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42 U.S.C. § 18646 — Nuclear physics
Federal law — U.S. Code and appendices · legal_authorities
Page 9190
TITLE 42—THE PUBLIC HEALTH AND WELFARE
§ 18646
(5) $1,053,266,107 for fiscal year 2025;
(6) $1,047,962,074 for fiscal year 2026; and
(7) $1,114,187,798 for fiscal year 2027.
(Pub. L. 115–246, title III, § 307, Sept. 28, 2018, 132
Stat. 3148; Pub. L. 116–260, div. Z, title II,
§ 2008(a), Dec. 27, 2020, 134 Stat. 2474; Pub. L.
117–167, div. B, title I, § 10105(a), Aug. 9, 2022, 136
Stat. 1441.)
Editorial Notes
REFERENCES IN TEXT
Subsection (q), referred to in subsecs. (b)(2), (d)(3),
(e)(4), and (i)(10), probably should be a reference to sub-
sec. (r). Prior to amendment by Pub. L. 117–167, those
references were to subsec. (o) of this section, which re-
lated to authorization of appropriations and was redes-
ignated as subsec. (r) by Pub. L. 117–167, § 10105(a)(6).
See 2022 Amendment notes below.
The date of enactment of this section, referred to in
subsecs. (i)(1) and (n)(1), probably means the date of en-
actment of Pub. L. 116—260, which enacted subsecs. (i)
and (n) of this section and was approved Dec. 27, 2020.
The enactment of this section, referred to in subsecs.
(i)(2) and (l), probably means the enactment of Pub. L.
116—260, which enacted subsecs. (i) and (l) of this sec-
tion and made other amendments to this section.
CODIFICATION
Section is comprised of section 307 of Pub. L. 115–246.
Subsec. (g) of section 307 of Pub. L. 115–246 amended
section 2053 of this title.
AMENDMENTS
2022—Subsec. (b). Pub. L. 117–167, § 10105(a)(1), des-
ignated existing provisions as par. (1), inserted heading,
redesignated former pars. (1) and (2) as subpars. (A) and
(B), respectively, of par. (1) and subpars. (A) and (B) of
former par. (2) as cls. (i) and (ii), respectively, of sub-
par. (B) of par. (1), and added par. (2).
Subsec. (d)(3). Pub.
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Page 9190
TITLE 42—THE PUBLIC HEALTH AND WELFARE
§ 18646
(5) $1,053,266,107 for fiscal year 2025;
(6) $1,047,962,074 for fiscal year 2026; and
(7) $1,114,187,798 for fiscal year 2027.
(Pub. L. 115–246, title III, § 307, Sept. 28, 2018, 132
Stat. 3148; Pub. L. 116–260, div. Z, title II,
§ 2008(a), Dec. 27, 2020, 134 Stat. 2474; Pub. L.
117–167, div. B, title I, § 10105(a), Aug. 9, 2022, 136
Stat. 1441.)
Editorial Notes
REFERENCES IN TEXT
Subsection (q), referred to in subsecs. (b)(2), (d)(3),
(e)(4), and (i)(10), probably should be a reference to sub-
sec. (r). Prior to amendment by Pub. L. 117–167, those
references were to subsec. (o) of this section, which re-
lated to authorization of appropriations and was redes-
ignated as subsec. (r) by Pub. L. 117–167, § 10105(a)(6).
See 2022 Amendment notes below.
The date of enactment of this section, referred to in
subsecs. (i)(1) and (n)(1), probably means the date of en-
actment of Pub. L. 116—260, which enacted subsecs. (i)
and (n) of this section and was approved Dec. 27, 2020.
The enactment of this section, referred to in subsecs.
(i)(2) and (l), probably means the enactment of Pub. L.
116—260, which enacted subsecs. (i) and (l) of this sec-
tion and made other amendments to this section.
CODIFICATION
Section is comprised of section 307 of Pub. L. 115–246.
Subsec. (g) of section 307 of Pub. L. 115–246 amended
section 2053 of this title.
AMENDMENTS
2022—Subsec. (b). Pub. L. 117–167, § 10105(a)(1), des-
ignated existing provisions as par. (1), inserted heading,
redesignated former pars. (1) and (2) as subpars. (A) and
(B), respectively, of par. (1) and subpars. (A) and (B) of
former par. (2) as cls. (i) and (ii), respectively, of sub-
par. (B) of par. (1), and added par. (2).
Subsec. (d)(3). Pub. L. 117–167, § 10105(a)(2), substituted
‘‘subsection (q)’’ for ‘‘subsection (o)’’, ‘‘this subsection’’
for ‘‘subsection (d)’’, and ‘‘2027’’ for ‘‘2025’’.
Subsec. (e)(4). Pub. L. 117–167, § 10105(a)(3), substituted
‘‘subsection (q)’’ for ‘‘subsection (o)’’, ‘‘this subsection’’
for ‘‘subsection (e)’’, and ‘‘2027’’ for ‘‘2025’’.
Subsec. (i)(10). Pub. L. 117–167, § 10105(a)(4)(A), sub-
stituted, in introductory provisions, ‘‘subsection (q)’’
for ‘‘subsection (o)’’ and ‘‘this subsection’’ for ‘‘sub-
section (i)’’.
Subsec.
(i)(10)(F),
(G).
Pub.
L.
117–167,
§ 10105(a)(4)(B)–(D), added subpars. (F) and (G).
Subsec. (j). Pub. L. 117–167, § 10105(a)(5), added subsec.
(j) and struck out former subsec. (j). Prior to amend-
ment, text read as follows: ‘‘The Director shall support
research and development activities to design future
fusion reactor systems and examine and address the
technical drivers for the cost of these systems.’’
Subsecs. (o) to (q). Pub. L. 117–167, § 10105(a)(7), added
subsecs. (o) to (q). Former subsec. (o) redesignated (r).
Subsec. (r). Pub. L. 117–167, § 10105(a)(6), (8)(A), redes-
ignated subsec. (o) as (r) and substituted ‘‘Out of funds
authorized to be appropriated for the Office of Science
in a fiscal year, there’’ for ‘‘There’’ in introductory pro-
visions.
Subsec. (r)(3) to (7). Pub. L. 117–167, § 10105(a)(8)(B),
added pars. (3) to (7) and struck out former pars. (3) to
(5) relating to appropriations for fiscal years 2023 to
2025, respectively.
2020—Subsec. (a). Pub. L. 116–260, § 2008(a)(2), added
subsec. (a). Former subsec. (a) redesignated (b).
Subsecs. (b), (c). Pub. L. 116–260, § 2008(a)(1), redesig-
nated subsecs. (a) and (b) as (b) and (c), respectively.
Former subsec. (c) redesignated (d).
Subsec. (d). Pub. L. 116–260, § 2008(a)(3), amended sub-
sec. (d) generally. Prior to amendment, text read as fol-
lows: ‘‘The Director shall support research and develop-
ment activities for inertial fusion for energy applica-
tions.’’
Pub. L. 116–260, § 2008(a)(1), redesignated subsec. (c) as
(d). Former subsec. (d) redesignated (e).
Subsec. (e). Pub. L. 116–260, § 2008(a)(4), amended sub-
sec. (e) generally. Prior to amendment, text read as fol-
lows: ‘‘The Director shall support research and develop-
ment activities and facility operations at institutions
of higher education, National Laboratories, and private
facilities in the United States for a portfolio of alter-
native and enabling fusion energy concepts that may
provide solutions to significant challenges to the estab-
lishment of a commercial magnetic fusion power plant,
prioritized based on the ability of the United States to
play a leadership role in the international fusion re-
search community.’’
Pub. L. 116–260, § 2008(a)(1), redesignated subsec. (d) as
(e). Former subsec. (e) redesignated (f).
Subsecs. (f) to (h). Pub. L. 116–260, § 2008(a)(1), redesig-
nated subsecs. (f) and (g) as (g) and (h), respectively.
Subsecs. (i) to (o). Pub. L. 116–260, § 2008(a)(5), added
subsecs. (i) to (o).
§ 18646. Nuclear physics
(a) Program
As part of the activities authorized under sec-
tion 7139 of this title, the Director shall carry
out a research program, and support relevant fa-
cilities, to discover and understand various
forms of nuclear matter.
(b) Electron Ion Collider
(1) In general
The Secretary shall support construction of
an Electron Ion Collider as described in the
2015 Long Range Plan of the Nuclear Science
Advisory Committee and the report from the
National Academies of Science, Engineering,
and Medicine entitled ‘‘An Assessment of U.S.-
Based Electron-Ion Collider Science’’, in order
to measure the internal structure of the pro-
ton and the nucleus and answer fundamental
questions about the nature of visible matter.
(2) Facility capability
The Secretary shall ensure that the facility
described in paragraph (1) meets the require-
ments in the 2015 Long Range Plan described
in that paragraph, including—
(A) at least 70 percent polarized beams of
electrons and light ions;
(B) ion beams from deuterium to the
heaviest stable nuclei;
(C) variable center of mass energy from 20
to 140 GeV;
(D)
high
collision
luminosity
of
1033–34cm-2s-1; and
(E) the possibility of more than 1 inter-
action region.
(3) Start of operations
The Secretary shall, subject to the avail-
ability of appropriations, ensure that the start
of full operations of the facility under this
subsection occurs before December 31, 2030.
(4) Funding
Out of funds authorized to be appropriated
under subsection (c), there are authorized to
be appropriated to the Secretary to carry out
construction of the facility under this sub-
section—
(A) $90,000,000 for fiscal year 2023;
(B) $181,000,000 for fiscal year 2024;
Page 9191
TITLE 42—THE PUBLIC HEALTH AND WELFARE
§ 18648
(C) $219,000,000 for fiscal year 2025;
(D) $297,000,000 for fiscal year 2026; and
(E) $301,000,000 for fiscal year 2027.
(c) Authorization of appropriations
Out of funds authorized to be appropriated for
the Office of Science in a fiscal year, there are
authorized to be appropriated to the Secretary
to carry out the activities described in this sec-
tion—
(1) $840,480,000 for fiscal year 2023;
(2) $976,508,800 for fiscal year 2024;
(3) $1,062,239,328 for fiscal year 2025;
(4) $1,190,833,688 for fiscal year 2026; and
(5) $1,248,463,709 for fiscal year 2027.
(Pub. L. 115–246, title III, § 308, Sept. 28, 2018, 132
Stat. 3150; Pub. L. 117–167, div. B, title I, § 10107,
Aug. 9, 2022, 136 Stat. 1449.)
Editorial Notes
AMENDMENTS
2022—Pub. L. 117–167 amended section generally. Prior
to amendment, text was comprised of subsec. (a) of sec-
tion 308 of Pub. L. 115–246 which read as follows: ‘‘The
Director—
‘‘(1) may carry out a program for the production of
isotopes, including the development of techniques to
produce isotopes, that the Secretary determines are
needed for research, medical, industrial, or related
purposes; and
‘‘(2) shall ensure that isotope production activities
carried out under the program under this paragraph
do not compete with private industry unless the Di-
rector determines that critical national interests re-
quire the involvement of the Federal Government.’’
Prior to amendment, section 308 of Pub. L. 115–246 also
contained subsec. (b) which amended section 16321 of
this title.
§ 18647. Science laboratories infrastructure pro-
gram
(a) In general
The Director shall carry out a program to im-
prove the safety, efficiency, and mission readi-
ness of infrastructure at laboratories of the Of-
fice of Science.
(b) Inclusions
The program under subsection (a) shall in-
clude projects—
(1) to renovate or replace space that does not
meet research needs;
(2) to replace facilities that are no longer
cost effective to renovate or operate;
(3) to modernize utility systems to prevent
failures and ensure efficiency;
(4) to remove excess facilities to allow safe
and efficient operations; and
(5) to construct modern facilities to conduct
advanced
research
in
controlled
environ-
mental conditions.
(c) Approach
In carrying out the program under subsection
(a), the Director shall use all available ap-
proaches and mechanisms, as the Secretary de-
termines to be appropriate, including—
(1) capital line items;
(2) minor construction projects;
(3) energy savings performance contracts;
(4) utility energy service contracts;
(5) alternative financing; and
(6) expense funding.
(d) Submission to Congress
For each fiscal year through fiscal year 2027,
at the same time as the annual budget submis-
sion of the President, the Secretary shall submit
to the Committee on Appropriations and the
Committee on Energy and Natural Resources of
the Senate and the Committee on Appropria-
tions and the Committee on Science, Space, and
Technology of the House of Representatives a
list of projects for which the Secretary will pro-
vide funding under this section, including a de-
scription of each project and the funding profile
for the project.
(e) Authorization of appropriations
Out of funds authorized to be appropriated for
the Office of Science in a fiscal year, there is au-
thorized to be appropriated to the Secretary to
carry out the activities described in this section
$550,000,000 for each of fiscal years 2023 through
2027.
(Pub. L. 115–246, title III, § 309, Sept. 28, 2018, 132
Stat. 3150; Pub. L. 117–167, div. B, title I, § 10108,
Aug. 9, 2022, 136 Stat. 1450.)
Editorial Notes
AMENDMENTS
2022—Subsecs. (c) to (e). Pub. L. 117–167 added subsecs.
(c) to (e).
§ 18648. Accelerator research and development
(a) Program
As part of the activities authorized under sec-
tion 7139 of this title, the Director shall carry
out a research program—
(1) to advance accelerator science and tech-
nology relevant to the Department, other Fed-
eral agencies, and United States industry;
(2) to foster partnerships to develop, dem-
onstrate, and enable the commercial applica-
tion of accelerator technologies;
(3) to support the development of a skilled,
diverse, and inclusive accelerator workforce;
and
(4) to provide access to accelerator design
and engineering resources.
(b) Accelerator research
In carrying out the program authorized under
subsection (a), the Director shall support—
(1) research activities in cross-cutting accel-
erator technologies including superconducting
magnets and accelerators, beam physics, data
analytics-based accelerator controls, simula-
tion software, new particle sources, advanced
laser technology, and transformative research;
and
(2) optimal operation of the Accelerator Test
Facility.
(c) Accelerator development
In carrying out the program authorized under
subsection (a), the Director shall support part-
nerships to foster the development, demonstra-
tion, and commercial application of accelerator
technologies,
including
advanced
super-
conducting wire and cable, superconducting RF
cavities, and high efficiency radiofrequency
power sources for accelerators.
Cross-references
Connections may be documented source relationships, shared citations or nearby passages. Each explains its basis; a connection alone does not establish applicability to your situation.
Federal law — U.S. Code and appendices · legal_authorities
**(a) Program** As part of the activities authorized under [section 7139 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section7139&num=0&edition=prelim) and [section 16312 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section16312&num=0&edition=prelim), the Director shall carry out a fusion energy sciences research and enabling technology development program to effectively address the scientific and engineering challenges to building a cost competitive fusion power plant and to support the development of a competitive fusion power industry in the United States. As part of this program, the Director shall carry out research activities to expand the fundamental understandings of plasma and matter at very high temperatures and densities for fusion applications and for other engineering and plasma science applications.
**(b) Fusion materials research and development**
(1) **In general** — As part of the activities authorized in [section 16318 of this title](https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section16318&num=0&edition=prelim)—
(A) the Director, in coordination with the Assistant Secretary for Nuclear Energy of the Department, shall carry out research and development activities to identify, characterize, and demonstrate materials that can endure the neutron, plasma, and heat fluxes expected in a fusion power system; and
(B) the Director shall provide an assessment of—
(i) the need for one or more facilities that can examine and test potential fusion and next generation fission materials and other enabling technologies relevant to the development of fusion power; and
(ii) whether a single new facility that substantially addresses magnetic fusion and
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