5266 Federal Register / Vol. 86, No. 11 / Tuesday, January 19, 2021 / Notices 

divisions, and combined NECTAs 

should be discontinued. 

(3) Research should be undertaken on 

an additional, territorially exhaustive 

classification that covers all of the 

United States and Puerto Rico. 

(4) The first annual delineation 

update of the coming decade should be 

combined with the decennial-based 

delineations. 

(5) OMB should make publicly 

available a schedule for updates to the 

core based statistical areas (see 

proposed update schedule below). 

(6) OMB should continue use of 

American Community Survey 

commuting data in measurement of 

intercounty connectivity, though 

changing societal and economic trends 

may warrant considering changes in the 

2030 standards. 

Under the recommendations of the 

committee, OMB would release three 

different types of updates, subject to the 

proposed standards. 

(1) Annual Updates—These updates 

would address qualification of new 

metropolitan and micropolitan 

statistical areas and typically would 

affect a small number of counties. (In 

some years, there may be no updates 

warranted by the data.) 

(2) Five-Year (‘‘mid-decade’’) 

Update—This broader update would 

include: Qualification of metropolitan 

and micropolitan statistical areas, 

qualification of outlying counties, 

merging of adjacent metropolitan or 

micropolitan statistical areas, 

qualification of principal cities, 

categorization of metropolitan and 

micropolitan statistical areas, 

qualification of metropolitan divisions, 

qualification of combined statistical 

areas, and titling of metropolitan and 

micropolitan statistical areas, 

metropolitan divisions, and combined 

statistical areas. 

(3) Decennial Delineation—The initial 

re-delineation following adoption of 

revised standards would include all of 

the changes listed for the five-year 

update, plus the qualification of central 

counties. 

The schedule for these updates as 

described in the attached proposed 

standards is as follows: 

Update type Release date 

Decennial Delineation ........ June 2023. 

Annual Update ................... December 2024. 

Annual Update ................... December 2025. 

Annual Update ................... December 2026. 

Annual Update ................... December 2027. 

Five-Year Update .............. December 2028. 

Annual Update ................... December 2029. 

4. Issues for Comment 

OMB is seeking comments on the 

specific recommendations of the 

committee for revising the 2010 

standards and their potential effects on 

the statistical area delineations (see 

Section 3 above). Comments are also 

sought on any other aspect of the 

current 2010 Standards that are of 

interest to reviewers, including topics 

such as commuting thresholds, 

alternative sources of data, stakeholder 

engagement, and procedures for OMB 

dissemination of updates to the 

delineations, as well as editorial 

suggestions to help improve the clarity 

of the standards. 

Dominic J. Mancini, 

Deputy Administrator. 

[FR Doc. 2021–00988 Filed 1–15–21; 8:45 am] 

BILLING CODE 3110–01–P 

NUCLEAR REGULATORY 

COMMISSION 

[NRC–2020–0153] 

Updated Aging Management Criteria 

for Reactor Vessel Internal 

Components for Pressurized-Water 

Reactors 

AGENCY: Nuclear Regulatory 

Commission. 

ACTION: Interim staff guidance; issuance. 

SUMMARY: The U.S. Nuclear Regulatory 

Commission (NRC) is issuing Interim 

Staff Guidance (ISG) SLR–ISG–2021– 

01–PWRVI, ‘‘Updated Aging 

Management Criteria for Reactor Vessel 

Internal Components for PressurizedWater Reactors.’’ This ISG updates the 

aging management criteria for 

pressurized-water reactor (PWR) vessel 

internals components in the NRC’s 

subsequent license renewal (SLR) 

guidance documents. Specifically, the 

ISG revises guidance contained in 

NUREG–2191, ‘‘Generic Aging Lessons 

Learned for Subsequent License 

Renewal (GALL–SLR) Report,’’ and 

NUREG–2192, ‘‘Standard Review Plan 

for Review of Subsequent License 

Renewal Applications for Nuclear 

Power Plants.’’ This ISG is intended to 

facilitate preparation of SLR 

applications by clarifying existing 

guidance for aging management and 

adding new guidance, which also will 

facilitate the NRC staff’s review of SLR 

applications. 

DATES: This guidance is effective on 

February 18, 2021. 

ADDRESSES: Please refer to Docket ID 

NRC–2020–0153 when contacting the 

NRC about the availability of 

information regarding this document. 

You may obtain publicly available 

information related to this document 

using any of the following methods: 

• Federal Rulemaking Website: Go to 

https://www.regulations.gov and search 

for Docket ID NRC–2020–0153. Address 

questions about Docket IDs in 

Regulations.gov to Jennifer Borges; 

telephone: 301–287–9127; email: 

Jennifer.Borges@nrc.gov. For technical 

questions, contact the individual listed 

in the FOR FURTHER INFORMATION

CONTACT section of this document. 

• NRC’s Agencywide Documents 

Access and Management System 

(ADAMS): You may obtain publicly 

available documents online in the 

ADAMS Public Documents collection at 

https://www.nrc.gov/reading-rm/ 

adams.html. To begin the search, select 

‘‘Begin Web-based ADAMS Search.’’ For 

problems with ADAMS, please contact 

the NRC’s Public Document Room (PDR) 

reference staff at 1–800–397–4209, 301– 

415–4737, or by email to pdr.resource@

nrc.gov. For the convenience of the 

reader, instructions about obtaining 

materials referenced in this document 

are provided in the ‘‘Availability of 

Documents’’ section. 

• Attention: The PDR, where you may 

examine and order copies of public 

documents, is currently closed. You 

may submit your request to the PDR via 

email at pdr.resource@nrc.gov or call 1– 

800–397–4209 or 301–415–4737, 

between 8:00 a.m. and 4:00 p.m. (EST), 

Monday through Friday, except Federal 

holidays. 

FOR FURTHER INFORMATION CONTACT: 

Jeffrey Mitchell, Office of Nuclear 

Reactor Regulation, U.S. Nuclear 

Regulatory Commission, Washington, 

DC 20555–0001, telephone: 301–415– 

0833; email: jeffrey.mitchell2@nrc.gov. 

SUPPLEMENTARY INFORMATION: 

I. Background 

On August 3, 2020 (85 FR 46735), the 

staff requested public comments on 

draft SLR–ISG–PWRVI–2020–XX, 

‘‘Updated Aging Management Criteria 

for Reactor Vessel Internal Components 

for Pressurized-Water Reactors.’’ The 

NRC received comments from the 

Electric Power Research Institute, 

Materials Reliability Program (EPRI 

MRP) by letter dated September 1, 2020 

(ADAMS Accession No. ML20245E539), 

and from the Nuclear Energy Institute 

by letter dated September 2, 2020 

(ADAMS Accession No. ML20246G654). 

No other comments were submitted. 

The NRC staff considered those 

comments in developing the final 

version of the ISG. The staff’s responses 

to the comments are provided in 


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Federal Register / Vol. 86, No. 11 / Tuesday, January 19, 2021 / Notices 5267 

Appendix H, ‘‘Disposition of Public 

Comments,’’ of the final ISG. 

This ISG updates NUREG–2191, 

‘‘Generic Aging Lessons Learned for 

Subsequent License Renewal (GALL– 

SLR) Report,’’ and NUREG–2192, 

‘‘Standard Review Plan for Review of 

Subsequent License Renewal 

Applications for Nuclear Power Plants.’’ 

NUREG–2191 and NUREG–2192 were 

published in July 2017, and a full 

review and revision to these documents 

is not scheduled to be performed for 

several years. The staff has reviewed the 

first three subsequent license renewal 

applications (SLRAs) that were based on 

the above guidance documents. During 

these reviews, the staff and applicants 

identified improvements to the 

guidance that would assist in preparing 

and reviewing future SLRAs more 

effectively and efficiently. This ISG 

provides an interim update to NUREG– 

2191 and NUREG–2192 to implement 

these improvements. 

This ISG is not intended for 

standalone use. It provides revisions to 

NUREG–2191 and NUREG–2192 

sections and tables that supersede the 

content in the NUREGs and is intended 

to be used within the context of the 

NUREGs. The revisions captured in this 

ISG include: 

• Updates to GALL–SLR Report aging 

management program XI.M16A, ‘‘PWR 

Vessel Internals’’; 

• changes to aging management 

review items in NUREG–2191 tables and 

corresponding summary tables in 

NUREG–2192; 

• new aging management review 

items in NUREG–2191 tables and 

corresponding summary tables in 

NUREG–2192; 

• changes to NUREG–2192 ‘‘further 

evaluation’’ guidance sections; 

• updates to references listed in 

affected NUREG–2191 sections; and 

• editorial corrections to relevant 

sections. 

II. Availability of Documents 

The documents identified in the 

following table are available to 

interested persons in ADAMS, as 

indicated. 

Document ADAMS accession No. 

NUREG–2191, ‘‘Generic Aging Lessons Learned for Subsequent License Renewal (GALL–SLR) Report’’ ............... ML16274A389 (Vol. 1) 

ML16274A399 (Vol. 2). 

NUREG–2192, ‘‘Standard Review Plan for Review of Subsequent License Renewal Applications for Nuclear Power 

Plants’’.

ML16274A402. 

Draft SLR–ISG–PWRVI–2020–XX, ‘‘Updated Aging Management Criteria for Reactor Vessel Internal Components 

for Pressurized-Water Reactors’’.

ML20156A343. 

Final SLR–ISG–2021–01–PWRVI, ‘‘Updated Aging Management Criteria for Reactor Vessel Internal Components 

for Pressurized-Water Reactors’’.

ML20217L203. 

March 28, 2019, Summary of Category 2 Public Meeting on Lessons Learned from the Review of the First Subsequent License Renewal Applications.ML19112A206. 

Summary of December 12, 2019, Category 2 Public Meeting on Lessons Learned from the Review of the First 

Subsequent License Renewal Applications.

ML20016A347. 

February 20, 2020, Summary of Category 2 Public Meeting on Lessons Learned from the Review of the First Subsequent License Renewal Applications.ML20076E074. 

Summary of March 25, 2020 Meeting with Industry Related to Revisions to Subsequent License Renewal Guidance Documents.ML20107F702. 

Summary of April 3, 2020, Meeting with Industry Regarding Changes to Subsequent License Renewal Guidance 

Documents.

ML20107F733. 

Summary of April 7, 2020, Meeting with Industry Regarding Revisions to the Subsequent License Renewal Guidance Documents.ML20107F699. 

Comment Letter (1) of Christopher Koehler and Brian Burgos, on behalf of the Electric Power Research Institute, 

Subject: ‘‘Industry Comments to Draft Interim Staff Guidance (ISG)–SLR–ISG–PWRVI–2020–XX’’.

ML20245E539. 

Comment Letter (2) of Peter W. Kissinger, on behalf of Nuclear Energy Institute, Subject: ‘‘Comments on the proposed changes to subsequent license renewal document SLR–ISG–PWRVI–2020–XX’’.ML20246G654. 

III. Backfit Discussion 

This ISG intends to revise guidance 

for the NRC staff reviewing SLRAs and 

for prospective applicants in preparing 

SLRAs. Issuance of this ISG does not 

constitute a backfit as defined in section 

50.109(a)(1) of title 10 of the Code of 

Federal Regulations (10 CFR) and is not 

otherwise inconsistent with the issue 

finality provisions in 10 CFR part 52. As 

discussed in the ‘‘Backfitting’’ section of 

the final ISG, the ISG positions do not 

constitute backfitting inasmuch as the 

ISG is guidance directed to the NRC 

staff with respect to its regulatory 

responsibilities and to applicants who 

choose to follow the guidance. 

Applicants and potential applicants are 

not, with certain exceptions, the subject 

of either the backfit rule or any issue 

finality provisions under 10 CFR part 

52. The NRC staff has no intention to 

impose the ISG positions on existing 

nuclear power plant licensees either 

now or in the future (absent a voluntary 

request for a change from the licensee). 

IV. Congressional Review Act 

This ISG is a rule as defined in the 

Congressional Review Act (5 U.S.C. 

801–808). However, the Office of 

Management and Budget has not found 

it to be a major rule as defined in the 

Congressional Review Act. 

Dated: January 13, 2021. 

For the Nuclear Regulatory Commission. 

Robert Caldwell, 

Deputy Director, Division of New and 

Renewed Licenses, Office of Nuclear Reactor 

Regulation. 

[FR Doc. 2021–01041 Filed 1–15–21; 8:45 am] 

BILLING CODE 7590–01–P 

NUCLEAR REGULATORY 

COMMISSION 

[NRC–2020–0279] 

Application and Testing of SafetyRelated Diesel Generators in Nuclear 

Power Plants 

AGENCY: Nuclear Regulatory 

Commission. 

ACTION: Draft regulatory guide; request 

for comment. 

SUMMARY: The U.S. Nuclear Regulatory 

Commission (NRC) is issuing for public 

comment draft regulatory guide (DG), 

DG–1303, ‘‘Application and Testing of 

Safety-Related Diesel Generators in 

Nuclear Power.’’ This draft guide is 

proposed revision 5 of Regularity Guide 

(RG) 1.9. DG–1303 provides updated 

guidance that the staff of the NRC 

considers acceptable to demonstrate 


khammond on DSKJM1Z7X2PROD with NOTICES