HB 4066 — Education: athletics; single-sex sports teams; require. Amends 1976 PA 451 (MCL 380.1 - 380.1852) by adding sec. 1290.
Last action — REFERRED TO COMMITTEE ON GOVERNMENT OPERATIONS
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✓Introduced
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✓In Committee
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3Passed House
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4Passed Senate
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5To Executive
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6Enacted
This bill has passed the House. Introduced May 29, 2025. It now moves to the second chamber.
Next likely step: consideration and a floor vote in the Senate.
Odds of enactment
Moderate chanceBased on the sponsor, cosponsors, and committee posture, this bill has a moderate 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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Passed House
Current position in the legislative process.
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1 sponsor
1 primary, 0 co-sponsors signed on.
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Single-party support
Sponsorship is currently within one party (1 R).
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Cleared a recorded vote
Passed 2 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
Education: athletics; single-sex sports teams; require. Amends 1976 PA 451 (MCL 380.1 - 380.1852) by adding sec. 1290.
Bill Text
What changed in the latest version
4 added · 3 removedPlain-language change summary
The latest version of HB 4066 replaces certain lines from the previous draft with new language, which clarifies how the bill will be implemented. This is important because it helps ensure that the provisions of the bill are more easily understood and followed, potentially leading to smoother execution. The changes reflect input from discussions and stakeholders to improve the effectiveness of the legislation.
HB-4066, As Passed House, May 22, 2025 SUBSTITUTE FOR HOUSE BILL NO.
(2) A school district, intermediate school district, or public CRM H00961'25 (H-1)(H-1)_HB4066_APH_1 touscdtrvawk 1 school academy to which subsection (1) applies shall not knowingly allow individuals of the male sex to participate in any interscholastic athletic team or sport designated for participants of only the female sex.
CRM H00961'25 (H-1)(H-1)_HB4066_APH_1 touscdtrvawk 1 (7) A school district, intermediate school district, or public school academy that suffers any direct or indirect harm as a result of a violation of subsection (4) has a private cause of action for injunctive relief, damages, and any other relief available against the agency, political subdivision, accrediting organization, or interscholastic athletic association that violated subsection (4).
Final Page CRM H00961'25 (H-1)(H-1)_HB4066_APH_1 touscdtrvawk
View plain text versions (4)
- As Passed by the House View text Current pdf
- Substitute Substitute (H-1) pdf
- Substitute Substitute (H-1) - 2 pdf
- Introduced House Introduced Bill pdf
Action History
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REFERRED TO COMMITTEE ON GOVERNMENT OPERATIONS
Sponsors
- Jason Woolford · Primary
Sponsorship breakdown
Export CSV (upgrade) →1 sponsors · 0 co-sponsors · 146 not signed on · 46 voted No
Sponsors (1)
- Jason Woolford Republican
Co-sponsors (0)
None.
Not signed on (146)
146 members have not signed on to this bill.
Show all 146 →"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 |
|---|---|---|---|---|
| Democrat | 1 | 45 | 0 | 0 |
| Republican | 57 | 0 | 0 | 0 |
| Unaffiliated | 0 | 1 | 0 | 0 |
| Total | 58 | 46 | 0 | 0 |
| % of votes cast | 56% | 44% | 0% | 0% |
How each member voted (104)
| Member | Party | Vote |
|---|---|---|
| O’Neal | — | Nay |
| Angela Witwer | Democrat | Nay |
| Betsy Coffia | Democrat | Nay |
| Brenda Carter | Democrat | Nay |
| Carol Glanville | Democrat | Nay |
| Carrie Rheingans | Democrat | Nay |
| Chedrick Greene | Democrat | Yea |
| Cynthia Neeley | Democrat | Nay |
| Denise Mentzer | Democrat | Nay |
| Donavan McKinney | Democrat | Nay |
| Dylan Wegela | Democrat | Nay |
| Emily Dievendorf | Democrat | Nay |
| Erin Byrnes | Democrat | Nay |
| Helena Scott | Democrat | Nay |
| Jason M Hoskins | Democrat | Nay |
| Jason Morgan | Democrat | Nay |
| Jasper Martus | Democrat | Nay |
| Jennifer Conlin | Democrat | Nay |
| Jimmie Wilson Jr | Democrat | Nay |
| Joey Andrews | Democrat | Nay |
| John Fitzgerald | Democrat | Nay |
| Joseph Tate | Democrat | Nay |
| Julie Brixie | Democrat | Nay |
| Julie M. Rogers | Democrat | Nay |
| Kara Hope | Democrat | Nay |
| Kelly A Breen | Democrat | Nay |
| Kristian Grant | Democrat | Nay |
| Laurie Pohutsky | Democrat | Nay |
| Mai Xiong | Democrat | Nay |
| Matt Koleszar | Democrat | Nay |
| Matt Longjohn | Democrat | Nay |
| Mike McFall | Democrat | Nay |
| Morgan Foreman | Democrat | Nay |
| Natalie Price | Democrat | Nay |
| Noah Arbit | Democrat | Nay |
| Penelope Tsernoglou | Democrat | Nay |
| Phil Skaggs | Democrat | Nay |
| Ranjeev Puri | Democrat | Nay |
| Reggie Miller | Democrat | Nay |
| Regina Weiss | Democrat | Nay |
| Samantha Steckloff | Democrat | Nay |
| Sharon MacDonell | Democrat | Nay |
| Stephanie A Young | Democrat | Nay |
| Stephen Wooden | Democrat | Nay |
| Tyrone Carter | Democrat | Nay |
| Veronica Paiz | Democrat | Nay |
| Will Snyder | Democrat | Nay |
| Alicia St. Germaine | Republican | Yea |
| Angela Rigas | Republican | Yea |
| Ann M. Bollin | Republican | Yea |
| Bill Schuette | Republican | Yea |
| Brad Paquette | Republican | Yea |
| Bradley Slagh | Republican | Yea |
| Brian BeGole | Republican | Yea |
| Bryan Posthumus | Republican | Yea |
| Cameron Cavitt | Republican | Yea |
| Curtis S VanderWall | Republican | Yea |
| David Prestin | Republican | Yea |
| David W. Martin | Republican | Yea |
| Donni Steele | Republican | Yea |
| Douglas C Wozniak | Republican | Yea |
| Gina Johnsen | Republican | Yea |
| Greg VanWoerkom | Republican | Yea |
| Gregory Alexander | Republican | Yea |
| Gregory Markkanen | Republican | Yea |
| James DeSana | Republican | Yea |
| Jamie Thompson | Republican | Yea |
| Jason Woolford | Republican | Yea |
| Jay DeBoyer | Republican | Yea |
| Jennifer Wortz | Republican | Yea |
| Jerry Neyer | Republican | Yea |
| John R. Roth | Republican | Yea |
| Joseph A. Aragona | Republican | Yea |
| Joseph Fox | Republican | Yea |
| Joseph Pavlov | Republican | Yea |
| Josh Schriver | Republican | Yea |
| Karl Bohnak | Republican | Yea |
| Kathy Schmaltz | Republican | Yea |
| Ken Borton | Republican | Yea |
| Luke Meerman | Republican | Yea |
| Mark A Tisdel | Republican | Yea |
| Matt Hall | Republican | Yea |
| Matt Maddock | Republican | Yea |
| Matthew Bierlein | Republican | Yea |
| Mike Harris | Republican | Yea |
| Mike Hoadley | Republican | Yea |
| Mike Mueller | Republican | Yea |
| Nancy DeBoer | Republican | Yea |
| Nancy Jenkins-Arno | Republican | Yea |
| Parker Fairbairn | Republican | Yea |
| Pauline Wendzel | Republican | Yea |
| Phil Green | Republican | Yea |
| Rachelle Smit | Republican | Yea |
| Rick Outman | Republican | Yea |
| Ron Robinson | Republican | Yea |
| Rylee Linting | Republican | Yea |
| Sarah Lightner | Republican | Yea |
| Steve Carra | Republican | Yea |
| Steve Frisbie | Republican | Yea |
| Thomas Kuhn | Republican | Yea |
| Tim Kelly | Republican | Yea |
| Timothy Beson | Republican | Yea |
| Tom Kunse | Republican | Yea |
| William Bruck | Republican | Yea |
| Party | Yea | Nay | Present | Not Voting |
|---|---|---|---|---|
| Republican | 57 | 0 | 0 | 0 |
| Unaffiliated | 1 | 0 | 0 | 0 |
| Democrat | 0 | 46 | 0 | 0 |
| Total | 58 | 46 | 0 | 0 |
| % of votes cast | 56% | 44% | 0% | 0% |
How each member voted (104)
| Member | Party | Vote |
|---|---|---|
| St. Germaine | — | Yea |
| Amos O'Neal | Democrat | Nay |
| Angela Witwer | Democrat | Nay |
| Betsy Coffia | Democrat | Nay |
| Brenda Carter | Democrat | Nay |
| Carol Glanville | Democrat | Nay |
| Carrie Rheingans | Democrat | Nay |
| Cynthia Neeley | Democrat | Nay |
| Denise Mentzer | Democrat | Nay |
| Donavan McKinney | Democrat | Nay |
| Dylan Wegela | Democrat | Nay |
| Emily Dievendorf | Democrat | Nay |
| Erin Byrnes | Democrat | Nay |
| Helena Scott | Democrat | Nay |
| Jason M Hoskins | Democrat | Nay |
| Jason Morgan | Democrat | Nay |
| Jasper Martus | Democrat | Nay |
| Jennifer Conlin | Democrat | Nay |
| Jimmie Wilson Jr | Democrat | Nay |
| Joey Andrews | Democrat | Nay |
| John Fitzgerald | Democrat | Nay |
| Joseph Tate | Democrat | Nay |
| Julie Brixie | Democrat | Nay |
| Julie M. Rogers | Democrat | Nay |
| Kara Hope | Democrat | Nay |
| Kelly A Breen | Democrat | Nay |
| Kristian Grant | Democrat | Nay |
| Laurie Pohutsky | Democrat | Nay |
| Mai Xiong | Democrat | Nay |
| Matt Koleszar | Democrat | Nay |
| Matt Longjohn | Democrat | Nay |
| Mike McFall | Democrat | Nay |
| Morgan Foreman | Democrat | Nay |
| Natalie Price | Democrat | Nay |
| Noah Arbit | Democrat | Nay |
| Penelope Tsernoglou | Democrat | Nay |
| Phil Skaggs | Democrat | Nay |
| Ranjeev Puri | Democrat | Nay |
| Reggie Miller | Democrat | Nay |
| Regina Weiss | Democrat | Nay |
| Samantha Steckloff | Democrat | Nay |
| Sharon MacDonell | Democrat | Nay |
| Stephanie A Young | Democrat | Nay |
| Stephen Wooden | Democrat | Nay |
| Tyrone Carter | Democrat | Nay |
| Veronica Paiz | Democrat | Nay |
| Will Snyder | Democrat | Nay |
| Angela Rigas | Republican | Yea |
| Ann M. Bollin | Republican | Yea |
| Bill Schuette | Republican | Yea |
| Brad Paquette | Republican | Yea |
| Bradley Slagh | Republican | Yea |
| Brian BeGole | Republican | Yea |
| Bryan Posthumus | Republican | Yea |
| Cameron Cavitt | Republican | Yea |
| Curtis S VanderWall | Republican | Yea |
| David Prestin | Republican | Yea |
| David W. Martin | Republican | Yea |
| Donni Steele | Republican | Yea |
| Douglas C Wozniak | Republican | Yea |
| Gina Johnsen | Republican | Yea |
| Greg VanWoerkom | Republican | Yea |
| Gregory Alexander | Republican | Yea |
| Gregory Markkanen | Republican | Yea |
| Jaime Greene | Republican | Yea |
| James DeSana | Republican | Yea |
| Jamie Thompson | Republican | Yea |
| Jason Woolford | Republican | Yea |
| Jay DeBoyer | Republican | Yea |
| Jennifer Wortz | Republican | Yea |
| Jerry Neyer | Republican | Yea |
| John R. Roth | Republican | Yea |
| Joseph A. Aragona | Republican | Yea |
| Joseph Fox | Republican | Yea |
| Joseph Pavlov | Republican | Yea |
| Josh Schriver | Republican | Yea |
| Karl Bohnak | Republican | Yea |
| Kathy Schmaltz | Republican | Yea |
| Ken Borton | Republican | Yea |
| Luke Meerman | Republican | Yea |
| Mark A Tisdel | Republican | Yea |
| Matt Hall | Republican | Yea |
| Matt Maddock | Republican | Yea |
| Matthew Bierlein | Republican | Yea |
| Mike Harris | Republican | Yea |
| Mike Hoadley | Republican | Yea |
| Mike Mueller | Republican | Yea |
| Nancy DeBoer | Republican | Yea |
| Nancy Jenkins-Arno | Republican | Yea |
| Parker Fairbairn | Republican | Yea |
| Pauline Wendzel | Republican | Yea |
| Phil Green | Republican | Yea |
| Rachelle Smit | Republican | Yea |
| Rick Outman | Republican | Yea |
| Ron Robinson | Republican | Yea |
| Rylee Linting | Republican | Yea |
| Sarah Lightner | Republican | Yea |
| Steve Carra | Republican | Yea |
| Steve Frisbie | Republican | Yea |
| Thomas Kuhn | Republican | Yea |
| Tim Kelly | Republican | Yea |
| Timothy Beson | Republican | Yea |
| Tom Kunse | Republican | Yea |
| William Bruck | Republican | Yea |
Subjects
Frequently asked questions
- What does HB 4066 do?
- Education: athletics; single-sex sports teams; require. Amends 1976 PA 451 (MCL 380.1 - 380.1852) by adding sec. 1290.
- Who sponsors HB 4066?
- HB 4066 is sponsored by Jason Woolford (Republican).
- What is the current status of HB 4066?
- This bill has passed the House. Introduced May 29, 2025. It now moves to the second chamber.
- Where can I track HB 4066?
- Track HB 4066 free on One Click Politics — get push/email alerts when it moves.
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