HB 580 Montana House · 2025 Regular Session

Clarify water right abandonment

HB 580 clarifies Montana's water right abandonment laws, directly affecting individuals and entities holding water rights. The bill specifies that reducing or ceasing the use of a water right during a drought does not automatically signify an intent to abandon that right. This protection applies if the area is experiencing a moderate (D1) or worse drought, or if the nonuse aligns with an official drought plan. The legislation aims to prevent water rights from being lost solely due to conservation efforts during dry periods.
Bill status signed all 5 stages cleared
Introduction
Feb 2025
Committee Review
Apr 2025
House Passage
Apr 2025
Senate Passage
May 2025
Signed into Law
May 2025
Introduced Feb 19, 2025 Signed May 13, 2025
Maddy AI version diff · 6 comparisons

What changed between versions

HB0580_X(1).pdf HB0580_X(2).pdf · 1 edit
MINOR
The bill text shows minor formatting and spacing adjustments with no substantive policy changes. The title and content remain identical in meaning, with only whitespace and line break variations between the two versions.
TECHNICAL

Minor whitespace and line break adjustments were made to the bill title and closing text, with no changes to the actual legislative content or policy provisions.

Floor votes · Senate Apr 9, 2025 · House Apr 16, 2025

How they voted

490
Passed · 1 other
Total votes 50
Apr 9, 2025
D Democratic18
18 Yea
100% Yea
R Republican32
31 Yea 1
96% Yea
Vote distribution
All Yea All Nay Mixed No data
Full legislative history

Actions timeline

Total actions
42
Key actions
9
Committee
6
Amendments
1
May 8, 2025
Signed into law
(H) Signed by Governor
lower
May 2, 2025
Upper · Passed
(S) Signed by President
upper
Apr 29, 2025
Lower · Passed
(H) Signed by Speaker
lower
Apr 16, 2025
House · Passed
House Vote: pass (97-1-2)
house
Apr 9, 2025
Senate · Passed
Senate Vote: pass (49-0-1)
senate
Apr 9, 2025
Introduced
(S) Returned to House with Amendments
upper
Apr 5, 2025
Upper · Passed
(S) Committee Report - (S) Natural Resources
upper
Apr 4, 2025
Upper · Passed
(S) Committee Executive Action - (S) Natural Resources
upper
Mar 14, 2025
Committee
(S) Referred to Committee - (S) Natural Resources
upper
Feb 27, 2025
Lower · Passed
(H) Committee Report - (H) Natural Resources
lower
Feb 27, 2025
Lower · Passed
(H) Committee Executive Action - (H) Natural Resources
lower
Feb 20, 2025
Committee
(H) Referred to Committee - (H) Natural Resources
lower
Feb 19, 2025
Introduced
(H) Introduced
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Josh Seckinger
Josh Seckinger
DDemocratic
MT
62