upgrade under this paragraph occurs before 
March 31, 2026. 
‘‘(D) FUNDING.—Out of funds authorized 
to be appropriated under section 409 for Basic 
Energy Sciences, there shall be made available 
to the Secretary to carry out the upgrade under 
this paragraph— 
‘‘(i) $106,200,000 for fiscal year 
2022; and 
‘‘(ii) $5,000,000 for fiscal year 2023. 
‘‘(2) SPALLATION
NEUTRON
SOURCE
PROTON 
POWER UPGRADE.— 
‘‘(A) IN
GENERAL.—The Secretary shall 
provide for a proton power upgrade to the 
Spallation Neutron Source. 
‘‘(B) 
PROTON
POWER
UPGRADE
DE-
FINED.—For the purposes of this paragraph, 
the term ‘proton power upgrade’ means the 
Spallation Neutron Source power upgrade de-
scribed in— 
‘‘(i) the publication of the Office of 
Science of the Department of Energy titled 
‘Facilities for the Future of Science: A 
Twenty-Year Outlook’, published December 
2003; 
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‘‘(ii) the publication of the Office of 
Science of the Department of Energy titled 
‘Four Years Later: An Interim Report on 
Facilities for the Future of Science: A 
Twenty-Year Outlook’, published August 
2007; and 
‘‘(iii) the publication approved by the 
Basic Energy Sciences Advisory Committee 
on June 9, 2016, titled ‘Report on Facility 
Upgrades’. 
‘‘(C) START
OF
OPERATIONS.—The Sec-
retary shall, to the maximum extent practicable, 
ensure that the start of full operations of the 
upgrade under this paragraph occurs before De-
cember 31, 2025. 
‘‘(D) FUNDING.—Out of funds authorized 
to be appropriated under section 409 for Basic 
Energy Sciences, there shall be made available 
to the Secretary to carry out the upgrade under 
this paragraph— 
‘‘(i) $25,000,000 for fiscal year 2022; 
‘‘(ii) $17,000,000 for fiscal year 2023; 
and 
‘‘(iii) $7,800,000 for fiscal year 2024. 
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‘‘(3) SPALLATION
NEUTRON
SOURCE
SECOND 
TARGET STATION.— 
‘‘(A) IN
GENERAL.—The Secretary shall 
provide for a second target station for the 
Spallation Neutron Source. 
‘‘(B) DEFINITION
OF
SECOND
TARGET 
STATION.—For the purposes of this paragraph, 
the term ‘second target station’ means the 
Spallation Neutron Source second target station 
described in— 
‘‘(i) the publication of the Office of 
Science of the Department of Energy titled 
‘Facilities for the Future of Science: A 
Twenty-Year Outlook’, published December 
2003; 
‘‘(ii) the publication of the Office of 
Science of the Department of Energy titled 
‘Four Years Later: An Interim Report on 
Facilities for the Future of Science: A 
Twenty-Year Outlook’, published August 
2007; and 
‘‘(iii) the publication approved by the 
Basic Energy Sciences Advisory Committee 
on June 9, 2016, titled ‘Report on Facility 
Upgrades’. 
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‘‘(C) START
OF
OPERATIONS.—The Sec-
retary shall, to the maximum extent practicable, 
ensure that the start of full operations of the 
second target station under this paragraph oc-
curs before December 31, 2030, with the option 
for early operation in 2028. 
‘‘(D) FUNDING.—Out of funds authorized 
to be appropriated under section 409 for Basic 
Energy Sciences, there shall be made available 
to the Secretary to carry out activities, includ-
ing construction, under this paragraph— 
‘‘(i) $50,000,000 for fiscal year 2022; 
‘‘(ii) $200,000,000 for fiscal year 
2023; 
‘‘(iii) $275,000,000 for fiscal year 
2024; 
‘‘(iv) $275,000,000 for fiscal year 
2025; 
‘‘(v) $275,000,000 for fiscal year 
2026; 
‘‘(vi) $250,000,000 for fiscal year 
2027; and 
‘‘(vii) $120,000,000 for fiscal year 
2028. 
‘‘(4) ADVANCED LIGHT SOURCE UPGRADE.— 
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‘‘(A) IN
GENERAL.—The Secretary shall 
provide for the upgrade to the Advanced Light 
Source described in the publication approved by 
the Basic Energy Sciences Advisory Committee 
on June 9, 2016, titled ‘Report on Facility Up-
grades’, including the development of a multi- 
bend achromat lattice to produce a high flux of 
coherent x-rays within the soft x-ray energy re-
gion. 
‘‘(B) DEFINITIONS.—In this paragraph: 
‘‘(i) FLUX.—The term ‘flux’ means 
the rate of flow of photons. 
‘‘(ii) SOFT X-RAY.—The term ‘soft x- 
ray’ means a photon with energy in the 
range from 50 to 2,000 electron volts. 
‘‘(C) START
OF
OPERATIONS.—The Sec-
retary shall, to the maximum extent practicable, 
ensure that the start of full operations of the 
upgrade under this paragraph occurs before De-
cember 31, 2026. 
‘‘(D) FUNDING.—Out of funds authorized 
to be appropriated under section 409 for Basic 
Energy Sciences, there shall be made available 
to the Secretary to carry out the upgrade under 
this paragraph— 
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‘‘(i) $100,000,000 for fiscal year 
2022; 
‘‘(ii) $130,000,000 for fiscal year 
2023; 
‘‘(iii) $102,500,000 for fiscal year 
2024; and 
‘‘(iv) $21,500,000 for fiscal year 
2025. 
‘‘(5) LINAC COHERENT LIGHT SOURCE II HIGH 
ENERGY UPGRADE.— 
‘‘(A) IN
GENERAL.—The Secretary shall 
provide for the upgrade to the Linac Coherent 
Light Source II facility described in the publi-
cation approved by the Basic Energy Sciences 
Advisory Committee on June 9, 2016, titled 
‘Report on Facility Upgrades’, including the de-
velopment of experimental capabilities for high 
energy x-rays to reveal fundamental scientific 
discoveries. The Secretary shall ensure the up-
grade under this paragraph enables the produc-
tion and use of high energy, ultra-short pulse x- 
rays delivered at a high repetition rate. 
‘‘(B) DEFINITIONS.—In this paragraph: 
‘‘(i) HIGH ENERGY X-RAY.—The term 
‘high energy x-ray’ means a photon with 
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