IR 05000454/2024401

Cyber Security Inspection Report 05000454/2024401 and 05000455/2024401 (Public)

ML24092A379
Person / Time
Site:	Byron
Issue date:	04/03/2024
From:	Jasmine Gilliam NRC/RGN-III/DORS/EB2
To:	Rhoades D Constellation Energy Generation
References
IR 2024401
Download: ML24092A379 (1)

Text

SUBJECT:

BYRON STATION - CYBER SECURITY INSPECTION REPORT 05000454/2024401 AND 05000455/2024401

Dear David Rhoades:

On February 29, 2024, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Byron Station and discussed the results of this inspection with Drew Kolste and other members of your staff. The results of this inspection are documented in the enclosed report.

One finding of very low security significance (Green) is documented in this report. This finding involved a violation of NRC requirements. We are treating this violation as a non-cited violation (NCV) consistent with Section 2.3.2 of the Enforcement Policy.

A licensee-identified violation which was determined to be of very low security significance is documented in this report. We are treating this violation as a non-cited violation (NCV)

consistent with Section 2.3.2 of the Enforcement Policy.

If you contest the violations or the significance or severity of the violations documented in this inspection report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington, DC 20555-0001; with copies to the Regional Administrator, Region III; the Director, Office of Enforcement; the Director, Office of Nuclear Security and Incident Response; and the NRC Resident Inspector at Byron Station.

This letter will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.April 3, 2024 The enclosed report contains Security-Related Information, so the enclosed report will not be made publicly available in accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390(d)(1). If you choose to provide a response that contains Security-Related Information, please mark your entire response Security-Related Information-Withhold from public disclosure under 10 CFR 2.390 in accordance with 10 CFR 2.390(d)(1) and follow the instructions for withholding in 10 CFR 2.390(b)(1). The NRC is waiving the affidavit requirements for your response in accordance with 10 CFR 2.390(b)(1)(ii).

Sincerely, Jasmine A. Gilliam, Chief Engineering Branch 2 Division of Operating Reactor Safety Docket Nos. 05000454 and 05000455 License Nos. NPF-37 and NPF-66 Enclosure:

As stated cc: C. Catencamp, Byron Station Security Manager A. Khayyat, State Liaison Officer, Illinois Emergency Management Agency cc w/o encl: Distribution via LISTSERV Signed by Gilliam, Jasmine on 04/03/24

ML24092A379 (Cover letter)

Entire Report: Non-Sensitive Publicly Available SUNSI Review Sensitive Non-Publicly Available Cover Letter Only: Non-Sensitive Publicly Available SUNSI Review Sensitive Non-Publicly Available OFFICE RIII RIII NAME ADahbur:sw JGilliam DATE 04/02/2024 04/03/2024