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Bills · 2025-2026 Regular Session

SB 405

Vetoed Official bill text Atom feed

Relating to: a civil cause of action for a minor injured by a gender transition procedure.

Court — Procedure Damage personal injury Medical service Mental health Physician Youth

  1. Introduced, completed
  2. Passes Senate, completed
  3. Passes Assembly, 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 establishes a civil cause of action against a health care provider who performs a gender transition procedure, as defined in the bill, on an individual who is under 18 years of age and who is injured, including any physical, psychological, emotional, or physiological injury, by the gender transition procedure or related treatment or the aftereffects of the gender transition procedure or related treatment. Under the bill, such an action must be commenced before the individual attains the age of 33 years.

The bill provides that it is a defense to an action under the bill if all of the following occur before a health care provider performs a gender transition procedure on an individual who is under 18 years of age:

1. The health care provider documents the individual’s perceived gender or perceived sex for at least two continuous years, and the individual’s perceived gender or perceived sex is invariably inconsistent with the individual’s biological sex throughout the two-year period.

2. To the extent that the individual suffers from a mental health concern, at least one mental health professional and one other health care provider certifies in writing that the gender transition procedure is the only way to treat the mental health concern.

3. At least one mental health professional and one other health care provider certifies in writing that the individual suffers from no other mental health concerns.

4. The health care provider receives the voluntary and informed consent of the individual and the individual’s parent or legal guardian by providing them, both orally and in writing, with a notice, the contents are which are prescribed in the bill, at least 30 days before the first treatment of the gender transition procedure and during every subsequent medical visit for treatment during the following six months.

Sponsors

Introduced by: Bradley (R) , Hutton (R) , Kapenga (R) , Nass (R)

17 cosponsors

Allen (R) , Behnke (R) , Brill (R) , Dittrich (R) , Green (R) , Gustafson (R) , Knodl (R) , Kreibich (R) , Maxey (R) , Murphy (R) , Mursau (R) , Nedweski (R) , O'Connor (R) , Penterman (R) , Piwowarczyk (R) , Steffen (R) , Wichgers (R)

Registered lobbying interests · 17

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

Senate: Report adoption of Senate Amendment 1 recommended by Committee on Health, Ayes 3, Noes 2

Passed 3–2 Dec 12, 2025 official source full page

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

Senate: Report passage as amended recommended by Committee on Health, Ayes 3, Noes 2

Passed 3–2 Dec 12, 2025 official source full page

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

Assembly: CONCURRENCE

Passed 53–45 Feb 12, 2026 official source full page

Aye · 53

Nay · 45

Not voting · 1

Full history

  1. Aug 28, 2025 · Senate

    Introduced by Senators Hutton, Kapenga, Bradley and Nass; cosponsored by Representatives Nedweski, Steffen, Maxey, Brill, Green, Gustafson, O'Connor, Kreibich, Piwowarczyk, Penterman, Mursau, Allen, Dittrich, Knodl, Murphy, Wichgers and Behnke

  2. Aug 28, 2025 · Senate

    Read first time and referred to Committee on Health

  3. Nov 5, 2025 · Senate

    Public hearing held

  4. Dec 10, 2025 · Senate

    Senate Amendment 1 offered by Senator Hutton

  5. Dec 12, 2025 · Senate

    Executive action taken

  6. Dec 12, 2025 · Senate

    Report adoption of Senate Amendment 1 recommended by Committee on Health, Ayes 3, Noes 2

  7. Dec 12, 2025 · Senate

    Report passage as amended recommended by Committee on Health, Ayes 3, Noes 2

  8. Dec 12, 2025 · Senate

    Available for scheduling

  9. Feb 9, 2026 · Senate

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

  10. Feb 11, 2026 · Senate

    Senate Amendment 1 adopted

  11. Feb 11, 2026 · Senate

    Ordered to a third reading

  12. Feb 11, 2026 · Senate

    Rules suspended to give bill its third reading

  13. Feb 11, 2026 · Senate

    Read a third time and passed

  14. Feb 11, 2026 · Senate

    Ordered immediately messaged

  15. Feb 11, 2026 · Senate

    Read a second time

  16. Feb 12, 2026 · Assembly

    Received from Senate

  17. Feb 12, 2026 · Assembly

    Read

  18. Feb 12, 2026 · Assembly

    Rules suspended to withdraw from Senate message and take up

  19. Feb 12, 2026 · Assembly

    Read a second time

  20. Feb 12, 2026 · Assembly

    Ordered to a third reading

  21. Feb 12, 2026 · Assembly

    Rules suspended

  22. Feb 12, 2026 · Assembly

    Read a third time and concurred in, Ayes 53, Noes 45

  23. Feb 12, 2026 · Assembly

    Ordered immediately messaged

  24. Feb 13, 2026 · Senate

    Received from Assembly concurred in

  25. Feb 20, 2026 · Senate

    Report correctly enrolled

  26. Mar 26, 2026 · Senate

    Presented to the Governor on 3-26-2026

  27. Mar 31, 2026 · Senate

    Report vetoed by the Governor on 3-31-2026

  28. May 12, 2026 · Senate

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

  29. May 13, 2026 · Senate

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