Bills · H.R. 3857 · Text
Reported to Senate
Confirmed from the official record
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[Congressional Bills 119th Congress]
[From the U.S. Government Publishing Office]
[H.R. 3857 Reported in Senate (RS)]
<DOC>
Calendar No. 661
119th CONGRESS
2d Session
H. R. 3857
_______________________________________________________________________
IN THE SENATE OF THE UNITED STATES
December 11, 2025
Received; read twice and referred to the Committee on Energy and
Natural Resources
September 17, 2026
Reported by Mr. Lee, with an amendment
[Strike out all after the enacting clause and insert the part printed
in italic]
_______________________________________________________________________
AN ACT
To amend the Snow Water Supply Forecasting Program Authorization Act.
Be it enacted by the Senate and House of Representatives of the
United States of America in Congress assembled,
<DELETED>SECTION 1. SHORT TITLE.</DELETED>
<DELETED> This Act may be cited as the ``Snow Water Supply
Forecasting Reauthorization Act of 2025''.</DELETED>
<DELETED>SEC. 2. SNOW WATER SUPPLY FORECASTING PROGRAM.</DELETED>
<DELETED> The Snow Water Supply Forecasting Program Authorization
Act (43 U.S.C. 1477) is amended--</DELETED>
<DELETED> (1) in subsection (c)(2)--</DELETED>
<DELETED> (A) in subparagraph (A), by striking
``culminating in the report required under subsection
(d)(3)'' and inserting ``with an emphasis on deployment
of technologies that provide integration of snowpack
measuring and modeling''; and</DELETED>
<DELETED> (B) in subparagraph (B), by striking
``after submitting the report required by subsection
(d)(3),'';</DELETED>
<DELETED> (2) in subsection (d)--</DELETED>
<DELETED> (A) in paragraph (1)--</DELETED>
<DELETED> (i) in the heading, by adding
``with integrated modeling'' after
``data'';</DELETED>
<DELETED> (ii) by striking ``emerging
technologies for snowpack measurement, such
as'' and inserting ``technologies that provide
complete integration of accurate, timely, and
spatially complete snowpack measurements and
models, including the integration of'';
and</DELETED>
<DELETED> (iii) by striking subparagraphs
(A) through (C) and inserting the
following:</DELETED>
<DELETED> ``(A) airborne laser altimetry;</DELETED>
<DELETED> ``(B) imaging spectroscopy;</DELETED>
<DELETED> ``(C) integrated physics-based snowpack
and hydrologic modeling; and</DELETED>
<DELETED> ``(D) other technologies that the
Secretary determines are likely to provide more
accurate or timely snowpack measurement data
commensurate with operational water management
needs.'';</DELETED>
<DELETED> (B) in paragraph (2) by inserting ``,
including the National Oceanic and Atmospheric
Administration and the Natural Resources Conservation
Service,'' after ``other Federal agencies'';
and</DELETED>
<DELETED> (C) by striking paragraph (3);</DELETED>
<DELETED> (3) in subsection (e)--</DELETED>
<DELETED> (A) in paragraph (1), by striking ``After
submitting the report required under subsection (d)(3),
the'' and inserting ``The''; and</DELETED>
<DELETED> (B) by striking paragraph (2) and
inserting the following:</DELETED>
<DELETED> ``(2) Focus.--The program shall focus on
activities that will maintain, establish, expand, or advance
snowpack measurement and integrated modeling, with an emphasis
on--</DELETED>
<DELETED> ``(A) enhancing activities to achieve
improved snow and water supply forecasting results that
are more responsive to changing weather and watershed
conditions;</DELETED>
<DELETED> ``(B) real-time integration of activities
described in this section with water supply
forecasts;</DELETED>
<DELETED> ``(C) activities in river basins where
activities described in this section can produce snow
and water supply data to inform water management
decisions, including interstate water management
decisions; and</DELETED>
<DELETED> ``(D) building program partners' capacity
to implement and adapt to the new measurement and
forecast capabilities enabled under this
program.'';</DELETED>
<DELETED> (4) in subsection (f)--</DELETED>
<DELETED> (A) by striking ``of this Act'' and
inserting ``of the Snow Water Supply Forecasting
Reauthorization Act of 2025'';</DELETED>
<DELETED> (B) in paragraph (1)--</DELETED>
<DELETED> (i) by striking ``and sub-
basins'';</DELETED>
<DELETED> (ii) by striking ``technologies''
and inserting ``and integrated modeling
technologies''; and</DELETED>
<DELETED> (iii) by striking ``technology
used'' and inserting ``application, outcome,
and data resources used''; and</DELETED>
<DELETED> (C) in paragraph (2), by striking ``or
sub-basin''; and</DELETED>
<DELETED> (5) in subsection (g), by striking ``$15,000,000,
in the aggregate, for fiscal years 2022 through 2026'' and
inserting ``$3,000,000 for each of fiscal years 2027 through
2031''.</DELETED>
SECTION 1. SHORT TITLE.
This Act may be cited as the ``Snow Water Supply Forecasting
Program Reauthorization Act of 2026''.
SEC. 2. SNOW WATER SUPPLY FORECASTING PROGRAM.
The Snow Water Supply Forecasting Program Authorization Act (43
U.S.C. 1477) is amended--
(1) in subsection (c)(2)--
(A) in subparagraph (A)--
(i) by striking ``develop'' and inserting
``continue developing''; and
(ii) by striking ``culminating in the
report required under subsection (d)(3)'' and
inserting ``with an emphasis on development and
deployment of more accurate, timely, and cost-
effective snow monitoring technologies and
water supply forecasting, including
technologies that integrate snowpack measuring
and modeling''; and
(B) in subparagraph (B)--
(i) by striking ``after submitting the
report required by subsection (d)(3),''; and
(ii) by inserting ``and to improve water
supply forecasting'' after ``watersheds'';
(2) in subsection (d)--
(A) in paragraph (1)--
(i) in the paragraph heading, by inserting
``and water supply forecasting'' after
``data'';
(ii) in the matter preceding subparagraph
(A), by striking ``emerging technologies for
snowpack measurement, such as'' and inserting
``technologies for snowpack measurements and
methods to forecast water supply, including'';
(iii) in subparagraph (B), by striking
``and'' at the end; and
(iv) by striking subparagraph (C) and
inserting the following:
``(C) imaging spectroscopy;
``(D) machine learning;
``(E) snowpack and hydrologic modeling; and
``(F) other technologies that the Secretary
determines are likely to provide more accurate or
timely snowpack measurement data or analytical methods
utilizing snowpack data that can improve water supply
forecasting to inform water management and reservoir
operations.'';
(B) in paragraph (2), by striking ``emerging
technologies for snowpack measurement'' and inserting
``technologies for snowpack measurement and models,
including the Department of Agriculture and the
National Oceanic and Atmospheric Administration''; and
(C) by striking paragraph (3);
(3) in subsection (e)--
(A) in paragraph (1)--
(i) by striking ``After submitting the
report required under subsection (d)(3), the''
and inserting ``The''; and
(ii) by striking ``in particular
watersheds'' and inserting ``and water supply
forecasts in particular watersheds and to
explore new statistical, machine learning, or
physical models to generate improved water
supply forecasts utilizing snowpack data''; and
(B) by striking paragraph (2) and inserting the
following:
``(2) Focus.--The program shall focus on activities that
will maintain, establish, expand, or advance snowpack
measurement and modeling projected water supply, with an
emphasis on--
``(A) enhancing activities to achieve improved snow
and water supply forecasting results that are more
responsive to changing weather and watershed
conditions;
``(B) activities in river basins where activities
described in this section relating to snowpack
measurement and water supply forecasting can inform
water management decisions or models at a multi-water
user, multi-basin, or multi-State scale, including
interstate water management decisions; and
``(C) building the capacity of program partners to
implement and adapt to the new measurement and
forecasting capabilities enabled under the program.'';
(4) in subsection (f)--
(A) in the matter preceding paragraph (1), by
striking ``this Act'' and inserting ``the Snow Water
Supply Forecasting Program Reauthorization Act of
2026'';
(B) in paragraph (2), by striking ``or sub-basin'';
(C) by redesignating paragraph (2) as paragraph
(4); and
(D) by striking paragraph (1) and inserting the
following:
``(1) a list of basins for which snowpack measurement and
integrated modeling technologies are being used under the
program, including a description of each application, outcome,
and data resource used;
``(2) an assessment of which technologies best inform water
supply forecasting for multiple water districts, communities,
or States;
``(3) an assessment of forecasts generated using new
technologies authorized under this Act compared against water
supply forecast benchmarks from the Department of Agriculture
and the National Oceanic and Atmospheric Administration; and'';
and
(5) in subsection (g), by striking ``$15,000,000, in the
aggregate, for fiscal years 2022 through 2026'' and inserting
``$3,000,000 for each of fiscal years 2027 through 2031''.
Calendar No. 661
119th CONGRESS
2d Session
H. R. 3857
_______________________________________________________________________
AN ACT
To amend the Snow Water Supply Forecasting Program Authorization Act.
_______________________________________________________________________
September 17, 2026
Reported with an amendment