IR 05000440/2025402
| ML25351A128 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 12/17/2025 |
| From: | Jasmine Gilliam NRC/RGN-III/DORS/EB2 |
| To: | Tony Brown Vistra Operations Company |
| References | |
| IR 2025402 | |
| Download: ML25351A128 (0) | |
Text
SUBJECT:
PERRY NUCLEAR POWER PLANT - CYBER SECURITY INSPECTION REPORT 05000440/2025402
Dear Terry Brown:
On September 26, 2025, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Perry Nuclear Power Plant. On September 29, 2025, the NRC inspectors discussed the results of this inspection with Darin Benyak, Plant General Manager, and other members of your staff. The results of this inspection are documented in the enclosed report.
Due to the temporary cessation of government operations, which commenced on October 01, 2025, the NRC began operating under its Office of Management and Budget-approved plan for operations during a lapse in appropriations. Consistent with that plan, the NRC operated at reduced staffing levels throughout the duration of the shutdown. However, the NRC continued to perform critical health and safety functions and make progress on other high-priority activities associated with the ADVANCE Act and Executive Order 14300.
On November 13, 2025, following the passage of a continuing resolution, the NRC resumed normal operations. However, due to the 43-day lapse in normal operations, the Office of Nuclear Reactor Regulation granted the Regional Offices an extension on the issuance of the calendar year 2025 inspection reports that should have been issued by November 13, 2025, to December 31, 2025. The NRC resumed the routine cycle of issuing inspection reports on November 13, 2025.
Three findings of very low security significance (Green) are documented in this report. Three of these findings involved violations of NRC requirements. We are treating these violations as non-cited violations (NCVs) 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 Perry Nuclear Power Plant.
December 17, 2025 The following cross cutting aspects were assigned to findings using Inspection Manual Chapter 0310 Aspects Within Cross Cutting Areas: one [H.3] - Change Management and one [H.5] - Work Management.
If you disagree with a cross-cutting aspect assignment in this report, you should provide a response within 30 days of the date of this inspection report, with the basis for your disagreement, 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 Nuclear Security and Incident Response; and the NRC Resident Inspector at Perry Nuclear Power Plant.
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.
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 No. 05000440 License No. NPF-58 Enclosure:
As stated cc: V. Forbus, Site Security Manager Perry Nuclear Power Plant C. Salz, State Liaison Officer Ohio Emergency Management Agency cc w/o encl: Distribution via LISTSERV Signed by Gilliam, Jasmine on 12/17/25