Voglio sapere a riguardo di…

44264

Federal Register / Vol. 86, No. 153 / Thursday, August 12, 2021 / Rules and Regulations
lotter on DSK11XQN23PROD with RULES1

for additional site-specific approvals by the Commission. Section 133 of the Nuclear Waste Policy Act states, in part, that the Commission shall, by rule, establish procedures for the licensing of any technology approved by the Commission under Section 219a sic:
218a for use at the site of any civilian nuclear power reactor.
To implement this mandate, the Commission approved dry storage of spent nuclear fuel in NRC-approved casks under a general license by publishing a final rule that added a new subpart K in part 72 of title 10 of the Code of Federal Regulations 10 CFR
entitled General License for Storage of Spent Fuel at Power Reactor Sites 55
FR 29181; July 18, 1990. This rule also established a new subpart L in 10 CFR
part 72 entitled Approval of Spent Fuel Storage Casks, which contains procedures and criteria for obtaining NRC approval of spent fuel storage cask designs. The NRC subsequently issued a final rule on March 24, 2017 82 FR
14987, as corrected 82 FR 34387; July 25, 2017, that approved the TN
Americas LLC NUHOMS EOS Dry Spent Fuel Storage System design and added it to the list of NRC-approved cask designs in 72.214, List of approved spent fuel storage casks, as Certificate of Compliance No. 1042.
IV. Discussion of Changes On April 18, 2019, as supplemented on August 5, 2019; October 2, 2019;
October 29, 2019; June 30, 2020;
October 29, 2020; and January 27, 2021, TN Americas LLC submitted a request to amend Certificate of Compliance No.
1042 for the NUHOMS EOS Dry Spent Fuel Storage System. Amendment No. 2
revises the certificate of compliance as follows:
Adds the 61BTH Type 2 dry shielded canister transferred in the OS197 Transfer Cask for storage in the NUHOMS MATRIX HSMMX design approved in Amendment 1 to certificate of compliance No. 1042;
for the EOS37PTH dry shielded canister, adds two new heat load zone configurations for the EOS37PTH for higher heat load assemblies, up to 3.5
kW/assembly, that also allow for damaged and failed fuel storage;
for the EOS37PTH dry shielded canister, adds basket type 4H, previously introduced in certificate of compliance No. 1042, Amendment 1, for new heat load zone configurations 1, 4, 5, 6, 8, and 9;
for the EOSTC108 Transfer Cask System with the EOS37PTH dry shielded canister, adds new heat load zone configurations 4 through 9 for the 4H basket and reduce the minimum
VerDate Sep<11>2014

16:14 Aug 11, 2021

Jkt 253001

cooling times to 2 years new heat load zone configurations 2 through 9;
for the EOS37PTH dry shielded canister, increases the control component source terms to better address potential control component sources from various shutdown plants;
and revises certain certificate of compliance and technical specification items for consistency and clarity.
This amendment also revises the certificate of compliance as follows:
Adds a description of methodology on Cobalt-60 equivalence to Section 6.2.4 of the updated final safety analysis report UFSAR, Control Components, to clarify methodology for Control Components;
adds a description to UFSAR
Section 1.2.1.1 for EOS37PTH and Section 1.2.1.2 for EOS89BTH to clarify the option of using a shield plug integrated with the inner top cover plate;
updates UFSAR Section 2.4.3 to clarify the methodology to reduce the maximum allowable heat load based on the fuel assembly type; and replaces the phrase 28 days with which may be tested up to 56 days in paragraph 4.4.4 of the technical specification to clarify whether concrete testing is required based on horizontal storage module component temperatures.
As documented in the preliminary safety evaluation report, the NRC
performed a safety review of the proposed certificate of compliance amendment request. The NRC
determined that this amendment does not reflect a significant change in design or fabrication of the cask. Specifically, the NRC determined that the design of the cask would continue to maintain confinement, shielding, and criticality control in the event of each evaluated accident condition. In addition, any resulting occupational exposure or offsite dose rates from the implementation of Amendment No. 2
would remain well within the limits specified by 10 CFR part 20, Standards for Protection Against Radiation. Thus, the NRC found there will be no significant change in the types or amounts of any effluent released, no significant increase in the individual or cumulative radiation exposure, and no significant increase in the potential for or consequences from radiological accidents.
The NRC staff determined that the amended TN Americas LLC NUHOMS
EOS Dry Spent Fuel Storage System cask design, when used under the conditions specified in the certificate of compliance, the technical
PO 00000

Frm 00008

Fmt 4700

Sfmt 4700

specifications, and the NRCs regulations, will meet the requirements of 10 CFR part 72; therefore, adequate protection of public health and safety will continue to be reasonably assured.
When this direct final rule becomes effective, persons who hold a general license under 72.210 may, consistent with the license conditions under 72.212, load spent nuclear fuel into TN Americas LLC NUHOMS EOS Dry Spent Fuel Storage System casks that meet the criteria of Amendment No. 2
to Certificate of Compliance No. 1402.
V. Voluntary Consensus Standards The National Technology Transfer and Advancement Act of 1995 Pub. L.
104113 requires that Federal agencies use technical standards that are developed or adopted by voluntary consensus standards bodies unless the use of such a standard is inconsistent with applicable law or otherwise impractical. In this direct final rule, the NRC revises the TN Americas LLC
NUHOMS EOS Dry Spent Fuel Storage System cask design listed in 72.214.
This action does not constitute the establishment of a standard that contains generally applicable requirements.
VI. Agreement State Compatibility Under the Agreement State Program Policy Statement approved by the Commission on October 2, 2017, and published in the Federal Register on October 18, 2017 82 FR 48535, this rule is classified as Compatibility Category NRCAreas of Exclusive NRC
Regulatory Authority. The NRC program elements in this category are those that relate directly to areas of regulation reserved to the NRC by the Atomic Energy Act of 1954, as amended, or the provisions of 10 CFR chapter I.
Therefore, compatibility is not required for program elements in this category.
Although an Agreement State may not adopt program elements reserved to the NRC, and the Category NRC does not confer regulatory authority on the State, the State may wish to inform its licensees of certain requirements by means consistent with the particular States administrative procedure laws.
VII. Plain Writing The Plain Writing Act of 2010 Pub.
L. 111274 requires Federal agencies to write documents in a clear, concise, and well-organized manner. The NRC wrote this document to be consistent with the Plain Writing Act as well as the Presidential Memorandum, Plain Language in Government Writing, published June 10, 1998 63 FR 31885.

E:FRFM12AUR1.SGM

12AUR1