Text

Monthly (28-day) Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: September 3, 2024
	ML24228A091
Person / Time
Issue date:	08/27/2024
From:	Rivera-Verona A; Division of Operating Reactor Licensing
To:	;
References
	NRC-2024-0150, 89 FR 71433
	Download: ML24228A091 (1)
	v • d • e

[7590-01-P]

NUCLEAR REGULATORY COMMISSION

[NRC-2024- 0150]

Monthly Notice;

Applications and Amendments to Facility Operating Licenses and Combined

Licenses Involving No Significant Hazards Considerations

AGENCY: Nuclear Regulatory Commission.

ACTION: Monthly notice.

SUMMARY

Pursuant to section 189a.(2) of the Atomic Energy Act of 1954, as

amended (the Act), the U.S. Nuclear Regulatory Commission (NRC) is publishing this

regular monthly notice. The Act requires the Commission to publish notice of any

amendments issued, or proposed to be issued, and grants the Commission the authority

to issue and make immediately effective any amendment to an operating license or

combined license, as applicable, upon a determination by the Commission that such

amendment involves no significant hazards consideration (NSHC), notwithstanding the

pendency before the Commission of a request for a hearing from any person.

DATES: Comments must be filed by October 3, 2024. A request for a hearing or

petitions for leave to intervene must be filed by November 4, 2024. This monthly notice

includes all amendments issued, or proposed to be issued, from July 19, 2024, to

August 15, 2024. The last monthly notice was published on August 6, 2024.

ADDRESSES: You may submit comments by any of the following methods ; however,

the NRC encourages electronic comment submission through the Federal rulemaking

website.

Federal rulemaking website: Go to https://www.regulations.gov and search

for Docket ID NRC-2024-0150. Address questions about Docket IDs in Regulations.gov to Stacy Schumann; telephone: 301-415-0624; email: Stacy.Schumann@nrc.gov. For

technical questions, contact the individual listed in the For Further Information Contact

section of this document.

Mail comments to: Office of Administration, Mail Stop: TWFN-7 -A60M, U.S.

Nuclear Regulatory Commission, Washington, DC 20555-0001, ATTN: Program

Management, Announcements and Editing Staff.

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: Karen Zeleznock, Office of Nuclear

Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington, DC 20555-

0001; telephone: 301-415-1118; email: Karen.Zeleznock@nrc.gov.

SUPPLEMENTARY INFORMATION:

I. Obtaining Information and Submitting Comments

A. Obtaining Information

Please refer to Docket ID NRC-2024-0150, facility name, unit number(s), docket

number(s), application date, and subject 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 Website: Go to https://www.regulations.gov and

search for Docket ID NRC-2024-0150.

NRCs 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

2 contact the NRCs Public Document Room (PDR) reference staff at 1-800 -397-4209, at

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 this document.

NRCs PDR: The PDR, where you may examine and order copies of publicly

available documents, is open by appointment. To make an appointment to visit the PDR,

please send an email to PDR.Resource@nrc.gov or call 1-800 -397-4209 or 301-415-

4737, between 8 a.m. and 4 p.m. eastern time (ET), Monday through Friday, except

Federal holidays.

B. Submitting Comments

The NRC encourages electronic comment submission through the Federal

rulemaking website (https://www.regulations.gov). Please include Docket ID NRC-

2024-0150, facility name, unit number(s), docket number(s), application date, and

subject, in your comment submission.

The NRC cautions you not to include identifying or contact information that you

do not want to be publicly disclosed in your comment submission. The NRC will post all

comment submissions at https://www.regulations.gov as well as enter the comment

submissions into ADAMS. The NRC does not routinely edit comment submissions to

remove identifying or contact information.

If you are requesting or aggregating comments from other persons for

submission to the NRC, then you should inform those persons not to include identifying

or contact information that they do not want to be publicly disclosed in their comment

submission. Your request should state that the NRC does not routinely edit comment

submissions to remove such information before making the comment submissions

available to the public or entering the comment into ADAMS.

3 II. Notice of Consideration of Issuance of Amendments to Facility Operating

Licenses and Combined Licenses and Proposed No Significant Hazards

Consideration Determination

For the facility-specific amendment requests shown in this notice, the

Commission finds that the licensees analyses provided, consistent with section 50.91 of

title 10 of the Code of Federal Regulations (10 CFR) Notice for public comment; State

consultation, are sufficient to support the proposed determinations that these

amendment requests involve NSHC. Under the Commissions regulations in

10 CFR 50.92, operation of the facilities in accordance with the proposed amendments

would not (1) involve a significant increase in the probability or consequences of an

accident previously evaluated; or (2) create the possibility of a new or different kind of

accident from any accident previously evaluated; or (3) involve a significant reduction in

a margin of safety.

The Commission is seeking public comments on these proposed determinations.

Any comments received within 30 days after the date of publication of this notice will be

considered in making any final determinations.

Normally, the Commission will not issue the amendments until the expiration of

60 days after the date of publication of this notice. The Commission may issue any of

these license amendments before expiration of the 60-day period provided that its final

determination is that the amendment involves NSHC. In addition, the Commission may

issue any of these amendments prior to the expiration of the 30-day comment period if

circumstances change during the 30-day comment period such that failure to act in a

timely way would result, for example in derating or shutdown of the facility. If the

Commission takes action on any of these amendments prior to the expiration of either

the comment period or the notice period, it will publish in the Federal Register a notice of

4 issuance. If the Commission makes a final NSHC determination for any of these

amendments, any hearing will take place after issuance. The Commission expects that

the need to take action on any amendment before 60 days have elapsed will occur very

infrequently.

A. Opportunity to Request a Hearing and Petition for Leave to Intervene

Within 60 days after the date of publication of this notice, any person (petitioner)

whose interest may be affected by any of these actions may file a request for a hearing

and petition for leave to intervene (petition) with respect to that action. Petitions shall be

filed in accordance with the Commissions Agency Rules of Practice and Procedure in

10 CFR part 2. Interested persons should consult a current copy of 10 CFR 2.309. If a

petition is filed, the Commission or a presiding officer will rule on the petition and, if

appropriate, a notice of a hearing will be issued.

Petitions must be filed no later than 60 days from the date of publication of this

notice in accordance with the filing instructions in the Electronic Submissions (E -Filing)

section of this document. Petitions and motions for leave to file new or amended

contentions that are filed after the deadline will not be entertained absent a

determination by the presiding officer that the filing demonstrates good cause by

satisfying the three factors in 10 CFR 2.309(c)(1)(i) through (iii).

If a hearing is requested, and the Commission has not made a final

determination on the issue of no significant hazards consideration, the Commission will

make a final determination on the issue of no significant hazards consideration, which

will serve to establish when the hearing is held. If the final determination is that the

amendment request involves no significant hazards consideration, the Commission may

issue the amendment and make it immediately effective, notwithstanding the request for

a hearing. Any hearing would take place after issuance of the amendment. If the final

5 determination is that the amendment request involves a significant hazards

consideration, then any hearing held would take place before the issuance of the

amendment unless the Commission finds an imminent danger to the health or safety of

the public, in which case it will issue an appropriate order or rule under 10 CFR part 2.

A State, local governmental body, Federally recognized Indian Tribe, or

designated agency thereof, may submit a petition to the Commission to participate as a

party under 10 CFR 2.309(h) no later than 60 days from the date of publication of this

notice. Alternatively, a State, local governmental body, Federally recognized Indian

Tribe, or agency thereof may participate as a non-party under 10 CFR 2.315(c).

For information about filing a petition and about participation by a person not a

party under 10 CFR 2.315, see ADAMS Accession No. ML20340A053

(https://adamswebsearch2.nrc.gov/webSearch2/main.jsp?AccessionNumber=ML20340A

053) and on the NRCs public website at

https://www.nrc.gov/about-nrc/regulatory/adjudicatory/hearing.html#participate.

B. Electronic Submissions (E-Filing)

All documents filed in NRC adjudicatory proceedings, including documents filed

by an interested State, local governmental body, Federally recognized Indian Tribe, or

designated agency thereof that requests to participate under 10 CFR 2.315(c), must be

filed in accordance with 10 CFR 2.302. The E -Filing process requires participants to

submit and serve all adjudicatory documents over the internet, or in some cases, to mail

copies on electronic storage media, unless an exemption permitting an alternative fili ng

method, as further discussed, is granted. Detailed guidance on electronic submissions is

located in the Guidance for Electronic Submissions to the NRC (ADAMS Accession

No. ML13031A056) and on the NRCs public website at https://www.nrc.gov/site-help/e-

submittals.html.

6 To comply with the procedural requirements of E -Filing, at least 10 days prior to

the filing deadline, the participant should contact the Office of the Secretary by email at

Hearing.Docket@nrc.gov, or by telephone at 301-415-1677, to (1) request a digital

identification (ID) certificate, which allows the participant (or its counsel or

representative) to digitally sign submissions and access the E -Filing system for any

proceeding in which it is participating; and (2) advise the Secretary that the participant

will be submitting a petition or other adjudicatory document (even in instances in which

the participant, or its counsel or representative, already holds an NRC -issued digital ID

certificate). Based upon this information, the Secretary will establish an e lectronic docket

for the proceeding if the Secretary has not already established an electronic docket.

Information about applying for a digital ID certificate is available on the NRCs

public website at https://www.nrc.gov/site-help/e -submittals/getting-started.html. After a

digital ID certificate is obtained and a docket created, the participant must submi t

adjudicatory documents in Portable Document Format. Guidance on submissions is

available on the NRCs public website at https://www.nrc.gov/site-help/electronic -sub-ref -

mat.html. A filing is considered complete at the time the document is submitted through

the NRCs E-Filing system. To be timely, an electronic filing must be submitted to the

E-Filing system no later than 11:59 p.m. ET on the due date. Upon receipt of a

transmission, the E-Filing system time-stamps the document and sends the submitter an

email confirming receipt of the document. The E -Filing system also distributes an email

that provides access to the document to the NRCs Office of the General Counsel and

any others who have advised the Office of the Secretary that they wish to participate in

the proceeding, so that the filer need not serve the document on those participants

separately. Therefore, applicants and other participants (or their counsel or

7 representative) must apply for and receive a digital ID certificate before adjudicatory

documents are filed to obtain access to the documents via the E -Filing system.

A person filing electronically using the NRCs adjudicatory E-Filing system may

seek assistance by contacting the NRCs Electronic Filing Help Desk through the

Contact Us link located on the NRCs public website at https://www.nrc.gov/site-help/e-

submittals.html, by email to MSHD.Resource@nrc.gov, or by a toll -free call at

1-866-672-7640. The NRC Electronic Filing Help Desk is available between 9 a.m. and

6 p.m., ET, Monday through Friday, except Federal holidays.

Participants who believe that they have good cause for not submitting documents

electronically must file an exemption request, in accordance with 10 CFR 2.302(g), with

their initial paper filing stating why there is good cause for not filing electronically and

requesting authorization to continue to submit documents in paper format. Such filings

must be submitted in accordance with 10 CFR 2.302(b) -(d). Participants filing

adjudicatory documents in this manner are responsible for serving their documents on all

other participants. Participants granted an exemption under 10 CFR 2.302(g)(2) must

still meet the electronic formatting requirement in 10 CFR 2.302(g)(1), unless the

participant also seeks and is granted an exemption from 10 CFR 2.302(g)(1).

Documents submitted in adjudicatory proceedings will appear in the NRCs

electronic hearing docket, which is publicly available at https://adams.nrc.gov/ehd,

unless excluded pursuant to an order of the presiding officer. If you do not have an

NRC-issued di gital ID certificate as previously described, click cancel when the link

requests certificates and you will be automatically directed to the NRCs electronic

hearing docket where you will be able to access any publicly available documents in a

particular hearing docket. Participants are requested not to include personal privacy

information such as social security numbers, home addresses, or personal phone

8 numbers in their filings unless an NRC regulation or other law requires submission of

such information. With respect to copyrighted works, except for limited excerpts that

serve the purpose of the adjudicatory filings and would constitute a Fair Use applic ation,

participants should not include copyrighted materials in their submission.

The following table provides the plant name, docket number, date of application,

ADAMS accession number, and location in the application of the licensees proposed

NSHC determinations. For further details with respect to these license amendment

applications, see the applications for amendment, which are available for public

inspection in ADAMS. For additional direction on accessing information related to this

document, see the Obtaining Information and Submitting Comments section of this

document.

License Amendment Requests

Duke Energy Carolinas, LLC; Catawba Nuclear Station, Units 1 and 2; York County, SC Docket Nos. 50-413, 50-414 Application date June 18, 2024 ADAMS Accession No. ML24170A696 Location in Application of NSHC Pages 7-8 of the Enclosure The proposed amendments would revise Catawba's Units 1 and 2 Technical Specification (TS) 3.4.3, RCS Pressure and Temperature (P/T) Limits, to reflect an Brief Description of Amendments update to the P/T limit curves in Figures 3.4.3-1 (Unit 2 only) and 3.4.3-2 (Unit 2 only). The proposed amendments will also reflect that the revised Catawba Unit 2 P/T limit curves in TS 3.4.3 are applicable until 54 effective full power years.

Proposed Determination NSHC Name of Attorney for Licensee, Mailing Tracey Mitchell LeRoy, Deputy General Address Counsel, Duke Energy Corporation, 525 S.

Tryon Street., Charlotte, NC 28210 NRC Project Manager, Telephone Number Jack Minzer Bryant, 301-415-0610

9 Entergy Operations, Inc.; Waterford Steam Electric Station, Unit 3; St. Charles Parish, LA Docket No. 50-382 Application date May 8, 2024 ADAMS Accession No. ML24129A039 Location in Application of NSHC Pages 13-14 of the Enclosure The proposed amendment would change four surveillance frequencies associated with specific Waterford Steam Electric Station, Unit 3 (Waterford 3), technical specifications surveillances, to instead be performed in accordance with the Surveillance Frequency Control Program.

Brief Description of Amendment These changes were originally intended to have been addressed in the Waterford 3 license amendment request for TSTF-425, Relocate Surveillance Frequencies to Licensee Control - Risk-Informed Technical Specification Task Force (RITSTF) Initiative 5b (ADAMS Package Accession No. ML15170A121), dated June 17, 2015.

Proposed Determination NSHC Name of Attorney for Licensee, Mailing Susan Raimo, Associate General Counsel -

Address Nuclear, 101 Constitution Avenue, NW, Washington, DC 20001 NRC Project Manager, Telephone Number Jason Drake, 301-415-8378 NextEra Energy Point Beach, LLC; Point Beach Nuclear Plant, Units 1 and 2; Manitowoc County, WI Docket Nos. 50-266, 50-301 Application date July 24, 2024 ADAMS Accession No. ML24206A109 Location in Application of NSHC Pages 2-3 of Enclosure The proposed amendments would request adoption of Technical Specifications Task Brief Description of Amendments Force (TSTF) Traveler, TSTF-577, Revision 1, Revised Frequencies for Steam Generator Tube Inspections.

Proposed Determination NSHC Name of Attorney for Licensee, Mailing Steven Hamrick, Senior Attorney, 801 Address Pennsylvania Ave., NW, Suite 220 Washington, DC 20004 NRC Project Manager, Telephone Number Scott Wall, 301-415-2855 Nine Mile Point Nuclear Station, LLC and Constellation Energy Generation, LLC; Nine Mile Point Nuclear Station, Unit 1; Oswego County, NY Docket No. 50-220 Application date June 13, 2024 10 ADAMS Accession No. ML24165A223 Location in Application of NSHC Pages 4-5 of Attachment 1 The proposed amendment would modify the Nine Mile Point Nuclear Station, Unit 1 (NMP1) technical specifications (TSs) by adopting Technical Specification Task Force (TSTF)-230, Revision 1, Add New Condition B to LCO [Limiting Condition for Operation] 3.6.2.3, RHR Suppression Pool Cooling. The TSTF modifies improved TS (ITS) 3.6.2.3, Residual Heat Removal (RHR) Suppression Pool Cooling, to allow Brief Description of Amendment two RHR suppression pool cooling subsystems to be inoperable for eight hours.

NMP1 does not have ITSs; therefore, the applicable LCO for NMP1 is TS LCO 3.3.7, Containment Spray System. Additionally, a new specification is proposed to be added that will direct operators to place the unit in Shutdown Condition - Hot within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and Shutdown Condition - Cold in 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months if applicable specifications are not met.

Proposed Determination NSHC Jason Zorn, Associate General Counsel, Name of Attorney for Licensee, Mailing Constellation Energy Generation, LLC, 101 Address Constitution Ave, NW, Suite 400 East, Washington, DC 20001 NRC Project Manager, Telephone Number Richard Guzman, 301-415-1030 Southern Nuclear Operating Company, Inc.; Joseph M. Farley Nuclear Plant, Units 1 and 2; Houston County, AL Docket Nos. 50-348, 50 -364 Application date June 28, 2024 ADAMS Accession No. ML24180A204 Location in Application of NSHC Pages E-14 to E-16 of Enclosure The proposed amendments would modify Joseph M. Farley Nuclear Plant, Units 1 and 2, technical specification requirements Brief Description of Amendments related to direct current (DC) electrical systems in accordance with Technical Specifications Task Force (TSTF) Traveler TSTF-500, Revision 2, DC Electrical Rewrite-Update to TSTF-360.

Proposed Determination NSHC Name of Attorney for Licensee, Mailing Millicent Ronnlund, Vice President and Address General Counsel, Southern Nuclear

11 Operating Co., Inc., P.O. Box 1295, Birmingham, AL 35201-1295 NRC Project Manager, Telephone Number Zachary Turner 415-6303 Southern Nuclear Operating Company, Inc.; Vogtle Electric Generating Plant, Units 3 and 4; Burke County, GA Docket Nos.52-025, 52-026 Application date June 21, 2024 ADAMS Accession No. ML24173A220 Location in Application of NSHC Pages E-9 and E-11 of Enclosure The proposed amendments would revise the Combined License, Technical Specifications (TS) 3.7.6, Main Control Room Emergency Habitability System Brief Description of Amendments (VES), Action E and Surveillance Requirement 3.7.6.5, and the Updated Final Safety Analysis Report subsection 6.4.5.3, Air Quality Testing for Vogtle Electric Generating Plant, Units 3 and 4.

Proposed Determination NSHC Millicent Ronnlund, Vice President and Name of Attorney for Licensee, Mailing General Counsel, Southern Nuclear Address Operating Co., Inc., P.O. Box 1295, Birmingham, AL 35201-1295 NRC Project Manager, Telephone Number John Lamb, 301-415-3100 Southern Nuclear Operating Company, Inc.; Vogtle Electric Generating Plant, Units 3 and 4; Burke County, GA Docket Nos.52-025, 52-026 Application date July 25, 2024 ADAMS Accession No. ML24207A252 Location in Application of NSHC Pages E-7 to E-9 of Enclosure The proposed amendments would revise the Vogtle Electric Generating Plant, Units 3 and 4, Combined License Appendix A Brief Description of Amendments Technical Specification 3.7.6, Main Control Room Emergency Habitability System (VES), Action A and Surveillance Requirement 3.7.6.6 related to inoperable valves and/or dampers.

Proposed Determination NSHC Millicent Ronnlund, Vice President and Name of Attorney for Licensee, Mailing General Counsel, Southern Nuclear Address Operating Co., Inc., P.O. Box 1295, Birmingham, AL 35201-1295 NRC Project Manager, Telephone Number John Lamb, 301-415-3100 Tennessee Valley Authority; Watts Bar Nuclear Plant, Units 1 and 2; Rhea County, TN 12 Docket Nos. 50-390, 50-391 Application date June 25, 2024 ADAMS Accession No. ML24178A413 Location in Application of NSHC Pages E8 - E9 of the Enclosure The proposed amendments would revise Watts Bar, Units 1 and 2, Technical Specification (TS) 3.8.1, AC [alternating current] Sources - Operating, by adopting Technical Specification Task Force (TSTF)

Traveler TSTF-276-A, Revision 2, Revise DG [diesel generator] full load rejection test. Specifically, the proposed amendments would revise the notes to Surveillance Requirement (SR) 3.8.1.9, for the DG single largest load rejection test, SR 3.8.1.10, for the DG full load rejection test, Brief Description of Amendments and SR 3.8.1.14, for the DG endurance and margin test, to require that these SRs be performed at a specified power factor of 0.9 with clarifications addressing situations when the power factor cannot be achieved.

The proposed amendments would also revise SR 3.8.1.10 and SR 3.8.1.14 to remove the surveillance kVAR ranges and modify the note to SR 3.8.1.18 to allow for the surveillance to be performed in Modes 1, 2, 3, or 4 to reestablish operability provided an assessment of plant safety is performed.

Proposed Determination NSHC David Fountain, Executive VP and General Name of Attorney for Licensee, Mailing Counsel, Tennessee Valley Authority, 6A Address West Tower, 400 West Summit Hill Drive, Knoxville, TN 37902 NRC Project Manager, Telephone Number Kimberly Green, 301-415-1627 Union Electric Company; Callaway Plant, Unit 1; Callaway County, MO Docket No. 50-483 Application date June 6, 2024 ADAMS Package Accession No. ML24158A521 (Package)

Location in Application of NSHC Pages 2-4 of the Enclosure The proposed amendment would adopt Technical Specifications Task Force (TSTF)

Traveler TSTF-569, Revision 2, Revise Brief Description of Amendment Response Time Testing Definition, which is an approved change to the Standard Technical Specifications for Westinghouse pressurized-water reactor nuclear power

13 plants. The proposed changes are related to the purpose and past use of several related topical reports, including WCAP-13632-P-A, Revision 2, Elimination of Pressure Sensor Response Time Testing Requirements, and WCAP-14036-P-A, Elimination of Periodic Protection Channel Response Time Tests, as applicable to the Callaway Plant, Unit 1.

Together, these topical reports justify eliminating response time testing for applicable instrument loops/channels, for all applicable devices/components in the loops/channels, within the reactor trip system and engineered safety features actuation system. The topical reports provided detailed information that forms the basis for the methodology contained in TSTF-569, Revision 2 ( ADAMS Accession No. ML19176A034), which provides a means for allowing use of bounding response times (in lieu of being measured) for newer/redesigned components in the applicable instrument loops/channels.

Proposed Determination NSHC Name of Attorney for Licensee, Mailing Jay E. Silberg, Pillsbury Winthrop Shaw Address Pittman LLP, 1200 17th St., NW, Washington, DC 20036 NRC Project Manager, Telephone Number Mahesh Chawla, 301-415-8371 Vistra Operations Company LLC; Davis-Besse Nuclear Power Station, Unit 1; Ottawa County, OH Docket No. 50-346 Application date July 8, 2024 ADAMS Accession No. ML24191A432 Location in Application of NSHC Pages 4-5 of Attachment 1 The proposed amendment would remove Brief Description of Amendment the table of contents from technical specification and place it under licensee control.

Proposed Determination NSHC Name of Attorney for Licensee, Mailing Roland Backhaus, Senior lead Counsel-Address Nuclear, Vistra Corp., 325 7th Street, NW, Suite 520, Washington, DC 20004 NRC Project Manager, Telephone Number Scott Wall, 301-415-2855

14 III. Notice of Issuance of Amendments to Facility Operating Licenses and

Combined Licenses

During the period since publication of the last monthly notice, the Commission

has issued the following amendments. The Commission has determined for each of

these amendments that the application complies with the standards and requirements of

the Atomic Energy Act of 1954, as amended (the Act), and the Commissions rules and

regulations. The Commission has made appropriate findings as required by the Act and

the Commissions rules and regulations in 10 CFR chapter I, which are set forth in the

license amendment.

A notice of consideration of issuance of amendment to facility operating license

or combined license, as applicable, proposed NSHC determination, and opportunity for a

hearing in connection with these actions, were published in the Federal Register as

indicated in the safety evaluation for each amendment.

Unless otherwise indicated, the Commission has determined that these

amendments satisfy the criteria for categorical exclusion in accordance with

10 CFR 51.22. Therefore, pursuant to 10 CFR 51.22(b), no environmental impact

statement or environmental assessment need be prepared for these amendments. If the

Commission has prepared an environmental assessment under the special

circumstances provision in 10 CFR 51.22(b) and has made a determination based on

that assessment, it is so indicated in the safety evaluation for the amendment.

For further details with respect to each action, see the amendment and

associated documents such as the Commissions letter and safety evaluation, which

may be obtained using the ADAMS accession numbers indicated in the following table.

The safety evaluation will provide the ADAMS accession numbers for the application for

amendment and the Federal Register citation for any environmental assessment. All of

15 these items can be accessed as described in the Obtaining Information and Submitting

Comments section of this document.

License Amendment Issuances

Constellation Energy Generation, LLC; Limerick Generating Station, Units 1 and 2; Montgomery County, PA Docket Nos. 50-352, 50-353 Amendment Date July 29, 2024 ADAMS Accession No. ML24204A071 Amendment Nos. 263 (Unit1), 225 (Unit 2)

The amendments revised the technical specifications by replacing automatic main steam isolation valve isolation requirements Brief Description of Amendments with a monitoring requirement and a manual shutdown if the turbine enclosure main steam line tunnel temperature exceeds a certain value and main steam line pressure boundary leakage is detected.