HB 321 Montana House · 2025 Regular Session

Generally revise laws related to the supervised practice of dental hygienists

HB 321 updates Montana law to clarify how dental hygienists can practice under supervision, particularly expanding access in public health settings. It creates a new "public health supervision" pathway allowing hygienists to provide preventative services like cleanings, fluoride applications, sealants, and oral cancer screenings without a dentist being present - only in facilities serving underserved populations (e.g., clinics for low-income patients, schools, or homeless programs). Hygienists must now obtain a "limited access permit" from the board, and the law specifies exactly which services are permitted (e.g., removing stains, charting) and prohibited (e.g., anesthesia, dentures). The bill also defines key terms like "public health facility" and requires referrals for patients needing care outside permitted services.
Bill status signed all 5 stages cleared
Introduction
Jan 2025
Committee Review
Feb 2025
House Passage
Mar 2025
Senate Passage
Mar 2025
Signed into Law
Apr 2025
Introduced Jan 27, 2025 Signed Apr 4, 2025
Maddy AI version diff · 5 comparisons

What changed between versions

HB0321_X(2).pdf HB0321_X(3).pdf · 1 edit
MINOR
The document provided appears to be a fragment of a legislative bill amendment showing only a single line change where a period was added to the end of a reference to Section 37-4-405. No substantive policy changes, such as new definitions, funding amounts, eligibility criteria, or enforcement mechanisms, are visible in this specific excerpt.
TECHNICAL

A period was added to the end of a section reference, which is a minor formatting correction rather than a substantive policy change.

Floor votes · Senate Mar 18, 2025 · House Feb 6, 2025

How they voted

490
Passed · 1 other
Total votes 50
Mar 18, 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
37
Key actions
9
Committee
6
Apr 3, 2025
Signed into law
(H) Signed by Governor
lower
Mar 24, 2025
Upper · Passed
(S) Signed by President
upper
Mar 21, 2025
Lower · Passed
(H) Signed by Speaker
lower
Mar 18, 2025
Senate · Passed
Senate Vote: pass (49-0-1)
senate
Feb 24, 2025
Upper · Passed
(S) Committee Report - (S) Business, Labor and Economic Affairs
upper
Feb 24, 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 6, 2025
House · Passed
House Vote: pass (98-1-1)
house
Jan 31, 2025
Lower · Passed
(H) Committee Report - (H) Business and Labor
lower
Jan 31, 2025
Lower · Passed
(H) Committee Executive Action - (H) Business and Labor
lower
Jan 28, 2025
Committee
(H) Referred to Committee - (H) Business and Labor
lower
Jan 27, 2025
Introduced
(H) Introduced
lower
1 primary · 0 co-sponsors

Sponsors

Role
Legislator
Party
State
District
P
Photo of Nelly Nicol
Nelly Nicol
RRepublican
MT
53