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 Issue dateTitleTopic
ML24024A20724 January 2024Inservice Inspection Request for Information
IR 05000275/202401510 October 2023Information Request for the Cybersecurity Baseline Inspection, Notification to Perform Inspection (050002752024015 and 050003232024015)Cyber Security
ML23249A2786 September 2023Inservice Inspection Request for InformationBoric Acid
Nondestructive Examination
License Renewal
Scaffolding
ML23159A23825 July 2023Request for Additional Information for the Technical Review of the Application for Renewal of the Diablo Canyon Independent Spent Fuel Storage Installation (Cac/Epid Nos. 001028/L-2022-RNW-0007)
ML23159A23725 July 2023ISFSI Renewal RAI Transmittal Letter EnclosureAging Management
License Renewal
ML23096A1796 April 2023NRR E-mail Capture - Request for Additional Information Diablo Canyon Exemption Request Regarding Senior Reactor Operator License ApplicationJob Performance Measure
Generic Fundamentals Examination
Exemption Request
ML23047A00621 February 2023Request for Additional Information Alternative Security Measures for Early Warning System (EPID: L-2022-LLA-0029) (Public Version)
ML23041A18617 February 2023Request for Information Regarding Diablo Canyon Power Plant, Units 1 and 2 - December 8, 2022, Public MeetingAging Management
ML22258A11114 September 20222022 Diablo Canyon PIR Request for InformationTemporary Modification
Pandemic
ML22200A25719 July 2022Notification of In-service Inspection (Inspection Report 05000323/2022004) and Request for InformationBoric Acid
Nondestructive Examination
Scaffolding
ML22187A2656 July 2022NRR E-mail Capture - Request for Additional Information: Diablo Canyon Exemption Request for Part 73 force-on-force Training Due to COVID-19Exemption Request
Pandemic
Coronavirus
ML22152A15021 June 2022Request for Additional Information Regarding License Amendment Request for Technical Specifications and Revised License Conditions for the Permanently Defueled Condition
ML22122A1415 May 2022.02 Doc Request
ML22068A23117 March 2022Notification of NRC Design Bases Assurance Inspection (Team) 05000275/2022011 and 05000323/2022011 and Initial Request for InformationCommercial Grade Dedication
Probabilistic Risk Assessment
Temporary Modification
Job Performance Measure
Surveillance Frequency Control Program
Large early release frequency
ML22061A2192 March 2022NRR E-mail Capture - Request for Additional Information - Diablo Canyon Proposed Changes to Emergency Plan for post-shutdown and Permanently Defueled Condition
ML21363A16929 December 2021Inservice Inspection Request for InformationBoric Acid
Nondestructive Examination
Scaffolding
ML22019A04129 December 2021RFIBoric Acid
Nondestructive Examination
Scaffolding
ML21215A3433 August 2021NRR E-mail Capture - Request for Additional Information - Diablo Canyon Request to Revise Technical Specification 3.8.1, AC Sources - Operating to Support Diesel Fuel Oil Transfer System Component Planned MaintenanceFLEX
Job Performance Measure
ML21130A36421 June 2021DC 2021401 Information RequestFitness for Duty
ML21104A36414 April 2021NRR E-mail Capture - Request for Additional Information - Diablo Canyon Proposed Technical Specifications and Revised License Conditions for the Permanently Defueled Condition
ML21062A0642 March 2021NRR E-mail Capture - Request for Additional Information for Diablo Canyon Generic Letter 2004-02 Submittal (L-2017-LRC-0000)
ML20329A06923 November 2020NRR E-mail Capture - Request for Additional Information: Diablo Canyon COVID-19 Exemption Request to Extend force-on-force ExerciseExemption Request
Pandemic
Coronavirus
ML20323A45318 November 2020NRR E-mail Capture - Request for Additional Information: Diablo Canyon COVID-19 Exemption Request to Extend Firearms RequalificationExemption Request
Coronavirus
ML20301A22127 October 2020Notification of an NRC Fire Protection Baseline Inspection (NRC Inspection Report 05000275/2021010 and 05000323/2021010) and Request for InformationSafe Shutdown
Commercial Grade Dedication
Hydrostatic
Probabilistic Risk Assessment
Temporary Modification
Emergency Lighting
Aging Management
Job Performance Measure
Fire Protection Program
ML20261H42317 September 2020NRR E-mail Capture - Request for Additional Information: Diablo Canyon Unit 2 Fall 2019 Steam Generator Tube Inspection Report
ML20231A23717 August 2020NRR E-mail Capture - Diablo Canyon Additional Request for Additional Information: Exigent License Amendment Request for Application to Provide a New Technical Specification 3.7.5, Auxiliary Feedwater System, Condition G EPID: L-2020-LLA-017
ML20230A07314 August 2020NRR E-mail Capture - Diablo Canyon Request for Additional Information: Exigent License Amendment Request for Application to Provide a New Technical Specification 3.7.5, Auxiliary Feedwater System, Condition GProbabilistic Risk Assessment
Coatings
Through-Wall Leak
ML20280A5433 June 2020DC 2020 PIR Request for InformationTemporary Modification
ML20041E60110 February 2020NRR E-mail Capture - Diablo Canyon Nuclear Power Plant, Units 1 and 2 - Request for Additional Information for Post -Shutdown Decommissioning Activities Report (PSDAR)
ML19262G7489 August 2019Request for InformationBoric Acid
Nondestructive Examination
Scaffolding
ML19149A60128 May 2019NRR E-mail Capture - Request for Additional Information (Supplemental) - License Amendment Request (LAR) to Revise Emergency Plan Response Organization Staffing and AugmentationMinimum staff
ML19123A2162 May 2019NRR E-mail Capture - Diablo Canyon Nuclear Power Plant -Request for Exemption from Operator Written Examination and Operating Test - Request for Additional Information
ML19084A25721 March 2019NRR E-mail Capture - Request for Additional Information - License Amendment Request (LAR) to Revise Emergency Plan Response Organization Staffing and Augmentation
ML19043A94520 February 2019Notification of Inspection (NRC Inspection Report 05000275/2019002, 05000323/2019002 and Request for InformationTime Critical Operator Action
ML17306A9382 November 2017NRR E-mail Capture - Request for Additional Information - Request for Approval for Application of Full Weld Overlay REP-RHR-SWOL, Diablo Canyon Power Plant, Units 1 and 2Weld Overlay
Stress corrosion cracking
Thermal fatigue
ML17152A3191 June 2017NRR E-mail Capture - Request for Additional Information (RAI)- Relief Requests NDE-SLH U2, NDE-LSL U2, NDE-LHC U2, NDE-LHM U2, and NDE-ONV U2 (CAC Nos. MF9386 Through MF9390)
ML17102B60712 April 2017NRR E-mail Capture - Request for Additional Information (RAI) - Revised Emergency Action Level Schemes Pursuant to Nuclear Energy Institute (NEI) 99-01, Revision 6Safe Shutdown
Ultimate heat sink
Operator Manual Action
Earthquake
Fuel cladding
ML16347A0039 December 2016NRR E-mail Capture - Request for Additional Information (RAI) - Diablo Canyon Power Plant License Amendment Request for Adoption of NEI 94-01Probabilistic Risk Assessment
Very Early Warning Fire Detection
ML16326A35621 November 2016NRR E-mail Capture - Request for Additional Information - License Amendment Request to Adopt Nuclear Energy Institute (NEI) 94-01, Revision 2-A for Diablo Canyon Power Plant, Units 1 and 2 - CAC Nos. MF7731 and MF7732
ML16048A23217 February 2016NRR E-mail Capture - Diablo Canyon 1 and 2 - Met Data Second Round of Requests for Additional Information for License Amendment Request 15-03 to Adopt the Alternative Source Term Per 10 CFR 50.67 (TAC Nos. MF6399 and MF640Met Tower
ML16011A3652 February 2016Requests for Additional Information for the Review of the Diablo Canyon Power Plant, Units 1 and 2, License Renewal Application - Set 39 (TAC Nos. ME2896 and ME2897)Safe Shutdown
Coatings
Aging Management
ML16011A31711 January 2016NRR E-mail Capture - Diablo Canyon 1 and 2 - Requests for Additional Information for License Amendment Request 15-03 to Adopt the Alternative Source Term Per 10 CFR 50.67Surveillance Frequency Control Program
ML15358A00223 December 2015Request for Additional Information Email (Follow-up Pra), Request to Adopt National Fire Protection Association NFPA 805, Performance-Based Standard for Fire Protection for LWR Generating Plants (2001 Edition)Probabilistic Risk Assessment
Large early release frequency
ML15357A38223 December 2015Request for Additional Information, Round 4 - Amendment Request to Replace Digital Process Protection System for Reactor Protection System and Engineered Safety Features Actuation System FunctionsOperator Manual Action
ML15295A3735 November 2015Requests for Additional Information Related to the Diablo Canyon LRA Environmental ReviewLicense Renewal
ML15287A16523 October 2015Requests for Additional Information Related to the Diablo Canyon LRA Environmental Review - SAMAFire Barrier
Internal Flooding
Probabilistic Risk Assessment
FLEX
Large early release frequency
B.5.b Mitigating Strategies
ML15267A7741 October 2015Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1 Seismic EvaluationsFukushima Dai-Ichi
ML15217A48124 September 2015Requests for Additional Information for the Review of the Diablo Canyon Power Plant, Units 1 and 2, License Renewal Application Set-38 TAC Nos. ME2896 and ME2897Hydrostatic
Coatings
Aging Management
ML15238B77427 August 2015Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1, Seismic ReevaluationsFukushima Dai-Ichi
ML15153A03329 June 2015Request for Additional Information Associated with Near-Term Task Force Recommendation 2.1, Seismic ReevaluationsFukushima Dai-Ichi
Earthquake