| | Start date | Site | Title | Topic |
|---|
| IR 05000282/2025004 | 10 February 2026 | Prairie Island | Integrated Inspection Report 05000282/2025004 and 05000306/2025004 | Stroke time Past operability Enforcement Discretion Probabilistic Risk Assessment Functionality Assessment Aging Management Significance Determination Process Operability Determination License Renewal Through-Wall Leak Fire Protection Program |
| ML26030A013 | 6 February 2026 | Duane Arnold | Restart - Environmental Audit Plan | Zebra Mussel License Renewal |
| NLS2026009, Request for Notice of Enforcement Discretion for Technical Specifications Limiting Condition for Operation 3.8.1, AC Sources - Operating | 4 February 2026 | Cooper | Request for Notice of Enforcement Discretion for Technical Specifications Limiting Condition for Operation 3.8.1, AC Sources - Operating | Enforcement Discretion Probabilistic Risk Assessment Large early release frequency Loss of Offsite Power Offsite Circuit |
| ML26009A033 | 16 January 2026 | Davis Besse | Issuance of Amendment No. 310 for One-Time Change to Technical Specification 3.8.1 Action A.3 | Safe Shutdown Anticipated operational occurrence Probabilistic Risk Assessment Loss of Offsite Power Offsite Circuit |
| 05000461/LER-2025-004, Emergency Diesel Generator Automatic Start Due to Emergency Reserve Auxiliary Transformer Trip | 13 January 2026 | Clinton | Emergency Diesel Generator Automatic Start Due to Emergency Reserve Auxiliary Transformer Trip | |
| IR 05000346/2025003 | 22 December 2025 | Davis Besse | Integrated Inspection Report 05000346/2025003 07200014/2025001 and Exercise of Enforcement Discretion | Enforcement Discretion Nondestructive Examination Functionality Assessment Aging Management Missed surveillance Significance Determination Process Foreign Material Exclusion Process Control Program Stress corrosion cracking Operability Determination License Renewal Fire Protection Program |
| L-2025-178, Submittal of Environmental Report in Support of Restart | 10 November 2025 | Duane Arnold | Submittal of Environmental Report in Support of Restart | Safe Shutdown Offsite Dose Calculation Manual Cyber Security Sewage Treatment Plant Annual Radiological Environmental Operating Report License Renewal Exemption Request Subsequent License Renewal Fire Protection Program Accident Tolerant Fuel Spill |
| ML25307A026 | 30 October 2025 | Cook | Updated Final Safety Analysis Report (Ufsar), Revision 33, Chapter 1, Introduction and Summary | Safe Shutdown Boric Acid Shutdown Margin Grab sample Offsite Dose Calculation Manual Tornado Missile Safe Shutdown Earthquake Probabilistic Risk Assessment Operating Basis Earthquake Incorporated by reference Tornado Generated Missile Tornado Missile Protection Design basis earthquake TORMIS Earthquake Turbine Missile Fuel cladding Pressure Boundary Leakage Fire Protection Program Power change Overspeed Control Room Habitability Operational convenience Leak-Before-Break |
| ML25307A047 | 30 October 2025 | Cook | Updated Final Safety Analysis Report (Ufsar), Revision 33, Chapter 8, Electrical Systems | Safe Shutdown Operator Manual Action Emergency Lighting Open Phase Condition Loss of Offsite Power Battery sizing Commercial Grade Overspeed trip |
| L-25-190, Vistra Operations Company LLC (Vistra Opco), License Amendment Request - Alternative Technical Specification (TS) 3.8.1 Action A.3 Completion Time for an Inoperable Offsite Source | 22 October 2025 | Davis Besse | Vistra Operations Company LLC (Vistra Opco), License Amendment Request - Alternative Technical Specification (TS) 3.8.1 Action A.3 Completion Time for an Inoperable Offsite Source | Boric Acid Anticipated operational occurrence Internal Flooding Probabilistic Risk Assessment Qualified Offsite Circuit FLEX Loss of Offsite Power Offsite Circuit |