# Constellation Energy Generation, LLC; Limerick Generating Station, Unit 1; License Amendment Application; Withdrawal by Applicant
**AGENCY:**
Nuclear Regulatory Commission.
**ACTION:**
Notice.
**SUMMARY:**
The U.S. Nuclear Regulatory Commission (NRC) has granted the request of Constellation Energy Generation, LLC, to withdraw its application dated October 9, 2025, for a proposed amendment to Renewed Facility Operating License No. NPF-39. The licensee requested to withdraw its license amendment request to modify the facility technical specifications to allow a one-time extension to performing local leakage rate tests for four primary containment isolation valves.
**DATES:**
This document was published in the *Federal Register* on February 25, 2026.
**ADDRESSES:**
Please refer to Docket ID NRC-2026-0793 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-2026-0793. Address questions about Docket IDs in *Regulations.gov* to Bridget Curran; telephone: 301-415-1003; email: *[email protected].* For technical questions, contact the individual(s) 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 ADAMS Public Search.” For problems with ADAMS, please contact the NRC's Public Document Room (PDR) reference staff at 1-800-397-4209, at 301-415-4737, or by email to *[email protected].* 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.
• *NRC's 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 *[email protected]* 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.
**FOR FURTHER INFORMATION CONTACT:**
Audrey L. Klett, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001; telephone: 301-415-0489; email: *[email protected].*
**SUPPLEMENTARY INFORMATION:**
The NRC has granted Constellation Energy Generation, LLC's (the licensee's), request dated January 30, 2026 (ML26030A252), to withdraw its application dated October 9, 2025 (ML25282A072) for a proposed amendment to Renewed Facility Operating License No. NPF-39 for the Limerick Generation Station, Unit 1, located in Limerick, PA.
The licensee requested the NRC to modify the facility technical specifications to allow a one-time extension to performing local leakage rate tests for four primary containment isolation valves.
A notice of consideration of issuance and proposed no significant hazards consideration determination for the license amendment request was published in the *Federal Register* (91 FR 2375) on January 20, 2026.
For the Nuclear Regulatory Commission.
Dated: February 23, 2026.
Audrey Klett,
Senior Project Manager, Plant Licensing Branch I, Division of Operating Reactor Licensing, Office of Nuclear Reactor Regulation.