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Bills · 2025-2026 Regular Session

AB 104

Vetoed Official bill text Atom feed

Relating to: prohibiting gender transition medical intervention for individuals under 18 years of age.

Medical examining board Medical service Nurses Nursing homes and adult care Physician Youth

  1. Introduced, completed
  2. Passes Assembly, completed
  3. Passes Senate, stopped here
  4. Governor signs, not reached
  5. Law, not reached

Unfamiliar terms? Glossary

What this bill does

Plain-language analysis by the nonpartisan Legislative Reference Bureau

This bill prohibits health care providers from engaging in, causing the engagement in, or making referrals for, certain medical intervention practices upon an individual under 18 years of age if done for the purpose of changing the minor’s body to correspond to a sex that is discordant with the minor’s biological sex. The prohibitions under the bill do not apply to any of the following: 1) a health care provider providing a service in accordance with a good faith medical decision of a parent or guardian of a minor born with a medically verifiable genetic disorder of sex development; 2) the treatment of any infection, injury, disease, or disorder that has been caused by or exacerbated by the performance of a gender transition medical procedure, whether or not that procedure was performed in accordance with state and federal law; or 3) any procedure undertaken because the minor suffers from a physical disorder, physical injury, or physical illness that would, as certified by a physician, place the minor in imminent danger of death or impairment of a major bodily function unless surgery is performed.

Under the bill, the Board of Nursing, the Medical Examining Board, and the Physician Assistant Affiliated Credentialing Board are required to investigate any allegation that any person licensed or certified by the respective boards has violated any of the prohibitions on engaging in, causing the engagement in, or making certain referrals for the medical intervention practices described in the bill. Upon a finding by the Board of Nursing, the Medical Examining Board, or the Physician Assistant Affiliated Credentialing Board that the holder of a license or certificate has violated any of these prohibitions, the bill requires the Board of Nursing, the Medical Examining Board, or the Physician Affiliated Credentialing Board to revoke that person’s license or certificate.

Sponsors

Introduced by: Allen (R) , B. Jacobson (R) , Behnke (R) , Brill (R) , Brooks (R) , Callahan (R) , Dittrich (R) , Goeben (R) , Green (R) , Gundrum (R) , Hurd (R) , Knodl (R) , Kreibich (R) , Maxey (R) , Murphy (R) , Mursau (R) , Nedweski (R) , Neylon (R) , O'Connor (R) , Penterman (R) , Steffen (R) , Tucker (R) , Tusler (R) , Vos (R) , Wichgers (R)

6 cosponsors

Kapenga (R) , Nass (R) , Piwowarczyk (R) , Quinn (R) , Tomczyk (R) , Wimberger (R)

Registered lobbying interests · 25

Organizations that registered lobbying activity on this bill with the Wisconsin Ethics Commission. Registration means interest, not a position for or against. Official record

Votes

Assembly: Report passage recommended by Committee on Health, Aging and Long-Term Care, Ayes 10, Noes 5

Passed 10–5 Mar 13, 2025 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Assembly: PASSAGE

Passed 50–43 Mar 20, 2025 official source full page

Aye · 50

Nay · 43

Senate: Report concurrence recommended by Committee on Government Operations, Labor and Economic Development, Ayes 3, Noes 2

Passed 3–2 Jan 16, 2026 official source full page

No individual roll call was recorded for this vote. Committee votes and some older sessions record totals only.

Full history

  1. Mar 5, 2025 · Assembly

    Introduced by Representatives Allen, Vos, Behnke, Brill, Brooks, Callahan, Dittrich, Goeben, Green, Gundrum, Hurd, B. Jacobson, Knodl, Kreibich, Maxey, Murphy, Mursau, Nedweski, Neylon, O'Connor, Penterman, Steffen, Tucker, Tusler and Wichgers; cosponsored by Senators Tomczyk, Kapenga, Nass, Quinn and Wimberger

  2. Mar 5, 2025 · Assembly

    Read first time and referred to Committee on Health, Aging and Long-Term Care

  3. Mar 6, 2025 · Assembly

    Representative Piwowarczyk added as a coauthor

  4. Mar 12, 2025 · Assembly

    Public hearing held

  5. Mar 13, 2025 · Assembly

    Executive action taken

  6. Mar 13, 2025 · Assembly

    Report passage recommended by Committee on Health, Aging and Long-Term Care, Ayes 10, Noes 5

  7. Mar 13, 2025 · Assembly

    Referred to committee on Rules

  8. Mar 18, 2025 · Assembly

    Placed on calendar 3-20-2025 by Committee on Rules

  9. Mar 20, 2025 · Assembly

    Rules suspended

  10. Mar 20, 2025 · Assembly

    Read a third time and passed, Ayes 50, Noes 43

  11. Mar 20, 2025 · Assembly

    Ordered immediately messaged

  12. Mar 20, 2025 · Senate

    Received from Assembly

  13. Mar 20, 2025 · Assembly

    Read a second time

  14. Mar 20, 2025 · Assembly

    Ordered to a third reading

  15. Mar 27, 2025 · Senate

    Read first time and referred to committee on Government Operations, Labor and Economic Development

  16. Jan 14, 2026 · Senate

    Public hearing held

  17. Jan 16, 2026 · Senate

    Executive action taken

  18. Jan 16, 2026 · Senate

    Report concurrence recommended by Committee on Government Operations, Labor and Economic Development, Ayes 3, Noes 2

  19. Jan 16, 2026 · Senate

    Available for scheduling

  20. Feb 9, 2026 · Senate

    Placed on calendar 2-11-2026 pursuant to Senate Rule 18(1)

  21. Feb 11, 2026 · Senate

    Read a second time

  22. Feb 11, 2026 · Senate

    Ordered to a third reading

  23. Feb 11, 2026 · Senate

    Rules suspended to give bill its third reading

  24. Feb 11, 2026 · Senate

    Read a third time and concurred in, Ayes 18, Noes 15

  25. Feb 11, 2026 · Senate

    Ordered immediately messaged

  26. Feb 12, 2026 · Assembly

    Received from Senate concurred in

  27. Feb 16, 2026 · Assembly

    LRB correction

  28. Feb 16, 2026 · Assembly

    Report correctly enrolled on 2-16-2026

  29. Mar 26, 2026 · Assembly

    Presented to the Governor on 3-26-2026

  30. Mar 31, 2026 · Assembly

    Report vetoed by the Governor on 3-31-2026

  31. May 12, 2026 · Assembly

    Placed on calendar 5-12-2026 pursuant to Joint Rule 82 (2)(a)

  32. May 13, 2026 · Assembly

    Failed to pass notwithstanding the objections of the Governor pursuant to Joint Rule 82