Section 50.54(m) of the NRC's regulations for operating
reactors specifies the minimum licensed operator staffing levels (e.g.,
minimum staffing per shift for licensed operators and senior operators)
for power reactors authorized to operate. The regulations define the
duties of licensed operators as either the manipulation of controls or
supervising the manipulation of controls that directly affect the
reactor reactivity or power level of the reactor. A decommissioning
plant is clearly not operating and no manipulation of controls that
affect reactor reactivity or power can occur at a permanently defueled
reactor. Therefore, the requirements in Sec. 50.54(m) concerning
licensed operator staffing levels for operating reactors are not
applicable to a decommissioning plant. For a decommissioning power
reactor, the senior on-shift management representative is a certified
fuel handler who, as stated in Sec. 50.2, is a non-licensed operator
that has qualified in accordance with a fuel handler training program
approved by the Commission. However, there are no regulatory provisions
similar to Sec. 50.54(m) concerning operator staffing levels for a
power reactor licensee once it has certified that it is permanently
shut down and defueled under Sec. 50.82(a)(1). Because the
decommissioning regulations are silent regarding staffing levels,
licensees have sought amendments in their defueled technical
specifications to specify minimum non-licensed operator staffing. Based
on precedent used at most previous permanently shut down reactors, and
considering the demonstrated safety performance of reactor
decommissioning sites over many years, the NRC has found that an
operations staff crew complement consisting of one certified fuel
handler and one non-certified operator is an acceptable minimum
staffing level.
Considering the discussion above, should minimum operations shift
staffing at a permanently shutdown and defueled reactor be codified by
regulation?
GEN-3: Related to the decommissioning plant operator staffing
levels is the requirement for and the use of a control room during
decommissioning. Section 50.54(m) specifies the control room staffing
requirements for licensed operators at an operating reactor with a
fueled reactor vessel. No such requirements exist for the location of
operations staff at a permanently shutdown and defueled reactor. The
control room at an
[[Page 72371]]
operating reactor contains the controls and instrumentation necessary
for complete supervision and response needed to ensure safe operation
and shutdown of the reactor and support systems during normal, off-
normal, and accident conditions and, therefore, is the location of the
shift command function. Following permanent shutdown and removal of
fuel from the reactor, operation of the reactor is no longer permitted
and the control room no longer performs all of the functions that were
required for an operating reactor. There are no longer any activities
at a permanently shutdown and defueled reactor that require a quick
decision and response by operations staff in the control room. For most
decommissioning reactors, the NRC has approved license amendments to
the technical specifications that require at least one non-licensed
operator to remain in a control room. This technical specification
change is primarily based on precedent. However, the NRC has noted in
the license amendment safety evaluations that the primary functions of
the control room at a permanently shutdown reactor are monitoring,
response, communications, and coordination. Specifically, the control
room at a decommissioning reactor is where many plant systems and
equipment parameters are monitored (for operating status and
conditions, radiation levels, electrical anomalies, or fire alarms for
example). Control room personnel assess plant conditions; evaluate the
magnitude and potential consequences of abnormal conditions; determine
preventative, mitigating and corrective actions; and perform
notifications. The control room provides a central location from where
the shift command function can be conveniently performed because of the
availability of existing monitoring and assessment instrumentation,
communication systems and equipment, office computer equipment, and
ready access to reference material. The control room also provides a
central location from which emergency response activities are
coordinated. When activated, the emergency response organization
reports to the control room.
During reactor decommissioning, the control room may be subject to
extensive changes, which are evaluated by the licensee for safety
implications under the Sec. 50.59 process. There is precedent among
some previous decommissioning reactor licensees to design and construct
a decommissioning control room that is independent of the original
operating control room. Most decommissioning reactors can probably
demonstrate that the command, communications, and monitoring functions
performed in the control room could be readily performed at an
alternate onsite location, based on the site-specific needs of a
licensee during its decommissioning process. Consequently, several
decommissioning licensees have questioned the meaning of the control
room as it relates to decommissioning nuclear power plants.
Based on the discussion above, what regulatory changes should be
considered for a permanently shutdown and defueled reactor to prevent
ambiguities concerning the meaning of the control room for
decommissioning reactors and should minimum staffing levels be
specified for the control room?
GEN-4: Are there any other changes to 10 CFR Chapter I, ``Nuclear
Regulatory Commission,'' that could be clarified or amended to improve
the efficiency and effectiveness of the reactor decommissioning
process?
GEN-5: The NRC is attempting to gather information on the costs and
benefits of the changes in the regulatory areas discussed in this
document as early as possible in the rulemaking process. Given the
topics discussed, please provide estimated costs and benefits of
potential changes in these areas from either the perspective of a
licensee or from the perspective of an external stakeholder.
a. From your perspective, which areas discussed are the most
beneficial or detrimental?
b. From your perspective, assuming you believe changes are needed
to the NRC's reactor decommissioning regulatory infrastructure, what
are the factors that drive the need for changes in these regulatory
areas? If at all possible, please provide specific examples (e.g.,
expected savings, expectations for efficiency, anticipated effects on
safety, etc.) about how these changes will affect you.
c. Are there areas that are of particular interest to you, and for
what reason?
d. Please provide any suggested changes that would further enhance
benefits or reduce risks that may not have been addressed in this ANPR.
VI. Public Meeting
The NRC will conduct a public meeting to discuss the contents of
this ANPR and to answer questions from the public regarding the
contents of this ANPR. The NRC will publish a notice of the location,
time, and agenda of the meeting on the NRC's public meeting Web site 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. In addition, the meeting information will be posted on
www.regulations.gov under Docket ID NRC-2015-0070. For instructions on
how to receive alerts when changes or additions occur in a docket
folder, see Section IX of this document.
VII. Cumulative Effects of Regulation
The NRC has implemented a program to address the possible
Cumulative Effects of Regulation (CER), in the development of
regulatory bases for rulemakings. The CER describes the challenges that
licensees, or other impacted entities (such as State partners) may face
while implementing new regulatory positions, programs, and requirements
(e.g., rules, generic letters, backfits, inspections). The CER is an
organizational effectiveness challenge that results from a licensee or
impacted entity implementing a number of complex positions, programs or
requirements within a limited implementation period and with available
resources (which may include limited available expertise to address a
specific issue). The NRC is specifically requesting comment on the
cumulative effects that may result from this potential rulemaking. In
developing comments on the development of the regulatory basis for
revisions to the requirements for decommissioning power reactor
licensees relative to CER, consider the following questions:
(1) In light of any current or projected CER challenges, what
should be a reasonable effective date, compliance date, or submittal
date(s) from the time the final rule is published to the actual
implementation of any new proposed requirements including changes to
programs, procedures, or the facility?
(2) If current or projected CER challenges exist, what should be
done to address this situation (e.g., if more time is required to
implement the new requirements, what period of time would be
sufficient, and why such a time frame is necessary)?
(3) Do other (NRC or other agency) regulatory actions (e.g.,
orders, generic communications, license amendment requests, and
inspection findings of a generic nature) influence the implementation
of the potential proposed requirements?
(4) Are there unintended consequences? Does the potential proposed
action create conditions that would be contrary to the potential
proposed action's purpose and objectives? If so, what are the
[[Page 72372]]
consequences and how should they be addressed?
(5) Please provide information on the costs and benefits of the
potential proposed action. This information will be used to support any
regulatory analysis performed by the NRC.
VIII. 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.
IX. 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./ Federal
Date Document Register
citation
------------------------------------------------------------------------
May 10, 1993.................. SECY-93-127, ML12257A628.
``Financial
Protection Required
of Licensees of Large
Nuclear Power Plants
during
Decommissioning''.
July 20, 1995................. Proposed Rule: 60 FR 37374.
Decommissioning of
Nuclear Power
Reactors.
July 29, 1996................. Final Rule: 61 FR 39278.
Decommissioning of
Nuclear Power
Reactors.
December 17, 1996............. SECY-96-256, ``Changes ML15062A483.
to Financial
Protection
Requirements for
Permanently Shutdown
Nuclear Power
Reactors, 10 CFR
50.54(w)(1) and
140.11''.
June 30, 1998................. SRM to SECY-98-075, ML003752383.
``DSI-24
Implementation: Risk-
Informed, Performance-
Based Concepts
Applied to
Decommissioning''.
November 4, 1998.............. SECY-98-258, ``DSI-24 ML992870144.
Implementation:
Decommissioning
Licensing Actions and
Priorities and
Milestones for
Addressing Rulemaking
and Guidance
Development''.
February 24, 1999............. SRM to SECY-98-258.... ML003753861.
June 30, 1999................. SECY-99-168, ML992800087.
``Improving
Decommissioning
Regulations for
Nuclear Power
Plants''.
December 21, 1999............. SRM to SECY-99-168.... ML003752190.
June 28, 2000................. SECY-00-0145, ML003721626.
``Integrated
Rulemaking Plan for
Nuclear Power Plant
Decommissioning''.
September 27, 2000............ SRM to SECY-00-0145... ML003754381.
February 2001................. NUREG-1738, ML010430066.
``Technical Study of
Spent Fuel Pool
Accident Risk at
Decommissioning
Nuclear Power
Plants''.
June 4, 2001.................. SECY-01-0100, ``Policy ML011450420.
Issues Related to
Safeguards,
Insurance, and
Emergency
Preparedness
Regulations at
Decommissioning
Nuclear Power Plants
Storing Fuel in Spent
Fuel Pools''.
August 16, 2002............... Memorandum to the ML030550706.
Commission: Status of
Regulatory Exemptions
for Decommissioning
Plants.
September 18, 2002............ SECY-02-0169, ``Annual ML022120432.
Update Status of
Decommissioning
Program''.
February 4, 2010.............. Memorandum to the ML092990438.
Commission,
``Documentation of
Evolution of Security
Requirements at
Commercial Nuclear
Power Plants with
Respect to Mitigation
Measures for Large
Fires and
Explosions''.
December 2006................. NEI-06-12, ``B.5.b. ML070090060.
Phase 2 & 3 Submittal
Guideline, Revision
2''.
December 22, 2006............. Response to December Non-publicly
14, 2006 request to available.
endorse NEI 06-12,
``B.5.b Phase 2& 3
Submittal Guideline''.
August 8, 2008................ The Attorney General 73 FR 46204.
of Commonwealth of
Massachusetts, the
Attorney General of
California; Denial of
Petitions for
Rulemaking.
November 12, 2013............. COMSECY-13-0030, ML13329A918.
``Staff Evaluation
and Recommendation
for Japan Lessons-
Learned Tier 3 Issue
on Expedited Transfer
of Fuel''.
September 2014................ NUREG-2161, ML14255A365.
``Consequence Study
of a Beyond-Design-
Basis Earthquake
Affecting the Spent
Fuel Pool for a U.S.
Mark I Boiling Water
Reactor''.
November 14, 2014............. IN-2014-14, ML14218A493.
``Potential Safety
Enhancements to Spent
Fuel Storage''.
December 30, 2014............. SRM to SECY-14-0118, ML14364A111.
``Request by Duke
Energy Florida, Inc.,
for Exemptions from
Certain Emergency
Planning
Requirements''.
January 30, 2015.............. SECY-15-0014, ML15082A089.
``Anticipated
Schedule and
Estimated Resources
for a Power Reactor
Decommissioning
Rulemaking''.
December 23, 2013............. NSIR/DPR-ISG-02, ML13304B442.
``Emergency Planning
Exemption Requests
for Decommissioning
Nuclear Power
Plants''.
November 25, 2014............. NSIR/DSP-ISG-03, ML14294A170.
``Review of Security
Exemptions/License
Amendment Requests
for Decommissioning
Nuclear Power
Plants''.
November 10, 2011............. Letter Endorsing NEI ML112800379.
03-12, Revision 7.
March 2009.................... RG 5.77, ``Insider Non-publicly
Mitigation Program''. available.
March 31, 2008................ Final Rule: ``Fitness 73 FR 16966.
for Duty Programs''.
March 12, 2012................ Order EA-12-051, ML12054A679.
``Issuance of Order
to Modify Licenses
with Regard to
Reliable Spent Fuel
Pool
Instrumentation''.
March 12, 2012................ Order EA-12-049, ML12054A734.
``Issuance of Order
to Modify Licenses
with Regard to
Requirements for
Mitigation Strategies
for Beyond-Design-
Basis External
Events''.
[[Page 72373]]
October 7, 2015............... SECY-15-0127, Non-publicly
``Schedule, Resource available.
Estimates, and
Impacts for the Power
Reactor
Decommissioning
Rulemaking''.
------------------------------------------------------------------------
The NRC may post additional materials to the Federal rulemaking Web
site at www.regulations.gov, under Docket NRC-2015-0070. 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
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monthly).
X. Rulemaking Process
The NRC does not intend to provide detailed comment responses for
information provided in response to this ANPR. The NRC will consider
comments on this ANPR in the rule development process. If the NRC
develops a regulatory basis sufficient to support a proposed rule,
there will be an opportunity for additional public comment when the
draft regulatory basis and the proposed rule are published. If
supporting guidance is developed for the proposed rule, stakeholders
will have an opportunity to provide feedback on the guidance as well.
Alternatively, if the regulatory basis does not provide sufficient
support for a proposed rule, the NRC will publish a Federal Register
notice withdrawing this ANPR and summarizing the public comments
received on this ANPR.
Dated at Rockville, Maryland, this 6th day of November 2015.
For the U.S. Nuclear Regulatory Commission.
Frederick D. Brown,
Acting Executive Director for Operations.
[FR Doc. 2015-29536 Filed 11-18-15; 8:45 am]
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