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MONTHYEARML19112A0522019-07-25025 July 2019 Federal Register Notice: Watts Bar Nuclear Plant, Units 1 and 2 - Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 Project stage: Approval ML19112A0112019-07-25025 July 2019 Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 Project stage: Approval 2019-07-25
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Category:Exemption from NRC Requirements
MONTHYEARCNL-23-069, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-21021 December 2023 Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation ML22117A1862022-04-29029 April 2022 Exemptions from the Requirements of 10 CFR Part 26, Section 26.205(d)(7) (EPID L-2022-LLE-0017) (Exemption) ML22117A1852022-04-29029 April 2022 Exemptions from the Requirements of 10 CFR Part 26, Section 26.205(d)(7) (EPID L-2022-LLE-0017) (Letter) CNL-22-054, Request for Exemption from Requirements of 10 CFR 26.205(d)(4), 26.205(d)(6) and 26.205(d)(7), Fitness for Duty Programs - Work Hours2022-04-15015 April 2022 Request for Exemption from Requirements of 10 CFR 26.205(d)(4), 26.205(d)(6) and 26.205(d)(7), Fitness for Duty Programs - Work Hours ML20318A0362020-12-0808 December 2020 Exemption from Annual Force-on-Force Exercise Requirement of 10 CFR Part 73, Appendix B, General Criteria for Security Personnel Subsection VI C.3(l)(1) (EPID L-2020-LLE-0179 (COVID-19)) CNL-20-092, Request for an Exemption Regarding Calendar Year 2020 Force-on-Force Exercise2020-11-0404 November 2020 Request for an Exemption Regarding Calendar Year 2020 Force-on-Force Exercise CNL-20-069, Request for a One-Time Exemption from 10 CFR 73, Appendix B, Section VI, Subsection C.3.(I)(1) Regarding Annual Force-on-Force Exercises, Due to COVID-19 Pandemic2020-10-14014 October 2020 Request for a One-Time Exemption from 10 CFR 73, Appendix B, Section VI, Subsection C.3.(I)(1) Regarding Annual Force-on-Force Exercises, Due to COVID-19 Pandemic ML19112A0522019-07-25025 July 2019 Federal Register Notice: Watts Bar Nuclear Plant, Units 1 and 2 - Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 ML1000604112010-03-0808 March 2010 FRN: General Notice. Watts Bar Nuclear Plant, Units 1 and 2 - Exemption from the Requirements of 10 CFR Part 73, Section 73.55 NRC-2010-0019, FRN: General Notice. Watts Bar Nuclear Plant, Units 1 and 2 - Exemption from the Requirements of 10 CFR Part 73, Section 73.55 (TAC Nos. ME2601 and ME2602)2010-03-0808 March 2010 FRN: General Notice. Watts Bar Nuclear Plant, Units 1 and 2 - Exemption from the Requirements of 10 CFR Part 73, Section 73.55 (TAC Nos. ME2601 and ME2602) ML0531802632005-12-20020 December 2005 One-Time Exemption from NRC Requirements, EP Scheduler Exemption 2023-12-21
[Table view] Category:Federal Register Notice
MONTHYEARML23073A2762023-04-0303 April 2023 Individual Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing (EPID L-2023-LLA-0029) (Letter) ML23073A2992023-04-0303 April 2023 Individual Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing (EPID L-2023-LLA-0029) (FRN) ML22129A0712022-05-0909 May 2022 Federal Register Notice (Correction) ML22117A1862022-04-29029 April 2022 Exemptions from the Requirements of 10 CFR Part 26, Section 26.205(d)(7) (EPID L-2022-LLE-0017) (Exemption) ML21063A1372021-03-18018 March 2021 Individual Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Significant Hazards Consideration Determination, Opportunity to Request Hearing,Order Imposing Procedures for SUNSI Document Access(Frn) ML21063A1362021-03-18018 March 2021 Individual Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Significant Hazards Consideration Determination, Opportunity to Request Hearing,Order Imposing Procedures for SUNSI Document Access(Lette ML20358A2192021-01-0505 January 2021 Cover Letter with Individual Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Sig. Hazards Consideration, and Opportunity for Hearing SUNSI ML20358A2202021-01-0505 January 2021 Individual Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Sig. Hazards Consideration, and Opportunity for Hearing SUNSI ML20034D6422020-02-12012 February 2020 Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving Proposed No Significant Hazards Considerations and Containing Sensitive Unclassified Non-Safeguards Information and Order Imposing Procedures: March ML19337A0312019-12-11011 December 2019 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 12/17/2019 ML19298A4772019-10-31031 October 2019 Federal Register Notice: Watts Bar Nuclear Plant, Units 1 and 2 - License Amendment Application; Opportunity to Comment; Request a Hearing, and Petition for Leave to Intervene ML19298A6472019-10-31031 October 2019 Individual Notice of Consideration of Issuance of Amendments to Facility Operating Licenses and Opportunity for a Hearing ML19241A2962019-09-0606 September 2019 Transmittal of Individual Federal Register Renotice for License Amendment Request TSTF-50 ML19241A2952019-09-0606 September 2019 Individual Federal Register Renotice for License Amendment Request TSTF-500 ML19112A0522019-07-25025 July 2019 Federal Register Notice: Watts Bar Nuclear Plant, Units 1 and 2 - Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 ML19112A0112019-07-25025 July 2019 Exemption from the Requirements of 10 CFR Section 50.46 and Appendix K to 10 CFR Part 50 ML19168A0842019-06-26026 June 2019 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 07/02/2019 ML19085A2172019-03-29029 March 2019 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 04/09/2019 ML19042A3062019-02-15015 February 2019 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 2/26/2019 ML18332A0132019-02-0606 February 2019 Federal Register Notice ML18332A0142019-02-0606 February 2019 Environmental Assessment and Finding of No Significant Impact Related to Application to Revise Watts Bar Unit 2 Technical Specification 4.2.1, Fuel Assemblies, NRC-2019-0046, Federal Register Notice2019-02-0606 February 2019 Federal Register Notice ML18306A4682018-11-0808 November 2018 Individual Notice of Consideration of Issuance of Amendments to Facility Operating License, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing ML18306A4802018-11-0808 November 2018 Individual Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Significant Hazards Consideration Determination, and Opportunity for a Hearing ML18295A7442018-10-25025 October 2018 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 11/06/18 NRC-2014-0045, FRN; Tennessee Valley Authority, Browns Ferry Nuclear Plant Units 1, 2 and 3, Sequoyah Nuclear Plant, Units 1 and 2, Watts Bar Nuclear Plant, Units 1 and 22018-08-21021 August 2018 FRN; Tennessee Valley Authority, Browns Ferry Nuclear Plant Units 1, 2 and 3, Sequoyah Nuclear Plant, Units 1 and 2, Watts Bar Nuclear Plant, Units 1 and 2 ML18200A1922018-08-21021 August 2018 Withdrawal of Amd Request to Change Implementation Date for Emergency Action Level Scheme ML18200A2142018-08-21021 August 2018 FRN; Tennessee Valley Authority, Browns Ferry Nuclear Plant Units 1, 2 and 3, Sequoyah Nuclear Plant, Units 1 and 2, Watts Bar Nuclear Plant, Units 1 and 2 ML18173A1792018-08-0707 August 2018 OEDO-17-00070 - Notice of Issuance of Director'S Decision, 2.206 Petition for Emergency Enforcement Action Per 10 CFR 2.206 at Listed U.S. Reactors with Forged Components and Parts Manufactured at France'S AREVA-Le Creusot Forge and Japan C ML18189A0032018-07-11011 July 2018 FRN: Watts Bar Nuclear Plant, Unit 1, Individual Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Significant Hazards Consideration Determination, and Opportunity for Hearing NRC-2018-0140, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 7/17/20182018-07-0505 July 2018 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 7/17/2018 ML18180A2182018-07-0505 July 2018 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: 7/17/2018 ML18172A3042018-06-22022 June 2018 Tennessee Valley Authority - License Amendment Application; Opportunity to Comment, Request a Hearing, and Petition for Leave to Intervene ML18173A0532018-06-22022 June 2018 Ind. Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Sig. Hazards ... ML18128A3062018-06-0404 June 2018 Federal Register Notice on Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Application; Opportunity to Request a Hearing and to Petition for Leave to Intervene; Order Imposing Procedures (Docket Nos. 50-390 and 50-391; NRC-2018-01 ML18128A2932018-05-30030 May 2018 Letter, Individual Notice of Consideration of Issuance of Amendment to Facility Operating License and Opportunity for Hearing ML18039A8922018-02-14014 February 2018 Individual Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Sig. Hazards Consideration Determination, and Opportunity for Hearing (CAC Nos. MF8912-13; EPID L-2016-0034) L-2016-003, Individual Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Sig. Hazards Consideration Determination, and Opportunity for Hearing (CAC Nos. MF8912-13; EPID L-2016-0034)2018-02-14014 February 2018 Individual Notice of Consideration of Issuance of Amendments to Facility Operating Licenses, Proposed No Sig. Hazards Consideration Determination, and Opportunity for Hearing (CAC Nos. MF8912-13; EPID L-2016-0034) ML17353A1922017-12-21021 December 2017 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: January 2, 2018 NRC-2017-0238, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: January 2, 20182017-12-21021 December 2017 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: January 2, 2018 ML17200A0652017-08-30030 August 2017 OEDO-17-00070 - Acknowledgement FRN, Paul Gunter, Beyond Nuclear, 2.206 Petition for Emergency Enforcement Action Per 10 CFR 2.206 at Listed U.S. Reactors with Forged Components and Parts Manufactured at France'S AREVA-Le Creusot Forge and ML17198A3292017-08-30030 August 2017 OEDO-17-00070 - Acknowledgement Letter, Paul Gunter, Beyond Nuclear, Petition for Emergency Enforcement Action Per 10 CFR 2.206 at Listed U.S. Reactors with Forged Components and Parts Manufactured at France'S AREVA-Le Creusot Forge and Jap ML16336A2212016-12-29029 December 2016 FRN: Watts Bar Nuclear Plant Unit 2 - Notice of Opportunity to Comment, Request a Hearing, and Petition for Leave to Intervene; SUNSI Order ML16336A2152016-12-20020 December 2016 Individual Notice of Consideration of Issuance of Amendment to Facility Operating License, Proposed No Significant Hazards Consideration Determination, and Opportunity for Hearing NRC-2016-0202, Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: September 27, 20162016-09-19019 September 2016 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: September 27, 2016 ML16257A5172016-09-19019 September 2016 Biweekly FRN - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: September 27, 2016 NRC-2016-0161, Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: August 16, 20162016-08-0303 August 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: August 16, 2016 ML16215A2272016-08-0303 August 2016 Biweekly Federal Register Notice - Applications and Amendments to Facility Operating Licenses and Combined Licenses Involving No Significant Hazards Considerations - Publication Date: August 16, 2016 ML16214A1342016-07-29029 July 2016 Individual Notice of Issuance of Amendment to Facility Operating License ML16159A0712016-07-29029 July 2016 Cover Letter for Individual Notice 2023-04-03
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[7590-01-P]
NUCLEAR REGULATORY COMMISSION
[Docket Nos. 50-390 and 50-391; NRC-2019-0138]
Tennessee Valley Authority; Watts Bar Nuclear Plant, Units 1 and 2 AGENCY: Nuclear Regulatory Commission.
ACTION: Exemption; issuance.
SUMMARY
- The U.S. Nuclear Regulatory Commission (NRC or the Commission) has issued an exemption in response to a July 23, 2018, request from Tennessee Valley Authority (TVA or the licensee) to implement Optimized ZIRLOTM fuel rod cladding at the Watts Bar Nuclear Plant (Watts Bar), Units 1 and 2.
DATES: The exemption was issued on July 25, 2019.
ADDRESSES: Please refer to Docket ID NRC-2019-0138 when contacting the NRC about the availability of information regarding this document. You may obtain publicly-available information related to this document using any of the following methods:
- Federal Rulemaking Web Site: Go to https://www.regulations.gov/ and search for Docket ID NRC-2019-0138. Address questions about NRC docket IDs to Jennifer Borges; telephone: 301-287-9127; e-mail: Jennifer.Borges@nrc.gov. For technical questions, contact the individual listed in the FOR FURTHER INFORMATION CONTACT section of this document.
Search. For problems with ADAMS, please contact the NRCs Public Document Room (PDR) reference staff at 1-800-397-4209, 301-415-4737, or by e-mail to pdr.resource@nrc.gov. The ADAMS accession number for each document referenced (if it is available in ADAMS) is provided the first time that it is mentioned in this document. In addition, for the convenience of the reader, the ADAMS accession numbers are provided in a table in the Availability of Documents section of this document.
- NRCs PDR: You may examine and purchase copies of public documents at the NRCs PDR, Room O1-F21, One White Flint North, 11555 Rockville Pike, Rockville, Maryland 20852.
FOR FURTHER INFORMATION CONTACT: Robert Schaaf, Office of Nuclear Reactor Regulation, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001; telephone: 301-415-6020, e-mail: Robert.Schaaf@nrc.gov.
SUPPLEMENTARY INFORMATION:
I. Background TVA is the holder of Facility Operating License Nos. NPF-90 and NPF-96, which authorize operation of Watts Bar, Units 1 and 2, respectively. The licenses provide, among other things, that the facilities are subject to all rules, regulations, and orders of the NRC now or hereafter in effect. The facilities consist of pressurized-water reactors located in Spring City, Tennessee.
II. Request/Action By application dated July 23, 2018 (ADAMS Accession No. ML18205A492), TVA, pursuant to section 50.12 of title 10 of the Code of Federal Regulations (10 CFR),
Specific exemptions, requested an exemption from certain requirements of 10 CFR 50.46, Acceptance criteria for emergency core cooling systems [ECCS] for 2
light-water nuclear power reactors, and appendix K, ECCS Evaluation Models, to 10 CFR part 50 to allow the use of fuel rod cladding with Optimized ZIRLO' alloy for future reload applications. The regulations in 10 CFR 50.46 contain acceptance criteria for the ECCS for reactors fueled with zircaloy or ZIRLO' fuel rod cladding material. In addition, 10 CFR part 50, appendix K, requires that the Baker-Just equation be used to predict the rates of energy release, hydrogen concentration, and cladding oxidation from the metal/water reaction. The Baker-Just equation assumes the use of a zirconium alloy, which is a material different from Optimized ZIRLO'. The licensee requested the exemption because these regulations do not have provisions for the use of fuel rod cladding material other than zircaloy or ZIRLO'. Because the material specifications of Optimized ZIRLO' differ from the specifications for zircaloy or ZIRLO', a plant-specific exemption is required to support the reload applications for Watts Bar, Units 1 and 2.
This exemption request relates solely to the specific type of cladding material specified in these regulations for use in light-water reactors. As written, the regulations presume use of either Zircaloy or ZIRLOTM1 fuel rod cladding. The exemption is required because Optimized ZIRLOTM has a slightly different composition than Zircaloy or ZIRLOTM. Therefore, TVA has requested an exemption to consider Optimized ZIRLOTM as an approved fuel rod cladding material. TVA is not seeking an exemption from the acceptance and analytical criteria of 10 CFR 50.46 and appendix K to 10 CFR part 50.
The requirements regarding the acceptance and analytical criteria will be maintained.
Along with the exemption request, the submittal from TVA described above also contains a license amendment request to modify Technical Specifications 4.2.1, Fuel Assemblies, and 5.9.5, Core Operating Limits Report (COLR), to allow the use of 1
Optimized ZIRLO and ZIRLO are trademarks or registered trademarks of Westinghouse Electric Company, LLC.
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Optimized ZIRLO' as an approved fuel rod cladding material. This exemption and the proposed Technical Specification changes are subject to a concurrent review that is being documented in the safety evaluation with the license amendments (ADAMS Accession No. ML19112A004).
The NRC has previously approved exemption requests that were similar in nature to that requested by TVA. Precedent exemptions have been approved for other pressurized-water reactor plants, including Beaver Valley Power Station, Units 1 and 2 (ADAMS Accession Nos. ML18022B116 and ML17313A550); Palo Verde Nuclear Generating Station, Units 1, 2, and 3 (ADAMS Accession Nos. ML17319A107 and ML17319A214); and Wolf Creek Generating Station, Unit 1 (ADAMS Accession Nos. ML16179A293 and ML16179A440).
III. Discussion Pursuant to 10 CFR 50.12, the Commission may, upon application by any interested person or upon its own initiative, grant exemptions from the requirements of 10 CFR part 50 when: (1) the exemptions are authorized by law, will not present an undue risk to public health or safety, and are consistent with the common defense and security; and (2) when special circumstances are present. Under 10 CFR 50.12(a)(2),
special circumstances include, among other things, when application of the specific regulation in the particular circumstance would not serve, or is not necessary to achieve, the underlying purpose of the rule. The requested exemption to apply the acceptance criteria to Optimized ZIRLOTM fuel rod cladding rather than Zircaloy or ZIRLOTM at Watts Bar, Units 1 and 2, satisfies the criteria as described below.
A. Special Circumstances The special circumstance that necessitates the request for exemption to 10 CFR 50.46 and appendix K to 10 CFR part 50 is that neither of these regulations 4
explicitly allows the use of Optimized ZIRLOTM fuel rod cladding material. The ultimate objective of 10 CFR 50.46 is to ensure that nuclear power reactors fueled with uranium oxide pellets within Zircaloy or ZIRLOTM cladding must be provided with ECCS that must be designed to provide core cooling following postulated loss-of-coolant accidents. It has been demonstrated in the NRC-approved Westinghouse Topical Report WCAP-14342-A & CENPD-404-NP-A, Addendum 1-A (ADAMS Accession No. ML062080569) that the effectiveness of the ECCS will not be affected by a change from Zircaloy or ZIRLOTM clad fuel to Optimized ZIRLOTM clad fuel. Normal reload safety analyses will confirm that there is no adverse impact on ECCS performance.
The objective of 10 CFR 50.46(b)(2) and (b)(3) and paragraph I.A.5 of appendix K to 10 CFR part 50 is to ensure that cladding oxidation and hydrogen generation are appropriately limited during a loss-of-coolant accident and conservatively accounted for in the ECCS evaluation model. Appendix K of 10 CFR 50 requires that the Baker-Just equation be used in the ECCS evaluation model to determine the rate of energy release, cladding oxidation, and hydrogen generation. Westinghouse has shown in Addendum 1-A to WCAP-12610-P-A that the Baker-Just model is conservative in all post-loss-of-coolant accident scenarios with respect to the use of the Optimized ZIRLOTM advanced alloy as a fuel cladding material.
B. The Exemption is Authorized by Law The NRC has the authority under 10 CFR 50.12 to grant exemptions from the requirements of 10 CFR part 50 upon showing proper justification. The fuel that will be irradiated at Watts Bar, Units 1 and 2, contains cladding material that does not conform to the cladding material that is explicitly defined in 10 CFR 50.46 and implicitly defined in appendix K to 10 CFR part 50. However, the criteria of these sections will continue to be 5
satisfied for the operation of the Watts Bar, Units 1 and 2, core containing Optimized ZIRLOTM fuel cladding.
C. The Exemption Presents No Undue Risk to Public Health and Safety The standards for exemption are also satisfied since the exemption will not present an undue risk to public health and safety. The NRC-approved Westinghouse topical report discussed above has demonstrated that predicted chemical, thermal, and mechanical characteristics of the Optimized ZIRLOTM alloy cladding are bounded by those approved for ZIRLOTM under anticipated operational occurrences and postulated accidents. Reload cores are required to be operated in accordance with the operating limits specified in the Technical Specifications and COLR. Thus, the granting of this exemption request will not pose an undue risk to public health and safety.
D. The Exemption is Consistent with the Common Defense and Security The exemption request is to allow the licensee to use an improved fuel rod cladding material. The licensee has documented compliance with the conditions and limitations of the NRC safety evaluation regarding the use of Optimized ZIRLOTM fuel rod cladding at Beaver Valley Power Station, Units 1 and 2, and has committed to ensuring compliance for future reloads in the current application for Watts Bar, Units 1 and 2. Use of Optimized ZIRLOTM fuel rod cladding in the Watts Bar, Units 1 and 2, cores will not affect plant operations and is consistent with common defense and security.
E. Environmental Considerations A review has determined that the proposed amendments would change a requirement with respect to installation or use of a facility component located within the restricted area, as defined in 10 CFR part 20, or would change an inspection or surveillance requirement. However, the proposed amendments do not involve (i) a significant hazards consideration, (ii) a significant change in the types or significant 6
increase in the amounts of any effluents that may be released offsite, or (iii) a significant increase in individual or cumulative occupational radiation exposure. Accordingly, the proposed amendments meet the eligibility criterion for categorical exclusion set forth in 10 CFR 51.22(c)(9). Therefore, pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the proposed amendments.
IV. Conclusion Accordingly, the Commission has determined that, pursuant to 10 CFR 50.12, the exemption is authorized by law, will not present an undue risk to the public health and safety, and is consistent with the common defense and security. Therefore, the Commission hereby grants TVA an exemption from the requirements of 10 CFR 50.46 and appendix K to 10 CFR part 50 to allow the use of Optimized ZIRLO' fuel rod cladding material at Watts Bar, Units 1 and 2. As stated in this notice, this exemption relates solely to the cladding material specified in these regulations.
Dated at Rockville, Maryland, this 25th day of July, 2019.
For the Nuclear Regulatory Commission.
/RA/
Blake D. Welling, Deputy Director, Division of Operating Reactor Licensing, Office of Nuclear Reactor Regulation.
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