[Federal Register Volume 91, Number 38 (Thursday, February 26, 2026)]
[Proposed Rules]
[Pages 9476-9498]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2026-03865]


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Proposed Rules
                                                Federal Register
________________________________________________________________________

This section of the FEDERAL REGISTER contains notices to the public of 
the proposed issuance of rules and regulations. The purpose of these 
notices is to give interested persons an opportunity to participate in 
the rule making prior to the adoption of the final rules.

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Federal Register / Vol. 91, No. 38 / Thursday, February 26, 2026 / 
Proposed Rules

[[Page 9476]]



NUCLEAR REGULATORY COMMISSION

10 CFR Parts 20, 30, 37, 50, 51, 72, 110, 150, 170, and 171

[NRC-2023-0071]
RIN 3150-AL00


Regulatory Framework for Fusion Machines

AGENCY: Nuclear Regulatory Commission.

ACTION: Proposed rule; guidance; and request for comment.

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SUMMARY: The U.S. Nuclear Regulatory Commission (NRC) is proposing to 
amend its regulations to augment the existing byproduct material 
framework to be inclusive of fusion machines. The NRC is proposing 
requirements that are technology-inclusive to accommodate the wide 
variety of anticipated fusion machine designs across the National 
Materials Program. The NRC is also issuing for comment draft guidance 
for the implementation of this proposed rule, entitled NUREG-1556, 
Volume 22, ``Consolidated Guidance About Materials Licenses: Program-
Specific Guidance About Fusion Machine Licenses.'' The NRC will conduct 
at least one public meeting to promote full understanding of the 
proposed rule and to facilitate public comments. We seek comment on all 
aspects of this proposed rule.

DATES: Submit comments by May 27, 2026. Comments received after this 
date will be considered if it is practical to do so, but the Commission 
is able to ensure consideration of only comments received before this 
date.

ADDRESSES: You may submit comments by any of the following methods 
(unless this document describes a different method for submitting 
comments on a specific subject). The NRC encourages electronic comment 
submission through the Federal rulemaking website (please choose only 
one of the ways listed):
     Federal rulemaking website: Electronically at https://www.regulations.gov. Follow the ``Submit a comment'' instructions. If 
you are reading this document on federalregister.gov, you may use the 
green ``SUBMIT A PUBLIC COMMENT'' button beneath this rulemaking's 
title to submit a comment to the regulations.gov docket. Address 
questions about NRC dockets to Helen Chang; telephone: 301-415-3228; 
email: [email protected]. For technical questions contact the 
individuals listed in the FOR FURTHER INFORMATION CONTACT section of 
this document.
     Email comments to: [email protected]. If you do 
not receive an automatic email reply confirming receipt, then contact 
us at 301-415-1677.
     Fax comments to: Secretary, U.S. Nuclear Regulatory 
Commission at 301-415-1101.
     Mail comments to: Secretary, U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001, ATTN: Rulemakings and 
Adjudications Staff. Mailed comments must be received by the close of 
the comment period.
     Hand deliver comments to: 11555 Rockville Pike, Rockville, 
Maryland 20852, between 7:30 a.m. and 4:15 p.m. eastern time, Federal 
workdays; telephone: 301-415-1677.
    Do not include any personally identifiable information (such as 
name, address, or other contact information) or confidential business 
information that you do not want publicly disclosed. All comments are 
public records; they are publicly displayed exactly as received, and 
will not be deleted, modified, or redacted. Comments may be submitted 
anonymously.
    Follow the search instructions on https://www.regulations.gov to 
view public comments.
    You can read a plain language description of this proposed rule at 
https://www.regulations.gov/docket/NRC-2023-0071. For additional 
direction on obtaining information and submitting comments, see 
``Obtaining Information and Submitting Comments'' in the SUPPLEMENTARY 
INFORMATION section of this document.

FOR FURTHER INFORMATION CONTACT: Dennis Andrukat, Office of Nuclear 
Material Safety and Safeguards, telephone: 301-415-3561, email: 
[email protected], and Ed Harvey, Office of Nuclear Material 
Safety and Safeguards, telephone: 301-415-1897, email: 
[email protected]. Both are staff of the U.S. Nuclear Regulatory 
Commission, Washington, DC 20555-0001.

SUPPLEMENTARY INFORMATION:

Executive Summary

    The U.S. Nuclear Regulatory Commission (NRC) is proposing the 
revision of its byproduct material framework at part 30 of title 10 the 
Code of Federal Regulations (10 CFR), ``Rules of General Applicability 
to Domestic Licensing of Byproduct Material,'' for the licensing and 
oversight of the possession, use, and production of byproduct material 
associated with fusion machines. The proposed amendments to 10 CFR part 
30 are primarily focused on definitions and the content of an 
application. Proposed amendments to 10 CFR part 20, ``Standards for 
Protection Against Radiation,'' are focused on definitions and 
establishing a waste disposal site intruder assessment requirement, and 
proposed amendments to 10 CFR part 51, ``Environmental Protection 
Regulations for Domestic Licensing and Related Regulatory Functions,'' 
are focused on a requirement to submit an environmental report. In 
addition, the draft proposed rule includes changes to the definition of 
byproduct material in several other parts of the regulations (10 CFR 
parts 37, 50, 72, 110, 150, 170, and 171) as required by section 205 of 
the ADVANCE Act.\1\
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    \1\ The Accelerating Deployment of Versatile, Advanced Nuclear 
for Clean Energy (ADVANCE) Act of 2024 was signed into law on July 
9, 2024; Public Law 118-67 (https://www.congress.gov/118/plaws/publ67/PLAW-118publ67.pdf).
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    This rulemaking is separate from NRC's comprehensive review and 
reform of its regulations, including those governing transportation, in 
accordance with Executive Order (E.O.) 14300, ``Ordering the Reform of 
the Nuclear Regulatory Commission'' (90 FR 22587; May 29, 2025). The 
rulemakings associated with that effort will comprehensively reexamine 
NRC requirements, including those in 10 CFR part 30. While there could 
be additional revisions to 10 CFR part 30 as a result of these future 
rulemakings, the NRC is moving forward with publication of this 
proposed rule at this time because it is a deregulatory action of high 
interest for stakeholders that was in progress before the issuance of 
E.O. 14300. In this rule,

[[Page 9477]]

the NRC is proposing to augment the existing byproduct material 
framework in 10 CFR part 30 to be inclusive of fusion machines. The NRC 
is proposing requirements that are technology-inclusive to accommodate 
the wide variety of anticipated fusion machine designs across the 
National Materials Program.

A. Description of the Regulatory Action

    This proposed rule includes regulatory requirements for the 
possession, use, and production of byproduct material associated with 
near-term fusion machines that are consistent with existing 
requirements, to the extent practicable. The technology-inclusive and 
risk-informed focus of this rulemaking will ensure applicability for 
the wide variety of anticipated fusion machine designs while also 
accounting for the differing quantities of radioactive material that 
may be used and produced by these machines. In the context of this 
proposed rulemaking, the focus of licensing and oversight would be on 
possession, use, and production of radioactive materials associated 
with fusion machines, as well as activation products.

B. Major Provisions

    The major provisions of this proposed rule include--
     Development of a regulatory framework for licensing the 
possession, use, and production of byproduct material associated with 
fusion machines under the existing 10 CFR part 30 byproduct material 
framework. This framework would provide a systematic, risk-informed, 
performance-based approach to the licensing and oversight of byproduct 
material associated with fusion machines and their associated 
radiological hazards.
     Establishment of new proposed definitions, adopted from 
the Atomic Energy Act (AEA) of 1954, as amended by the ADVANCE Act of 
2024, to establish the scope of regulatory requirements for the 
possession, use, and production of byproduct material associated with 
fusion machines and technology-inclusive content-of-application 
requirements supportive of a performance-based approach to regulation.
     Other targeted changes to current regulations that would 
ensure the applicability of current domestic licensing practices, and 
other updates necessary for the safe and secure use of radioactive 
materials associated with fusion machines.
    Concurrent with this proposed rule, the NRC is issuing draft NUREG-
1556, Volume 22, ``Consolidated Guidance About Materials Licenses: 
Program-Specific Guidance About Fusion Machine Licenses.''

C. Costs and Benefits

    The NRC has prepared a regulatory analysis to determine the 
expected quantitative costs and benefits of this proposed rule, as well 
as qualitative factors considered in the NRC's rulemaking decision. The 
quantitative analyses evaluated four attributes: industry operation, 
NRC implementation, NRC operation, and other government entities. 
Qualitative analyses were necessary to assess the attributes of 
regulatory efficiency and increased public confidence along with 
augmenting the assessments of the attributes that were quantitatively 
assessed because monetizing the full impact of each attribute is not 
possible or practical. Fully monetizing the impact of each attribute 
would require estimation of factors such as the frequency of security-
related events and the consequences of such events.
    The analysis concluded that this proposed rule would result in net 
averted costs to the industry that exceed the net costs to Agreement 
States and the NRC. The proposed rule would result in total net benefit 
of approximately $1.38 million, and greater than a 99-percent chance 
that there would collectively be a positive net benefit. The total cost 
of the proposed rule reflects the cost impact on fusion machine 
applicants, the NRC, and Agreement States.
    Fusion machine applicants' benefits stem from clarified regulations 
resulting in lower costs. NRC costs to implement this proposed rule 
include future rulemaking costs incurred at the final rule phase and 
costs for the preparation and issuance of final guidance. The benefits 
to the NRC are avoided cost associated with the application reviews and 
the oversight of the possession, use, and production of byproduct 
material associated with fusion machines. The costs to Agreement States 
are the costs of revising their regulations to be compatible with the 
proposed rule. The benefits for Agreement States would be reduced 
efforts in licensing due to improvements in clarity. The regulatory 
analysis concludes that this proposed rule would result in a total 
estimated implementation cost of $858,000 at a 7-percent discount rate 
and $1.26 million at a 3-percent discount rate.
    The regulatory analysis results show that this rulemaking is 
justified because the total estimated quantified benefits, estimated to 
be $2.24 million at a 7 percent discount rate or $4.50 million at a 3 
percent discount rate, exceed the estimated costs of the rule. The 
regulatory analysis also considered the following qualitative 
considerations and associated benefits: regulatory efficiency and 
increased public confidence. Benefits not monetized include reduced 
need for exemptions and license conditions, and more timely completion 
of licensing and oversight. Based on the assessment of the costs and 
benefits of this proposed rule, including those benefits that are 
unquantified, the NRC has concluded that the proposed rule provisions 
would be justified to protect public health and safety and security. 
For more information, please see the regulatory analysis (ADAMS 
Accession No. ML25168A339).

Table of Contents

I. Obtaining Information and Submitting Comments
    A. Obtaining Information
    B. Submitting Comments
II. Background
    A. Introduction
    B. Rulemaking Activity
    C. What is fusion? How is it different from fission as seen in 
nuclear reactors?
    D. What is byproduct material, and why are the regulations for 
byproduct material a good fit for fusion machines?
    E. Why is the NRC undergoing rulemaking to address fusion 
machines?
III. Discussion
    A. General Scope
    B. Specific Technical Topics
    C. Implementation Guidance
IV. Specific Requests for Comment
V. Section-by-Section Analysis
VI. Regulatory Flexibility Certification
VII. Regulatory Analysis
VIII. Cumulative Effects of Regulation
IX. Plain Writing
X. Environmental Assessment and Proposed Finding of No Significant 
Environmental Impact
XI. Paperwork Reduction Act
XII. Executive Orders
XIII. Coordination With NRC Agreement States
XIV. Compatibility of Agreement State Regulations
XV. Availability of Guidance
XVI. Public Meeting
XVII. Availability of Documents

I. Obtaining Information and Submitting Comments

A. Obtaining Information

    Please refer to Docket ID NRC-2023-0071 when contacting the NRC 
about the availability of information for this action. You may obtain 
publicly available information related to this action by any of the 
following methods:
     Federal Rulemaking Website: Go to https://www.regulations.gov and search for Docket ID NRC-2023-0071.
     NRC's Agencywide Documents Access and Management System

[[Page 9478]]

(ADAMS): You may obtain publicly available documents online in the 
ADAMS Public Documents collection at https://www.nrc.gov/reading-rm/adams.html. To begin the search, select ``Begin ADAMS Public Search.'' 
For problems with ADAMS, please contact the NRC's Public Document Room 
(PDR) reference staff at 1-800-397-4209, at 301-415-4737, or by email 
to [email protected]. For the convenience of the reader, 
instructions about obtaining materials referenced in this document are 
provided in the ``Availability of Documents'' section.
     NRC's PDR: The PDR, where you may examine and order copies 
of public documents, is open by appointment. To make an appointment to 
visit the PDR, please send an email to [email protected] or call 1-
800-397-4209 or 301-415-4737, between 8 a.m. and 4 p.m. eastern time, 
Monday through Friday, except Federal holidays.

B. Submitting Comments

    The NRC encourages electronic comment submission through the 
Federal rulemaking website (https://www.regulations.gov). Please 
include Docket ID NRC-2023-0071 in your comment submission.
    The NRC cautions you not to include identifying or contact 
information that you do not want to be publicly disclosed in your 
comment submission. The NRC will post all comment submissions at 
https://www.regulations.gov as well as enter the comment submissions 
into ADAMS. The NRC does not routinely edit comment submissions to 
remove identifying or contact information.
    If you are requesting or aggregating comments from other persons 
for submission to the NRC, then you should inform those persons not to 
include identifying or contact information that they do not want to be 
publicly disclosed in their comment submission. Your request should 
state that the NRC does not routinely edit comment submissions to 
remove such information before making the comment submissions available 
to the public or entering the comment into ADAMS.

II. Background

A. Introduction

    In anticipation of future applications for licenses authorizing the 
possession, use, and production of byproduct material associated with 
fusion machines,\2\ the Commission stated in 2009 that ``the NRC has 
regulatory jurisdiction over commercial fusion energy devices whenever 
such devices are of significance to the common defense and security, or 
could affect the health and safety of the public.'' \3\ However, the 
Commission directed the NRC staff to wait until the commercial 
deployment of fusion technology became more predictable before 
expending significant resources to develop a regulatory framework.
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    \2\ With the passage of the ADVANCE Act of 2024, section 11 of 
the Atomic Energy Act of 1954 (AEA) was amended to add ``fusion 
machine'' to describe the fusion process and its resultant products. 
The ADVANCE Act also amended the AEA definition of byproduct 
material to expressly include radioactive material generated by a 
fusion machine. With the amendment of the AEA, NRC staff will now 
use the term fusion machine instead of previous terms used to 
describe the fusion process and its resultant products such as 
fusion reactor, fusion energy systems, or fusion systems. Those 
previous terms will be used if quoted from other documents.
    \3\ See Staff Requirements Memorandum (SRM)-SECY-09-0064, 
``Staff Requirements--SECY-09-0064--Regulation of Fusion-Based Power 
Generation Devices,'' dated July 16, 2009 (ADAMS Accession No. 
ML092230198).
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    Since 2009, commercial companies worldwide have continued 
development of fusion technologies using a variety of designs and fuel 
cycles.\4\ Design proof of concept, including exceeding scientific 
break-even (i.e., Q > 1) \5\ and net power production, is now targeted 
for some commercial fusion machine concepts as soon as the mid-to-late 
2020s, with commercial deployment projected to follow in the late 2020s 
and early 2030s.
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    \4\ See the Fusion Industry Association's report ``The Global 
Fusion Industry in 2023'' (https://www.fusionindustryassociation.org/fusion-industry-report-archive/).
    \5\ Q denotes the ratio of the energy of the fusion products to 
the energy used to heat the plasma. Q = 1 would denote the fusion 
breakeven point where equal amounts of energy were used and produced 
by the fusion machine. Q > 1 denotes the fusion machine generated 
more energy than it used to heat the plasma, while Q < 1 denotes the 
fusion machine generated less energy than it used to heat the 
plasma.
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    In 2019, the Nuclear Energy Innovation and Modernization Act 
(NEIMA) required the NRC to develop the regulatory infrastructure to 
support the development and commercialization of advanced nuclear 
reactors, including both nuclear fission reactors and fusion 
machines.\6\ Section 103 of NEIMA requires the NRC to complete a 
rulemaking to establish a technology-inclusive regulatory framework for 
optional use by commercial advanced nuclear reactor applicants by 
December 31, 2027.
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    \6\ The ADVANCE Act of 2024 amended NEIMA to replace ``fusion 
reactor'' with ``fusion machine.''
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    In response to NEIMA and due to the continued development of fusion 
technologies, the Commission in 2020 directed the NRC staff to 
``consider the appropriate treatment of fusion reactor designs in our 
regulatory structure by developing options for Commission consideration 
on licensing and regulating fusion energy systems.'' \7\ In its 
November 2, 2020, response to this Commission direction, the NRC staff 
stated that it would assess the potential risks posed by fusion 
technologies and explore regulatory approaches separate from the 
ongoing rulemaking for advanced nuclear fission reactors that would 
create 10 CFR part 53, ``Risk-Informed, Technology-Inclusive Regulatory 
Frameworks for Commercial Nuclear Plants.''
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    \7\ SRM-SECY-20-0032, ``Staff Requirements--SECY-20-0032--
Rulemaking Plan on `Risk-Informed, Technology-Inclusive Regulatory 
Framework for Advanced Reactors (RIN-3150-AK31; NRC-2019-0062),' '' 
dated October 2, 2020 (ADAMS Accession No. ML20276A293).
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    The NRC staff developed an options paper \8\ that included three 
potential approaches for the regulation of fusion machines: (1) a 
utilization facility approach, (2) a byproduct material approach, and 
(3) a hybrid approach. The utilization facility approach would use the 
part 53 framework and apply the requirements for fission facilities to 
fusion machines. The byproduct material approach would use the existing 
10 CFR part 30 framework, along with a limited-scope rulemaking 
proposed by the NRC staff. The hybrid approach would have the NRC first 
regulate fusion machines under the part 30 framework but later develop 
decision criteria to identify whether a fusion machine design should be 
regulated under a part 53 framework. The NRC would develop the criteria 
during a future limited-scope rulemaking.
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    \8\ SECY-23-0001, ``Options for Licensing and Regulating Fusion 
Energy Systems,'' dated January 3, 2023 (ADAMS Accession No. 
ML22273A178).
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B. Rulemaking Activity

    The Commission directed the NRC staff to proceed with a rulemaking 
on fusion machines in ``Staff Requirements--SECY-23-0001--Options for 
Licensing and Regulating Fusion Energy Systems,'' dated April 13, 
2023.\9\ The Commission chose the byproduct material approach (Option 
2) using the existing 10 CFR part 30 framework. The Commission further 
stated that this rulemaking should--
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    \9\ SRM-SECY-23-0001, ``Staff Requirements--SECY-23-0001--
Options for Licensing and Regulating Fusion Energy Systems,'' dated 
April 13, 2023 (ADAMS Accession No. ML23103A449).
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     Take into account the existence of fusion machines that 
already have been licensed and are being regulated by the Agreement 
States, as well as those that may be licensed prior to the completion 
of the rulemaking;
     Develop a new volume of NUREG-1556, ``Consolidated 
Guidance About Materials Licenses,'' dedicated to fusion

[[Page 9479]]

machines, so as to provide consistent guidance across the National 
Materials Program;
     Evaluate whether controls-by-design approaches, export 
controls, or other controls are necessary for near-term fusion 
machines; and
     If in the future, the NRC staff, in consultation with the 
Agreement States, determines that an anticipated fusion design presents 
hazards sufficiently beyond those of near-term fusion technologies, the 
NRC staff should notify the Commission and make recommendations for 
taking appropriate action as needed.
    On July 9, 2024, the ADVANCE Act of 2024 \10\ was signed into law. 
Section 205 of the ADVANCE Act amended section 11 of the AEA to add the 
definition of ``fusion machine'' and amended the definition of 
``byproduct material'' to include fusion machine generated radioactive 
material in section 11e.(3)(B). The ADVANCE Act thus establishes that, 
for the purposes of the AEA's definition of byproduct material, fusion 
machines are a subset of particle accelerators. In addition, the AEA's 
amended definition creates two criteria for determining whether 
radioactive material produced through use of a particle accelerator is 
byproduct material under AEA section 11e.(3)(B): one set of criteria 
for fusion machines, and another set for particle accelerators that are 
not fusion machines.\11\ These changes are included in this rulemaking.
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    \10\ The Accelerating Deployment of Versatile, Advanced Nuclear 
for Clean Energy (ADVANCE) Act of 2024 was signed into law on July 
9, 2024; Public Law No: 118-67 (https://www.congress.gov/118/plaws/publ67/PLAW-118publ67.pdf).
    \11\ Under AEA section 11e.(3)(B)(i), byproduct material is any 
material that has been made radioactive by use of a particle 
accelerator, including by use of a fusion machine. Under AEA section 
11e.(3)(B)(ii), byproduct material is any material that if made 
radioactive by use of a particle accelerator that is not a fusion 
machine, is produced, extracted, or converted after extraction, 
before, on, or after August 8, 2005, for use for a commercial, 
medical, or research activity (42 U.S.C. 2011 et seq.).
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    The ADVANCE Act also amended section 103 of NEIMA to delete 
``fusion reactor'' and replace it with ``fusion machine.'' Finally, 
subsection 205(c) of the ADVANCE Act requires the NRC to submit a 
report to Congress, by July 9, 2025, on design-specific licensing 
frameworks for ``mass-manufactured fusion machines''; and provide an 
estimated timeframe for the NRC to issue regulations or guidance for 
licensing mass-manufactured fusion machines. This report is being 
prepared separately from this rulemaking.

C. What is fusion? How is it different from fission as seen in nuclear 
reactors?

    Fusion machines are distinctly different from fission reactors. 
Fusion is a process in which two or more atomic nuclei are combined to 
form a heavier element, releasing energy along with charged particles 
and neutrons. In addition to heat, particles, and electromagnetic 
radiation, fusion machines can produce tritium, neutrons, and neutron 
activation products that need to be properly contained to protect 
public health and safety. The generation of net energy from fusion 
requires creating conditions, such as in a plasma,\12\ that confines 
the particles and energy for long enough time at high enough density 
and temperature so that the energy produced by the fusion reactions 
exceeds the energy used to create and maintain the conditions. Fusion 
reactions require active control to sustain these specific conditions, 
such as maintaining confinement of the plasma at fusion conditions, 
otherwise fusion reactions will cease along with the production of 
radiation and radioactive material. There can be long-term generation 
of decay heat in the structures due to the decay of radionuclides made 
radioactive by neutrons from the fusion reactions, but the level of 
decay heat generated is not expected to require engineered emergency 
heat removal systems.
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    \12\ A plasma is a state of matter consisting of positive ions 
and free electrons with a small overall electrical charge that is 
dominated by electric and magnetic interactions.
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    Fission, as seen in nuclear reactors, is the splitting of a heavy 
atom (usually enriched uranium-235), which releases energy (usually in 
the form of heat) that can be used to produce electricity. Fission may 
be spontaneous but is usually caused by the nucleus of an atom becoming 
unstable after capturing or absorbing a neutron. During fission, the 
heavy nucleus splits into roughly equal parts, producing radionuclides 
of at least two lighter elements that can be radioactive. There must be 
enough neutrons being released from fissions to maintain a self-
sustaining fission reaction rate, namely criticality. Unlike fusion 
reactions, self-sustaining fission reactions require active control to 
maintain criticality and, when necessary, to cease the fission 
reactions (i.e., reach a sub-critical condition). Fission reactors also 
generate long-term decay heat at a high enough level that they need 
engineered emergency heat removal systems to ensure that the decay heat 
is removed from the system.

D. What is byproduct material, and why are the regulations for 
byproduct material a good fit for fusion machines?

    Byproduct material is regulated under the framework presented in 10 
CFR part 30. Byproduct material is currently defined in 10 CFR part 30 
as (1) any radioactive material (except special nuclear material) 
produced or made radioactive by exposure to the radiation incident to 
the process of producing or using special nuclear material (this 
includes most of the available inventory of the radionuclide hydrogen-3 
also known as tritium); (2) any discrete source of radium-226 that is 
produced, extracted, or converted after extraction, before, on, or 
after August 8, 2005, for use for a commercial, medical, or research 
activity; or (3) any material that has been made radioactive by use of 
a particle accelerator and is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity. In addition, the NRC, in 
consultation with the Environmental Protection Agency (EPA), Department 
of Energy (DOE), Department of Homeland Security (DHS), and others, can 
designate as byproduct material any source of naturally occurring 
radioactive material, other than source material, that the NRC 
determines would pose a threat to public health and safety or the 
common defense and security of the United States and has been extracted 
or converted after extraction for use in a commercial, medical, or 
research activity.
    The NRC currently uses an approach to licensing byproduct material 
that regulates the potential hazards from a wide spectrum of 
technologies, from lower risk portable nuclear gauges to higher risk 
panoramic irradiators and commercial manufacturers of radioactive 
sources or devices. Byproduct material regulations provide a 
comprehensive list of technical and regulatory areas that must be 
addressed in the licensing processes. NUREG-1556, ``Consolidated 
Guidance About Materials Licenses,'' provides guidance on meeting those 
requirements. For larger quantities of byproduct material, such as 
those that may be present at commercial fusion machine sites, NRC 
regulations, such as 10 CFR parts 20 and 30, include specific 
programmatic requirements, such as those related to financial 
assurance, emergency planning, waste management, and decommissioning.
    The types of radioactive materials and hazards associated with a 
near-term fusion machine are more aligned with those of a byproduct 
material license

[[Page 9480]]

holder than those of a nuclear power plant. For example, key areas of 
focus for protecting public health and safety for byproduct material 
license holders are confinement of radioactive materials, shielding to 
protect people from radiation hazards, consideration of potential 
supporting systems for breeding tritium, and the accountability of 
tritium or other radionuclides at the site. Potential radiological 
hazards posed by fusion machines include the following:
     Significant quantities of tritium may be located on the 
site, including within the vacuum vessel, in processing, in storage, 
and permeated into structural materials.\13\
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    \13\ The maximum inventory of tritium at the International 
Thermonuclear Experimental Reactor (ITER) is expected to be 4,000 
grams (about 40 million curies). Commercial companies pursuing 
fusion machines for deployment in the United States have 
communicated to the NRC that tritium inventories for their designs 
are expected to be significantly less (about 5 to 10 million 
curies).
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     During operation, fusion machines represent a large 
radiation source, including high-energy neutrons and gamma radiation, 
that requires shielding and containment of activated components.
     Neutron bombardment will activate components, with 
quantities of activation products increasing over time.
     Energetic plasma-surface interactions with the vacuum 
vessel interior wall may generate dust containing tritium and 
activation products.
     Fusion also can directly generate radioactive materials; 
for example, about 50 percent of the time, when two deuterium atoms are 
fused together (D-D fusion), the fusion reaction generates a tritium 
atom (the other direct products are not radioactive).
    Fusion machines may use byproduct material as fuel or may produce 
byproduct material, such as through exposure of nonradioactive material 
to neutron radiation or from the fusion reactions. The byproduct 
material framework provides a flexible approach to regulate the 
anticipated diversity of fusion designs, fuels, and quantities of 
radioactive materials produced by a fusion machine.

E. Why is the NRC undergoing rulemaking to address fusion machines?

    Besides incorporating the statutory changes to the AEA and the 
NEIMA requirement for the NRC to establish fusion machine (advanced 
reactor) regulations by December 31, 2027, the NRC also endeavored to 
provide centralized, predictable, dedicated fusion machine regulations 
and guidance. Rulemaking would allow for the timely alignment of the 
licensing and regulation of the possession, use, and production of 
byproduct material associated with fusion machines across the NRC and 
the Agreement States, as part of the National Materials Program, to 
provide near-term regulatory predictability for fusion developers, 
regulators, and the public. In addition, the participation of the 
public in the Administrative Procedure Act rulemaking process enables 
all stakeholders (e.g., regulators, industry, and the public) to 
interact, provide feedback, and gain an understanding of the risks, 
costs, cost savings, and benefits of this new technology.
    In this proposed rule, the NRC proposes definitions to establish 
the scope of regulatory requirements for the possession, use, and 
production of byproduct material associated with fusion machines and 
technology-inclusive content-of-application requirements supportive of 
a performance-based approach to regulation. Other targeted changes to 
current regulations and guidance would ensure the applicability of 
current domestic licensing practices, and other updates necessary for 
the safe and secure use of radioactive materials used in a fusion 
machine.

III. Discussion

A. General Scope

    The NRC is undertaking a limited-scope rulemaking to license and 
regulate the possession, use, and production of byproduct material 
associated with fusion machines. The proposed changes would amend 10 
CFR parts 20, 30, 37, 50, 51, 72, 110, 150, 170, and 171, include 
changes to definitions, content-of-application requirements, 
recordkeeping and inspection requirements, intruder assessment 
requirements for waste disposal sites, and environmental report 
submission requirements. This proposed rule is focused on fusion 
machines for both commercial and research and development purposes that 
are currently contemplated for deployment in the near term. At the time 
of this rule, there are 29 fusion companies \14\ based in the United 
States, including several that are constructing proof-of-concept 
facilities. The phrase ``near-term'' for fusion machines was described 
in SECY-23-0001 and is not used to refer to a particular timeframe; 
rather, it encompasses certain characteristics associated with all the 
known approaches to fusion currently being researched or under 
development. As described in SECY-23-0001, these include--
---------------------------------------------------------------------------

    \14\ See Fusion Industry Association's report on ``Global Fusion 
Industry Report,'' dated July 22, 2025.
---------------------------------------------------------------------------

     No fissile material is present, and criticality (a self-
sustaining neutron chain reaction) is not possible.
     Energy and radioactive material production from fusion 
reactions cease without any intervention in off-normal events or 
accident scenarios.
     Active post shutdown cooling of the fusion machine's 
structures containing radioactive material is not necessary to prevent 
a loss of radiological confinement (i.e., vessel breach).\15\
---------------------------------------------------------------------------

    \15\ See EURFUBRU XII-217/95, Safety and Environmental 
Assessment of Fusion Power (SEAFP): Report of the SEAFP Project, 
European Commission DG XII, Fusion Programme, issued June 1995 
(https://www.researchgate.net/publication/303252621_Safety_and_Environmental_Assessment_of_Fusion_Power_SEAFP_Final_Report_of_the_SEAFP_Project).
---------------------------------------------------------------------------

     Radionuclides present in the fusion machine, in processing 
or storage, or in activated materials, in any significant mobilizable 
amount are expected to result in low doses to workers and member of the 
public during credible accident scenarios (e.g., less than 1 rem (10 
millisievert (mSv)) effective dose equivalent to a person offsite).
     Active engineered features (e.g., plasma confinement 
mechanisms, vacuum maintaining systems, fuel injection, external 
heating) are needed to achieve sustained fusion reaction.
    The NRC considered these characteristics and the level of risk 
associated with the scientific and technical approaches to fusion known 
to the NRC at the time of this rulemaking.\16\ The proposed rule, while 
technology inclusive, is not intended to address speculative fusion 
technologies significantly different from those being researched, 
developed, piloted, and deployed today (for example, today's design 
types include tokamak, stellarator, z-pinch, field reverse, and 
configurations with fuels that include deuterium-tritium, deuterium-
helium-3, and proton-boron-11). The NRC will continue to monitor the 
development of fusion technology as it advances towards 
commercialization.
---------------------------------------------------------------------------

    \16\ See e.g., the National Academies of Science report, 
``Bringing Fusion to the US Grid,'' issued in 2021 (https://doi.org/10.17226/25991); UKAEA-RE(21)01, ``Technology Report--Safety and 
Waste Aspects for Fusion Power Plants,'' issued September 2021 
(https://scientific-publications.ukaea.uk/wp-content/uploads/UKAEA-RE2101-Fusion-Technology-Report-Issue-1.pdf); and the Fusion 
Industry Association's report, ``The Global Fusion Industry in 
2023,'' (https://www.fusionindustryassociation.org/fusion-industry-report-archive/).
---------------------------------------------------------------------------

    The proposed rule would add new requirements and modify some 
existing

[[Page 9481]]

requirements to license and oversee the possession, use, and production 
of byproduct material associated with fusion machines under the 10 CFR 
part 30 byproduct material framework. Agreement States are currently 
using requirements compatible with 10 CFR part 30 and have safely 
regulated laboratory-scale fusion research and development systems for 
over 25 years. The 10 CFR part 30 requirements include safety, 
security, emergency preparedness, and radiation protection for workers 
and the public. Each applicant would need to provide specific design 
information and proposed radiological materials that will be used or 
generated (quantity and form), which would further shape the NRC's 
understanding of potential hazards that can impact safety, security, 
and emergency preparedness. This information may result in the need for 
specific license conditions. This proposed rulemaking does not amend 10 
CFR parts 170 and 171 to add new initial application of annual fee 
categories for fusion machines. New fees for the possession, use, and 
production of byproduct material associated with fusion machines will 
be proposed in the annual fee rule following publication of the final 
rule for this rulemaking. The NRC uses annual fee rules to make changes 
to the NRC's fees; therefore, the NRC is not proposing any fee-related 
amendments for the possession, use, and production of byproduct 
material associated with fusion machines in this proposed rule.
    Informed by stakeholder interactions during the development of this 
proposed rule, the NRC has concluded that the current requirements for 
key topics such as emergency preparedness, physical security, radiation 
protection, and waste disposal (except for a small adjustment to 10 CFR 
part 20) are adequate for near-term designs. The fusion industry is 
emerging rapidly, and designs are both diverse and evolving. The NRC, 
in consultation with the Agreement States, will continue to evaluate 
the hazards presented by near-term fusion designs as they are developed 
for deployment. Additionally, the NRC has coordinated with DOE on 
topics such as tritium handling, training, international cooperation, 
and public outreach and the NRC will continue to collaborate with 
Federal partners, as needed.
    The NRC, and the Atomic Energy Commission before it, has experience 
licensing new and rapidly evolving technologies. The NRC has authority 
under Sec.  30.32(b) to require additional information as necessary to 
evaluate an application, and under Sec.  30.34(e) to impose any license 
conditions, orders, or other requirements needed to ensure that fusion 
machines will be operated safely and securely. As stated in Sec.  
30.33(b), the NRC will only grant a license upon a determination that 
the application meets the requirements of the Atomic Energy Act of 
1954, as amended, which includes protection of the public health and 
safety and promotion of the common defense and security. In the 
proposed rule, the NRC is specifying the basic regulatory requirements 
that applicants must meet (e.g., dose limits) and providing licensing 
guidance that asks for basic information to ensure a common 
understanding of the machine such that it will provide adequate public 
health and safety (such as meeting dose limits and training of 
radiation safety staff and users). This performance-based approach 
provides safety and security while providing the applicant or licensee 
the necessary flexibility to design and innovate its fusion machine 
design. This paragraph in this proposed rule is intended to explain how 
the licensing and oversight provisions allow for the use of flexible, 
technology appropriate safety measures even though these measures are 
not prescribed in the regulations.
    If the NRC receives an application for the possession, use, and 
production of byproduct material associated with a near-term fusion 
machine that includes safety and security elements that were not 
anticipated, the proposed and existing regulations under 10 CFR part 30 
afford the NRC adequate authority to impose requirements to carry out 
that responsibility on a case-by-case basis. In addition, the NRC will 
continue to work with the Agreement States to ensure that the States 
have licensing and inspection programs for fusion machines that are 
compatible and provide consistency across the National Materials 
Program.
    For waste disposal, new proposed rule language would allow fusion-
machine-produced byproduct material that was not considered during the 
development of the existing 10 CFR part 61, ``Licensing Requirements 
for Land Disposal of Radioactive Waste'' (47 FR 57463; December 27, 
1982), to be disposed at low-level radioactive waste (LLW) disposal 
facilities. This disposal path for materials used or generated in a 
fusion machine provides safe disposal at existing LLW disposal 
facilities.
    For emergency preparedness, the NRC would continue to require 
applicants to determine if the maximum dose to a person offsite could 
exceed 1 rem (10 mSv), and if so, to provide an emergency plan for 
offsite protection of the public. The basis for the offsite dose 
evaluation and the subsequent emergency plan (if needed) would consider 
the unique characteristics of the radionuclides generated or used by 
the fusion machine, such as dispersion and radiochemistry. Separately, 
an onsite emergency plan, or emergency procedures, would be needed 
based on the potential events and radiological hazards within the site 
boundary of each fusion machine.
    For physical security, the quantities or forms of radioactive 
material associated with the fusion machine possessed by a licensee may 
warrant additional protection beyond that required by 10 CFR part 20, 
and those radionuclides may not be listed in appendix A to 10 CFR part 
37, ``Physical protection of category 1 and category 2 quantities of 
radioactive material.'' In such cases, the NRC would determine on a 
case-by-case basis if other additional security requirements are 
warranted (e.g., based on the use of structural materials that create 
new radionuclides of concern through activation).
    For radiation protection, the existing 10 CFR part 20 radiation 
safety requirements apply to all licensees currently regulated by the 
NRC. Licensees that possess fusion machines would be required to meet 
these 10 CFR part 20 radiation safety requirements, some of which may 
or may not apply depending on a licensee's specific radioactive 
materials and their quantities. Therefore, this proposed rule would 
require applicants to describe what radionuclides and quantities will 
be used and produced in their specific fusion designs, which would 
allow regulators to evaluate how these requirements apply to a fusion 
machine before a license can be issued.

B. Specific Technical Topics

    This proposed rule would revise requirements in several technical 
areas. The NRC also considered certain additional technical areas 
(e.g., export controls, emergency preparedness) to determine if 
revisions were needed but, as described above, ultimately concluded no 
new or amended requirements were necessary beyond those described 
below.
1. Defining Fusion Machines and Particle Accelerators
    This proposed rule would add a new definition for ``fusion 
machine'' in Sec. Sec.  20.1003 and 30.4 of this chapter; revise the 
definition of ``particle accelerator'' in Sec. Sec.  20.1003, 30.4, and 
110.2 of this chapter; and revise the definition of ``byproduct 
material'' in Sec. Sec.  20.1003, 30.4, 37.5, 50.2, 72.3, 110.2,

[[Page 9482]]

150.3, 170.3, and 171.5 of this chapter. The NRC has been evaluating 
the linkage between fusion devices and particle accelerators for 
several years, and these definitions have been a topic of extensive 
discussion with stakeholders. Congress clarified this issue with the 
passage of the ADVANCE Act of 2024. The ADVANCE Act clarified this 
linkage by clearly defining all fusion-machine-produced radioactive 
material as falling within the AEA's existing definition for byproduct 
material. Specifically, the term ``fusion machine'' was added to 
section 11 of the AEA and ``byproduct material'' was amended in section 
11e.(3)(B) to include any material that (i) has been made radioactive 
by use of a particle accelerator, including by use of a fusion machine; 
and (ii) if made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity.\17\ As explained above, the 
AEA's amended definition creates two criteria for determining whether 
radioactive material produced through use of a particle accelerator is 
byproduct material under AEA section 11e.(3)(B): one set of criteria 
for fusion machines, and another set for particle accelerators that are 
not fusion machines.
---------------------------------------------------------------------------

    \17\ The term ``particle accelerator'' is not defined in the 
AEA. The NRC's proposed regulatory definitions would define fusion 
machines as a subset of particle accelerators. The new requirements 
would apply to fusion machine applicants and licensees.
---------------------------------------------------------------------------

    The ADVANCE Act also amended NEIMA to change ``fusion reactor'' to 
``fusion machine'' and points to the fusion machine definition under 
the ADVANCE Act. The definition of fusion machine in the ADVANCE Act 
and proposed for this rulemaking does not define fusion but focuses on 
what broadly is the role of the ``machine,'' i.e., transforming atomic 
nuclei using fusion processes and capturing and using the resultant 
products from those processes. Given the diversity of fusion processes 
and designs currently under consideration, the new definition provides 
the flexibility to be incorporated into NRC's part 30 framework in a 
technology-inclusive manner. The proposed regulatory framework would 
provide a risk-informed approach to protecting workers, the public, and 
the environment from the possession, use, and production of byproduct 
material associated with fusion machines.
    The NRC's existing regulations and guidance (i.e., NUREG-1556, 
Volume 21, ``Consolidated Guidance About Materials Licenses: Program-
Specific Guidance About Possession Licenses for Production of 
Radioactive Material Using an Accelerator'') provide for the licensing 
of particle accelerators. Consistent with the distinction in the AEA 
between byproduct material produced by fusion machines and other 
particle accelerators, the NRC's proposed definitions would consider 
fusion machines as a subset of particle accelerators. This approach 
would affirmatively establish that existing guidance for particle 
accelerators would not apply to fusion machines.
    In addition, the NRC would revise the part 110.2 definition for 
``byproduct material'' to replace the reference to 10 CFR 20.1003 with 
the language found in 10 CFR 20.1003. This change would be consistent 
with the definition language found in the other byproduct material 
definitions in this chapter.
2. Specific Requirements for Fusion Machines
    This proposed rule would add new Sec. Sec.  30.32(k), 30.33(a)(6), 
and 51.60(b)(1)(viii) of this chapter. This proposed rule would also 
amend existing regulations in Sec. Sec.  20.2008, 30.51(a) introductory 
text, 30.51(a)(1), and 30.52(a) of this chapter. The proposed new 
sections Sec. Sec.  30.32(k) and 30.33(a)(6) are specific to the 
license application requirements for the possession, use, and 
production of byproduct material associated with fusion machines. The 
proposed new paragraph Sec.  51.60(b)(1)(viii) is specific to the 
submission of an environmental report for the possession, use, and 
production of byproduct material associated with fusion machines. The 
proposed new language in paragraph Sec.  20.2008(a) is specific to the 
disposal requirements for waste from a fusion machine. The remaining 
proposed changes amending the existing regulations in Sec. Sec.  
30.51(a) introductory text, 30.51(a)(1), and 30.52(a) of this chapter 
are conforming changes to existing byproduct material requirements to 
address specific attributes of fusion machines.
    This proposed rule would add technology-inclusive, content-of-
application requirements supportive of a performance-based approach to 
regulating the possession, use, and production of byproduct material 
associated with fusion machines. The content-of-application section 
would provide the requirements for the licensing of byproduct material 
associated with a fusion machine which would be supplemented by the 
current general regulatory requirements and the terms and conditions of 
licenses already contained in Sec. Sec.  30.32, 30.33, and 30.34. In 
addition to the contents of application, other conforming changes would 
be added specific to fusion machines.
    The proposed contents of application section in Sec.  30.32(k) 
would require that an applicant for a license to possess, use, and 
produce byproduct material associated with a fusion machine provide 
several items:
    (1) a general description of the fusion machine;
    (2) a summary of operating and emergency procedures related to 
radiation safety;
    (3) a description of the radiation safety organizational structure;
    (4) a description of the training program for fusions machines and 
radiation protection;
    (5) a description of inspection and maintenance programs; and
    (6) a description of the methodology for maintaining a radioactive 
material inventory.
    In the summary of the procedures important to radiation protection, 
the applicant must provide descriptions of (1) the radiation protection 
measures to be employed for byproduct material, including all 
interlocks, access control systems, shielding, and radiation monitors; 
(2) the byproduct material handling systems procedures and inventory 
control procedures; and (3) description of any other components or 
systems used to control radiation and radioactive material.
    The proposed contents of application for the possession, use, and 
production of byproduct material associated with fusion machines also 
would give an applicant an alternative to providing a description of 
the fusion machine and operational programs relative to radiation 
safety as proposed in Sec.  30.32(k)(2)(i)-(iii). The alternative 
pathway, proposed in Sec.  30.32(k)(2)(iv), would require the applicant 
to provide a description of any aspects of the fusion machine relevant 
to radiation safety that differ from the information listed in 
paragraphs (k)(2)(i) through (iii), an explanation for how those 
aspects of the application ensure the fusion machine can be operated 
safely, and any other information requested by the NRC during 
preapplication communications to enable the NRC to evaluate whether the 
applicant can safely possess, use, and produce byproduct material 
associated with a fusion machine. This technology-inclusive approach to 
licensing recognizes the diversity of fusion machine designs currently 
being considered and possible in the future while helping to provide 
early

[[Page 9483]]

awareness of some information the applicant would need to provide to 
allow the NRC to determine whether byproduct material associated with a 
fusion machine can be possessed, used, and produced safely.
    A new, proposed paragraph would be added to Sec.  30.33(a)(6) to 
specifically provide the general requirement for approving an 
application to license the possession, use, and production of byproduct 
material associated with a fusion machine.
    A new, proposed paragraph would be added to Sec.  51.60(b)(1)(viii) 
to require that an environmental report be prepared for the 
construction and operation of a fusion machine unless a categorical 
exclusion applies.\18\ The NRC expects that scope of the environmental 
report would be discussed during any voluntary preapplication 
discussions described in Sec.  30.32(k)(2)(iv)(B).
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    \18\ Based on case-specific circumstances, a categorical 
exclusion may apply. Categorical exclusions are established by rule 
in Sec.  51.22 for categories of actions that the Commission has 
found do not individually or cumulatively have a significant effect 
on the human environment. Even if a categorical exclusion would 
otherwise apply, the NRC may determine that special circumstances 
are present that warrant the preparation of an environmental 
document.
---------------------------------------------------------------------------

    Radioactive material as defined in paragraphs (3) and (4) of the 
definition of byproduct material in Sec.  20.1003 is not LLW.\19\ Given 
that fusion machines produce radioactive material that meets paragraph 
(3) of the definition of byproduct material, the NRC is proposing to 
include new language in paragraph (a) to Sec.  20.2008 that would allow 
certain licensed waste from fusion machines to be disposed in a LLW 
disposal facility. The addition would not affect the ability of waste 
to be disposed of under Sec.  20.2002 (e.g., in a hazardous waste 
facility) if it met any other applicable State and Federal 
requirements. The NRC is not proposing any changes to Sec.  20.2006 or 
appendix G to 10 CFR part 20 because those requirements are 
sufficiently general to apply to fusion machine generated waste without 
modification. The NRC would add Sec.  20.2008 to the list of approved 
information collections in Sec.  20.1009.\20\
---------------------------------------------------------------------------

    \19\ Some radioactive material, added to the AEA definition of 
byproduct material by Section 651(e) of the Energy Policy Act of 
2005 and ADVANCE Act of 2024, has special status relating to its 
disposal at LLW disposal facilities. These 11e.(3) and (4) byproduct 
materials include certain discrete sources of radium 226 
(11e.(3)(A)), radioactive material resulting from operation of an 
accelerator or a fusion machine (11e.(3)(B)), and certain other 
discrete source[s] of naturally occurring radioactive material, 
other than source material (11e.(4)). As described in AEA sections 
81b. and c., 11e.(3) and (4) byproduct materials intended for 
disposal are not considered LLW under the Low-Level Radioactive 
Waste Policy Act but may nevertheless be disposed of at near surface 
LLW disposal facilities. Under NRC regulations, licensed material 
that contains LLW must be disposed of in accordance with the 
requirements for LLW. Thus, licensed material that contains a mix of 
LLW and 11e.(3) and (4) byproduct material must be disposed of as 
LLW. In addition, AEA section 81c. provides that 11e.(3) and (4) 
byproduct material may be disposed of at hazardous waste facilities.
    \20\ Concurrent with the development of this rulemaking, the NRC 
staff proposed to the Commission, a revision of 10 CFR part 61 in a 
separate rulemaking activity. See SECY-24-0045, ``Proposed Rule: 
Integrated Low Level Radioactive Waste Disposal,'' dated May 29, 
2024 (ADAMS Accession No. ML23242A249). The draft proposed part 61 
rule, if approved by the Commission, would not conflict with the 
fusion machine rule's proposed changes to Sec.  20.2008. Similarly, 
the draft proposed changes to 10 CFR part 61 would not change the 
requirements for disposal of fusion machine waste.
---------------------------------------------------------------------------

    The NRC is proposing to amend Sec. Sec.  30.51(a) and 30.52(a) to 
include requirements for recordkeeping and to allow inspection of the 
production of byproduct material. Maintaining records of the total 
quantity of byproduct material possessed by the licensee is important, 
including that material produced and used by the fusion machine, for 
purposes of material control and accountability, maintaining adequate 
financial assurance, and evaluation of offsite doses from routine and 
accidental releases. The NRC recognizes that calculating the total 
quantity of byproduct material may be complex and the uncertainties in 
those calculations for fusion machines have yet to be determined. The 
draft NUREG-1556 acknowledges the complexity of accountability and 
provides flexibility for licensees to use computational methods for 
this purpose. Additionally, the NRC is supportive of receiving feedback 
from industry and academia on proposals for byproduct material 
accountability.
3. Decommissioning and Financial Assurance
    It is expected that some licensees that possess, use, and produce 
byproduct material associated with a fusion machine would need to meet 
the existing requirements for financial assurance or a decommissioning 
funding plan as described in Sec.  30.35. The NRC is not proposing 
changes to these requirements for decommissioning and financial 
assurance because the existing regulations already provide the needed 
flexibility based on the quantity of radioactive material remaining at 
the facility at the end of life. The current regulations already offer 
fusion machine applicants a clear pathway to determine the appropriate 
level of financial assurance for decommissioning their facility and to 
fund that decommissioning using a financial instrument that aligns with 
their business model and needs.. For the same reasons, the NRC is not 
proposing revisions to NUREG-1757, Volumes 1-3, ``Consolidated 
Decommissioning Guidance.''
4. Emergency Preparedness
    For an application to possess, use, and produce byproduct material 
associated with a fusion machine submitted to the NRC, the proposed 
rule would require the applicant under Sec.  30.32(k)(2) to submit a 
summary of the radiation safety aspects of the written operating and 
emergency procedures. Onsite emergency procedures are needed to handle 
events ranging from a minor spill to a larger incident that could 
require intervention by outside emergency response personnel. The NRC 
is issuing draft guidance, Volume 22 of NUREG-1556, ``Consolidated 
Guidance About Materials Licenses: Program-Specific Guidance About 
Possession Licenses for Fusion Machines,'' for public comment with this 
proposed rule that includes guidance on developing emergency procedures 
for fusion machines. This draft guidance is similar to the emergency 
procedure guidance available in other volumes of NUREG-1556 for similar 
types of 10 CFR part 30 licenses. This draft guidance describes what an 
applicant should consider regarding response capabilities for 
protecting onsite personnel, as well as coordination with fire, 
medical, and local law enforcement agencies, as needed, for an incident 
at a fusion machine facility.
    Potential unsealed sources of radioactive material for fusion 
machines include tritium for fuel and materials made radioactive by 
exposure to neutrons from the fusion reactions (activated materials). 
Activated materials may contribute to offsite doses during an 
accidental offsite release of radioactive material.
    In accordance with the requirements of Sec.  30.32(i), each 
application to possess radioactive materials in unsealed form in excess 
of quantities in Sec.  30.72, ``Schedule C--Quantities of radioactive 
materials requiring consideration of the need for an emergency plan for 
responding to a release,'' must contain either an evaluation showing 
that the maximum dose to a person offsite due to a release of 
radioactive materials would not exceed 1 rem (10 mSv) effective dose 
equivalent or 5 rem (50 mSv) to the thyroid, or the application must 
contain an emergency plan for responding to the release of radioactive

[[Page 9484]]

material. Draft Volume 22 of NUREG-1556 includes program-specific 
guidance for how applicants to possess, use, and produce byproduct 
material associated with a fusion machine can meet the requirements for 
the dose evaluation to demonstrate that an offsite emergency plan is 
not needed, and guidance for applicants for the contents of an 
emergency plan when one may be needed.
5. Environmental Review
    Under the proposed Sec.  51.60(b)(1)(viii) the applicant would be 
required to include an environmental report unless a categorical 
exclusion applies. Requiring an applicant to develop an environmental 
report would enable the NRC to fully assess the environmental impacts 
of these novel and evolving fusion machine designs.
    The NRC would review the environmental report with each application 
pursuant to the regulation in 10 CFR part 51. The NRC can prepare an 
environmental assessment (EA) under Sec.  51.21 if the NRC expects the 
findings to not be significant and could reach a finding of no 
significant impact (FONSI). If an EA cannot reach a FONSI, an 
environmental impact statement (EIS) under Sec.  51.20 would be 
prepared. An EIS would not be prepared by default, as is done in other 
portions of the NRC's regulatory process, but only if the circumstances 
warrant or the Commission so directs.\21\
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    \21\ The Commission could determine, under Sec.  51.20(b)(14), 
that a particular licensing action is a major Commission action 
significantly affecting the quality of the human environment and 
instruct staff to prepare an EIS.
---------------------------------------------------------------------------

    Although 10 CFR part 51 is not required as a matter of 
compatibility for Agreement States, several Agreement States have State 
environmental requirements that are similar to the requirements in the 
National Environmental Policy Act (NEPA). A fusion machine licensed in 
an Agreement State would be required to comply with the State's 
applicable environmental requirements.
    An applicant for a license to possess, use, and produce byproduct 
material associated with a fusion machine may apply the guidance in 
NUREG-1748, ``Environmental Review Guidance for Licensing Actions 
Associated with NMSS Programs,'' in preparing their environmental-
related submittals to the NRC whether to support an EIS, EA, or a 
categorical exclusion. Under Sec.  51.40, a prospective applicant to 
possess, use, and produce byproduct material associated with a fusion 
machine is encouraged to confer with the NRC staff to discuss the 
guidance in NUREG-1748 as early as possible in its planning process 
before submitting environmental information or filing an environmental 
report.
6. Export Controls
    This rule does not propose any changes to export controls related 
to fusion machines because a comprehensive export control framework for 
fusion machines currently exists, and this framework is consistent with 
international policy, obligations, and commitments, as well as U.S. law 
and regulations. Different U.S. Government departments and agencies 
have export control jurisdiction over nuclear-related technology, 
equipment, and materials depending on the commodity to be exported. 
Generally, the NRC controls the export of equipment, components, and 
material that require the application of safeguards by the 
International Atomic Energy Agency (IAEA). Nuclear-related items that 
do not require IAEA safeguards are generally controlled by the 
Department of Commerce (DOC). Since fusion machines do not use or 
produce nuclear material, they do not require the application of IAEA 
safeguards. Accordingly, the DOC, rather than the NRC, currently 
controls the export of fusion machines. There is precedent for DOC 
export control over fusion machines as well. As a participant in the 
International Thermonuclear Experimental Reactor (ITER) fusion project 
in France, the United States has already exported fusion equipment and 
components to the ITER facility under DOC export authority.
    This export control framework is also consistent with international 
frameworks and commitments. As a member of the Nuclear Suppliers Group 
(NSG), the United States has made a commitment to implement the NSG's 
export control guidelines. Part 1 of the NSG Guidelines (INFCIRC/254/
Part 1) contains a list of items that should be controlled for export 
because they would require IAEA safeguards, and it explicitly excludes 
``fusion reactors'' from the scope of control. The United States also 
has adopted the ``Model Protocol Additional to the Agreement(s) Between 
State(s) and the International Atomic Energy Agency for the Application 
of Safeguards'' (INFCIRC/540 (Corrected)), known as the Additional 
Protocol (AP). Annex II of the AP contains a list of equipment and non-
nuclear material that must be reported when exported or imported. This 
list likewise excludes fusion machines from its scope, since they would 
not be subject to IAEA safeguards.
    The NRC's export control authority is not limited by the NSG 
Guidelines or the AP. If the NRC were to exert export control over 
fusion machines, its authority would stem from section 109b of the AEA. 
However, because section 109b requires that IAEA safeguards be applied 
to the exported item, exerting NRC export control authority over fusion 
machines under section 109b would not be consistent with the 
established international export control and IAEA safeguards framework.
    Consideration was also given to export control of non-nuclear 
materials that could be used or produced by fusion machines. Tritium, 
which could have end uses related to nuclear weaponization, could 
reasonably be used and produced in significant quantities by a fusion 
machine. While tritium is not subject to IAEA safeguards, the NRC 
controls tritium and other byproduct material for export under its AEA 
section 82 authority rather than its AEA section 109b authority. 
Further, the DOC controls export of lithium-6 as well as lithium target 
assemblies, which could be used to produce tritium. The DOC also 
controls export of tritium production, recovery, extraction, and 
handling equipment. Additionally, export of deuterium for nuclear end 
use is controlled by the NRC, and deuterium for non-nuclear end use is 
controlled by DOC. In the event that the neutrons produced from a 
fusion machine are used to irradiate a subcritical assembly or blanket 
of nuclear material, then such use or production of nuclear material 
would automatically trigger IAEA safeguards, and the NRC would then 
control such nuclear material for export.
    In summary, the U.S. Government's existing, comprehensive export 
control framework for fusion machines is consistent with, and based 
upon, international export control frameworks. If the United States, in 
conjunction with the international export control community, as well as 
the IAEA, determine that fusion machines may warrant additional export 
controls and safeguards, then the U.S. Government can evaluate and 
adjust its national framework at that time, including whether the NRC 
should exert export authority over fusion machines.
7. Physical Security and Accountability of Licensed Material
    In accordance with Sec.  20.1801 and Sec.  20.1802, licensees must 
ensure the security and accountability of licensed material. Therefore, 
all byproduct material that is used, produced, and

[[Page 9485]]

stored as part of fusion machine activities must be protected. In 
addition to the security requirements in 10 CFR part 20, 10 CFR part 37 
requires additional security measures for specific types of byproduct 
material considered to be risk significant and meet the category 1 and 
category 2 quantity thresholds identified in appendix A to 10 CFR part 
37.
    Tritium used, produced, and stored as part of fusion machine 
activities is not considered a risk-significant radionuclide. However, 
there could be activation products not listed in appendix A to 10 CFR 
part 37 that are produced from fusion machines that require 
implementation of additional security measures, beyond those required 
by 10 CFR part 20. Currently, not enough information is available to 
determine the activation products that may be produced by near-term 
fusion machines. For radionuclides not listed in table 1 of appendix A 
to 10 CFR part 37, the NRC will determine on a case-by-case basis 
whether additional security requirements are warranted (e.g., based on 
the use of structural materials that create new radionuclides of 
concern through activation). The NRC would address the issue through 
license conditions or orders.
    Guidance regarding security measures that can be used to protect 
byproduct material that will be produced, used, and stored as part of 
fusion machine activities is provided in draft Volume 22 of NUREG-1556.
8. Waste Management
    The NRC's regulations governing waste management requirements under 
10 CFR part 20 are proposed to be amended to apply specifically to 
fusion machine facilities and their expected associated radioactive 
waste. The scope of this discussion includes aspects of 10 CFR part 20 
and 10 CFR part 61 related to the handling and disposal of radioactive 
waste generated by fusion machines. The NRC determined that fusion 
machine waste is adequately addressed by the existing regulations 
related to land disposal of radioactive waste (i.e., 10 CFR part 61) 
with a proposed change to 10 CFR part 20.
    The Energy Policy Act of 2005 adopted on August 8, 2005, expanded 
NRC jurisdiction to include certain materials made radioactive by a 
particle accelerator. The NRC's 2007 final rule made conforming changes 
to Sec.  20.2008(a), providing disposal requirements for byproduct 
material as defined in sections 11e.(3) and (4) of the AEA. Further, 
the definition of waste in Sec.  61.2, which excludes material produced 
by an accelerator, does not prevent disposal of accelerator-produced 
waste with LLW. The ADVANCE Act of 2024 amended section 11e.(3) of the 
AEA to ensure all radioactive material generated by fusion machines is 
defined as byproduct material. Therefore, the NRC determined that the 
existing NRC regulations under 10 CFR part 61 for land disposal of 
radioactive waste could apply to waste generated by fusion machines.
    Similarly, Sec.  20.2008(b) states that accelerator waste can be 
disposed of at a Federal or State solid or hazardous waste disposal 
facility authorized to dispose of such material. In general, the NRC 
evaluates whether NRC-licensed material can be sent to a solid or 
hazardous waste disposal facility for disposal on a case-by-case basis 
under Sec.  20.2002, ``Method for obtaining approval of proposed 
disposal procedures.'' For either disposal with LLW or disposal under 
Sec.  20.2002, existing NRC regulations allow NRC-licensed, 
accelerator-produced material to be sent for disposal with other types 
of waste if additional applicable requirements are met. Those 
requirements may include approvals from State and other Federal 
agencies.
    Several stakeholders have expressed concern that the Sec.  61.55 
waste classification tables may fail to address risk-significant 
radionuclides in fusion machine waste because those tables were based 
on expected waste streams in the early 1980s. The Advisory Committee on 
Reactor Safety (ACRS) proposed, in its letter dated October 21, 2022, 
that the NRC consider revising the Sec.  61.55 waste classification 
tables to address radionuclides generated by fusion machines. Based on 
stakeholder feedback, the NRC understands that fusion machines could 
create significant inventories of activation products \22\ that are not 
included in the waste classification tables (e.g., see SECY-23-0001). 
However, this rule does not propose to revise those tables because 
sufficient information is not yet available to determine which 
radionuclides will drive the risk significance of fusion machine 
generated waste. As described by the ACRS, the activation products 
formed by fusion machines will depend on the structural materials used 
in the systems and their impurities. Because many of those materials 
have not yet been selected or developed, the identity, quantities, and 
concentrations of the potential activation products in those materials 
are not yet known. In a staff requirements memorandum (SRM) responding 
to the NRC staff's plan to revise 10 CFR part 61 (SRM-SECY-08-0147), 
the Commission directed the NRC staff to consider changing the waste 
classification tables after the completion of the integrated low-level 
radioactive waste disposal rulemaking for 10 CFR part 61. The NRC staff 
plans to consider the radionuclides in fusion machine waste during that 
process. In addition, the NRC is proposing a change to 10 CFR part 20 
that would address issues related to the Sec.  61.55 waste 
classification tables with a requirement for site-specific analyses in 
some circumstances, as described below.
---------------------------------------------------------------------------

    \22\ Many stakeholders, including the ACRS, expect fusion 
machines to generate significant quantities of tritium-contaminated 
waste in addition to activation products. Class A tritium is 
addressed in the existing Sec.  61.55 waste classification tables. 
The NRC addresses tritium disposed with Class B waste in guidance 
accompanying the proposed rule. There is no concentration limit for 
tritium in Class C waste because the calculated value exceeds the 
specific activity of tritium.
---------------------------------------------------------------------------

    A key safety concern associated with land disposal of waste from 
fusion machines is the protection of individuals who might 
inadvertently intrude into LLW. This protection is typically 
demonstrated by compliance with technical requirements that are based 
in part on LLW classification. Therefore, to ensure intruder protection 
at this time, the NRC proposes to require that licensees with novel 
wastes or radionuclide concentrations from fusion machines use disposal 
sites that have completed a site-specific intrusion assessment for such 
waste material. The NRC proposes to allow disposal of novel waste types 
without a site-specific intrusion assessment for waste with physical, 
chemical, and radiological characteristics that can be shown to be 
consistent with an appropriate waste classification description in 
Sec.  61.7, ``Concepts.''
    Specifically, the NRC proposes to amend Sec.  20.2008 to add new 
language to paragraph (a). The new text would require that fusion 
machine waste that would be disposed of as low-level waste under 10 CFR 
part 61 either be accompanied by an analysis showing the waste is 
manifested and labeled for disposal consistent with the description of 
the applicable waste class in Sec.  61.7 or be disposed of at a 
disposal site that has completed a site-specific intrusion assessment. 
Draft NUREG-1556, Volume 22, includes guidance on waste types and 
radionuclide concentrations the NRC staff has previously analyzed under 
the waste classification descriptions in Sec.  61.7. If a site-specific 
intrusion assessment will be relied on, the assessment should 
demonstrate the projected dose to an individual who inadvertently 
intrudes into the waste at the facility will not exceed 0.5 rem (5

[[Page 9486]]

mSv) per year. That dose limit is consistent with the dose limit used 
to develop the LLW classification tables in 10 CFR part 61, which the 
NRC selected based on safety, costs, disposal efficiency, and the 
potential for increased disposal of waste containing long-lived 
radionuclides that could increase the hazard for long time periods (see 
NUREG-0945).
9. Reporting and Recordkeeping
    The NRC is proposing to amend its regulations governing the 
reporting and recordkeeping requirements under Sec.  30.51 to cover 
licensees authorized for the possession, use, and production of 
byproduct material associated with fusion machines by adding 
``production of'' tritium and activation products for the necessary 
reports, analyses, submittals, inspection documentation, and other 
required documentation for a fusion machine. The draft guidance in 
NUREG-1556, Volume 22, provides additional discussion on 
accountability, including inventory, production, use, decay, and 
consumption of radioactive material. The draft guidance emphasizes the 
importance of confirming the accuracy and reliability of the facility's 
accounting records, particularly for the detection of any unmeasured 
material losses or diversion or theft of radioactive materials. 
Licensees are already required to have records for what they possess 
including what they produce and therefore it is not expected to change 
the record retention at other stakeholder facilities.

C. Implementation Guidance

    The NRC has developed a new draft volume under the NUREG-1556 
series to address possession, use, and production of byproduct material 
in a fusion machine. NUREG-1556, Volume 22, ``Consolidated Guidance 
About Materials Licenses: Program-Specific Guidance About Possession 
Licenses for Fusion Machines,'' would provide guidance on preparing a 
license application for the radioactive byproduct materials associated 
with the use of a fusion machine. This draft guidance document also 
includes criteria the NRC would use in evaluating license applications 
for the possession, use, and production of byproduct material 
associated with fusion machines.
    NUREG-1556, Volume 22, would provide guidance related to each of 
the topics an applicant should address in its materials license 
application. These topics would include radioactive material that will 
be used and produced and its purpose; information on individuals 
responsible for the radiation safety program; training for individuals 
that will handle radioactive material; description of the facilities 
and equipment used; and the radiation safety program. This guidance 
document would be applied to a wide variety of near-term fusion machine 
design applications and would contain information about how licensees 
may choose to implement their programs to meet NRC regulatory 
requirements. The information in this guidance document would not be 
intended to impose any conditions beyond those required by regulations 
nor will all items discussed in this guidance document apply to every 
applicant.
    There are some unique aspects of handling radioactive materials 
involved in or produced by a fusion machine that are discussed in this 
draft guidance document. For example, there is draft guidance on 
training and experience for individuals who will handle radioactive 
material during the maintenance and repair of the fusion machine, draft 
guidance on security and emergency procedures, and draft guidance on 
facility design and type of equipment needed to store and handle large 
quantities and activities of radioactive materials.
    On March 7, 2024, the NRC staff issued a preliminary draft of this 
guidance document and discussed it during a March 18, 2024, public 
meeting. Information on how to access the meeting summary, preliminary 
draft guidance document, and the draft guidance are available in the 
NRC's Agencywide Documents Access and Management System (ADAMS), as 
provided in the ``Availability of Documents'' section of this document.

IV. Specific Requests for Comment

    The NRC is seeking advice and recommendations from the public on 
this proposed rule. We seek comment on all aspects of this proposed 
rule. NRC requests comment on the assumptions regarding the costs, 
benefits, and cost savings of this rule. NRC acknowledges that other 
ongoing rulemaking efforts may impact similar regulated entities and 
solicits comments on the cumulative regulatory burden of rules 
affecting these entities. We solicit comments on potential impacts, if 
any, on U.S. manufacturing and supply chains including the production 
of advanced nuclear fuel, the current commercial nuclear reactor fleet; 
national security, critical infrastructure for national defense, 
nuclear energy dominance, and American competitiveness abroad. We are 
particularly interested in comments and supporting rationale from the 
public on the following:
    (1) Section 30.55(c) requires licensees who are authorized to 
possess tritium to report to the NRC any incident in which an attempt 
has been made or is believed to have been made to commit a theft or 
unlawful diversion of more than 10 curies of such material at any one 
time or more than 100 curies of such material in any one calendar year. 
This requirement was originally promulgated by the Atomic Energy 
Commission (AEC) in the early 1970s as part of a set of requirements 
that in the interest of national security, provide the AEC information 
within reasonable limits and on a current basis as to the flow of 
tritium into, out of, and within the country, and inventory quantities 
at various locations (36 FR 16593, August 24, 1971).
    In addition to the reporting requirement in Sec.  30.55(c), Sec.  
20.2201 requires reports when it becomes known to a licensee that 
certain quantities of tritium (and other materials listed in appendix C 
to 10 CFR part 20) have been lost or stolen or are otherwise missing. 
Under Sec.  20.2201, licensees must immediately report an occurrence of 
lost, stolen, or missing tritium in aggregate quantities equal to or 
greater than 1 curie after it becomes known to the licensee and if it 
appears to the licensee that an exposure to persons in unrestricted 
areas could occur. Licensees are also required to report if more than 
10 millicuries of tritium are still missing within 30 days after an 
occurrence of lost, stolen, or missing quantities of tritium greater 
than 10 millicuries becomes known to the licensee. These reporting 
requirements apply only when a licensee believes or has knowledge that 
a theft or attempted theft has occurred or that tritium is missing.
    Based on information provided by fusion industry stakeholders, 
including fusion machine developers and the DOE, the quantities of 
tritium used and produced at near-term commercial fusion machines could 
exceed 100 grams, which is approximately 1 million curies. Accurately 
accounting for the location of all tritium in a fusion machine will be 
difficult due to various factors including absorption of tritium into 
components, tritium produced in the breeder blankets, losses of tritium 
during the fusion reaction, and the difficulty in measuring tritium 
inside the components of a fusion machine.
    The NRC recognizes that due to the physical and chemical properties 
of tritium, there can be difficulties in tracking its location within a 
fusion machine, and licensees may not be able

[[Page 9487]]

to rely on tritium inventory monitoring to discover all losses. One 
Agreement State has issued an exemption to its licensee regarding the 
State's equivalent of Sec.  20.2201 to raise the tritium threshold due 
to a licensee's inability to account for tritium at the millicurie and 
low curie levels.
    Specific request for comment: Should the NRC revise Sec.  30.55(c) 
and Sec.  20.2201 to change the reporting threshold to a higher 
activity for tritium? If so, what should be the new reporting threshold 
for tritium? Please provide the basis for your response.
    (2) The NRC staff proposes to amend paragraph (a) of 10 CFR 
20.2008, ``Disposal of certain byproduct material,'' to require either 
(1) an analysis showing that the waste is manifested and labeled for 
disposal consistent with the description of the applicable waste 
classification in Sec.  61.7, ``Concepts,'' based on the physical, 
chemical, and radiological characteristics of the waste, or (2) that 
the waste be disposed of in a facility that has completed a site-
specific intrusion assessment. The NRC's view is these revisions would 
allow safe disposal of novel waste types from fusion machines.
    Specific request for comment: The NRC is particularly interested in 
feedback on this proposed approach to amend 10 CFR 20.2008 to provide 
options for safe waste disposal. Does this approach comprehensively 
address potential waste generated by fusion machines? Are there other 
approaches the NRC should consider? If yes, please provide the basis 
for your response.
    (3) In addition, the NRC is interested in the need to develop more 
specific guidance to address disposal of large volumes of low-activity 
fusion waste.
    Specific request for comment: What would the benefits be of 
expanding existing guidance for alternative disposal under 10 CFR 
20.2002, ``Method for obtaining approval of proposed disposal 
procedures,'' to specifically address fusion machine waste? Should the 
NRC develop guidance focused on reusing or recycling low-activity 
fusion machine waste? Are there alternative approaches the NRC should 
consider? Please provide the basis for your response.
    (4) This rule does not propose any changes to export controls 
related to fusion machines because a comprehensive export control 
framework for fusion machines currently exists, and this framework is 
consistent with international policy, obligations, and commitments, as 
well as U.S. law and regulations. However, the NRC is interested in 
ensuring that the proposed rule provides clarity on the export 
controls.
    Specific request for comment: Should the NRC propose export 
controls related to fusion machines? Please provide the basis for your 
response.
    (5) The NRC is interested in ensuring that the proposed rule 
provides clarity on the licensing process for both the applicants and 
Agreement States.
    Specific request for comment: Does the proposed rule provide 
adequate clarity on the licensing process, including designated 
Compatibility Categories, and if not, where is additional clarity 
needed? Please provide the basis for your response.
    (6) Lastly, the NRC is interested in the unintended consequences or 
impacts of changes to the ``particle accelerator'' definition. Some 
Agreement States have definitions for particle accelerators that are 
different from the NRC definition. Agreement States that have licensed 
existing fusion machines have done so under their particle accelerator 
regulatory frameworks. The NRC is also interested in the unintended 
consequences or impacts of the proposed compatibility designations for 
``byproduct material'' and ``fusion machine'' definitions. The NRC is 
proposing a compatibility designation of ``B'' for the ``fusion 
machine'' definition and paragraph 3(ii)(A) of the ``byproduct 
material'' definition. Currently, the definition for ``byproduct 
material'' and ``particle accelerator'' are compatibility designation 
health and safety (H&S).
    Specific request for comment: Are there unintended consequences or 
impacts not considered by the NRC by including fusion machines in the 
definition of ``particle accelerator''? Are there unintended 
consequences or impacts not considered by the NRC with respect to the 
proposed compatibility designations of the ``fusion machine'' and 
paragraph 3(ii)(A) of the ``byproduct material'' definitions? Please 
provide a basis for your response.

V. Section-by-Section Analysis

    The following paragraphs describe the specific changes proposed by 
this rulemaking.

Section 20.1003 Definitions

    This proposed rule adds a definition for Fusion machine. This 
proposed rule also revises the definitions for Byproduct material and 
Particle accelerator.

Section 20.1009 Information Collection Requirements: OMB Approval

    In Sec.  20.1009, this proposed rule revises paragraph (b) to add 
Sec.  20.2008 to the list of approved information collection 
requirements contained in 10 CFR part 20.

Section 20.2008 Disposal of Certain Byproduct Material

    This proposed rule adds new requirements to paragraph (a) for 
disposal of certain fusion machine waste under the regulations of part 
61 of this chapter.

Section 30.4 Definitions

    This proposed rule adds a definition for Fusion machine. This 
proposed rule also revises the definitions for Byproduct material and 
Particle accelerator.

Section 30.32 Application for Specific Licenses

    This proposed rule adds new paragraph (k), which describes required 
content specific to a license application for a possession, use, and 
production of byproduct material associated with a fusion machine. This 
new section is not intended to address the licensing of a standard 
fusion machine design or the approval of mass production of fusion 
machines.

Section 30.33 General Requirements for Issuance of Specific Licenses

    This proposed rule adds new paragraph (a)(6) for the issuance of a 
license to possess, use, and produce byproduct material associated with 
a fusion machine when all requirements for the license in 10 CFR part 
30 are met.

Section 30.51 Records

    This proposed rule amends paragraphs (a) and (a)(1) to include the 
production of byproduct material.

Section 30.52 Inspections

    This proposed rule amends paragraph (a) to include the production 
of byproduct material.

Section 37.5 Definitions

    This proposed rule revises the definition for Byproduct material.

Section 50.2 Definitions

    This proposed rule revises the definition for Byproduct material.

Section 51.60 Environmental Report--Materials Licenses

    This proposed rule adds new paragraph (b)(1)(viii) to require that 
an environmental report be prepared for the construction and operation 
of a fusion machine.

[[Page 9488]]

Section 72.3 Definitions

    This proposed rule revises the definition for Byproduct material.

Section 110.2 Definitions

    This proposed rule revises the definitions for Byproduct material 
and Particle accelerator.

Section 150.3 Definitions

    This proposed rule revises the definition for Byproduct material.

Section 170.3 Definitions

    This proposed rule revises the definition for Byproduct material.

Section 171.5 Definitions

    This proposed rule revises the definition for Byproduct material.

VI. Regulatory Flexibility Certification

    As required by the Regulatory Flexibility Act of 1980, 5 U.S.C. 
605(b), the Commission certifies that this rule, if adopted, will not 
have a significant economic impact on a substantial number of small 
entities.
    The structure of the industries that would form to use the emerging 
fusions machine technologies is uncertain. The most significant 
potential sector that could use fusion machines is the electric power 
sector. Among electric utilities that might operate a fusion machine, 
90 percent have revenues between $7.8 million and $1.2 billion (EIA, 
2022). Thus, for 95 percent of electric utilities, the cost impact of 
the proposed rule would be a benefit of less than 0.6 percent. Note 
that larger utilities would be more likely to have an economy of scale 
that could benefit from fusion machines in their power supply mix. An 
electric utility that might be classified as a small entity would be 
less likely to be able to afford to invest in fusion technology. 
Therefore, the NRC estimates that the proposed rulemaking will not have 
a significant economic impact on a substantial number of small 
entities.
    As for any entity building or operating fusion machines, the 
proposed rule reduces the regulatory impact of obtaining the materials 
licenses required for fusion machines, for small entities also, by 
clarifying the application of existing requirements to fusion machines. 
This clarity might be more useful to small entities to the extent that 
the smaller organizations have fewer resources available for 
interpreting less clear regulatory language.
    NRC requests all comments from potentially impacted small entities. 
Any small entity subject to this regulation that determines, because of 
its size, it is likely to bear a disproportionate adverse economic 
impact should notify the Commission of this opinion in a comment that 
indicates--
    (a) The licensee's size and how the proposed regulation would 
impose a significant economic burden on the licensee as compared to the 
economic burden on a larger licensee;
    (b) How the proposed regulations could be modified to take into 
account the licensee's differing needs or capabilities;
    (c) The benefits that would accrue or the detriments that would be 
avoided if the proposed regulations were modified as suggested by the 
licensee;
    (d) How the proposed regulation, as modified, would more closely 
equalize the impact of NRC regulations or create more equal access to 
the benefits of Federal programs as opposed to providing special 
advantages to any individual or group; and
    (e) How the proposed regulation, as modified, would still 
adequately protect public health and safety.
    Comments should be submitted as indicated under the ADDRESSES 
caption of this document.

VII. Regulatory Analysis

    The NRC has prepared a draft regulatory analysis on this proposed 
regulation. The analysis examines the costs and benefits of the 
alternatives considered by the NRC. The NRC requests public comment on 
all aspects of the draft regulatory analysis. The regulatory analysis 
is available as indicated in the ``Availability of Documents'' section 
of this document. Comments on the draft analysis may be submitted to 
the NRC as indicated under the ADDRESSES caption of this document.

VIII. Cumulative Effects of Regulation

    The NRC seeks to minimize any potential negative consequences 
resulting from the cumulative effects of regulation (CER). The CER 
refers to the challenges that licensees, or other impacted entities 
such as State partners, may face while implementing new regulatory 
positions, programs, or requirements (e.g., rules, generic letters, 
backfits, inspections). The CER is an organizational effectiveness 
challenge that may result from a licensee or impacted entity 
implementing a number of complex regulatory actions, programs, or 
requirements with limited available resources.
    The NRC is following its CER process by engaging with external 
stakeholders throughout this proposed rule and related regulatory 
activities. Opportunity for public comment is provided to the public at 
this proposed rule stage.
    To better understand the potential CER implications incurred due to 
this proposed rule, the NRC is requesting comment on the following 
questions. Responding to these questions is voluntary, and the NRC will 
respond to any comments received in the final rule.
    1. In light of any current or projected CER challenges, would the 
proposed effective date of 30 days after the date of publication of a 
final rule provide sufficient time to implement the new, proposed 
requirements? Please provide a rationale for your response.
    2. If CER challenges currently exist or are expected, what should 
be done to address them? For example, if more time is required for 
implementation of the new requirements, what period of time is 
sufficient? Please provide a rationale for your response.
    3. What other (NRC or other agency) regulatory actions (e.g., 
orders, generic communications, license amendment requests, inspection 
findings of a generic nature) influence the implementation of this 
proposed rule's requirements? Please provide a rationale for your 
response.
    4. What are the unintended consequences, and how should they be 
addressed? Does this proposed rule create conditions that would be 
contrary to this proposed rule's purpose and objectives? Please provide 
a rationale for your response.
    5. Please comment on the NRC's cost and benefit estimates in the 
regulatory analysis that supports this proposed rule.

IX. Plain Writing

    The Plain Writing Act of 2010 (Pub. L. 111-274) requires Federal 
agencies to write documents in a clear, concise, and well-organized 
manner. The NRC has written 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). The NRC requests comment on this document with respect to the 
clarity and effectiveness of the language used.

X. Environmental Assessment and Proposed Finding of No Significant 
Environmental Impact

    The Commission has determined under the National Environmental 
Policy Act of 1969, as amended, and the Commission's regulations in 
Subpart A of 10 CFR part 51, that this rule, if adopted, would not be a 
major Federal action significantly affecting the quality of the human 
environment, and an EIS is not required. The implementation of

[[Page 9489]]

the proposed rule requirements would not have a significant impact on 
the environment. The proposed rule would either have requirements that 
are administrative in application or matters of procedure. The proposed 
rule would provide clarity on licensing and regulating the possession, 
use, and production of byproduct material associated with fusion 
machines but would not materially change any requirements and would not 
result in any new or different environmental impacts.
    The determination of this draft EA is that there would be no 
significant effect on the quality of the human environment from this 
action. Public stakeholders should note, however, that comments on any 
aspect of this draft EA may be submitted to the NRC as indicated under 
the ADDRESSES caption. The draft EA is available as indicated under the 
``Availability of Documents'' section of this document.

XI. Paperwork Reduction Act

    This proposed rule contains new or amended collections of 
information subject to the Paperwork Reduction Act of 1995 (44 U.S.C. 
3501 et seq.). This proposed rule has been submitted to the Office of 
Management and Budget for review and approval of the information 
collections.
    Type of submission: Revision.
    The title of the information collection: Regulatory Framework for 
Fusion Machines.
    The form number if applicable: NRC Form 313.
    How often the collection is required or requested: Once per event, 
on occasion, and annually.
    Who will be required or asked to respond: Applicants for a license 
to possess, use, and produce byproduct material associated with a 
fusion machine, licensees that possess, use, and produce byproduct 
material associated with a fusion machine, and low-level waste disposal 
facility licensees.
    An estimate of the number of annual responses: 3 (1 reporting 
response + 2 recordkeepers).
    The estimated number of annual respondents: 3.
    An estimate of the total number of hours needed annually to comply 
with the information collection requirement or request: 607 (600 
reporting + 7 recordkeeping).
    Abstract: The NRC is proposing to amend its regulations to 
establish a regulatory framework for the possession, use, and 
production of byproduct material associated with fusion machines. The 
proposed rule includes definitions to establish the scope of regulatory 
requirements for fusion machines and technology-inclusive, content-of-
application requirements supportive of a performance-based approach to 
regulation. The proposed rule includes specific requirements for 
submitting an application for a license to possess, use, and produce 
byproduct material associated with a fusion machine. Such applicants 
may file an application using NRC Form 313, ``Applications for 
Materials License.'' The proposed rule would add a requirement for an 
applicant to submit an environmental report for the construction and 
operation of a fusion machine unless a categorical exclusion applies. 
The proposed rule would require applicants or licensees to maintain 
records of production of tritium and activation products associated 
with fusion machines. The records and recordkeeping requirements would 
allow the NRC to determine if the applicant has training, experience, 
equipment, facilities, and procedures that provide reasonable assurance 
of adequate protection of public health and safety and the environment. 
The records and recordkeeping requirements associated with receipt, 
transfer, production, and disposal of byproduct material would be 
reviewed by the NRC to determine that licensees have confined their 
possession and use of byproduct material to the locations, purposes, 
receipt, and quantities authorized in their licenses.
    The proposed rule would require that radioactive waste resulting 
from fusion machines must either be accompanied by an analysis showing 
the waste is manifested and labeled for disposal consistent with the 
description of the applicable waste class in [10 CFR] 61.7 of this 
chapter, based on the physical, chemical, and radiological 
characteristics of the waste, or be disposed of in a disposal facility 
that has completed a site-specific intrusion assessment that 
demonstrates the projected dose to an individual who inadvertently 
intrudes into the waste at the facility will not exceed 0.5 rem (5 
(mSv)) per year. The information requested would allow the NRC to 
determine whether the proposed activities can be conducted safely 
without harming the common defense and security or constituting an 
unreasonable risk to public health and safety and the environment. The 
NRC is proposing to amend its regulations to establish a regulatory 
framework for licensing the possession, use, and production of 
byproduct material associated with fusion machines. The NRC is also 
proposing new guidance for the implementation of this proposed rule, 
entitled NUREG-1556, Volume 22, ``Consolidated Guidance About Materials 
Licenses: Program-Specific Guidance About Fusion Machine Licenses.''
    The NRC is seeking public comment on the potential impact of the 
information collections contained in this proposed rule and on the 
following issues:
    1. Is the proposed information collection necessary for the proper 
performance of the functions of the NRC, including whether the 
information will have practical utility? Please explain your response.
    2. Is the estimate of the burden of the proposed information 
collection accurate? Please explain your response.
    3. Is there a way to enhance the quality, utility, and clarity of 
the information to be collected? Please explain your response.
    4. How can the burden of the proposed information collection on 
respondents be minimized, including the use of automated collection 
techniques or other forms of information technology?
    A copy of the Office of Management and Budget (OMB) clearance 
package and proposed rule are available in the ``Availability of 
Documents'' section of this document or may be viewed free of charge by 
contacting the NRC's Public Document Room reference staff at 1-800-397-
4209, at 301-415-4737, or by email to [email protected]. You may 
obtain information and comment on submissions related to the OMB 
clearance package by searching on https://www.regulations.gov under 
Docket ID NRC-2023-0071.
    You may submit comments on any aspect of these proposed information 
collection(s), including suggestions for reducing the burden and on the 
above issues, by the following methods:
     Federal rulemaking website: Go to https://www.regulations.gov and search for Docket ID NRC-2023-0071.
     Mail comments to: FOIA, Library, and Information 
Collections Branch, Office of the Chief Information Officer, Mail Stop: 
T-6 A10M, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001 
or to the OMB reviewer at OMB Office of Information and Regulatory 
Affairs (3150-0014, 3150-0017, 3150-0021, and 3150-0120), Attention: 
Desk Officer for the Nuclear Regulatory Commission, 725 17th Street NW, 
Washington, DC 20503.
    Submit comments by March 30, 2026. Comments received after this 
date will be considered if it is practical to do so, but the NRC staff 
is able to ensure

[[Page 9490]]

consideration only for comments received on or before this date.

Public Protection Notification

    The NRC may not conduct or sponsor, and a person is not required to 
respond to, a collection of information unless the document requesting 
or requiring the collection displays a currently valid OMB control 
number.

XII. Executive Orders

Executive Order (E.O.) 12866

    The Office of Information and Regulatory Affairs (OIRA) has 
determined that this proposed rule is a significant regulatory action 
under E.O. 12866, ``Regulatory Planning and Review.'' Accordingly, NRC 
submitted this proposed rule to OIRA for review. NRC is required to 
conduct an economic analysis in accordance with section 6(a)(3)(B) of 
E.O. 12866. More can be found in Section VII, of this document, 
``Regulatory Analysis.''

Review Under E.O.s 14154, 14192, 14215, and 14300

    NRC has examined this proposed rule and has determined that it is 
consistent with the policies and directives outlined in E.O. 14154, 
``Unleashing American Energy,'' E.O. 14192, ``Unleashing Prosperity 
Through Deregulation,'' E.O. 14215 ``Ensuring Accountability for All 
Agencies,'' and E.O. 14300, ``Ordering the Reform of the Nuclear 
Regulatory Commission.'' This proposed rule is tentatively considered 
an E.O. 14192 deregulatory action. Details on the estimated costs of 
this proposed rule can be found in Section VII, of this document, 
``Regulatory Analysis.''

Review Under E.O. 14270

    Executive Order 14270, ``Zero-Based Regulatory Budgeting to Unleash 
American Energy,'' requires the NRC to insert a conditional sunset date 
into all new or amended NRC regulations provided the regulations are 
(1) promulgated under the Atomic Energy Act of 1954, as amended (AEA), 
the Energy Reorganization Act of 1974, as amended (ERA), and the 
Nuclear Waste Policy Act of 1982, as amended (NWPA); (2) not 
statutorily required; and (3) not part of the NRC's permitting regime. 
The NRC determined that the regulatory changes proposed in this rule 
are for augmenting the existing byproduct material framework to be 
inclusive of fusion machines. Therefore, the NRC views this rulemaking 
to be outside the scope of Executive Order 14270 and did not insert 
conditional sunset dates for the regulatory changes in this proposed 
rule.

XIII. Coordination With NRC Agreement States

    Thirty eight of the 39 Agreement States \23\ have assumed authority 
for 11e.(3) byproduct material. Consequently, these 38 Agreement States 
would have oversight of byproduct material associated with fusion 
machines licensed in their jurisdiction.
---------------------------------------------------------------------------

    \23\ The State of Wyoming's Agreement with the NRC is limited to 
the oversight of byproduct material from uranium milling and certain 
source material. Accordingly, a fusion machine in the State of 
Wyoming would be regulated by the NRC.
---------------------------------------------------------------------------

    The NRC has coordinated with the Agreement States throughout the 
development of this proposed rule. Agreement State representatives 
served on the rulemaking working group that developed this proposed 
rule and guidance and on the Standing Committee on Compatibility for 
the review of the rulemaking and the compatibility determinations. In 
addition, the NRC held a total of six government-to-government meetings 
with Agreement States during the development of this proposed rule.
    The NRC also provided a preliminary draft of this proposed rule and 
guidance to the Agreement States for formal review. The NRC held one of 
the government-to-government meetings with Agreement States during this 
formal review. The NRC received comments on the preliminary draft of 
the proposed rule from four Agreement States (New Jersey, New York, 
Tennessee, and Wisconsin) and the Organization of Agreement States 
Board. Regarding the draft guidance, the NRC received comments from 
four Agreement States (New Jersey, New York, Tennessee, and Wisconsin) 
and the Organization of Agreement States Board. The NRC considered 
these comments in the development of the proposed rule, which covered 
topics such as definitions, emergency plan, security, waste management, 
and other more general topics.

XIV. Compatibility of Agreement State Regulations

    Under the ``Agreement State Program Policy Statement'' approved by 
the Commission on October 2, 2017, and published in the Federal 
Register (82 FR 48535; October 18, 2017), NRC program elements 
(including regulations) required for adequacy and having a particular 
health and safety component are those that are designated as Categories 
A, B, C, D, NRC, and H&S: and those required for compatibility include 
those regulations and other legally binding requirements designated as 
Compatibility Categories A, B, C, and D. Compatibility Category A are 
those program elements that include basic radiation protection 
standards and scientific terms and definitions that are necessary to 
understand radiation protection concepts. An Agreement State should 
adopt Category A program elements in an essentially identical manner in 
order to provide uniformity in the regulation of agreement material on 
a nationwide basis. Compatibility Category B are those program elements 
that apply to activities that have direct and significant effects in 
multiple jurisdictions. Compatibility Category B pertains to a limited 
number of program elements that cross jurisdictional boundaries and 
should be addressed to ensure uniformity of regulation on a nationwide 
basis. The Agreement State program element should be essentially 
identical to that of NRC. Compatibility Category C are those program 
elements that do not meet the criteria of Category A or B, but the 
essential objectives of which an Agreement State should adopt to avoid 
conflict, duplication, gaps, or other conditions that would jeopardize 
an orderly pattern in the regulation of agreement material on a 
national basis. An Agreement State should adopt the essential 
objectives of the Category C program elements. Compatibility Category D 
are those program elements that do not meet any of the criteria of 
Category A, B, or C, above, and, thus, do not need to be adopted by 
Agreement States for purposes of compatibility. Compatibility Category 
NRC are those program elements that address areas of regulation that 
cannot be relinquished to the Agreement States under the AEA, or 
provisions of 10 CFR. These program elements should not be adopted by 
the Agreement States. Category H&S program elements are not required 
for purposes of compatibility; however, they do have particular health 
and safety significance. The Agreement State should adopt the essential 
objectives of such program elements to maintain an adequate program.
    This proposed rule is a matter of compatibility between the NRC and 
the Agreement States. The proposed compatibility categories are 
designated in the following table:

[[Page 9491]]



                                               Compatibility Table
----------------------------------------------------------------------------------------------------------------
                                                                                        Compatibility
            Section                      Change               Subject      -------------------------------------
                                                                                 Existing             New
----------------------------------------------------------------------------------------------------------------
20.1003........................  Amend................  Definitions         H&S..............  H&S
                                                         ``Byproduct
                                                         material''.
20.1003........................  Amend................  Definitions         H&S..............  B
                                                         ``Byproduct
                                                         material''
                                                         paragraph
                                                         3(ii)(A).
20.1003........................  New..................  Definitions         .................  B
                                                         ``Fusion
                                                         machine''.
20.1003........................  Amend................  Definitions         H&S..............  H&S
                                                         ``Particle
                                                         accelerator''.
20.1009........................  Amend................  Add ``20.2008'' to  D................  D
                                                         information
                                                         collections list.
20.2008........................  Amend................  Disposal of         B................  B
                                                         certain byproduct
                                                         material.
30.4...........................  Amend................  Definitions         H&S..............  H&S
                                                         ``Byproduct
                                                         material''.
30.4...........................  Amend................  Definitions         H&S..............  B
                                                         ``Byproduct
                                                         material''
                                                         paragraph
                                                         3(ii)(A).
30.4...........................  New..................  Definitions         .................  B
                                                         ``Fusion
                                                         machine''.
30.4...........................  Amend................  Definitions         H&S..............  H&S
                                                         ``Particle
                                                         accelerator''.
30.32(k), except (k)(2)(iv)....  New..................  Application for     .................  C
                                                         specific licenses.
30.32(k)(2)(iv)................  New..................  Application for     .................  D
                                                         specific licenses.
30.33(a)(6)....................  New..................  General             .................  D
                                                         requirements for
                                                         issuance of
                                                         specific licenses.
30.51(a) introductory text.....  Amend................  Records...........  C................  C
30.51(a)(1)....................  Amend................  Records...........  C................  C
30.52(a).......................  Amend................  Inspections.......  D................  D
37.5...........................  Amend................  Definitions         H&S..............  H&S
                                                         ``Byproduct
                                                         material''.
37.5...........................  Amend................  Definitions         H&S..............  B
                                                         ``Byproduct
                                                         material''
                                                         paragraph
                                                         3(ii)(A).
150.3..........................  Amend................  Definitions         H&S..............  H&S
                                                         ``Byproduct
                                                         material''.
150.3..........................  Amend................  Definitions         H&S..............  B
                                                         ``Byproduct
                                                         material''
                                                         paragraph
                                                         3(ii)(A).
----------------------------------------------------------------------------------------------------------------

    The Agreement States have licensed fusion research and development 
facilities operated by academic institutions and commercial companies 
using their existing authorities. Since the term ``fusion machine'' is 
a new definition, staff is proposing that the definition of fusion 
machine be Compatibility Category B to ensure consistency across the 
National Materials Programs. Accordingly, the staff is proposing that 
paragraph 3(ii)(A) of the definition of ``Byproduct material,'' which 
refers to ``fusion machine,'' is also Compatibility Category B. The new 
section on application for specific licenses is proposed to be 
Compatibility Category C, based on the need for Agreement States to 
have the flexibility to include other components that generate non-
ionizing radiation or other machine-produced radiation which the 
Agreement States may already regulate and would be integral parts of a 
fusion machine.
    With the exception of paragraph 3(ii)(A) of the definition of 
``Byproduct material,'' the amended definitions of byproduct material 
and particle accelerator would continue to be Category H&S. The 
definition of byproduct material was expanded by the Energy Policy Act 
of 2005 to incorporate certain discrete sources of radium-226 and 
certain accelerator-produced radioactive material. NRC amended its 
regulations in 2007 (72 FR 55864, October 1, 2007) to revise the 
definition of byproduct material and add the new definitions of 
discrete source and particle accelerator. All three of these 
definitions were designed as Category H&S. Particle accelerator was 
designated as H&S to provide the Agreement States flexibility to meet 
the essential objectives of the definition since several Agreement 
States already had regulations in place for particle accelerators and 
the naturally occurring and accelerator-produced radioactive material 
(NARM) they produced. Byproduct material was also designated as H&S to 
provide the Agreement States flexibility to meet the essential 
objectives of the definition since several Agreement States already 
incorporated NARM into the statutory definition or radioactive 
material.

XV. Availability of Guidance

    The NRC is issuing new draft guidance, NUREG-1556, Volume 22, 
``Consolidated Guidance About Materials Licenses: Program-Specific 
Guidance About Fusion Machine Licenses,'' for the implementation of the 
proposed requirements in this rulemaking for comment. This draft 
guidance is available in ADAMS under Accession No. ML24092A377. You may 
obtain information and submit comments related to the draft guidance by 
searching on https://www.regulations.gov under Docket ID NRC-2023-0071.
    Draft NUREG-1556, Volume 22, provides guidance to applicants and 
licensees for the possession, use, and production of byproduct material 
associated with fusion machines concerning the contents of a licensing 
application necessary to comply with the licensing requirements under 
part 30 of this chapter. You may submit comments on this draft 
regulatory guidance by the methods outlined in the ADDRESSES section of 
this document.

XVI. Public Meeting

    The NRC will conduct at least one public meeting on this proposed 
rule for the purpose of describing this proposed rule to the public and 
answering questions from the public on this proposed rule.
    The NRC will publish a notice of the location, time, and agenda of 
the meeting(s) in the Federal Register, on Regulations.gov, and on the 
NRC's public meeting website within at least 10 calendar days before 
the meeting. Stakeholders should monitor the NRC's public meeting 
website for information about the public meeting at https://www.nrc.gov/public-involve/public-meetings/index.cfm.

XVII. Availability of Documents

    The documents identified in the following table are available to 
interested persons through one or more of the following methods, as 
indicated.

[[Page 9492]]



------------------------------------------------------------------------
                                           ADAMS Accession No./web link/
                Document                     Federal Register citation
------------------------------------------------------------------------
SECY-24-0085, Proposed Rule--Regulatory   ML24019A064.
 Framework for Fusion Machines, December
 11, 2024.
Draft Environmental Assessment, February  ML25168A335.
 2026.
Draft Regulatory Analysis, February 2026  ML25168A339.
Draft NUREG-1556, Volume 22,              ML24092A377.
 ``Consolidated Guidance About Materials
 Licenses: Program-Specific Guidance
 About Possession Licenses for Fusion
 Machines,'' February 2026.
Office of Management and Budget (OMB)     ML24183A213.
 Supporting Statement, Proposed Rule--
 Form 313, February 2026.
OMB Supporting Statement, Proposed Rule-- ML24019A080.
 10 CFR part 20, February 2026.
OMB Supporting Statement, Proposed Rule-- ML24019A081.
 10 CFR part 30, February 2026.
OMB Supporting Statement, Proposed Rule-- ML24019A082.
 10 CFR part 51, February 2026.
SECY-24-0045, ``Proposed Rule:            ML23242A249.
 Integrated Low Level Radioactive Waste
 Disposal,'' May 29, 2024.
SRM-SECY-23-0001, ``Staff Requirements--  ML23103A449.
 SECY-23-0001--Options for Licensing and
 Regulating Fusion Energy Systems,''
 April 13, 2023.
SECY-23-0001, ``Options for Licensing     ML22273A163 (paper).
 and Regulating Fusion Energy Systems,''  ML22273A178 (package).
 January 3, 2023 [Rulemaking Plan].
SRM-SECY-20-0032, ``Staff Requirements--  ML20276A293.
 SECY-20-0032--Rulemaking Plan on `Risk-
 Informed, Technology-Inclusive
 Regulatory Framework for Advanced
 Reactors (RIN-3150-AK31; NRC-2019-
 0062),' '' October 2, 2020.
SRM-SECY-09-0064, ``Staff Requirements--  ML092230198.
 SECY-09-0064--Regulation of Fusion-
 Based Power Generation Devices,'' July
 16, 2009.
SRM-SECY-08-0147, ``Staff Requirements--  ML090770988.
 SECY-08-0147--Response to Commission
 Order CLI-05-20 Regarding Depleted
 Uranium,'' March 18, 2009.
Preliminary Proposed Rule Language,       ML23258A145.
 ``Fusion Systems Proposed Rule,''
 October 11, 2023.
Preliminary Draft NUREG-1556, Volume 22,  ML24067A227.
 ``Consolidated Guidance About Materials
 Licenses: Program-Specific Guidance
 About Possession Licenses for Fusion
 Systems,'' March 7, 2024.
NUREG-0945, ``Final Environmental Impact  https://www.nrc.gov/reading-rm/
 Statement on 10 CFR Part 61 Licensing     doc-collections/nuregs/staff/
 Requirements for Land Disposal of         sr0945/index.html.
 Radioactive Waste,'' November 1982.
NUREG-1556, Volumes 1-21, ``Consolidated  https://www.nrc.gov/reading-rm/
 Guidance About Materials Licenses''.      doc-collections/nuregs/staff/
                                           sr1556/index.html.
NUREG-1748, ``Environmental Review        ML032450279.
 Guidance for Licensing Actions
 Associated with NMSS Programs,'' August
 2003.
NUREG-1757, Volumes 1-3, ``Consolidated   https://www.nrc.gov/reading-rm/
 Decommissioning Guidance''.               doc-collections/nuregs/staff/
                                           sr1757/index.html.
July 12, 2023, Public Meeting Summary--   ML23191A156.
 Fusion System Proposed Rule.
October 11, 2023, Public Meeting          ML23258A146.
 Summary--Fusion System Proposed Rule.
November 1, 2023, Public Meeting          ML23258A169.
 Summary--Fusion System Proposed Rule.
November 9, 2023, Public Meeting          ML23258A182.
 Summary--Fusion System Proposed Rule.
January 17, 2024, Public Meeting          ML23355A142.
 Summary--Fusion System Proposed Rule.
March 18, 2024, Public Meeting Summary--  ML24067A237.
 Fusion System Proposed Rule.
August 14, 2024, Public Meeting Summary-- ML24207A028.
 Fusion Machine Proposed Rule.
Memo to Commission from M. Doane, EDO,    ML20288A251.
 RE: Response to Staff requirements--
 SECY-20-0032--``Rulemaking Plan on Risk-
 Informed, Technology-Inclusive
 Regulatory Framework for Advanced
 Reactors,'' November 2, 2020.
ACRS Letter--Draft SECY White Paper on    ML22290A177.
 Licensing and Regulating Fusion Energy
 Systems October 5-7, 2022, Full
 Committee, October 21, 2022.
Executive Order 12866, ``Regulatory       58 FR 51735.
 Planning and Review,'' October 4, 1993.
Executive Order 14154, ``Unleashing       90 FR 8353.
 American Energy,'' January 29, 2025.
Executive Order 14192, ``Unleashing       90 FR 9065.
 Prosperity Through Deregulation,''
 February 6, 2025.
Executive Order 14215, ``Ensuring         90 FR 10447.
 Accountability for All Agencies,''
 February 24, 2025.
Executive Order 14270, ``Zero-Based       90 FR 15643.
 Regulatory Budgeting to Unleash
 American Energy,'' April 15, 2025.
Executive Order 14300, ``Ordering the     90 FR 22587.
 Reform of the Nuclear Regulatory
 Commission,'' May 29, 2025.
Final Rule, Requirements for Expanded     72 FR 55864.
 Definition of Byproduct Material,
 October 1, 2007.
Final Rule, Licensing Requirements for    47 FR 57466.
 Land Disposal of Radioactive Waste,
 December 27, 1982.
Proposed Rule, Reporting and Control      36 FR 16593.
 Requirement for Tritium, August 24,
 1971 [issued by the Atomic Energy
 Commission].
Presidential Memorandum, ``Plain          63 FR 31885.
 Language in Government Writing,'' June
 10, 1998.
Agreement State Program Policy            82 FR 48535.
 Statement, October 18, 2017.
Atomic Energy Act of 1954, as amended...  https://www.nrc.gov/about-nrc/governing-laws.html.
Nuclear Energy Innovation and             https://www.govinfo.gov/app/
 Modernization Act (NEIMA; Pub. L. 115     details/PLAW-115publ439.
 439).
Energy Policy Act of 2005, Public Law     https://www.congress.gov/109/
 109-58).                                  plaws/publ58/PLAW-
                                           109publ58.pdf.
Low-Level Radioactive Waste Policy Act..  https://www.nrc.gov/about-nrc/governing-laws.html.
Low-Level Radioactive Waste Policy        https://www.nrc.gov/about-nrc/
 Amendments Act of 1985.                   governing-laws.html.

[[Page 9493]]

 
Public Law (Pub. L.) 118-67,              https://www.congress.gov/118/
 Accelerating Deployment of Versatile,     plaws/publ67/PLAW-
 Advanced Nuclear for Clean Energy of      118publ67.pdf.
 2024 (ADVANCE Act of 2024).
EURFUBRU XII-217/95, ``Safety and         https://www.researchgate.net/
 Environmental Assessment of Fusion        publication/
 Power (SEAFP): Report of the SEAFP        303252621_Safety_and_Environm
 Project, European Commission DG XII,      ental_Assessment_of_Fusion_Po
 Fusion Programme,'' June 1995.            wer_SEAFP_Final_Report_of_the
                                           _SEAFP_Project.
INFCIRC/254, Part 1, ``Guidelines for     https://
 Nuclear Transfers,'' Nuclear Suppliers    www.nuclearsuppliersgroup.org/
 Group (NSG) Guidelines, October 18,       index.php/en/guidelines/nsg-
 2019.                                     guidelines/guidelines-part-1.
IAEA INFCIRC/540 (Corrected), ``Model     https://www.iaea.org/topics/
 Protocol Additional to the Agreement(s)   additional-protocol.
 Between State(s) and the International
 Atomic Energy Agency for the
 Application of Safeguards,'' also known
 as the Additional Protocol (AP),
 September 1997.
Fusion Industry Association's Report,     https://
 ``The Global Fusion Industry in 2023,''   www.fusionindustryassociation
 July 2023.                                .org/fusion-industry-report-
                                           archive/.
National Academies of Science report,     https://doi.org/10.17226/
 ``Bringing Fusion to the US Grid,''       25991.
 2021.
UKAEA-RE(21)01, ``Technology Report--     https://scientific-
 Safety and Waste Aspects for Fusion       publications.ukaea.uk/wp-
 Power Plants,'' September 2021.           content/uploads/UKAEA-RE2101-
                                           Fusion-Technology-Report-
                                           Issue-1.pdf.
NRC Glossary............................  https://www.nrc.gov/reading-rm/basic-ref/glossary.
------------------------------------------------------------------------

    The NRC may post materials related to this document, including 
public comments, on the Federal rulemaking website at https://www.regulations.gov under Docket ID NRC-2023-0071. In addition, the 
Federal rulemaking website allows members of the public to receive 
alerts when changes or additions occur in a docket folder. To 
subscribe: (1) navigate to the docket folder (NRC-2023-0071); (2) click 
the ``Subscribe'' button; and (3) enter an email address and click on 
the ``Subscribe'' button.

List of Subjects

10 CFR Part 20

    Byproduct material, Criminal penalties, Fusion, Hazardous waste, 
Licensed material, Nuclear energy, Nuclear materials, Nuclear power 
plants and reactors, Occupational safety and health, Packaging and 
containers, Penalties, Radiation protection, Reporting and 
recordkeeping requirements, Source material, Special nuclear material, 
Waste treatment and disposal.

10 CFR Part 30

    Byproduct material, Criminal penalties, Government contracts, 
Fusion, Intergovernmental relations, Isotopes, Nuclear energy, Nuclear 
materials, Penalties, Radiation protection, Reporting and recordkeeping 
requirements, Whistleblowing.

10 CFR Part 37

    Byproduct material, Criminal penalties, Exports, Hazardous 
materials transportation, Imports, Licensed material, Nuclear 
materials, Penalties, Radioactive materials, Reporting and 
recordkeeping requirements, Security measures.

10 CFR Part 50

    Administrative practice and procedure, Antitrust, Backfitting, 
Classified information, Criminal penalties, Education, Emergency 
planning, Fire prevention, Fire protection, Intergovernmental 
relations, Nuclear power plants and reactors, Penalties, Radiation 
protection, Reactor siting criteria, Reporting and recordkeeping 
requirements, Whistleblowing.

10 CFR Part 51

    Administrative practice and procedure, Environmental impact 
statements, Hazardous waste, Nuclear energy, Nuclear materials, Nuclear 
power plants and reactors, Reporting and recordkeeping requirements.

10 CFR Part 72

    Administrative practice and procedure, Hazardous waste, Indians, 
Intergovernmental relations, Nuclear energy, Penalties, Radiation 
protection, Reporting and recordkeeping requirements, Security 
measures, Spent fuel, Whistleblowing.

10 CFR Part 110

    Administrative practice and procedure, Classified information, 
Criminal penalties, Exports, Imports, Intergovernmental relations, 
Nuclear energy, Nuclear materials, Nuclear power plants and reactors, 
Penalties, Reporting and recordkeeping requirements, Scientific 
equipment.

10 CFR Part 150

    Criminal penalties, Hazardous materials transportation, 
Intergovernmental relations, Nuclear energy, Nuclear materials, 
Penalties, Reporting and recordkeeping requirements, Security measures, 
Source material, Special nuclear material.

10 CFR Part 170

    Byproduct material, Import and export licenses, Intergovernmental 
relations, Nonpayment penalties, Nuclear energy, Nuclear materials, 
Nuclear power plants and reactors, Source material, Special nuclear 
material.

10 CFR Part 171

    Annual charges, Approvals, Byproduct material, Holders of 
certificates, Intergovernmental relations, Nonpayment penalties, 
Nuclear materials, Nuclear power plants and reactors, Registrations, 
Source material, Special nuclear material.

    For the reasons set out in the preamble and under the authority of 
the Atomic Energy Act of 1954, as amended; the Energy Reorganization 
Act of 1974, as amended; and 5 U.S.C. 552 and 553, the NRC is proposing 
to amend 10 CFR parts 20, 30, 37, 50, 51, 72, 110, 150, 170, and 171.

PART 20--STANDARDS FOR PROTECTION AGAINST RADIATION

0
1. The authority citation for part 20 continues to read as follows:

    Authority: Atomic Energy Act of 1954, secs. 11, 53, 63, 65, 81, 
103, 104, 161, 170H, 182, 186, 223, 234, 274, 1701 (42 U.S.C. 2014, 
2073, 2093, 2095, 2111, 2133, 2134, 2201, 2210h, 2232, 2236, 2273, 
2282, 2021, 2297f); Energy Reorganization Act of 1974, secs. 201, 
202 (42 U.S.C. 5841, 5842); Low-Level Radioactive Waste Policy 
Amendments Act of 1985, sec. 2 (42 U.S.C. 2021b); 44 U.S.C. 3504 
note.

0
2. In Sec.  20.1003:
0
a. Revise the definition for Byproduct material;
0
b. Add in alphabetical order the definition for Fusion machine; and

[[Page 9494]]

0
c. Revise the definition for Particle accelerator.
    The revisions and addition read as follows:


Sec.  20.1003   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2) The tailings or wastes produced by the extraction or 
concentration of uranium or thorium from ore processed primarily for 
its source material content, including discrete surface wastes 
resulting from uranium solution extraction processes. Underground ore 
bodies depleted by these solution extraction operations do not 
constitute ``byproduct material'' within this definition;
    (3)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and
    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (4) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *
    Fusion machine means a machine that is capable of--(1) transforming 
atomic nuclei, through fusion processes, into different elements, 
isotopes, or other particles; and (2) directly capturing and using the 
resultant products, including particles, heat, or other electromagnetic 
radiation.
* * * * *
    Particle accelerator (or accelerator) means any machine capable of 
accelerating electrons, protons, deuterons, or other charged particles 
in a vacuum, and of discharging the resultant particulate or other 
radiation into a medium at energies usually in excess of 1 megaelectron 
volt, including fusion machines. For the purposes of this definition, 
``accelerator'' is an equivalent term.
* * * * *


Sec.  20.1009   [Amended]

0
3. In Sec.  20.1009, in paragraph (b), add the citation ``20.2008,'' 
after the citation ``20.2006,''.
0
4. In Sec.  20.2008, revise paragraph (a) to read as follows:


Sec.  20.2008   Disposal of certain byproduct material.

    (a) Licensed material as defined in paragraphs (3) and (4) of the 
definition of Byproduct material set forth in Sec.  20.1003 may be 
disposed of in accordance with part 61 of this chapter, even though it 
is not defined as low-level radioactive waste. Therefore, any licensed 
byproduct material being disposed of at a facility, or transferred for 
ultimate disposal at a facility licensed under part 61 of this chapter, 
must meet the requirements of Sec.  20.2006. In addition, waste 
resulting from fusion machines must either be accompanied by an 
analysis showing the waste is manifested and labeled for disposal 
consistent with the description of the applicable waste class in Sec.  
61.7 of this chapter, based on the physical, chemical, and radiological 
characteristics of the waste, or be disposed of in a disposal facility 
that has completed a site-specific intrusion assessment that 
demonstrates the projected dose to an individual who inadvertently 
intrudes into the waste at the facility will not exceed 0.5 rem (5 mSv) 
per year.

PART 30--RULES OF GENERAL APPLICABILITY TO DOMESTIC LICENSING OF 
BYPRODUCT MATERIAL

0
5. The authority citation for part 30 continues to read as follows:

    Authority: Atomic Energy Act of 1954, secs. 11, 81, 161, 181, 
182, 183, 184, 186, 187, 223, 234, 274 (42 U.S.C. 2014, 2111, 2201, 
2231, 2232, 2233, 2234, 2236, 2237, 2273, 2282, 2021); Energy 
Reorganization Act of 1974, secs. 201, 202, 206, 211 (42 U.S.C. 
5841, 5842, 5846, 5851); 44 U.S.C. 3504 note.

0
6. In Sec.  30.4:
0
a. Revise the definition for Byproduct material;
0
b. Add in alphabetical order the definition for Fusion machine; and
0
c. Revise the definition for Particle accelerator.
    The revision and addition read as follows:


Sec.  30.4   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and
    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (3) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *
    Fusion machine means a machine that is capable of--(1) transforming 
atomic nuclei, through fusion processes, into different elements, 
isotopes, or other particles; and (2) directly capturing and using the 
resultant products, including particles, heat, or other electromagnetic 
radiation.
* * * * *
    Particle accelerator (or accelerator) means any machine capable of 
accelerating electrons, protons, deuterons, or other charged particles 
in

[[Page 9495]]

a vacuum, and of discharging the resultant particulate or other 
radiation into a medium at energies usually in excess of 1 megaelectron 
volt, including fusion machines. For the purposes of this definition, 
``accelerator'' is an equivalent term.
* * * * *
0
7. Amend Sec.  30.32 by adding new paragraph (k) to read as follows:


Sec.  30.32   Application for specific licenses.

* * * * *
    (k) An application for a specific license filed under this part for 
possession, use, and production of byproduct material associated with a 
fusion machine must include the following information:
    (1) A general description of the fusion machine.
    (2) A summary of the radiation safety aspects of the written 
operating and emergency procedures, including, as applicable--
    (i) A description with diagram(s) of the radiation protection 
measures to be employed for the possession, use, and production of 
byproduct material associated with the fusion machine, including all 
interlocks, access control systems, shielding, and radiation monitors;
    (ii) A description of the radioactive material handling procedures 
and inventory control procedures; and
    (iii) A description of any other components or systems used to 
control radiation and radioactive material.
    (iv) As an alternative to paragraphs (k)(2)(i) through (iii) of 
this section:
    (A) A description of any aspects of the fusion machine relevant to 
radiation safety that differ from the information listed in paragraphs 
(k)(2)(i) through (iii) of this section, and an explanation for how 
they ensure the possession, use, and production of byproduct material 
associated with a fusion machine can be performed safely; and
    (B) Any other information requested by the NRC staff in 
preapplication communications to enable the NRC to evaluate whether the 
possession, use, and production of byproduct material associated with a 
fusion machine can be performed safely.
    (3) A description of the applicant's organizational structure that 
describes the radiation safety responsibilities, authorities, and 
qualifications.
    (4) A description of training related to the fusion machine and 
radiation protection provided to personnel.
    (5) A description of the plan for inspection and maintenance of the 
fusion machine.
    (6) A description of the methodology for radioactive material 
inventory.
0
8. In Sec.  30.33, add new paragraph (a)(6) to read as follows:


Sec.  30.33   General requirements for issuance of specific licenses.

    (a) * * *
* * * * *
    (6) In the case of an application for possession, use, and 
production of byproduct material associated with a fusion machine, the 
application demonstrates adequate training and planning to operate and 
decommission the fusion machine safely.
* * * * *
0
9. In Sec.  30.51, revise paragraph (a) introductory text and paragraph 
(a)(1) to read as follows:


Sec.  30.51   Records.

    (a) Each person who produces or receives byproduct material 
pursuant to a license issued pursuant to the regulations in this part 
and parts 31 through 36 of this chapter shall keep records showing the 
production, receipt, transfer, and disposal of the byproduct material 
as follows:
    (1) The licensee shall retain each record of production or receipt 
of byproduct material as long as the material is possessed and for 
three years following transfer or disposal of the material.
* * * * *


Sec.  30.52   [Amended]

0
10. In Sec.  30.52, in paragraph (a), remove the phrase ``is used or 
stored'' and add in its place the phrase ``is used, stored, or 
produced''.

PART 37--PHYSICAL PROTECTION OF CATEGORY 1 AND CATEGORY 2 
QUANTITIES OF RADIOACTIVE MATERIAL

0
11. The authority citation for part 37 continues to read as follows:

    Authority: Atomic Energy Act of 1954, secs. 11, 53, 81, 103, 
104, 147, 148, 149, 161, 182, 183, 223, 234, 274 (42 U.S.C. 2014, 
2073, 2111, 2133, 2134, 2167, 2168, 2169, 2201, 2232, 2233, 2273, 
2282, 2021); Energy Reorganization Act of 1974, secs. 201, 202 (42 
U.S.C. 5841, 5842); 44 U.S.C. 3504 note.

0
12. In Sec.  37.5, revise the definition for Byproduct material to read 
as follows:


Sec.  37.5   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2) The tailings or wastes produced by the extraction or 
concentration of uranium or thorium from ore processed primarily for 
its source material content, including discrete surface wastes 
resulting from uranium solution extraction processes. Underground ore 
bodies depleted by these solution extraction operations do not 
constitute ``byproduct material'' within this definition;
    (3)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and
    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (4) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *

PART 50--DOMESTIC LICENSING OF PRODUCTION AND UTILIZATION 
FACILITIES

0
13. The authority citation for part 50 is revised to read as follows:

    Authority:  Atomic Energy Act of 1954, secs. 11, 101, 102, 103, 
104, 105, 108, 122, 147, 149, 161, 181, 182, 183, 184, 185, 186, 
187, 189, 223, 234 (42 U.S.C. 2014, 2131, 2132, 2133, 2134, 2135, 
2138, 2152, 2167, 2169, 2201, 2231, 2232, 2233, 2234, 2235, 2236, 
2237, 2239, 2273, 2282); Energy Reorganization Act of 1974, secs. 
201, 202, 206, 211 (42 U.S.C. 5841, 5842, 5846, 5851); Nuclear Waste 
Policy Act of 1982, sec. 306 (42 U.S.C. 10226); National 
Environmental Policy Act of 1969 (42 U.S.C. 4332); 44 U.S.C. 3504 
note.

0
14. In Sec.  50.2, revise the definition for Byproduct material to read 
as follows:

[[Page 9496]]

Sec.  50.2   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and
    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (3) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *

PART 51--ENVIRONMENTAL PROTECTION REGULATIONS FOR DOMESTIC 
LICENSING AND RELATED REGULATORY FUNCTIONS

0
15. The authority citation for part 51 is revised to read as follows:

    Authority:  Atomic Energy Act of 1954, secs. 161, 193 (42 U.S.C. 
2201, 2243); Energy Reorganization Act of 1974, secs. 201, 202 (42 
U.S.C. 5841, 5842); National Environmental Policy Act of 1969 (42 
U.S.C. 4332, 4334, 4335); Nuclear Waste Policy Act of 1982, secs. 
144(f), 121, 135, 141, 148 (42 U.S.C. 10134(f), 10141, 10155, 10161, 
10168); 44 U.S.C. 3504 note.

0
16. Amend Sec.  51.60 by adding new paragraph (b)(1)(viii) to read as 
follows:


Sec.  51.60   Environmental report--materials licenses.

* * * * *
    (b) * * *
    (1) * * *
    (viii) Construction and operation of a fusion machine pursuant to 
part 30 of this chapter.
* * * * *

PART 72--LICENSING REQUIREMENTS FOR THE INDEPENDENT STORAGE OF 
SPENT NUCLEAR FUEL, HIGH-LEVEL RADIOACTIVE WASTE, AND REACTOR-
RELATED GREATER THAN CLASS C WASTE

0
17. The authority citation for part 72 continues to read as follows:

    Authority:  Atomic Energy Act of 1954, secs. 51, 53, 57, 62, 63, 
65, 69, 81, 161, 182, 183, 184, 186, 187, 189, 223, 234, 274 (42 
U.S.C. 2071, 2073, 2077, 2092, 2093, 2095, 2099, 2111, 2201, 2210e, 
2232, 2233, 2234, 2236, 2237, 2238, 2273, 2282, 2021); Energy 
Reorganization Act of 1974, secs. 201, 202, 206, 211 (42 U.S.C. 
5841, 5842, 5846, 5851); National Environmental Policy Act of 1969 
(42 U.S.C. 4332); Nuclear Waste Policy Act of 1982, secs. 117(a), 
132, 133, 134, 135, 137, 141, 145(g), 148, 218(a) (42 U.S.C. 
10137(a), 10152, 10153, 10154, 10155, 10157, 10161, 10165(g), 10168, 
10198(a)); 44 U.S.C. 3504 note.

0
18. In Sec.  72.3, revise the definition for Byproduct material to read 
as follows:


Sec.  72.3   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and
    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (3) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *

PART 110--EXPORT AND IMPORT OF NUCLEAR EQUIPMENT AND MATERIAL

0
19. The authority citation for part 110 continues to read as follows:

    Authority:  Atomic Energy Act of 1954, secs. 11, 51, 53, 54, 57, 
62, 63, 64, 65, 81, 82, 103, 104, 109, 111, 121, 122, 123, 124, 126, 
127, 128, 129, 133, 134, 161, 170H, 181, 182, 183, 184, 186, 187, 
189, 223, 234 (42 U.S.C. 2014, 2071, 2073, 2074, 2077, 2092, 2093, 
2094, 2095, 2111, 2112, 2133, 2134, 2139, 2141, 2151, 2152, 2153, 
2154, 2155, 2156, 2157, 2158, 2160c, 2160d, 2201, 2210h, 2231, 2232, 
2233, 2234, 2236, 2237, 2239, 2273, 2282); Energy Reorganization Act 
of 1974, sec. 201 (42 U.S.C. 5841); Administrative Procedure Act (5 
U.S.C. 552, 553); 42 U.S.C. 2139a, 2155a; 44 U.S.C. 3504 note.
    Section 110.1(b) also issued under 22 U.S.C. 2403; 22 U.S.C. 
2778a; 50 App. U.S.C. 2401 et seq.

0
20. In Sec.  110.2, revise the definitions for Byproduct material and 
Particle accelerator to read as follows:


Sec.  110.2   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2) The tailings or wastes produced by the extraction or 
concentration of uranium or thorium from ore processed primarily for 
its source material content, including discrete surface wastes 
resulting from uranium solution extraction processes. Underground ore 
bodies depleted by these solution extraction operations do not 
constitute ``byproduct material'' within this definition;
    (3)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and

[[Page 9497]]

    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (4) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *
    Particle accelerator (or accelerator) means any machine capable of 
accelerating electrons, protons, deuterons, or other charged particles 
in a vacuum, and of discharging the resultant particulate or other 
radiation into a medium at energies usually in excess of 1 megaelectron 
volt, including fusion machines. For the purposes of this definition, 
``accelerator'' is an equivalent term.
* * * * *

PART 150--EXEMPTIONS AND CONTINUED REGULATORY AUTHORITY IN 
AGREEMENT STATES AND IN OFFSHORE WATERS UNDER SECTION 274

0
21. The authority citation for part 150 continues to read as follows:

    Authority:  Atomic Energy Act of 1954, secs. 11, 53, 81, 83, 84, 
122, 161, 181, 223, 234, 274 (42 U.S.C. 2014, 2201, 2231, 2273, 
2282, 2021); Energy Reorganization Act of 1974, sec. 201 (42 U.S.C. 
5841); Nuclear Waste Policy Act of 1982, secs. 135, 141 (42 U.S.C. 
10155, 10161); 44 U.S.C. 3504 note.
    Sections 150.3, 150.15, 150.15a, 150.31, 150.32 also issued 
under Atomic Energy Act secs. 11e(2), 81, 83, 84 (42 U.S.C. 
2014e(2), 2111, 2113, 2114).
    Section 150.14 also issued under Atomic Energy Act sec. 53 (42 
U.S.C. 2073).
    Section 150.15 also issued under Nuclear Waste Policy Act sec. 
135 (42 U.S.C. 10155, 10161).
    Section 150.17a also issued under Atomic Energy Act sec. 122 (42 
U.S.C. 2152).
    Section 150.30 also issued under Atomic Energy Act sec. 234 (42 
U.S.C. 2282).

0
22. In Sec.  150.3, revise the definition for Byproduct material to 
read as follows:


Sec.  150.3   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2) The tailings or wastes produced by the extraction or 
concentration of uranium or thorium from ore processed primarily for 
its source material content, including discrete surface wastes 
resulting from uranium solution extraction processes. Underground ore 
bodies depleted by these solution extraction operations do not 
constitute ``byproduct material'' within this definition;
    (3)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and
    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (4) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *

PART 170--FEES FOR FACILITIES, MATERIALS, IMPORT AND EXPORT 
LICENSES, AND OTHER REGULATORY SERVICES UNDER THE ATOMIC ENERGY ACT 
OF 1954, AS AMENDED

0
23. The authority citation for part 170 continues to read as follows:

    Authority:  Atomic Energy Act of 1954, secs. 11, 161(w) (42 
U.S.C. 2014, 2201(w)); Energy Reorganization Act of 1974, sec. 201 
(42 U.S.C. 5841); 42 U.S.C. 2215; 31 U.S.C. 901, 902, 9701; 44 
U.S.C. 3504 note.

0
24. In Sec.  170.3, revise the definition for Byproduct material to 
read as follows:


Sec.  170.3   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and
    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (3) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *

PART 171--ANNUAL FEES FOR REACTOR LICENSES AND FUEL CYCLE LICENSES 
AND MATERIALS LICENSES, INCLUDING HOLDERS OF CERTIFICATES OF 
COMPLIANCE, REGISTRATIONS, AND QUALITY ASSURANCE PROGRAM APPROVALS 
AND GOVERNMENT AGENCIES LICENSED BY THE NRC

0
25. The authority citation for part 171 continues to read as follows:

    Authority:  Atomic Energy Act of 1954, secs. 11, 161(w), 223, 
234 (42 U.S.C. 2014, 2201(w), 2273, 2282); Energy Reorganization Act 
of 1974, sec. 201 (42 U.S.C. 5841); 42 U.S.C. 2215; 44 U.S.C. 3504 
note.


[[Page 9498]]


0
26. In Sec.  171.5, revise the definition for Byproduct material to 
read as follows:


Sec.  171.5   Definitions.

* * * * *
    Byproduct material means--
    (1) Any radioactive material (except special nuclear material) 
yielded in, or made radioactive by, exposure to the radiation incident 
to the process of producing or using special nuclear material;
    (2)
    (i) Any discrete source of radium-226 that is produced, extracted, 
or converted after extraction, before, on, or after August 8, 2005, for 
use for a commercial, medical, or research activity; or
    (ii) Any material that--
    (A) Has been made radioactive by use of a particle accelerator, 
including by use of a fusion machine; and
    (B) If made radioactive by use of a particle accelerator that is 
not a fusion machine, is produced, extracted, or converted after 
extraction, before, on, or after August 8, 2005, for use for a 
commercial, medical, or research activity; and
    (3) Any discrete source of naturally occurring radioactive 
material, other than source material, that--
    (i) The Commission, in consultation with the Administrator of the 
Environmental Protection Agency, the Secretary of Energy, the Secretary 
of Homeland Security, and the head of any other appropriate Federal 
agency, determines would pose a threat similar to the threat posed by a 
discrete source of radium-226 to the public health and safety or the 
common defense and security; and
    (ii) Before, on, or after August 8, 2005, is extracted or converted 
after extraction for use in a commercial, medical, or research 
activity.
* * * * *

    Dated: February 23, 2026.

    For the Nuclear Regulatory Commission.
Carrie Safford,
Secretary of the Commission.
[FR Doc. 2026-03865 Filed 2-25-26; 8:45 am]
BILLING CODE 7590-01-P