SB 535 — Revise laws related to experimental treatments
Last action — Chapter Number Assigned
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✓Introduced
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✓In Committee
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✓Passed Senate
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✓Passed House
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✓To Executive
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6Enacted
This bill has been enacted into law. Introduced November 04, 2024. Enacted.
Signed by Governor Greg Gianforte (Republican) on May 13, 2025.
Odds of enactment
High chanceBased on the sponsor, cosponsors, and committee posture, this bill has a high chance of becoming law.
Upgrade to see the exact probability and what's driving it.
A statistical estimate from our own model of past outcomes — an insight, not a guarantee. Policymaking is volatile.
Prognosis
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Enacted
Current position in the legislative process.
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1 sponsor
1 primary, 0 co-sponsors signed on.
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Cleared a recorded vote
Passed 8 recorded votes so far.
Based on stage, sponsorship breadth, committee status, recorded votes, and cross-state momentum — a description of the observable signals, not a prediction.
Summary
Revise laws related to experimental treatments
Bill Text
We don't have the full text on file for this bill yet.
Read SB 535 on the official Montana source →Action History
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Chapter Number Assigned
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(S) Signed by Governor
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(S) Transmitted to Governor
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(H) Signed by Speaker
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(S) Signed by President
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(S) Returned from Enrolling
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(S) Sent to Enrolling
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(S) 3rd Reading House Amendments
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(S) Scheduled for 3rd Reading
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(S) 2nd Reading House Amendments
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(S) Scheduled for 2nd Reading
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(H) Returned to Senate with Amendments
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(H) 3rd Reading
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(H) Scheduled for 3rd Reading
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(H) Reconsidered Previous Action
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(H) 3rd Reading
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(H) Scheduled for 3rd Reading
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(H) 2nd Reading
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(H) Scheduled for 2nd Reading
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(H) Committee Report
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(H) Committee Executive Action
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(S) Revised Fiscal Note Printed
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(S) Fiscal Note Unsigned
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(S) Revised Fiscal Note Received
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(H) Hearing
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(H) 1st Reading
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(S) Revised Fiscal Note Requested
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(H) Referred to Committee
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(S) Transmitted to House
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(S) 3rd Reading
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(S) Scheduled for 3rd Reading
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(S) 2nd Reading
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(S) Scheduled for 2nd Reading
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(S) Committee Report
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(S) Committee Executive Action
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(S) Fiscal Note Printed
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(S) Fiscal Note Unsigned
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(S) Fiscal Note Received
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(S) Hearing
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(S) Fiscal Note Requested
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(S) Referred to Committee
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(S) Introduced
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(LC) Draft Delivered to Requester
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(LC) Draft Ready for Delivery
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(LC) Draft in Assembly
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(LC) Draft in Final Drafter Review
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(LC) Draft in Input/Proofing
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(LC) Draft in Edit
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(LC) Draft in Legal Review
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(LC) Draft Taken Off Hold
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(LC) Draft On Hold
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(LC) Drafter Assigned
Sponsors
- Legislator #48 · Primary
Sponsorship breakdown
Export CSV (upgrade) →1 sponsors · 0 co-sponsors · 205 not signed on · 98 voted No
Sponsors (1)
- Legislator #48
Co-sponsors (0)
None.
Not signed on (205)
205 members have not signed on to this bill.
Show all 205 →"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.
Votes
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Unaffiliated | 29 | 21 | 0 | 0 |
| Total | 29 | 21 | 0 | 0 |
| % of votes cast | 58% | 42% | 0% | 0% |
How each member voted (50)
| Member | Party | Vote |
|---|---|---|
| Andrea Olsen | — | Yea |
| Barry Usher | — | Nay |
| Becky Beard | — | Nay |
| Bob Phalen | — | Nay |
| Bruce "Butch" Gillespie | — | Yea |
| Carl Glimm | — | Nay |
| Christopher Pope | — | Nay |
| Cora Neumann | — | Nay |
| Daniel Emrich | — | Nay |
| Daniel Zolnikov | — | Yea |
| Dave Fern | — | Yea |
| Denise Hayman | — | Nay |
| Denley Loge | — | Yea |
| Dennis Lenz | — | Nay |
| Derek Harvey | — | Yea |
| Ellie Boldman | — | Yea |
| Emma Kerr-Carpenter | — | Yea |
| Forrest Mandeville | — | Yea |
| Gayle Lammers | — | Yea |
| Greg Hertz | — | Yea |
| Gregg Hunter | — | Yea |
| Jacinda Morigeau | — | Yea |
| Janet Ellis | — | Yea |
| Jason Ellsworth | — | Yea |
| Jeremy Trebas | — | Yea |
| John Esp | — | Nay |
| John Fuller | — | Nay |
| Jonathan Windy Boy | — | Nay |
| Josh Kassmier | — | Yea |
| Kenneth Bogner | — | Yea |
| Laura Smith | — | Nay |
| Mark Noland | — | Yea |
| Mary Ann Dunwell | — | Nay |
| Matt Regier | — | Nay |
| Mike Cuffe | — | Yea |
| Mike Yakawich | — | Yea |
| Pat Flowers | — | Yea |
| Russ Tempel | — | Yea |
| Sara Novak | — | Yea |
| Shane Morigeau | — | Yea |
| Shelley Vance | — | Yea |
| Sue Vinton | — | Nay |
| Susan Webber | — | Yea |
| Theresa Manzella | — | Nay |
| Tom McGillvray | — | Nay |
| Tony Tezak | — | Nay |
| Vince Ricci | — | Nay |
| Wendy McKamey | — | Yea |
| Willis Curdy | — | Nay |
| Wylie Galt | — | Yea |
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Unaffiliated | 26 | 24 | 0 | 0 |
| Total | 26 | 24 | 0 | 0 |
| % of votes cast | 52% | 48% | 0% | 0% |
How each member voted (50)
| Member | Party | Vote |
|---|---|---|
| Andrea Olsen | — | Nay |
| Barry Usher | — | Nay |
| Becky Beard | — | Nay |
| Bob Phalen | — | Nay |
| Bruce "Butch" Gillespie | — | Yea |
| Carl Glimm | — | Nay |
| Christopher Pope | — | Nay |
| Cora Neumann | — | Yea |
| Daniel Emrich | — | Nay |
| Daniel Zolnikov | — | Yea |
| Dave Fern | — | Yea |
| Denise Hayman | — | Nay |
| Denley Loge | — | Yea |
| Dennis Lenz | — | Nay |
| Derek Harvey | — | Yea |
| Ellie Boldman | — | Yea |
| Emma Kerr-Carpenter | — | Yea |
| Forrest Mandeville | — | Yea |
| Gayle Lammers | — | Yea |
| Greg Hertz | — | Yea |
| Gregg Hunter | — | Yea |
| Jacinda Morigeau | — | Nay |
| Janet Ellis | — | Nay |
| Jason Ellsworth | — | Yea |
| Jeremy Trebas | — | Yea |
| John Esp | — | Nay |
| John Fuller | — | Nay |
| Jonathan Windy Boy | — | Nay |
| Josh Kassmier | — | Yea |
| Kenneth Bogner | — | Yea |
| Laura Smith | — | Nay |
| Mark Noland | — | Nay |
| Mary Ann Dunwell | — | Nay |
| Matt Regier | — | Nay |
| Mike Cuffe | — | Nay |
| Mike Yakawich | — | Yea |
| Pat Flowers | — | Yea |
| Russ Tempel | — | Yea |
| Sara Novak | — | Yea |
| Shane Morigeau | — | Yea |
| Shelley Vance | — | Yea |
| Sue Vinton | — | Nay |
| Susan Webber | — | Nay |
| Theresa Manzella | — | Nay |
| Tom McGillvray | — | Nay |
| Tony Tezak | — | Nay |
| Vince Ricci | — | Yea |
| Wendy McKamey | — | Yea |
| Willis Curdy | — | Yea |
| Wylie Galt | — | Yea |
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Unaffiliated | 49 | 48 | 0 | 3 |
| Total | 49 | 48 | 0 | 3 |
| % of votes cast | 49% | 48% | 0% | 3% |
How each member voted (100)
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Unaffiliated | 50 | 48 | 0 | 2 |
| Total | 50 | 48 | 0 | 2 |
| % of votes cast | 50% | 48% | 0% | 2% |
How each member voted (100)
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Unaffiliated | 77 | 22 | 0 | 1 |
| Total | 77 | 22 | 0 | 1 |
| % of votes cast | 77% | 22% | 0% | 1% |
How each member voted (100)
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Unaffiliated | 57 | 43 | 0 | 0 |
| Total | 57 | 43 | 0 | 0 |
| % of votes cast | 57% | 43% | 0% | 0% |
How each member voted (100)
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Unaffiliated | 39 | 9 | 0 | 2 |
| Total | 39 | 9 | 0 | 2 |
| % of votes cast | 78% | 18% | 0% | 4% |
How each member voted (50)
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Unaffiliated | 41 | 9 | 0 | 0 |
| Total | 41 | 9 | 0 | 0 |
| % of votes cast | 82% | 18% | 0% | 0% |
How each member voted (50)
| Member | Party | Vote |
|---|---|---|
| Andrea Olsen | — | Yea |
| Barry Usher | — | Yea |
| Becky Beard | — | Yea |
| Bob Phalen | — | Nay |
| Bruce "Butch" Gillespie | — | Yea |
| Carl Glimm | — | Nay |
| Christopher Pope | — | Yea |
| Cora Neumann | — | Yea |
| Daniel Emrich | — | Yea |
| Daniel Zolnikov | — | Yea |
| Dave Fern | — | Yea |
| Denise Hayman | — | Yea |
| Denley Loge | — | Yea |
| Dennis Lenz | — | Nay |
| Derek Harvey | — | Yea |
| Ellie Boldman | — | Yea |
| Emma Kerr-Carpenter | — | Yea |
| Forrest Mandeville | — | Yea |
| Gayle Lammers | — | Yea |
| Greg Hertz | — | Yea |
| Gregg Hunter | — | Yea |
| Jacinda Morigeau | — | Yea |
| Janet Ellis | — | Yea |
| Jason Ellsworth | — | Yea |
| Jeremy Trebas | — | Yea |
| John Esp | — | Nay |
| John Fuller | — | Nay |
| Jonathan Windy Boy | — | Nay |
| Josh Kassmier | — | Yea |
| Kenneth Bogner | — | Yea |
| Laura Smith | — | Yea |
| Mark Noland | — | Yea |
| Mary Ann Dunwell | — | Yea |
| Matt Regier | — | Yea |
| Mike Cuffe | — | Yea |
| Mike Yakawich | — | Yea |
| Pat Flowers | — | Yea |
| Russ Tempel | — | Yea |
| Sara Novak | — | Yea |
| Shane Morigeau | — | Yea |
| Shelley Vance | — | Yea |
| Sue Vinton | — | Yea |
| Susan Webber | — | Yea |
| Theresa Manzella | — | Nay |
| Tom McGillvray | — | Nay |
| Tony Tezak | — | Yea |
| Vince Ricci | — | Nay |
| Wendy McKamey | — | Yea |
| Willis Curdy | — | Yea |
| Wylie Galt | — | Yea |
Subjects
Frequently asked questions
- What does SB 535 do?
- Revise laws related to experimental treatments
- Who sponsors SB 535?
- SB 535 is sponsored by Legislator #48.
- What is the current status of SB 535?
- This bill has been enacted into law. Introduced November 04, 2024. Enacted.
- Where can I track SB 535?
- Track SB 535 free on One Click Politics — get push/email alerts when it moves.
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