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| Issue date | Title | Topic | |
|---|---|---|---|
| ML20225A292 | 12 August 2020 | Request to Use a Portion of a Later Edition of the ASME B&PV Code, Section XI | Incorporated by reference |
| ML19079A148 | 1 April 2019 | Request for Alternative I4R-05 to Reactor Vessel Nozzle Weld Examination Frequency Requirements (EPID L-2018-LLR-0051 | Finite Element Analysis Dissimilar Metal Weld |
| ML18313A069 | 26 November 2018 | Request for Relief I4R-01 Related to the Inservice Inspection Program for Class 3 Buried High Density Polyethylene Piping | Hydrostatic Through-Wall Leak |
| ULNRC-06420, Request 14R-05 for Relief from Requirements of ASME Code Case N-770-2 Regarding Inspection Intervals for Reactor Vessel Nozzle Dissimilar Metal Welds | 9 April 2018 | Request 14R-05 for Relief from Requirements of ASME Code Case N-770-2 Regarding Inspection Intervals for Reactor Vessel Nozzle Dissimilar Metal Welds | Incorporated by reference Dissimilar Metal Weld DM weld |
| ML17262A700 | 3 October 2017 | Request for Alternative I4R-04 Applicable to the Fourth 10-Year Inspection Program Interval | Incorporated by reference Dissimilar Metal Weld |
| ML17254A120 | 25 September 2017 | Request for Alternative No. PR-07 from the Requirements of the ASME Code for the Fourth 10-Year Inservice Testing Interval | Boric Acid |
| ML17058A443 | 6 March 2017 | Request for Alternative I4R-03 Applicable to the Fourth 10-Year Inservice Inspection Program Interval | Hydrostatic VT-2 Incorporated by reference Foreign Material Exclusion Through Wall Leak |
| ML16223A712 | 30 August 2016 | Relief Request No. 13R-08 from Code Case N-460, Alternative Examination Coverage for Class 1 and Class 2 Welds, for Piping Welds, Third 10-Year Inservice Inspection Interval | Incorporated by reference |
| ML16055A464 | 17 March 2016 | Relief Requests 13R-09 (Steam Generator Tubesheet Weld), 13R-11 (Pressurizer Welds) from Code Case N-460 and 13R-18 (SG Weld), from Appendix Viii Requirements, Third 10-Year Inservice Inspection Interval (CAC MF6735-MF6737) | VT-2 Incorporated by reference |
| ML16027A158 | 29 January 2016 | Relief Request I4R-02 from Requirements of ASME Code Section XI, Table IWF-2500-1 for 100% Visual Examination of Class 1 Supports, Fourth 10-Year Inservice Inspection Interval | Incorporated by reference |
| ML15064A125 | 12 May 2015 | Request for Relief I4R-01 from ASME Code Requirements for Replacement of Class 3 Essential Service Water Buried Piping with High Density Polyethylene Piping, for the Fourth 10-year Inservice Testing Interval | Hydrostatic |
| ML15035A148 | 10 February 2015 | Relief Request 13R-17, Proposed Alternative to ASME Code, Section XI Requirements, Which Extends Reactor Vessel Inservice Inspection Frequency from 10 to 20 Years, Third 10-Year Interval | Probabilistic Risk Assessment Incorporated by reference |
| ML14239A097 | 4 September 2014 | Request for Relief I3R-15, ASME Code Class 1 Pressure-Retaining Piping/Components Leakage Testing at Full Pressure, Third 10-Year Inservice Inspection Interval | Boric Acid Hydrostatic VT-2 Incorporated by reference |
| ML14234A451 | 4 September 2014 | Relief Request I3R-16, Temporary Non-Code Repair of the Train a Component Cooling Water Heat Exchanger to Control ESW Leakage, Third 10-Year Inservice Inspection Interval | Ultimate heat sink Mission time |
| ML14178A769 | 15 July 2014 | Requests for Relief PR-01, PR-02, PR-03, PR-04, and PR-06 (PR-05 Withdrawn), ASME OM Code Cases for Group a and B Pumps for Fourth 10-Year Inservice Testing Interval | Boric Acid Grace period |
| ML14027A057 | 29 January 2014 | Relief Request PR-07, Testing Frequency for Pumps and Valves, Third 10-year Inservice Testing Interval | Grace period |
| ML13246A304 | 30 August 2013 | Verbal Authorization Email, Relief Request PR-07, Testing Frequency for Pumps and Valves, Third 10-year Inservice Testing Interval | |
| ML13126A320 | 7 May 2013 | Summary of Telephone Conference, Verbal Authorization of Relief Request I3R-14. Proposed Alternative to ASME Code Requirements for Leakage Testing of RPV Head Flange Leakoff Lines, Third 10-Year ISI Interval. | Boric Acid VT-2 |
| ML12258A045 | 18 September 2012 | Relief Request VR-01 from Requirements of ASME OM Code, Mandatory Appendix I, One-time Extension for 5-Year Replacement Interval, from 4/11/12 to 6/2013, Main Steam Isolation Valve Actuator Rupture Disks | |
| ML121150247 | 3 May 2012 | Memo to File, Verbal Authorization, Relief Request VR-01 from Requirements of ASME OM Code Mandatory Appendix I, One-time Extension Replacement of Main Steam Isolation Valve Actuator Rupture Disks | |
| ML120190748 | 16 February 2012 | Relief Request 13R-13, Alternative to ASME Code Section XI Requirements for Performance of Second Successive Exam of C Cold Leg Safe-End to Elbow Weld, Third 10-Year Inservice Inspection | Nondestructive Examination Incorporated by reference |
| ML083100288 | 7 November 2008 | Relief Request 13R-10 Approved on October 31, 2008, for Third 10-Year Inservice Inspection Interval for Use of Polyethylene Pipe in Lieu of Carbon Steel Pipe in Buried Essential Service Water Piping System | Hydrostatic Coatings VT-2 Incorporated by reference |
| ML081840606 | 3 July 2008 | Approval of Second Extension Request for Corrective Actions GL 2004-02, Potential Impact of Debris Blockage on Emergency Recirculation During Design Basis Accidents at Pressurized Water Reactors. | |
| ML073111442 | 10 December 2007 | Correction to Authorization of Relief Request ISI-39 for the Second 10-Year Inservice Inspection Interval | VT-2 |
| ML072980397 | 30 October 2007 | Relief Request ISI-38, Reactor Pressure Vessel Inlet Safe-End to-Elbow Welds Proposed Alternative Examination for Second 10-Year Inservice Inspection Interval | VT-2 Incorporated by reference Dissimilar Metal Weld |
| ML072400092 | 17 September 2007 | Issuance of Relief Requests (Rrs) ISI-36, ISI-37, and ISI-38 for Second Year Inservice Inspection (ISI) Interval | VT-2 Incorporated by reference |
| ML072550488 | 30 August 2007 | 10 CFR 50.55a Request: Proposed Alternative to ASME Section Xi Requirements for Replacement of Class 3 Buried Piping | Coatings |
| ML071520329 | 10 July 2007 | Request for Alternatives for Application of Structural Weld Overlays to Pressurizer Dissimilar Metal Nozzle Welds for Third 10-Year Inservice Inspection Program Interval | Weld Overlay Hydrostatic Nondestructive Examination Incorporated by reference Liquid penetrant Dissimilar Metal Weld |
| ML070580333 | 15 March 2007 | Authorization of Relief Request No. ISI-33 for Second 10-Year and Third 10-Year ISI Interval | Incorporated by reference |
| ML063520318 | 18 January 2007 | Request for Relief No. ISI-35 for Second 10-year Inservice Inspection Interval | VT-2 Incorporated by reference |
| ML070030336 | 18 January 2007 | Relief Request ISI-41 for the Second 10-year Inservice Inspection Interval | VT-2 Incorporated by reference |
| ML063060478 | 7 December 2006 | Relief Request 13R-04 for the Third 10-Year Interval Inservice Inspection | Incorporated by reference |
| ML062930282 | 17 November 2006 | Relief Requests I3R-05 and I3R-06 for the Third Inservice Inspection Interval | Incorporated by reference |
| ULNRC-05183, Requests for Relief from ASME Section XI Code Inservice Examination Requirements | 25 October 2006 | Requests for Relief from ASME Section XI Code Inservice Examination Requirements | VT-2 DM weld |
| ML061430131 | 15 June 2006 | Relief, Third 10-Year Interval Inservice Inspection Program Relief Request I3R-02 | Incorporated by reference |
| ML052080215 | 18 August 2005 | Relief, Use a Subsequent Edition of ASME Code Examinations for the Third Inservice Inspection Interval | Incorporated by reference |
| ML051530207 | 22 June 2005 | 6/22/05 Callaway, Unit 1 - Relief Requests ISI-24,ISI-25 and ISI-26 of the Second 10-Year Inservice Inspection (ISI) Interval (Tacs. MC4435 and MC4436) | Nondestructive Examination Incorporated by reference |
| ML050760129 | 19 May 2005 | Relief, Request for Relief from Certain ASME Code Examinations for the Second Inservice Inspection Interval | Non-Destructive Examination Incorporated by reference |
| ULNRC-05092, Revision to Approve Request for Relief from ASME Section III Requirements Regarding Non-destructive Examination of Welds Performed Under Site Repair/Replacement Program | 18 November 2004 | Revision to Approve Request for Relief from ASME Section III Requirements Regarding Non-destructive Examination of Welds Performed Under Site Repair/Replacement Program | Weld Overlay Nondestructive Examination |
| ULNRC-05049, Union Electric Company Callaway Plant Request for Relief from ASME Section XI Code Inservice Examination Requirements | 3 September 2004 | Union Electric Company Callaway Plant Request for Relief from ASME Section XI Code Inservice Examination Requirements | |
| ML041410071 | 19 May 2004 | Relief, ASME Code Requirements on the Use of Weld Overlay Reinforcement to Restore Wall Thickness of ASME Class 2 Carbon Steel Main Feedwater Piping. | Weld Overlay Nondestructive Examination Liquid penetrant |
| ML041410035 | 19 May 2004 | Relief, Second Ten-Year Interval Inservice Inspection Program Relief Request to Use an Alternative Examination Method | Incorporated by reference |
| ULNRC-04993, Revision of Request for Relief from ASME Section XI Requirements in Order to Temporarily Restore Wall Thickness of ASME Class 2 Carbon Steel Main Feedwater Piping by Weld Overlay Reinforcement | 7 May 2004 | Revision of Request for Relief from ASME Section XI Requirements in Order to Temporarily Restore Wall Thickness of ASME Class 2 Carbon Steel Main Feedwater Piping by Weld Overlay Reinforcement | Weld Overlay Nondestructive Examination Liquid penetrant |
| ML040980664 | 7 April 2004 | 4/7/04 Callaway Plant - Request for Relief from ASME Code Requirements on the Use of Weld Overlay Reinforcement to Restore Wall Thickness of ASME Class 2 Carbon Steel Main Feedwater Piping | Weld Overlay Nondestructive Examination Liquid penetrant |
| ULNRC-04879, Requests for Relief Regarding Implementation of ASME Section XI Appendix VII Requirements | 14 August 2003 | Requests for Relief Regarding Implementation of ASME Section XI Appendix VII Requirements | Dissimilar Metal Weld DM weld |
| ML031830535 | 1 July 2003 | Second Ten-Year Interval Inservice Inspection Program Relief Request to Use an Alternative Examination Method (Tac. MB6534) | |
| ML013460265 | 30 January 2002 | Relief, Application of Risk-Informed Inservice Inspection Program for the American Society of Mechanical Engineers Boilers and Pressure Vessel Code Class 1 and 2 TAC No MB1205) | Probabilistic Risk Assessment Incorporated by reference Large early release frequency Dissimilar Metal Weld |