Revise civil liability laws to provide a statutory duty of care for certain actions
HB 342 establishes a statutory duty of care for licensed health care providers in medical malpractice actions. It requires providers to offer care consistent with the skill and learning reasonably used by others in the same specialty and with the same certification. Individuals claiming a violation must establish this standard of care using competent evidence, including qualified expert testimony. The bill clarifies that the existence of risks does not change the established standard of care.
Bill status
signed
all 5 stages cleared
Introduction
Jan 2025
Committee Review
Mar 2025
House Passage
Apr 2025
Senate Passage
Apr 2025
Signed into Law
May 2025
Introduced Jan 29, 2025
Signed May 5, 2025
Maddy AI version diff · 2 comparisons
What changed between versions
HB0342_1(6).pdf
→
HB0342_X.pdf
·
1 edit
MINOR
The bill text was reformatted to remove redundant introductory lines and consolidate the title and sponsors into a standard enrolled bill layout. The substantive legal content, including the duty of care rules, codification instructions, effective dates, and applicability, remains identical to the previous version.
Scope change
No change to the bill's scope or applicability; the legal provisions are unchanged.
TECHNICAL
Removed redundant introductory text and reorganized the layout to match standard enrolled bill formatting without altering any legal provisions.
Floor votes · Senate Apr 9, 2025 · House Feb 13, 2025
How they voted
32–17
Passed · 1 other
Total votes 50
Apr 9, 2025
D
Democratic18
88% Nay
R
Republican32
93% Yea
Vote distribution
All Yea
All Nay
Mixed
No data
Full legislative history
Actions timeline
Total actions
46
Key actions
9
Committee
6
May 1, 2025
Signed into law
(H) Signed by Governor
lower
Apr 22, 2025
Upper · Passed
(S) Signed by President
upper
Apr 18, 2025
Lower · Passed
(H) Signed by Speaker
lower
Apr 9, 2025
Senate · Passed
Senate Vote: pass (32-17-1)
senate
Mar 26, 2025
Upper · Passed
(S) Committee Report - (S) Business, Labor and Economic Affairs
upper
Mar 26, 2025
Upper · Passed
(S) Committee Executive Action - (S) Business, Labor and Economic Affairs
upper
Feb 14, 2025
Committee
(S) Referred to Committee - (S) Business, Labor and Economic Affairs
upper
Feb 13, 2025
House · Passed
House Vote: pass (57-42-1)
house
Feb 6, 2025
Lower · Passed
(H) Committee Report - (H) Business and Labor
lower
Feb 6, 2025
Lower · Passed
(H) Committee Executive Action - (H) Business and Labor
lower
Jan 30, 2025
Committee
(H) Referred to Committee - (H) Business and Labor
lower
Jan 29, 2025
Introduced
(H) Introduced
lower
1 primary · 0 co-sponsors
Sponsors
Role
Legislator
Party
State
District
P
Bill Mercer
RRepublican
Ask Maddy
·
AI policy assistant
Ask Maddy about HB 342
Scope: MT
Hi! I can help you understand HB 342. What would you like to know?
Try one of these
i
Maddy answers using official bill text and legislative records. Always verify before sharing.
Sources cited inline