POLICY ISSUE 

NOTATION VOTE 

January 31, 2014 SECY-14-0016

FOR: The Commissioners 

FROM: Mark A. Satorius 

Executive Director for Operations 

SUBJECT: ONGOING STAFF ACTIVITIES TO ASSESS REGULATORY 

CONSIDERATIONS FOR POWER REACTOR SUBSEQUENT 

LICENSE RENEWAL 

PURPOSE: 

The purpose of this paper is to inform the Commission of ongoing staff activities to prepare for 

the anticipated receipt and review of subsequent license renewal applications that, if approved, 

could extend operation of power reactors beyond 60 years. The paper also requests 

Commission approval to initiate the rulemaking process to update the regulatory framework in 

Title 10 of the Code of Federal Regulations (10 CFR) Part 54, “Requirements for Renewal of 

Operating Licenses for Nuclear Power Plants,” to prepare for subsequent power reactor license 

renewal applications. This paper does not address any new commitments or specific 

rulemaking proposals. 

SUMMARY: 

The staff has begun a regulatory framework and technical justification review of the operating 

power reactor license renewal process to be prepared for anticipated subsequent license 

renewal applications that will request approval to renew a facility’s operating license beyond 

60 years. The staff believes the license renewal process and regulations are sound and can 

support subsequent license renewal; however, the staff has identified several areas that should 

be modified in the existing rule to allow for a more predictable review process. These changes 

are presented in this paper in four options. Option 1 proposes no changes to the existing 

CONTACTS: Araceli T. Billoch Colón, NRR/DLR 

301-415-3302 

William Burton, NRR/DLR 

301-415-6332 

SECY NOTE: THIS SECY PAPER, WITH THE EXCEPTION OF ENCLOSURE 3 WILL BE 

RELEASED TO THE PUBLIC IN 10 WORKING DAYS. 
The Commissioners - 2 - 

regulations. Option 2 recommends minor editorial changes to 10 CFR Part 54 to add alternate 

fracture toughness requirements and clarify how existing recordkeeping requirements apply to 

newly identified systems, structures, and components. Option 3, which includes Option 2, 

recommends an expansion in scope of 10 CFR Part 54 to include equipment associated with 10 

CFR 50.54(hh)(2) and adds a provision to address timely renewal so that a licensee must 

implement aging-management activities before the expiration of its current license. Option 4, 

which includes Options 2 and 3, recommends additional considerations to address lessons 

learned from the first license renewal reviews. Specifically, this option involves the exploration 

of potential requirements to assess the timing of submittal of applications for subsequent license 

renewal and the effectiveness of aging-management activities and operating experience. This 

option also discusses how the assessment of issues related to the Japan Lessons-Learned 

Project Directorate (JLD) will be coordinated with reviews of subsequent license renewal 

applications. 

The staff recommends Option 4, which also includes the implementation of Options 2 and 3, to 

enhance the agency’s readiness to conduct subsequent license renewal reviews effectively and 

efficiently. This paper does not include an expansive discussion of the requirement proposed in 

Option 4, since such details would be developed as part of the public rulemaking process. 

Commission approval of the staff’s recommendations would allow the staff to proceed with such 

effort. 

During the development of this paper, a non-concurrence was filed to request an option that 

requires applicants to upgrade their plants’ probabilistic risk assessment (PRA) as part of the 

applications for subsequent license renewal. As discussed in a later section of this paper, the 

staff ultimately did not include the option to require PRA updates because the issue was not 

shown to be uniquely relevant to operation during the renewal term as explained in the 1995 

statements of consideration (SOC) for 10 CFR Part 54. In addition, as discussed in the 1995 

SOC, the existing rule allows for license renewal applicants to risk-inform their agingmanagement activities and is consistent with the Commission Policy Statement on use of PRA. 

BACKGROUND: 

The staff has renewed 73 reactor operating licenses to date, with another 18 units currently 

under review. The first license renewal application was submitted to the U.S. Nuclear 

Regulatory Commission (NRC) in April 1998, and the last application for a first renewal is 

scheduled to be submitted in 2018. Of those units with a renewed license, as of December 31, 

2013, 20 units have entered the period of extended operation (i.e., for operation from 40 to 60 

years). The existing license renewal review process follows the guidance established in 

NUREG-1800, “Standard Review Plan for Review of License Renewal Applications for Nuclear 

Power Plants” (SRP-LR) (Agencywide Documents Access and Management System (ADAMS) 

Accession No. ML012070413). The SRP-LR references NUREG-1801, “Generic Aging 

Lessons Learned (GALL) Report” (ADAMS Accession No. ML012060392) which documents the 

staff’s generic basis for determining the adequacy of the existing aging-management programs 

(AMPs), the existing AMPs that should be augmented for license renewal, and the areas that 

require new AMPs, along with information related to the results of aging-management reviews 

and time-limited aging analyses (TLAAs). The GALL Report and the SRP-LR have been 

revised on two occasions based on the experience gained by the staff through the review of 

license renewal applications, and may be further revised as needed in the future. 
The Commissioners - 3 - 

The staff also conducts an environmental review during the license renewal review process 

following the guidance in NUREG-1437, “Generic Environmental Impact Statement for License 

Renewal of Nuclear Plants” (hereinafter referred to as “GEIS,” ADAMS Accession Nos. 

ML13106A241, ML13106A242, and ML13106A244). The GEIS describes the most common 

environmental impacts to nuclear power facilities and allows applicants and the NRC to focus on 

important environmental issues specific to each site pursuing license renewal. The staff revised 

the GEIS in June 2013, and believes that the update is adequate for a future subsequent 

license renewal application. 

 

Based on discussions with the nuclear industry, the staff believes the first application for 

subsequent license renewal may be submitted as early as 2017. To support such an 

application, the nuclear industry must provide the necessary technical basis, along with the 

associated research and engineering activities, to justify long-term operation. The staff is 

currently performing confirmatory reviews of relevant technical issues for long-term operation 

and will summarize these efforts in several research reports. The staff has also evaluated the 

experience gained during the reviews of applications for the initial license renewal period to 

propose modifications to the existing regulatory infrastructure in order to enhance the efficiency 

and effectiveness of future reviews of applications for subsequent license renewal, as described 

below. Additional information on the background and history of license renewal, including the 

basis of existing requirements and the use of generic guidance, along with a discussion of the 

technical considerations for subsequent license renewal, can be found in Enclosure 1. 

DISCUSSION: 

To prepare for the anticipated subsequent license renewal applications, the staff has been 

reviewing the existing rule and associated guidance to determine the appropriate subsequent 

license renewal framework. This process has included an extensive review of the technical 

issues associated with subsequent license renewal, as well as the current license renewal 

regulatory framework. Implementation of the subsequent license renewal framework will include 

developing the subsequent license renewal rule changes and drafting the guidance for 

subsequent license renewal, including the following: 

• updates or revisions to NUREG-1801, “GALL Report”; 

• NUREG-1800, “SRP-LR”; and 

• regulatory guides, inspection procedures, and any necessary guidance associated with 

any approved rule changes. 

In fiscal year (FY) 2015, the staff will publish for public comment a draft of the GALL Report and 

the SRP-LR for subsequent license renewal. Following the public comment period, the final 

guidance documents, along with the associated technical bases for the changes, will be 

published in FY 2016 to support an anticipated application in 2017. In addition to the necessary 

guidance updates, which are needed whether or not the rule is changed and regardless of the 

option selected by the Commission, the staff has identified several areas where rule changes 

are warranted, as highlighted below. To allow adequate public involvement and to be prepared 

for an application in 2017, the staff is requesting Commission approval to begin the rulemaking 

process in the near term. Both the technical guidance and the proposed regulation changes will 
The Commissioners - 4 - 

require public interaction and agency resources. Additional details on the planned staff effort 

and the efforts completed to date can be found in Enclosure 1. 

Regulatory Framework Considerations for Subsequent License Renewal

In anticipation of subsequent license renewal applications, the staff undertook a comprehensive 

review of the bases and assumptions for the original (see Federal Register (FR) notice 56 FR 

64943; December 13, 1991) and amended (60 FR 22461; May 8, 1995) license renewal rule in 

10 CFR Part 54. Although the staff’s review was initiated in preparation for anticipated 

subsequent license renewal applications, the staff used the opportunity to conduct a review of 

the entire license renewal process, building on lessons learned and experience gained during 

the first license renewal period. The documents reviewed included the SOC for the 1991 rule 

and the 1995 amendment, the regulatory analyses, the analyses of public comments, previously 

issued Commission papers, and staff requirements memoranda. The staff also assessed the 

lessons learned from the review and implementation of AMPs. Categories of items considered 

during this review included, but were not limited to, the following: 

• the need to verify whether certain design input parameters have changed over time and 

what impact these changes might have on the current licensing basis (CLB); 

• use of PRA to risk-inform scoping and management of aging effects; 

• the scope of the rule and whether or not aging-management should continue to focus on 

“long-lived,” passive components;

• insights from international periodic safety reviews (PSRs); 

• management of license renewal programs during the period of extended operation 

(i.e., operation beyond 40 years); 

• the duration of the renewed license and the timing of application submittals; and 

• necessary guidance updates. 

The staff held public meetings in May and November of 2012, to solicit comments for 

consideration on the regulatory framework. These comments have been considered in the 

formulation of this paper and will continue to be considered during the ongoing review. The staff 

will continue to solicit feedback from external stakeholders throughout the staff’s preparation for 

subsequent license renewal. 

Based on its initial review, the staff identified regulatory items that warrant additional analysis 

and further consideration for rulemaking. The items requiring additional review address unique 

regulatory challenges to plant operation beyond 60 years. Many of the items from the staff’s 

initial review were not further considered for proposed rule changes because there are existing 

processes in place to address them outside of license renewal. A detailed discussion of the 

options for updating the 10 CFR Part 54 regulatory safety framework can be found in 

Enclosure 2. 
The Commissioners - 5 - 

Options for Updating the 10 CFR Part 54 Regulatory Safety Framework

License renewal relies on the existing regulatory process to ensure adequate protection of 

public health and safety, and specifically focuses only on issues that are uniquely relevant to 

public health and safety during the period of extended operation. Based on its review of the 

regulatory safety framework, the staff believes that the current and subsequent license renewal 

philosophy is sound; however, the staff identified a few areas where rulemaking should be 

considered. These areas are consistent with the underlying principles of license renewal, as 

discussed in the 1995 SOC. In this proposed rulemaking, the staff recommends only additional 

requirements that address issues uniquely relevant to license renewal; issues that do not meet 

these criteria can be addressed through the existing regulatory processes. For example, during 

its review the staff considered such changes as requiring PRA updates, mandating replacement 

of passive components, and reviewing emergency planning for subsequent renewal. However, 

in keeping with the underlying principles of license renewal discussed above, the staff does not 

recommend such changes to the rule in this paper because they are not uniquely relevant to the 

period of extended operation and the existing regulatory process can adequately address them. 

The staff recommends rulemaking for subsequent license renewal to enhance the agency’s 

readiness to review subsequent license renewal applications effectively and efficiently. The 

changes recommended involve clarifying the intent of the rule with minor editorial changes; 

updating the rule to expand the scope of the regulations; addressing timely renewal; and 

considering new requirements specific to subsequent license renewal. Specifically, the 

development of the regulatory framework for the subsequent license renewal rulemaking will 

require the licensee to maintain the effectiveness of aging-management activities, define the 

timing of subsequent license renewal activities, and verify whether certain design input 

parameters in the CLB have changed over time. The details of the regulatory framework in 

these areas for the subsequent license renewal will be developed during the public rulemaking 

process. 

Several options for proceeding with rulemaking, along with the advantages and disadvantages 

of each option, are summarized below. A detailed discussion of Options 2 through 4 is provided 

in Enclosure 2. The staff does not recommend updating the environmental regulatory 

framework under 10 CFR Part 51, “Environmental Protection Regulations for Domestic 

Licensing and Related Regulatory Function,” because environmental issues can be adequately 

addressed by the existing GEIS and through future GEIS revisions. 

Option 1: No change to the existing 10 CFR Part 54 regulations 

The existing license renewal rule allows a previously renewed operating license to be 

subsequently renewed with no additional requirements imposed and no limit on the number of 

times a license can be subsequently renewed provided that it is justified and that safety is 

ensured. Therefore, the existing regulation could continue to be used for subsequent renewals 

without modification. 

The NRC staff has relicensed 73 reactor operating licenses and has developed guidance for 

review under the existing license renewal rule. In addition, stakeholders from industry and the 

staff participate in the existing process and understand it well. The advantage of this option is 

that it provides for the least change in the current process. Technical issues related to 

subsequent renewal would be addressed through revisions of guidance such as the GALL 
The Commissioners - 6 - 

Report and the SRP-LR. If an applicant cannot successfully address technical issues and 

demonstrate that a plant can be operated safely for an additional 20 years, the NRC will not 

renew the license. In addition, within the current process, the NRC already has the flexibility to 

grant a renewed license for any amount of time less than 20 years if the staff believes that is 

appropriate. This option would have the smallest impact on the resources needed to enhance 

infrastructure for subsequent license renewal. 

The disadvantage of Option 1 is that it provides a less efficient regulatory framework for the 

review of subsequent license renewal applications. Modifying the framework for subsequent 

license renewal will enhance regulatory clarity. If the current license renewal rules are not 

changed, certain issues would have to be addressed on a case-by-case basis when they are 

identified during the subsequent license renewal review. This would reduce the efficiency and 

stability of the subsequent license renewal process and will affect the NRC staff review 

resources and schedules. In addition, a less clear regulatory framework is likely to require 

additional oversight to ensure that aging-management activities are effectively accomplished. 

Option 2: Minor clarifications to existing 10 CFR Part 54 regulations for current and subsequent 

renewals 

The staff’s review of 10 CFR Part 54 noted two areas where clarifications to existing 

requirements could be pursued. This option includes an editorial update to the scope of 10 CFR 

54.4(a)(3) to add 10 CFR 50.61a when referring to fracture toughness requirements for 

protection against pressurized thermal shock events. This option also provides clarification of 

the intended purpose of 10 CFR 54.37(b) regarding how the additional records and 

recordkeeping requirements apply to newly identified SSCs. A detailed discussion of Option 2 

can be found in Enclosure 2. 

The advantage of Option 2 is that it makes the rule more consistent with existing regulatory 

guidance and current practices and enhances the clarity and transparency of our regulations to 

the staff, the public, and the industry. 

The disadvantage of this approach is that the rule changes only provide limited regulatory 

clarity. One of the changes is an editorial change and the other clarifies the intent of 10 CFR 

54.37(b), that the staff has addressed in a Regulatory Issue Summary. These changes alone 

may not warrant resource allocation to conduct the rulemaking process. 

Option 3: Update 10 CFR Part 54 regulations for current and subsequent renewals and pursue 

 Option 2 clarifications 

The staff’s review of the 10 CFR Part 54 requirements identified several areas where updates 

could be made to improve the current license renewal rule. This option would include the 

clarifications discussed in Option 2, expanding the scope of the rule to include equipment 

associated with the requirements of 10 CFR 50.54(hh)(2), and to define the expectations of 

timely renewal. Specifically, this option considers adding a provision to define the expectation 

of licensees entering “timely renewal” under 10 CFR 2.109, “Effect of Timely Renewal 

Application,” to clarify that a licensee must implement aging-management activities before the 

expiration of its current license. The rulemaking would also consider including any equipment 

required by licensees to comply with the strategies adopted in response to the Fukushima 
The Commissioners - 7 - 

Dai-ichi nuclear power plant accident. A detailed discussion of Option 3 can be found in 

Enclosure 2. 

The advantage of Option 3 is that it updates 10 CFR Part 54 so that the regulation reflects 

relevant changes in the regulatory environment based on the experience and lessons learned 

from the 73 reactor operating licenses that have been renewed to date. These changes would 

further clarify the expectations for plants in timely renewal and update the scope of the rule to 

ensure that license renewal continues to focus on SSCs that provide substantial additional 

protection to the public health and safety, as discussed in the 1995 SOC. Although the 

proposed changes would alter the scope of the rule, the intent of the rule would not be altered. 

The disadvantage of this approach, in addition to the disadvantage of Option 2, is that the 

changes would create an additional administrative burden for those applicants submitting 

license renewal applications (current and subsequent) before promulgation of the rule as the 

applicants attempt to anticipate the final outcome of the rulemaking process. However, the staff 

believes this impact will be minimized through the staff‘s public engagement throughout the 

rulemaking process. 

Option 4: Pursue rulemaking for subsequent renewal-specific changes and Option 2 and 3 

changes 

This option includes the rulemaking considerations discussed in Options 2 and 3, and would 

also involve the consideration of rulemaking specific to subsequent renewal. As discussed 

above, Option 2 includes minor editorial clarifications to the rule and Option 3 updates the rule 

to expand the scope of the regulations for current and subsequent license renewals. 

Additionally, Option 4 would include the following requirements for subsequent license renewal 

regarding: 

• more explicitly requiring the maintenance of the effectiveness of aging-management 

activities; and 

• defining the timing of subsequent license renewal applications. 

The consideration of rulemaking for specific subsequent renewal requirements would address 

unique aspects of subsequent renewal and would only apply to licensees seeking a subsequent 

license renewal. Under this option, the staff would develop a more explicit requirement for 

maintaining the effectiveness of aging-management activities and a new requirement for 

reporting aging-related degradation after a license is renewed. This option also includes a 

proposal to explore reducing the time that a licensee may submit an application for subsequent 

license renewal before the expiration of an existing license. Additionally, this option discusses 

how the staff will seek assurance that changes over time to site parameters that may affect the 

CLB are understood and addressed, both in terms of aging concerns and the broader agency 

perspective of ensuring continued safe plant operations. 

The subsequent license renewal rulemaking process would require licensees to report agingrelated degradation and maintain the effectiveness of aging-management activities. The 

reporting of aging-related degradation would create a “feedback” mechanism to ensure that the 

industry and the NRC remain up to date on aging mechanisms and effective agingmanagement, as well as reduce the burden of additional oversight and inspection resources for 
The Commissioners - 8 - 

the NRC. Currently, new findings in degradation are below the threshold of what the NRC 

receives as operating experience. As plants age, such information becomes increasingly 

important to ensure that agency guidance and oversight activities are timely and appropriately 

modified. 

Under this option, the staff would reduce the time when an applicant can submit an application 

(i.e., less than 20 years prior to the expiration of its renewed operating license) to ensure 

applicants have adequate experience with aging-management activities prior to submitting a 

subsequent renewal application to the NRC. This will facilitate a more efficient and effective 

review of the subsequent license renewal application, as applications that contain ample results 

from the implementation of aging-management activities will likely preclude exhaustive inquiries 

and debates about operating experience during the review. 

In considering issues for subsequent license renewal, the staff identified that certain site 

parameters that support the CLB, as described in Chapter 2, “Site Characteristics,” of the 

Updated Final Safety Analysis Report, may change over time. For operation beyond 60 years, 

the staff seeks assurance that changes to these parameters would be adequately understood 

and addressed to ensure continued safe plant operations. The staff is currently evaluating and 

assessing the need for additional requirements regarding natural phenomena, severe weather, 

and external hazards for all operating plants as part of its Fukushima lessons learned effort and 

the 2011 Consolidated Appropriations Act. In addition to these ongoing evaluations, the staff is 

also developing a rulemaking plan to evaluate an additional requirement to periodically reassess 

external hazards in the future. The development of any new requirements in 10 CFR Part 50 

“Domestic Licensing of Production and Utilization Facilities” resulting from these efforts will 

support the agency decision making on subsequent license renewal. A detailed discussion of 

Option 4 can be found in Enclosure 2. 

The advantages of this option, in addition to advantages provided in Options 2 and 3, are that 

they provide the NRC additional assurance that effective aging-management activities, 

appropriately informed by relevant experience, will be effectively implemented. This added 

assurance provides regulatory clarity, stability, transparency and efficiency and does so without 

changing the underlying premise of the license renewal rule. These regulatory advantages are 

achieved by defining requirements at the outset of the subsequent license renewal process 

rather than on a case-by-case basis during license renewal reviews. This approach thus 

represents a resource savings to both the NRC and the applicants. The increased rule clarity 

will also allow for improved efficiency in the oversight process by providing a clearer regulatory 

baseline. The changes recommended in Option 4, by maintaining the effectiveness of the rule, 

will also contribute to public confidence in the license renewal process. 

The disadvantage of Option 4, in addition to those associated with Options 2 and 3, is that the 

consideration for rulemaking for specific subsequent renewal requirements is expected to be of 

high complexity due to the need to define specific rule language and will necessitate additional 

staff resources during the rulemaking process. The staff would evaluate the costs and benefits 

during the rulemaking process. 

NON-CONCURRENCE

A non-concurrence was filed during the development of this paper. The non-concurrence 

requests that the staff provide the Commission with an option that requires applicants for 
The Commissioners - 9 - 

subsequent license renewal to include an upgraded PRA assessment in the subsequent license 

renewal application. The non-concurrence states that such a requirement would be consistent 

with the Commission’s Policy Statement on use of PRA (60 FR 42622) and the licensing 

practices of 10 CFR Part 52 “Licenses, Certifications, and Approvals for Nuclear Power plants.” 

The details regarding the non-concurrence on this paper are included in Enclosure 4. 

Although the current license renewal rule does not require the same PRA information as 

required for licensees under 10 CFR Part 52, it allows applicants to risk inform their agingmanagement activities, as described in the 1995 SOC for 10 CFR Part 54, and therefore, is 

consistent with the intent of the Commission Policy Statement on the use of PRA. With respect 

to the argument regarding maintaining consistency with the practices of 10 CFR Part 52, the 

staff also did not find it compelling to require PRA information, as the inconsistency exists today 

between licensees under 10 CFR Part 52, licensees under 10 CFR Part 50, and licensees 

under 10 CFR Part 54, without impacts to the safe operation of the plants. Also, the proposal 

set forth in the non-concurrence did not present information to show that the requirement for 

PRA is an issue uniquely relevant to license renewal (e.g., there is no compelling evidence to 

show that the requirement is needed for subsequent renewal but not for current operation). 

In addition, the SOC published when enacting 10 CFR 50.71(h)(3), which requires 10 CFR Part 

52 licensees to develop a PRA covering all modes and initiating effects, states that “The 

requirements to develop and maintain [in all mode] PRA by the time of license renewal 

application is intended only to establish a timing requirement for completing the upgrade of the 

PRA, and does not have any implications on the current requirements for license renewal. The 

upgraded PRA is not an element of any (i.e., past, present, or future) review or approval of a 

license renewal application.” These SOCs support the staff’s position that imposing a PRA 

requirement is not uniquely relevant to operation during the renewal term and therefore should 

not be included as an option in this paper. 

Therefore, this paper does not include the option to require operating reactors originally licensed 

under 10 CFR Part 50 to meet the same requirement for PRA when applying for subsequent 

license renewal as reactors licensed under 10 CFR Part 52. 

RECOMMENDATION: 

The staff recommends the Commission direct the staff to begin the rulemaking process to 

address all of the proposed topics in Option 4. Addressing these topics through rulemaking 

would provide additional assurance that aging-management activities would be effectively 

implemented and provide regulatory clarity, transparency, stability, and efficiency by defining 

requirements at the outset of the subsequent license renewal process rather than on a 

case-by-case basis during license renewal reviews. 

RESOURCES: 

The resource implications associated with each option are addressed Enclosure 3, which is 

non-public. 
The Commissioners - 10 - 

COORDINATION: 

The Office of the General Counsel has reviewed this paper and has no legal objection. The 

Office of the Chief Financial Officer has reviewed this paper for resource implications and 

concurs. 

 /RA/ 

Mark A. Satorius 

Executive Director 

 for Operations 

Enclosures: 

1. Background and Current Activities 

2. Options for Regulatory Framework 

3. Resource Implications 

4. Non-Concurrence
The Commissioners - 10 - 

COORDINATION: 

The Office of the General Counsel has reviewed this paper and has no legal objection. The 

Office of the Chief Financial Officer has reviewed this paper for resource implications and 

concurs. 

/RA/ 

Mark A. Satorius 

Executive Director 

 for Operations 

Enclosures: 

1. Background and Current Activities 

2. Options for Regulatory Framework 

3. Resource Implications 

4. Non-Concurrence 

ADAMS Accession No.: ML13210A206 *Concurred via email 

OFFICE PM:DLR:RSRG PM:DLR:RSRG BC:DLR:RSRG D: NRR/DE D:NRR/DPR 

NAME BLehman RKuntz BPham 

(RKuntz for) 

PHiland 

(MCheok for) 

LKokajko 

(SBahadur for) 

DATE 06/03/13 06/04/13 06/04/13 06/20/13 06/04/13 

OFFICE D:NRR/DSS D: NRR/JLD D: NRR/DIRS* D: NRR/DRA D:NRR/DLR 

NAME TMcGinty DSkeen 

(RTaylor for) 

HNieh 

(AHowe for) 

JGiitter

Non-Concur

JLubinski 

(MGalloway for) 

DATE 06/20/13 06/11/13 06/21/13 08/10/13 08/16/13 

OFFICE D:RES* D:FSME* D:NMSS* Tech Editor* OGC 

NAME BSheron 

(BThomas for) 

MSatorius 

(BHolian for) 

CHaney 

(SMoore for) JDougherty BMizuno 

DATE 07/26/13 07/22/13 07/19/13 07/24/13 08/06/13 

OFFICE D:OCFO* D:NRR EDO 

NAME GSuber ELeeds MSatorius 

DATE 07/18/13 10/02/13 1/31/14 

OFFICIAL RECORD COPY 
ENCLOSURE 1 

License Renewal Background and Current Staff Activities

The Atomic Energy Act (AEA) of 1954, as amended, allows the NRC to issue licenses for 

commercial power reactors to operate for up to 40 years. The NRC regulations permit these 

licenses to be renewed beyond the initial 40-year term for an additional period of time, limited to 

20-year increments per renewal, based on the outcome of an assessment to determine if the 

nuclear facility can continue to operate safely during the 20-year period of extended operation. 

There are no specific limitations in the AEA or the NRC’s regulations restricting the number of 

times a license may be renewed. 

In the early 1980s, the NRC staff recognized the need to identify the information required, and 

the process to be used, for determining whether to grant an extension to an operating license 

(see Federal Register (FR) notice 56 FR 64943; December 13, 1991). In 1990, the NRC issued 

a proposed power reactor license renewal rule for public comment that addressed the safety 

and technical requirements for license renewal (55 FR 29043; July 17, 1990). The NRC 

adopted these regulations (Title 10 of the Code of Federal Regulations (10 CFR) Part 54, 

“Requirements for Renewal of Operating Licenses for Nuclear Power Plants”) and published 

them in the FR on December 13, 1991, (56 FR 64943). In addition, the NRC issued a 

supporting document that provided the basis for the rule, NUREG-1412, “Foundation for the 

Adequacy of the Licensing Bases,” (ADAMS Accession No. ML080310668), which, as a 

supplement to the statements of consideration for the 1991 rule, describes how the regulatory 

process assures that the plant-specific licensing bases provide reasonable assurance that the 

operation of nuclear power plants would not be inimical to the public health and safety for the 

duration of the renewal period. After further analysis, the NRC amended the regulations in 1995 

to ensure a predictable and stable regulatory process that clearly defined the Commission’s 

expectations for license renewal (60 FR 22461; May 8, 1995). 

The NRC is responsible for reviewing license renewal applications for power reactor licenses in 

accordance with both safety (10 CFR Part 54) and environmental (10 CFR Part 51, 

“Environmental Protection Regulations for Domestic Licensing and Related Regulatory 

Functions”) requirements. After considering ways to evaluate the environmental consequences 

of license renewal, the NRC developed NUREG-1437, “Generic Environmental Impact 

Statement for License Renewal of Nuclear Plants” (hereinafter referred to as “GEIS”), and 

issued it in May 1996, to cover impacts that were common to most or all nuclear power facilities. 

The 1996 GEIS allows the applicant and the NRC to focus on those important environmental 

issues specific to each site pursuing license renewal. In 1996, the NRC published the final rule 

that revised 10 CFR Part 51, which contains the regulations for the environmental analysis 

related to license renewal, and incorporates the findings of the GEIS (61 FR 28467; 

June 5, 1996). 

As stated in the 1996 final rule that incorporated the findings of the GEIS in 10 CFR Part 51, the 

NRC recognized that environmental impact issues might change over time, and that additional 

issues may need to be considered. NRC staff has revised the GEIS to update and reevaluate 

the potential environmental impacts arising from the renewal of an operating license for an 

additional 20 years. In preparing the revised GEIS, the NRC staff considered the need to 

modify, add to, consolidate, or delete any of the environmental issues evaluated in the 
- 2 - 

1996 GEIS. The lessons learned and the knowledge gained during previous license renewal 

environmental reviews, along with public comments received during previous reviews, provided 

a significant source of new information for revising the GEIS, and the staff believes the revised 

GEIS is adequate for subsequent license renewal. By SECY-12-0063, “Final Rule: Revisions to 

Environmental Review for Renewal of Nuclear Power Plant Operating Licenses,” dated 

April 20, 2012 (ADAMS Accession No. ML110760033), the staff provided the revised GEIS and 

supporting guidance documents to the Commission for review. The final rule and associated 

documents were subsequently approved and issued in June 2013 (78 FR 37281; June 20, 

2013). 

As directed by Staff Requirements Memorandum to SECY-99-148, “Credit for Existing 

Programs for License Renewal,” issued August 27, 1999, (ADAMS Accession No. 

ML003751930), the staff developed the GALL Report to document the staff’s evaluation of 

generic existing aging-management programs. The GALL Report documents the staff’s basis 

for determining the existing programs that are adequate without modification, the existing 

programs that should be augmented for license renewal, and the areas that might require new 

programs. The GALL Report is cited in the “Standard Review Plan for Review of License 

Renewal Applications for Nuclear Power Plants” (SRP-LR) as a basis for determining the 

adequacy of AMPs. These documents also contain information on aging-management review 

results and TLAAs, as well as areas in which further evaluation is required on a plant-specific 

basis. The GALL Report and SRP-LR have been revised twice, and the staff has plans to 

revise these guidance documents on a periodic basis to address new information, regardless of 

any changes to the rule. The staff has used the existing review process to renew the licenses 

for 73 power reactor units to date, with 18 units currently under review. The first license renewal 

application was submitted in April 1998, and, currently, the last application is tentatively 

scheduled for a 2018 submittal date. Of those units with a renewed license, 19 units are 

currently in the period of extended operation. 

Technical Considerations for Subsequent License Renewal Safety Reviews

The focus of license renewal, as described in 10 CFR Part 54, is to identify aging that could 

affect the ability of systems, structures, and components important to safety to perform their 

functions and to demonstrate that these effects will be adequately managed during the period of 

extended operation. To address the unique aspects of material aging and degradation that 

would apply to subsequent renewal, the Office of Nuclear Reactor Regulation (NRR) requested 

support from the Office of Nuclear Regulatory Research (RES) to develop technical information 

to evaluate the feasibility of subsequent license renewal. RES has memoranda of 

understanding with both the U.S. Department of Energy (DOE) and the Electric Power Research 

Institute to cooperate in nuclear safety research related to long-term operations beyond 

60 years. 

Under these memoranda, the NRC and the DOE held 2 international conferences, in 2008 and 

2011, on reactor operations beyond 60 years. In May 2012, the NRC and the DOE also 

co-sponsored the Third International Conference on Nuclear Power Plant Life Management for 

Long-Term Operations, organized by the International Atomic Energy Agency. In February of 

2013, the Nuclear Energy Institute (NEI) held a forum on long-term operations and subsequent 

license renewal. These conferences laid out the technical issues that would need to be 

addressed to provide assurance for safe operation beyond 60 years. Based on the information 

gathered over the past several years, the staff currently believes the most significant technical 
- 3 - 

issues challenging operation beyond 60 years are reactor pressure vessel embrittlement; 

irradiation-assisted stress corrosion cracking of reactor internals, concrete structures and 

containment degradation; and electrical cable qualification and condition assessment. 

Throughout this process, the staff has emphasized that it is the industry’s responsibility to 

resolve these and other issues to provide the technical bases to ensure safe operation beyond 

60 years. The staff will review and provide confirmatory research, as needed, on the sufficiency 

and completeness of industry’s technical data. 

The NRC, in cooperation with the DOE, is nearing completion of an expanded materials 

degradation assessment (EMDA). The EMDA uses an expert elicitation process to identify 

materials and components which could be susceptible to significant degradation during 

operation beyond 60 years. The EMDA covers the reactor vessel, primary system piping, 

reactor vessel internals, concrete, and electrical cables and qualification. The staff will use the 

results of the EMDA to identify any gaps in the current technical knowledge or issues not being 

addressed by planned industry or DOE research, and to identify AMPs that the staff believes will 

require enhancements for subsequent license renewal. 

In addition to working with external stakeholders on research, the staff has conducted AMP 

effectiveness audits at three units that are at least 2 years into the period of extended operation. 

The purpose of these audits was to better understand how licensees are implementing the 

license renewal AMPs, in terms of both the findings and the effectiveness of the programs, and 

to develop recommendations for updating license renewal guidance. The staff will use the 

information gathered from these audits to ensure that subsequent license renewal guidance is 

fully informed by the licensee’s aging-management activities during the first license renewals. A 

summary of the first two AMP effectiveness audits can be found in the May 2013, report, 

“Summary of Aging Management Program Effectiveness Audits to Inform Subsequent License 

Renewal: R.E. Ginna Nuclear Power Plant and Nine Mile Point Nuclear Station, Unit 1” 

(ADAMS Accession No. ML13122A007). 

In addition to the AMP audits, the staff is conducting an international periodic safety review 

(PSR) pilot study to determine what insights can be gained and possibly considered in the NRC 

license renewal model. In the pilot study, Argonne National Laboratory compared the safety 

review information from 14 PSR assessment reports from nine countries to the Reactor 

Oversight Process and other NRC regulatory assessment tools. The results from this study will 

be reviewed by NRC staff from NRR and RES to jointly assess the PSR pilot study and to glean 

relevant insights for possible improvements to the NRC’s oversight and regulatory processes. 

The staff also plans to evaluate the need to modify license renewal guidance documents based 

on the information from the pilot study. 

The staff will review the results from AMP audits, findings from the EMDA, results from the PSR 

pilot study, and public comments to identify technical issues that need to be considered for 

assuring the safe operation of NRC-licensed nuclear power plants. In FY 2014, staff expert 

panels will begin reviewing comments and drafting the NRC guidance for subsequent license 

renewal to support creating and implementing the updated framework in time for a 2017 

application. The staff will also assess the appropriate inspection and audit framework to support 

subsequent license renewal and will update the associated guidance as necessary. 
ENCLOSURE 2 

Detailed Discussion of Options for Updating

10 CFR Part 54 Regulatory Safety Framework

Early in the review of the license renewal regulatory framework, the staff concluded that the 

underlying principles of license renewal are sound. The principles, as discussed in the 1995 

SOC, rely on the existing regulatory process to ensure adequate protection of public health and 

safety, and focus license renewal on issues that are uniquely relevant to public health and 

safety during the period of extended operation. Keeping with these principles, the staff is only 

recommending requirements for subsequent renewal that address issues unique to subsequent 

license renewal. During the review, the staff evaluated whether adding various new 

requirements, such as mandating replacement of components, reviewing emergency planning 

for subsequent license renewal, or requiring probabilistic risk assessments would be necessary 

to ensure safe plant operation beyond 60 years. For each of these examples, the staff found 

that the requirements were not uniquely relevant to the subsequent license renewal term and, 

therefore, should not be added to the license renewal rule. In addition, there are existing 

regulatory processes in place that allow policy decisions to be made on these requirements 

without tying them to license renewal. All of the following proposed requirements either modify 

the existing regulations or add new requirements that align with the existing principles of license 

renewal and address issues that are uniquely relevant to current and/or subsequent license 

renewal. 

Option 2: Minor clarifications to existing 10 CFR Part 54 regulations for current and subsequent 

renewals 

The staff’s review of Title 10 of the Code of Federal Regulations (10 CFR) Part 54, 

“Requirements for Renewal of Operating Licenses for Nuclear Power Plants,” noted two areas 

where clarifications to existing requirements could be pursued. This option would consider 

rulemaking for the following requirements for current and subsequent renewals: 

• Editorial Update to 10 CFR 54.4(a)(3)

Paragraph 10 CFR 54.4(a)(3) of 10 CFR 54.4, “Scope,” states that the components 

within the scope of specific regulations in 10 CFR Part 50, “Domestic Licensing of 

Production and Utilization Facilities,” must be included within the scope of the Part 54 

provisions. One of the regulations referred to in 10 CFR 54.4(a)(3) is 10 CFR 50.61, 

“Fracture Toughness Requirements for Protection Against Pressurized Thermal Shock 

(PTS) Events.” In 2010, NRC finalized 10 CFR 50.61a, “Alternative Fracture Toughness 

Requirements for Protection Against Pressurized Thermal Shock Events,” (see FR 

notice 75 FR 13; January 4, 2010). Although Section 50.61a(b) states that the 

requirements of 10 CFR 50.61a for PTS analysis could be implemented as an alternative 

to satisfy the requirements of 10 CFR 50.61, this is not apparent from reading the 

current requirements in 10 CFR 54.4(a)(3). As a result, an amendment to the 

requirement in 10 CFR 54.4(a)(3) (or the equivalent requirement in a new subsequent 

license renewal rule) to refer to both 10 CFR 50.61 and 50.61a when referring to the 

PTS rules would provide further clarification for implementation of 10 CFR Part 54. In 

the rulemaking process, the staff would make the relevant editorial change to the 

existing rule. 
- 2 - 

• Clarification of the Intent of 10 CFR 54.37(b)

The current license renewal rule (Paragraph 54.37(b) of 10 CFR 54.37, “Additional 

Records and Recordkeeping Requirements,”) states that, “after the renewed license is 

issued, the final safety analysis report update required by 10 CFR 50.71(e) must include 

any systems, structures, and components newly identified that would have been subject 

to an aging-management review or evaluation of time-limited aging analyses in 

accordance with 54.21.” Implementation of this provision of the rule has led to confusion 

between the staff and industry because the SOCs are not specific on the intent of this 

regulation. In particular, the absence of sufficient supporting information in the SOCs 

has led to confusion on whether the regulation applies to SSCs installed in the plant after 

issuance of the renewed license. Applicability of the backfit rule (10 CFR 50.109, 

“Backfitting”) to 10 CFR 54.37(b) has been another area of confusion and was 

highlighted by the Office of the Inspector General in its 2007 report OIG-07-A-15, “Audit 

of the NRC’s License Renewal Program.” Consequently, the staff issued Regulatory 

Issue Summary (RIS) 2007-16, Revision 1, “Implementation of the Requirements of 

10 CFR 54.37(b) for Holders of Renewed Licenses,” to clarify the intent of 10 CFR 

54.37(b). 

The RIS clarifies that 10 CFR 54.37(b) applies to SSCs installed in the plant before 

issuance of the renewed license that either were: (a) not within the scope of license 

renewal when the NRC approved the application, but are subject to a licensing basis 

change after issuance of the renewed license that makes them fall within scope; or (b) 

within the scope of license renewal when the NRC approved the application, but were 

not identified as such until after issuance of the renewed license. The RIS also clarifies 

that development and implementation of aging-management programs for newly 

identified SSCs under 10 CFR 54.37(b) are not considered backfits. In the rulemaking 

process, the staff would clarify the language of 10 CFR 54.37(b) consistent with the 

positions stated in RIS 2007-16, Revision 1, and provide a clear basis for its intended 

application in the SOCs. 

Option 3: Update 10 CFR Part 54 regulations for current and subsequent renewals and pursue 

Option 2 clarifications 

The staff’s review of the 10 CFR Part 54 requirements noted several areas in which updates 

could be made to improve the existing rule. These changes would apply to both current and 

subsequent license renewals. This option would include the clarifications discussed in Option 2 

and would involve the consideration of rulemaking for the following requirements:

• Define Expectations of Timely Renewal (10 CFR 2.109)

Regulations in 10 CFR 2.109(b) implement the “timely renewal” provision of the 

Administrative Procedure Act (see the portion of the United States Code designated 

5 U.S.C 1.558(c)). Section 2.109(b) of 10 CFR states that “if a licensee of a nuclear 

power plant ... files a sufficient application for renewal of either an operating license or a 

combined license at least 5 years before the expiration of the existing license, the 

existing license will not be deemed to have expired until the application has been finally 

determined.” At the same time aging-management activities necessary for the period of 

extended operation are required to be implemented only after a power reactor license is 
- 3 - 

renewed. Therefore, these provisions can result in a situation in which a licensee may 

enter the period of extended operation without a renewed license and without having 

implemented aging-management activities as discussed in the license renewal 

application and as relied on by the staff during review of the application. To address this 

inconsistency, the staff would consider adding a provision to 10 CFR Part 54 stating that 

a licensee must implement aging-management activities specified in the license renewal 

application (as amended during the review) or the staff’s documented safety evaluation 

report for components within the scope of license renewal before the expiration of its 

current license. 

• Expand Scope of Regulation to Include 10 CFR 50.54(hh)(2) Equipment

The current license renewal regulation 10 CFR 54.4(a)(3) includes a category of SSCs 

that are beyond the traditional definition of safety-related; however, the NRC included 

them in the scope of the rule “because they provide substantial additional protection to 

the public health and safety or are an important element in providing adequate protection 

to the public health and safety” (60 FR 22461 and 22465; May 8, 1995). This category 

includes SSCs whose functionality are relied on in safety analyses or plant evaluations 

to perform a function that demonstrates compliance with the NRC’s regulations for fire 

protection (10 CFR 50.48, “Fire Protection”), environmental qualification (10 CFR 50.49, 

“Environmental Qualification of Electric Equipment Important to Safety for Nuclear Power 

Plants”), pressurized thermal shock (10 CFR 50.61), anticipated transients without 

scram (10 CFR 50.62, “Requirements for Reduction of Risk from Anticipated Transients 

Without Scram (ATWS) Events for Light-Water-Cooled Nuclear Power Plants”), and 

station blackout (10 CFR 50.63, “Loss of All Alternating Current Power”). 

Since promulgation of the license renewal rule, the NRC has adopted Paragraph 

10 CFR 50.54(hh)(2) of 10 CFR 50.54, “Conditions of Licenses,” which requires 

implementation of “guidance and strategies intended to maintain or restore core cooling, 

containment, and spent fuel pool cooling capabilities under the circumstances 

associated with loss of large areas of the plant due to explosions or fire ....” The staff 

believes that this requirement provides substantial additional protection to public health 

and safety as discussed in the SOC. Therefore, rulemaking would consider expanding 

the scope of the license renewal rule to include SSCs associated with the 

10 CFR 50.54(hh)(2) requirements. The rulemaking would also consider including any 

equipment necessary to show compliance with strategies adopted in response to the 

accident at the Fukushima Dai-ichi nuclear power plant. 

Option 4: Pursue rulemaking for subsequent renewal specific changes and Option 2 and 3, 

changes 

This option would include the rulemaking discussed in Options 2 and 3, and would also consider 

rulemaking for specific subsequent renewal requirements. These requirements would be 

considered to address unique aspects of subsequent renewal and would only pertain to 

licensees applying for a subsequent license renewal. The following are requirements the staff 

believes could be considered for inclusion in regulations specific to subsequent renewals. 
- 4 - 

• Maintaining the Effectiveness of Aging-Management Activities

As nuclear power plants continue to operate beyond their initial licensing, the 

implementation and maintenance of aging-management programs and activities for 

license renewal continue to play an important role in determining their effectiveness. 

Therefore, the staff recommends initiating rulemaking to explicitly require maintenance 

of effectiveness for license renewal activities and reporting aging-related degradation 

after a license is renewed. 

Proposed requirements would include actions for periodically assessing the 

effectiveness of the aging-management activities and evaluating plant-specific and 

industry-wide experience related to license renewal. The NRC requires similar 

self-assessment provisions in other regulations, such as for maintenance 

(10 CFR 50.65, “Requirements for Monitoring the Effectiveness of Maintenance at 

Nuclear Power Plants”), fire protection (10 CFR 50.48), and emergency preparedness 

(Appendix E, “Emergency Planning and Preparedness for Production and Utilization 

Facilities,” to 10 CFR Part 50). To ensure that licensees’ self-assessments consider all 

relevant aging concerns, and that the NRC staff guidance and decisions are 

appropriately informed, requiring licensees to report age-related degradation would also 

be considered in potential subsequent license renewal rulemaking. This change would 

help the staff and industry stay abreast of relevant experience. The staff believes that 

reporting experience associated with aging-management activities should be a 

requirement for subsequent license renewals to ensure that the NRC and the industry 

are getting a complete understanding of the aging mechanisms being experienced 

throughout the nuclear reactor fleet. 

To enhance aging-management for subsequent renewal, the rulemaking effort would 

also consider imposing a requirement for licensees to report certain changes to 

subsequent license renewal activities. This requirement would allow the staff to review 

certain changes to aging-management activities and would ensure the NRC is aware of 

significant changes being made after a license is subsequently renewed. These 

mechanisms would require the applicant to emphasize aging-management activities in 

the submittal of the subsequent license renewal application, and would improve the 

efficiency and effectiveness of NRC’s oversight activities by reducing the staff resources 

and streamlining the review process. The NRC has similar review requirements for 

other programs, such as for the quality assurance program (10 CFR 50.54(a)(3)) and the 

operator requalification program (10 CFR 50.54(i-1)). 

Taken together, these requirements would continue to make aging management a focus 

during subsequent periods of extended operation while reducing the burden of additional 

oversight and inspection activities by the NRC to verify aging-management 

effectiveness. During implementation of the first license renewals, the staff noted 

several cases where licensees encountered administrative challenges (e.g., lack of 

documentation) in demonstrating their ongoing efforts of maintaining effective agingmanagement programs and activities for license renewal. The proposed requirements 

above would create a clear “feedback system” to keep the industry and the NRC 

informed of developments and new findings in aging mechanisms and effective 

aging-management techniques. From an NRC perspective, these changes address the 

regulatory need to stay abreast of aging information during subsequent periods of 
- 5 - 

extended operation through licensee reporting rather than additional oversight activities 

initiated by the NRC. For these reasons, the staff believes rulemaking should be 

initiated to consider including the requirements discussed above for maintaining 

aging-management activities if a license is subsequently renewed. 

• Timing of Subsequent License Renewal Applications

Regulations in 10 CFR 54.17(c) of the license renewal rule allows an applicant to submit 

an application for a renewed license up to 20 years before the expiration of the license 

currently in effect; 10 CFR 54.31(b) allows the expiration of the license to be extended 

by up to 20 years, with the total term not to exceed 40 years. Therefore, for potential 

subsequent license renewals, an application may be filed at the same time a facility 

enters its initial period of extended operation. 

As discussed in the SOC for the 1991 rule, the Commission imposed a limit on when an 

application can be filed for a renewed license “to ensure that substantial operating 

experience was accumulated by a licensee prior to submitting a renewal application” 

(56 FR 64963; December 13, 1991). The NRC further believed that a minimum 20-year 

period would provide enough plant-specific experience to identify any unique concerns 

with regard to age-related degradation. 

For the initial period of extended operation, new AMPs, and enhancements to existing 

AMPs, were identified to manage the effects of aging on some components within the 

scope of license renewal. Adequate experience with these AMPs would be required 

before an application for a subsequent renewal period could be filed. Because the rule 

allows for a subsequent renewal application to be filed at the point that a plant enters the 

first period of extended operation, which is when new AMPs and enhancements are 

required to be implemented, in the rulemaking process the staff would consider limiting 

the time during which a subsequent license renewal application can be filed. The new 

limit would ensure adequate accumulation of experience with new AMPs, while still 

allowing utilities an appropriate span of time in which to submit their application prior to 

the 5-year limit associated with the timely renewal provision. The staff recognizes that 

limiting the time an application can be submitted can have business-planning 

implications for the industry, but believes that, with an explicit clarification in the rule for 

subsequent license renewal, such planning can still be accomplished and that 

accumulating experience with new and enhanced license renewal AMPs is necessary 

before a subsequent renewal application can be filed. This proposed requirement 

supports the effectiveness proposal discussed above in that it requires applicants to 

accumulate experience to demonstrate that the new and enhanced AMPs are managing 

the effects of aging as intended. 

• Verifying the Continuing Validity of Certain Original Design Input Parameters

In considering issues for subsequent license renewal, the staff identified that certain 

parameters that support the CLB may change over time. These parameters are those 

described in Chapter 2, “Site Characteristics,” of a plant’s Updated Final Safety Analysis 

Report (UFSAR). The Chapter 2 parameters include those related to natural 

phenomena, severe weather, and other changes to the surrounding plant environment. 

These parameters and any changes to them are more relevant to subsequent license 
- 6 - 

renewal than the first renewal period. Applications for a subsequent license renewal 

would be reflective of these parameters 40-50 years after their collection, representing a 

greater chance that the parameters had changed with possible impact to the CLB. 

Therefore, for operation beyond 60 years, the staff seeks assurance that changes to 

these parameters would be adequately understood and addressed, both in terms of 

aging concerns and the broader agency perspective of ensuring continued safe plant 

operations. Identifying parameters that change over time and evaluating the impact of 

those parameter changes is similar to the approach that the staff takes in evaluating 

environmental impacts—a well-accepted and implemented process. 

These parameters described in the Chapter 2 of the UFSAR support the plant’s basis for 

meeting Appendix A to 10 CFR Part 50 General Design Criteria (GDC) 2, “Design Basis 

for Protection Against Natural Phenomena,” and GDC 4, “Environmental and Dynamic 

Effects Design Basis.” GDC 2 requires the plant’s design to withstand the effects of the 

most severe of the natural phenomena that have been historically reported for the site 

and surrounding area, with margin to account for the limited accuracy, quantity, and 

period of time in which the historical data have been accumulated. GDC 4 requires that 

plants be designed to protect structures, systems, and components from, among other 

things, the effects and conditions outside the nuclear power unit. 

As a result of the Fukushima Dai-ichi nuclear power plant accident, efforts are already 

underway by the staff to reevaluate the design bases of nuclear power plants against 

seismic and flooding hazards using present-day NRC requirements and guidance. The 

staff’s efforts will expand to assess other external hazards, consistent with the mandate 

of the 2011 Consolidated Appropriations Act that requires the re-evaluation of seismic, 

flooding, and other external hazards at licensed sites against current applicable 

Commission requirements and guidance. 

In addition to these ongoing evaluations, the Commission approved the staff’s 

development of a rulemaking plan to evaluate an additional requirement to periodically 

reassess external hazards in the future. The ultimate decision by the Commission on 

whether or not to approve an additional 10 CFR Part 50 requirement will inform the 

agency’s decision on a subsequent license renewal application. If that rulemaking effort 

results in a new requirement and is complete prior to or during the first subsequent 

license renewal application review, applicants for subsequent license renewal would be 

required to adhere to that requirement. If the rulemaking is still in process when the first 

subsequent renewal decision is expected, the staff will consider the confirmation of that 

portion of the CLB associated with the UFSAR Chapter 2 parameters through conditions 

or other changes to the renewed license, consistent with the requirements in 10 CFR 

54.33, “Continuation of CLB and conditions of renewed license,” and adjust accordingly 

following a Commission decision on the rulemaking. 
ENCLOSURE 4 

Non-Concurrence Process Record for NCP-2013-012

The U.S. Nuclear Regulatory Commission (NRC) strives to establish and maintain an 

environment that encourages all employees to promptly raise concerns and differing views 

without fear of reprisal and to promote methods for raising concerns that will enhance a 

strong safety culture and support the agency’s mission. 

Individuals are expected to discuss their views and concerns with their immediate 

supervisors on a regular, ongoing basis. If informal discussions do not resolve concerns, 

individuals have various mechanisms for expressing and having their concerns and differing 

views heard and considered by management. 

Management Directive MD 10.158, “NRC Non-Concurrence Process,” describes the 

Non- Concurrence Process (NCP). 

http://pbadupws.nrc.gov/docs/ML0706/ML070660506.pdf

The NCP allows employees to document their differing views and concerns early in the 

decision-making process, have them responded to, and attach them to proposed 

documents moving through the management approval chain. 

NRC Form 757, NCP is used to document the process. 

Section A of the form includes the personal opinions, views, and concerns of an NRC 

employee. 

Section B of the form includes the personal opinions and views of the NRC employee’s 

immediate supervisor. 

Section C of the form includes the agency’s evaluation of the concerns and the agency’s 

final position and outcome. 

NOTE: Content in Sections A and B reflects personal opinions and views and does not 

represent official factual representation of the issues, nor official rationale for the agency 

decision. Section C includes the agency’s official position on the facts, issues, and rationale 

for the final decision. 

The agency’s official position (i.e., the document that was the subject of the non-concurrence) 

is included in ADAMS Accession Number ML13210A206. 

This record is profiled in ADAMS as publicly available and will be declared an official agency 

record when the SECY paper is declared after the Commission has voted and the SRM is 

issued. 
- 2 - 
- 3 - 
- 4 - 
- 5 - 
- 6 -