H. R. 133—1278 
SEC. 2002. AMENDMENTS TO DEFINITIONS IN ENERGY POLICY ACT 
OF 2005. 
Section 951(b)(1) of the Energy Policy Act of 2005 (42 U.S.C. 
16271(b)(1)) is amended to read as follows: 
‘‘(1) ADVANCED
NUCLEAR
REACTOR.—The term ‘advanced 
nuclear reactor’ means— 
‘‘(A) a nuclear fission reactor, including a prototype 
plant (as defined in sections 50.2 and 52.1 of title 10, 
Code of Federal Regulations (or successor regulations)), 
with significant improvements compared to reactors oper-
ating on the date of enactment of the Energy Act of 2020, 
including improvements such as— 
‘‘(i) additional inherent safety features; 
‘‘(ii) lower waste yields; 
‘‘(iii) improved fuel and material performance; 
‘‘(iv) increased tolerance to loss of fuel cooling; 
‘‘(v) enhanced reliability or improved resilience; 
‘‘(vi) increased proliferation resistance; 
‘‘(vii) increased thermal efficiency; 
‘‘(viii) reduced consumption of cooling water and 
other environmental impacts; 
‘‘(ix) the ability to integrate into electric applica-
tions and nonelectric applications; 
‘‘(x) modular sizes to allow for deployment that 
corresponds with the demand for electricity or process 
heat; and 
‘‘(xi) operational flexibility to respond to changes 
in demand for electricity or process heat and to com-
plement integration with intermittent renewable 
energy or energy storage; and 
‘‘(B) a fusion reactor.’’. 
SEC. 2003. NUCLEAR ENERGY RESEARCH, DEVELOPMENT, DEM-
ONSTRATION, AND COMMERCIAL APPLICATION PRO-
GRAMS. 
(a) REACTOR CONCEPTS RESEARCH, DEVELOPMENT, AND DEM-
ONSTRATION.—Section 952 of the Energy Policy Act of 2005 (42 
U.S.C. 16272) is amended to read as follows: 
‘‘SEC. 952. REACTOR CONCEPTS RESEARCH, DEVELOPMENT, DEM-
ONSTRATION, AND COMMERCIAL APPLICATION. 
‘‘(a) SUSTAINABILITY PROGRAM FOR LIGHT WATER REACTORS.— 
‘‘(1) IN GENERAL.—The Secretary shall carry out a program 
of research, development, demonstration, and commercial 
application, including through the use of modeling and simula-
tion, to support existing operating nuclear power plants which 
shall address technologies to modernize and improve, with 
respect to such plants— 
‘‘(A) reliability; 
‘‘(B) capacity; 
‘‘(C) component aging; 
‘‘(D) safety; 
‘‘(E) physical security and security costs; 
‘‘(F) plant lifetime; 
‘‘(G) operations and maintenance costs, including by 
utilizing risk-informed systems analysis; 
‘‘(H) the ability for plants to operate flexibly;
H. R. 133—1279 
‘‘(I) nuclear integrated energy system applications 
described in subsection (c); 
‘‘(J) efficiency; 
‘‘(K) environmental impacts; and 
‘‘(L) resilience. 
‘‘(2) 
AUTHORIZATION
OF
APPROPRIATIONS.—There 
are 
authorized to be appropriated to the Secretary to carry out 
the program under this subsection $55,000,000 for each of 
fiscal years 2021 through 2025. 
‘‘(3) REPORT.—The Secretary shall submit annually a public 
report to the Committee on Science, Space, and Technology 
of the House of Representatives and the Committee on Energy 
and Natural Resources of the Senate documenting funds spent 
under the program that describes program activities, objectives, 
and outcomes, including those that could benefit the entirety 
of the existing reactor fleet, such as with respect to aging 
management and related sustainability concerns, and identi-
fying funds awarded to private entities. 
‘‘(b) ADVANCED REACTOR TECHNOLOGIES.— 
‘‘(1) IN GENERAL.—The Secretary shall carry out a program 
of research, development, demonstration, and commercial 
application to support advanced reactor technologies. 
‘‘(2) REQUIREMENTS.—In carrying out the program under 
this subsection, the Secretary shall— 
‘‘(A) prioritize designs for advanced nuclear reactors 
that are proliferation resistant and passively safe, including 
designs that, compared to reactors operating on the date 
of enactment of the Energy Act of 2020— 
‘‘(i) are economically competitive with other electric 
power generation plants; 
‘‘(ii) have higher efficiency, lower cost, less environ-
mental impacts, increased resilience, and improved 
safety; 
‘‘(iii) use fuels that are proliferation resistant and 
have reduced production of high-level waste per unit 
of output; and 
‘‘(iv) use advanced instrumentation and monitoring 
systems; 
‘‘(B) consult with the Nuclear Regulatory Commission 
on appropriate metrics to consider for the criteria specified 
in subparagraph (A); 
‘‘(C) support research and development to resolve mate-
rials 
challenges 
relating 
to 
extreme 
environments, 
including environments that contain high levels of— 
‘‘(i) radiation fluence; 
‘‘(ii) temperature; 
‘‘(iii) pressure; and 
‘‘(iv) corrosion; 
‘‘(D) support research and development to aid in the 
qualification of advanced fuels, including fabrication tech-
niques; 
‘‘(E) support activities that address near-term chal-
lenges in modeling and simulation to enable accelerated 
design of and licensing of advanced nuclear reactors, 
including the identification of tools and methodologies for 
validating such modeling and simulation efforts;
H. R. 133—1280 
‘‘(F) develop technologies, including technologies to 
manage, reduce, or reuse nuclear waste; 
‘‘(G) ensure that nuclear research infrastructure is 
maintained or constructed, including— 
‘‘(i) currently operational research reactors at the 
National Laboratories and institutions of higher edu-
cation; 
‘‘(ii) hot cell research facilities; 
‘‘(iii) a versatile fast neutron source; and 
‘‘(iv) advanced coolant testing facilities, including 
coolants such as lead, sodium, gas, and molten salt; 
‘‘(H) improve scientific understanding of nonlight water 
coolant physics and chemistry; 
‘‘(I) develop advanced sensors and control systems, 
including the identification of tools and methodologies for 
validating such sensors and systems; 
‘‘(J) investigate advanced manufacturing and advanced 
construction techniques and materials to reduce the cost 
of advanced nuclear reactors, including the use of digital 
twins and of strategies to implement project and construc-
tion management best practices, and study the effects of 
radiation and corrosion on materials created with these 
techniques; 
‘‘(K) consult with the Administrator of the National 
Nuclear Security Administration to integrate reactor safe-
guards and security into design; 
‘‘(L) support efforts to reduce any technical barriers 
that would prevent commercial application of advanced 
nuclear energy systems; and 
‘‘(M) develop various safety analyses and emergency 
preparedness and response methodologies. 
‘‘(3) COORDINATION.—The Secretary shall coordinate with 
individuals engaged in the private sector and individuals who 
are experts in nuclear nonproliferation, environmental and 
public health and safety, and economics to advance the develop-
ment of various designs of advanced nuclear reactors. In car-
rying out this paragraph, the Secretary shall convene an 
advisory committee of such individuals and such committee 
shall submit annually a report to the relevant committees of 
Congress with respect to the progress of the program. 
‘‘(4) 
AUTHORIZATION
OF
APPROPRIATIONS.—There 
are 
authorized to be appropriated to the Secretary to carry out 
the program under this subsection $55,000,000 for each of 
fiscal years 2021 through 2025. 
‘‘(c) 
NUCLEAR
INTEGRATED
ENERGY
SYSTEMS
RESEARCH, 
DEVELOPMENT, DEMONSTRATION, AND COMMERCIAL APPLICATION 
PROGRAM.— 
‘‘(1) IN GENERAL.—The Secretary shall carry out a program 
of research, development, demonstration, and commercial 
application to develop nuclear integrated energy systems, com-
posed of 2 or more co-located or jointly operated subsystems 
of energy generation, energy storage, or other technologies and 
in which not less than 1 such subsystem is a nuclear energy 
system, to— 
‘‘(A) reduce greenhouse gas emissions in both the power 
and nonpower sectors; and 
‘‘(B) maximize energy production and efficiency.
H. R. 133—1281 
‘‘(2) COORDINATION.—In carrying out the program under 
paragraph (1), the Secretary shall coordinate with— 
‘‘(A) relevant program offices within the Department 
of Energy; 
‘‘(B) National Laboratories; 
‘‘(C) institutions of higher education; and 
‘‘(D) the private sector. 
‘‘(3) FOCUS AREAS.—The program under paragraph (1) may 
include research, development, demonstration, or commercial 
application of nuclear integrated energy systems with respect 
to— 
‘‘(A) desalination technologies and processes; 
‘‘(B) hydrogen or other liquid and gaseous fuel or chem-
ical production; 
‘‘(C) heat for industrial processes; 
‘‘(D) district heating; 
‘‘(E) heat or electricity generation and storage; 
‘‘(F) carbon capture, use, utilization, and storage; 
‘‘(G) microgrid or island applications; 
‘‘(H) integrated systems modeling, analysis, and 
optimization, inclusive of different configurations of 
integrated energy systems; and 
‘‘(I) integrated design, planning, building, and oper-
ation of systems with existing infrastructure, including 
interconnection requirements with the electric grid, as 
appropriate. 
‘‘(4) 
AUTHORIZATION
OF
APPROPRIATIONS.—There 
are 
authorized to be appropriated to the Secretary to carry out 
the program under this subsection— 
‘‘(A) $20,000,000 for fiscal year 2021; 
‘‘(B) $30,000,000 for fiscal year 2022; 
‘‘(C) $30,000,000 for fiscal year 2023; 
‘‘(D) $40,000,000 for fiscal year 2024; and 
‘‘(E) $40,000,000 for fiscal year 2025.’’. 
(b) FUEL CYCLE RESEARCH AND DEVELOPMENT.—Section 953 
of the Energy Policy Act of 2005 (42 U.S.C. 16273) is amended 
to read as follows: 
‘‘SEC. 953. FUEL CYCLE RESEARCH, DEVELOPMENT, DEMONSTRATION, 
AND COMMERCIAL APPLICATION. 
‘‘(a) USED NUCLEAR FUEL RESEARCH, DEVELOPMENT, DEM-
ONSTRATION, AND COMMERCIAL APPLICATION.— 
‘‘(1) IN GENERAL.—The Secretary shall conduct an advanced 
fuel cycle research, development, demonstration, and commer-
cial application program to improve fuel cycle performance, 
minimize environmental and public health and safety impacts, 
and support a variety of options for used nuclear fuel storage, 
use, and disposal, including advanced nuclear reactor and non- 
reactor concepts (such as radioisotope power systems), which 
may include— 
‘‘(A) dry cask storage; 
‘‘(B) consolidated interim storage; 
‘‘(C) deep geological storage and disposal, including 
mined repository, and other technologies; 
‘‘(D) used nuclear fuel transportation; 
‘‘(E) integrated waste management systems; 
‘‘(F) vitrification;