TS-3.7.7

TS-3.7.7

TS-3.0.3, TS-3.0.4, TS-3.1.6, TS-3.1.7, TS-3.3.1.1, TS-3.3.3, TS-3.3.4, TS-3.3.6, TS-3.3.6.3, TS-3.4.1, TS-3.4.3, TS-3.5.1, TS-3.5.2, TS-3.5.3, TS-3.6.2.5, TS-3.7.1, TS-3.7.1.2, TS-3.7.3, TS-3.7.5, TS-3.7.7, TS-3.8.1

	Start date	Site	Title	System
ML25272A050	29 September 2025	Nine Mile Point	Request for Additional Information LAR to Revise TS 3.3.6.1 and Add New TS 3.7.7. Main Steam Line Area Temperature	Primary containment Main Steam Line Main Steam
ML25260A487	17 September 2025	Technical Specifications Task Force 99902042	Correction to TSTF-585, Revision 5, Revise LCO 3.0.3 to Require Managing Risk	Steam Generator Reactor Coolant System Feedwater Service water Reactor Protection System Main Steam Isolation Valve Auxiliary Feedwater High Pressure Core Spray Residual Heat Removal Circulating Water System Emergency Core Cooling System Decay Heat Removal Main Steam Line
ML25258A105	15 September 2025	Grand Gulf	(GGNS) Core Operating Limits Report (COLR) Cycle 25, Revision 1	Feedwater
TSTF-25-06, TSTF Response to NRC Request for Additional Information on TSTF-585, Revision 4, Revise LCO 3.0.3 to Require Managing Risk and Transmittal of Revision 5	10 September 2025	Technical Specifications Task Force 99902042	TSTF Response to NRC Request for Additional Information on TSTF-585, Revision 4, Revise LCO 3.0.3 to Require Managing Risk and Transmittal of Revision 5	Steam Generator Reactor Coolant System Feedwater Service water Reactor Protection System Main Steam Isolation Valve Auxiliary Feedwater High Pressure Core Spray Residual Heat Removal Circulating Water System Emergency Core Cooling System Decay Heat Removal Main Steam Line
ML25230A081	2 September 2025	Vogtle	Units 3 and 4 — Issuance of Amendment to Revise Technical Specification 3.3.15 and 3.3.16	Steam Generator Reactor Coolant System Feedwater Residual Heat Removal Automatic Depressurization System
L-25-128, Application to Revise Technical Specifications to Adopt TST-597, Eliminate LCO 3.0.3 Mode 2 Requirement	19 August 2025	Perry	Application to Revise Technical Specifications to Adopt TST-597, Eliminate LCO 3.0.3 Mode 2 Requirement
IR 05000498/2025002	12 August 2025	South Texas 07201041	– Integrated Inspection Report 05000498/2025002 and 05000499/2025002 and Independent Spent Fuel Storage Installation 07201041/2024001 and Exercise of Enforcement Discretion	Steam Generator Reactor Coolant System Reactor Protection System Emergency Diesel Generator Auxiliary Feedwater HVAC Residual Heat Removal Emergency Core Cooling System Control Room Envelope Control Rod Containment Spray
ML25217A453	5 August 2025	Nine Mile Point	Individual Notice for License Amendment Request Main Steam Line Tunnel Area Temperature - High Isolation Function (EPID L-2025-LLA-0110) - Transmittal of FRN (8/5/2025)	Main Steam Isolation Valve Primary containment Main Steam Line
ML25212A096	31 July 2025	Nine Mile Point	Acceptance Review Determination LAR to Eliminate the Requirement for Automatic Main Steam Line Isolation Based on MSL Area Temperature	Primary containment Main Steam Line
ML25141A201	30 May 2025		Monthly (28-day) Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: June 10, 2025	Steam Generator Service water Main Steam Isolation Valve Main Steam Line Rod Worth Minimizer Control Rod Containment Spray
ML25085A422	22 May 2025	05200050	SDAA - FSER Chapter 16 - Technical Specifications	Steam Generator Reactor Coolant System Feedwater Secondary containment Reactor Protection System Emergency Diesel Generator Main Steam Isolation Valve Primary containment Shutdown Cooling HVAC Reactor Pressure Vessel Residual Heat Removal Automatic Depressurization System Remote shutdown Emergency Core Cooling System Decay Heat Removal Main Steam Line Control Room Envelope Control Rod Main Steam Containment Spray
05000499/LER-2024-002-01, Two Control Room Envelope HVAC Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function	12 May 2025	South Texas	Two Control Room Envelope HVAC Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function	HVAC Control Room Envelope
IR 05000456/2025001	1 May 2025	Braidwood	Integrated Inspection Report 05000456/2025001 and 05000457/2025001	Steam Generator Service water Emergency Diesel Generator Auxiliary Feedwater HVAC Residual Heat Removal Containment Spray
ML25087A128	24 April 2025	Oconee	Issuance of Amendment Nos. 431, 433, 432, Revise Technical Specification 3.7.7	Steam Generator Reactor Coolant System Feedwater Service water Main Turbine Emergency Core Cooling System Decay Heat Removal Emergency Feedwater System
ML25091A289	9 April 2025	Saint Lucie	Regulatory Audit Plan in Support of License Amendment Request for Licensing Basis Changes in Support of St. Lucie Unit 2 Transition to 24-Month Fuel Cycles	Feedwater Main Steam Isolation Valve Auxiliary Feedwater Control Room Emergency Ventilation Shield Building Remote shutdown Emergency Core Cooling System Containment Spray
05000498/LER-2025-001, Two Inoperable Emergency Core Cooling System Trains Resulting in Potential Loss of Safety Function	7 April 2025	South Texas	Two Inoperable Emergency Core Cooling System Trains Resulting in Potential Loss of Safety Function	HVAC Emergency Core Cooling System Control Room Envelope
ML25079A225	20 March 2025	Millstone	License Amendment Request to Revise Technical Specifications Related to Control Building Isolation, Accident Monitoring Instrumentation Accumulator and Refueling Water Storage Tank Boron Concentration	Steam Generator Reactor Coolant System Secondary containment Emergency Diesel Generator Auxiliary Feedwater Primary containment Control Room Emergency Ventilation Shield Building Emergency Gas Treatment System Emergency Core Cooling System Main Steam Line Control Room Envelope Control Rod Main Steam
NL-25-0068, Cycle 29 Core Operating Limits Report Version 1	20 March 2025	Hatch	Cycle 29 Core Operating Limits Report Version 1	Feedwater Main Turbine Moisture Separator Reheater Control Rod Main Turbine Bypass System
ML25066A098	7 March 2025	Technical Specifications Task Force 99902042	Transmittal of TSTF-585, Revision 4, Revise LCO 3.0.3 to Require Managing Risk	Steam Generator Reactor Coolant System Feedwater Service water Reactor Protection System Main Steam Isolation Valve Auxiliary Feedwater High Pressure Core Spray Residual Heat Removal Circulating Water System Emergency Core Cooling System Decay Heat Removal Main Steam Line
L-2025-020, License Amendment Request 279, Extend Surveillance Test Intervals in Support of Transition to 24 Month Fuel Cycles	3 March 2025	Turkey Point	License Amendment Request 279, Extend Surveillance Test Intervals in Support of Transition to 24 Month Fuel Cycles	Steam Generator Reactor Coolant System Feedwater Emergency Diesel Generator Auxiliary Feedwater Main Turbine Residual Heat Removal Control Room Emergency Ventilation Emergency Core Cooling System Main Steam Line Control Room Envelope Containment Spray
RS-25-010, Constellation Energy Generation - Application to Revise Technical Specifications to Adopt TSTF-597, Revision 0, Eliminate LCO 3.0.3 Mode 2 Requirement	31 January 2025	Peach Bottom Nine Mile Point Limerick Clinton FitzPatrick LaSalle	Constellation Energy Generation - Application to Revise Technical Specifications to Adopt TSTF-597, Revision 0, Eliminate LCO 3.0.3 Mode 2 Requirement	Reactor Coolant System Feedwater Reactor Protection System Primary containment Main Turbine Emergency Core Cooling System Main Steam Line Control Rod
NL-24-0325, License Amendment Request: Move Surveillance Requirements from Technical Specifications (TS) 3.3.15 and 3.3.16 Engineered Safety Feature Actuation System (ESFAS) Actuation Logic	24 January 2025	Vogtle	License Amendment Request: Move Surveillance Requirements from Technical Specifications (TS) 3.3.15 and 3.3.16 Engineered Safety Feature Actuation System (ESFAS) Actuation Logic	Steam Generator Reactor Coolant System Feedwater Residual Heat Removal Automatic Depressurization System Main Steam Safety Valve Decay Heat Removal Main Steam Line Control Rod
ML24305A241	7 January 2025		SDAA Chapter 16 Technical Specifications SE with No Open Items	Steam Generator Reactor Coolant System Feedwater Secondary containment Reactor Protection System Emergency Diesel Generator Main Steam Isolation Valve Primary containment Shutdown Cooling HVAC Reactor Pressure Vessel Residual Heat Removal Automatic Depressurization System Remote shutdown Emergency Core Cooling System Decay Heat Removal Main Steam Line Control Room Envelope Control Rod Main Steam Containment Spray
ML24324A196	26 November 2024	Vogtle	Summary of November 18, 2024, Observation Pre-Submittal Meeting Held with Southern Nuclear Operating Company, Inc., a Proposed License Amendment Request to Change Technical Specifications Related to Engineered Safety Feature Actuation Syste	Feedwater
NMP1L3614, Response to Request for Additional Information for License Amendment Request to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling	22 November 2024	Nine Mile Point	Response to Request for Additional Information for License Amendment Request to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3, RHR Suppression Pool Cooling	Primary containment Core Spray Residual Heat Removal Containment Spray
ML24317A249	18 November 2024	Hatch Vogtle Farley	Southern Nuclear - Presentation Material Supplement - TS Bases	Steam Generator Reactor Coolant System Feedwater Residual Heat Removal Automatic Depressurization System Main Steam Safety Valve Decay Heat Removal Main Steam Line
ML24317A003	12 November 2024	Vogtle	Slides - SNC Presentation - Pre-Submittal Meeting on November 18, 2024 - Proposed Vogtle 3 and 4 SR TS 3.3.15 and TS 3.3.16 Licensing Amendment Request	Feedwater
ML24312A166	7 November 2024	Nine Mile Point	Request for Additional Information (11/7/2024 E-mail) - LAR to Revise TSs to Adopt TSTF-230, Revision 1, Add New Condition B to LCO 3.6.2.3	Residual Heat Removal Containment Spray
ML24248A139	24 September 2024		Monthly (28-day) Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: October 1, 2024	Steam Generator Service water Emergency Diesel Generator Residual Heat Removal
TSTF-24-09, Technical Specifications Bases Change for TSTF-597, Revision 0, Eliminate LCO 3.0.3 Mode 2 Requirement	16 September 2024	Technical Specifications Task Force 99902042	Technical Specifications Bases Change for TSTF-597, Revision 0, Eliminate LCO 3.0.3 Mode 2 Requirement
ML24234A297	21 August 2024	Oconee	August 21, 2024 - Oconee Nuclear Station, Units 1, 2, and 3 - Acceptance of Requested Licensing Action License Amendment Request to Revise Technical Specification 3.7.7	Service water
RA-24-0092, Application to Revise Technical Specification 3.7.7, Low Pressure Service Water (LPSW) System, to Extend the Completion Time for One Required LPSW Pump Inoperable on a One-Time Basis	29 July 2024	Oconee	Application to Revise Technical Specification 3.7.7, Low Pressure Service Water (LPSW) System, to Extend the Completion Time for One Required LPSW Pump Inoperable on a One-Time Basis	Reactor Coolant System Feedwater Service water Main Turbine Circulating Water System Decay Heat Removal
ML24170A783	6 June 2024	Millstone Summer Surry North Anna 07200002 07200055	ISFSI, Virgil C. Summer, Unit 1, and ISFSI, North Anna, Units 1 & 2, and ISFSI, Surry, Units 1 & 2, and ISFSI - Submittal of Revision 36 of the Quality Assurance Topical Report	Reactor Protection System Decay Heat Removal Control Rod
ML24099A219	29 May 2024	Diablo Canyon	Issuance of Amendment Nos. 245 and 247 Revision to TSs to Adopt TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b	Steam Generator Reactor Coolant System Feedwater Main Steam Isolation Valve Auxiliary Feedwater Main Transformer Residual Heat Removal Emergency Core Cooling System Control Room Envelope Containment Spray
ML24150A102	28 May 2024	Hope Creek	Core Operating Limits Report, Reload 25, Cycle 26, Revision 23, Non-Proprietary	Feedwater Reactor Protection System Main Turbine Emergency Core Cooling System Control Rod
ML24142A407	20 May 2024	Hope Creek	License Amendment Request (LAR) - Hope Creek Technical Specification Conversion to NUREG-1433, Revision 5	Feedwater Secondary containment Service water Reactor Protection System Emergency Diesel Generator Reactor Core Isolation Cooling Primary containment Shutdown Cooling Reactor Recirculation Pump Core Spray Residual Heat Removal Automatic Depressurization System Emergency Core Cooling System Main Steam Line Main Condenser Control Rod
ML24081A007	16 May 2024	River Bend	Issuance of Amendment No. 213 Revision to Technical Specifications to Adopt TSTF 505, Revision 2, Provide Risk-Informed Extended Completion Times – RITSTF Initiative 4b	Service water Reactor Protection System Reactor Core Isolation Cooling Primary containment Shutdown Cooling High Pressure Core Spray Residual Heat Removal Automatic Depressurization System Standby Liquid Control Emergency Core Cooling System Main Steam Line Safety Relief Valve Control Room Envelope Control Rod
IR 05000334/2024001	8 May 2024	Beaver Valley	Integrated Inspection Report 05000334/2024001 and 05000412/2024001	Service water Emergency Diesel Generator Auxiliary Feedwater Moisture Separator Reheater Control Rod
ML24191A288	6 May 2024	Callaway	Final Safety Analysis Report Rev. OL-27 and Technical Specification Bases Rev. 25, Operating License Amendment Index	Steam Generator Reactor Coolant System Feedwater Service water Emergency Diesel Generator Main Steam Isolation Valve Auxiliary Feedwater Residual Heat Removal Control Room Emergency Ventilation Fuel Pool Cooling and Cleanup Main Steam Safety Valve Emergency Core Cooling System Decay Heat Removal Main Steam Line Control Room Envelope Control Rod Main Steam Containment Spray
ML24191A310	6 May 2024	Callaway	Final Safety Analysis Report Rev. OL-27 and Technical Specification Bases Rev. 25, Chapter 3.7, Plant Systems	Steam Generator Feedwater Service water Emergency Diesel Generator Main Steam Isolation Valve Auxiliary Feedwater Residual Heat Removal Control Room Emergency Ventilation Main Steam Safety Valve Main Steam Line Control Room Envelope Main Steam
ML24094A099	3 April 2024	Grand Gulf	(GGNS) Core Operating Limits Report (COLR) Cycle 25, Revision O	Feedwater
ML24031A540	26 March 2024	Mcguire McGuire	Issuance of Amendment Nos. 330 and 309 Regarding Implementation of TSTF 505,Rev. 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4B	Steam Generator Reactor Coolant System Feedwater Service water Emergency Diesel Generator Main Steam Isolation Valve Auxiliary Feedwater Residual Heat Removal Emergency Core Cooling System Containment Spray
ML24085A236	25 March 2024	FitzPatrick	Response to Request for Additional Information	Secondary containment Control Room Emergency Ventilation Air Supply Containment Spray
TSTF-24-02, Technical Specifications Task Force - Transmittal of TSTF-597, Revision 0, Eliminate LCO 3.0.3 Mode 2 Requirement	15 March 2024	Technical Specifications Task Force 99902042	Technical Specifications Task Force - Transmittal of TSTF-597, Revision 0, Eliminate LCO 3.0.3 Mode 2 Requirement	Reactor Coolant System Reactor Protection System Main Steam Isolation Valve Primary containment Emergency Core Cooling System Main Steam Line Control Rod
NL-24-0061, Cycle 32 Core Operating Limits Report Version 1	1 March 2024	Hatch	Cycle 32 Core Operating Limits Report Version 1	Feedwater Main Turbine Moisture Separator Reheater Control Rod Main Turbine Bypass System
ML24060A051	28 February 2024	FitzPatrick	NRR E-mail Capture - FitzPatrick - Final Arcb RAI Regarding Amendment to Update the Fuel Handling Accident Analysis	Containment Spray
05000412/LER-2023-003-01, Missile Barrier Door Left Open Resulting in a Loss of Safety Function	20 February 2024	Beaver Valley	Missile Barrier Door Left Open Resulting in a Loss of Safety Function	Residual Heat Removal
ML23326A039	24 January 2024	Arkansas Nuclear	Issuance of Amendment No. 281 Revision to Technical Specifications to Adopt TSTF-505, Revision 2, Provide Risk-Informed Extended Completion Times - RITSTF Initiative 4b	Steam Generator Reactor Coolant System Feedwater Service water Reactor Protection System Main Steam Isolation Valve Emergency Core Cooling System Emergency Feedwater Initiation and Control Decay Heat Removal Main Steam Line Control Rod Emergency Feedwater System
ML24018A022	18 January 2024	Grand Gulf	Core Operating Limits Report (COLR) Cycle 24, Revision 2	Feedwater
ML23353A171	18 January 2024	Callaway	Issuance of Amendment No. 237 to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6	Reactor Coolant System Service water Emergency Diesel Generator Auxiliary Feedwater HVAC Residual Heat Removal Control Room Emergency Ventilation Circulating Water System Decay Heat Removal Main Steam Line
05000499/LER-2023-001, Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function	15 January 2024	South Texas	Two Essential Chilled Water Trains Inoperable Resulting in a Condition That Could Have Prevented Fulfillment of a Safety Function	HVAC Control Room Envelope Containment Spray
JAFP-23-0065, License Amendment Request to Revise Technical Specifications to Adopt TSTF-529, Clarify Use and Application Rules, Revision 4, and Administrative Changes to the Technical Specifications	14 December 2023	FitzPatrick	License Amendment Request to Revise Technical Specifications to Adopt TSTF-529, Clarify Use and Application Rules, Revision 4, and Administrative Changes to the Technical Specifications	Reactor Coolant System Secondary containment High Pressure Coolant Injection Reactor Core Isolation Cooling Primary containment Reactor Pressure Vessel Residual Heat Removal Automatic Depressurization System Remote shutdown Emergency Core Cooling System Decay Heat Removal Low Pressure Coolant Injection
ML24016A270	12 December 2023	Technical Specifications Task Force	TSTF-585, Draft Revision 3, Revise LCO 3.0.3 to Require Managing Risk	Steam Generator Reactor Coolant System Feedwater Service water Main Steam Isolation Valve Auxiliary Feedwater High Pressure Core Spray Residual Heat Removal Control Room Emergency Filtration System Circulating Water System Emergency Core Cooling System Decay Heat Removal Main Steam Line
ENS 56861	16 November 2023 21:41:00	South Texas	Essential Chiller Trains Inoperable	Emergency Diesel Generator HVAC Control Room Envelope Containment Spray
ENS 56848	10 November 2023 20:13:00	South Texas	Essential Chiller Trains Inoperable	HVAC Control Room Envelope Containment Spray
L-2023-107, Technical Specification Bases Control Program Periodic Report of Bases Changes TS 6.8.4.j.4	6 September 2023	Saint Lucie	Technical Specification Bases Control Program Periodic Report of Bases Changes TS 6.8.4.j.4	Steam Generator Reactor Coolant System Feedwater Secondary containment Reactor Protection System Emergency Diesel Generator Main Steam Isolation Valve Auxiliary Feedwater Primary containment Shutdown Cooling Reactor Pressure Vessel Control Room Emergency Ventilation Shield Building Main Steam Safety Valve Remote shutdown Emergency Core Cooling System Decay Heat Removal Main Steam Line Control Room Envelope Control Rod Main Steam Containment Spray
JAFP-23-0048, Supplemental Information for License Amendment Request to Update the Technical Specification Bases to Change the Fuel Handling Accident Analysis	31 August 2023	FitzPatrick	Supplemental Information for License Amendment Request to Update the Technical Specification Bases to Change the Fuel Handling Accident Analysis	Secondary containment HVAC Reactor Pressure Vessel Standby Gas Treatment System Control Room Envelope Control Room Emergency Ventilation Air Supply
05000412/LER-2023-003, Missile Barrier Door Left Open Resulting in a Loss of Safety Function	8 August 2023	Beaver Valley	Missile Barrier Door Left Open Resulting in a Loss of Safety Function	Residual Heat Removal
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