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Bills · 2025-2026 Regular Session

SB 312

Died at session end Official bill text Atom feed

Relating to: changing an individual’s sex on a birth certificate.

Vital statistics

  1. Introduced, stopped here
  2. Passes Senate, not reached
  3. Passes Assembly, not reached
  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

Current law allows for changes to an individual’s sex on a birth record due to a surgical sex-change procedure or to correct an error on a birth record, subject to certain requirements. Under this bill, an individual’s sex on a birth record may not be changed due to a surgical sex-change procedure. Moreover, the bill prohibits any person from changing an individual’s sex on a birth record to a sex other than the individual’s biological sex. The bill also prohibits a court from ordering a change to an individual’s sex on a birth record to a sex other than the individual’s biological sex. Under the bill, “biological sex” means the biological state of being male or female based on sex chromosomes.

Sponsors

Introduced by: Nass (R) , Quinn (R) , Wanggaard (R)

15 cosponsors

Allen (R) , Behnke (R) , Brill (R) , Callahan (R) , Dittrich (R) , Duchow (R) , Goeben (R) , Gustafson (R) , Maxey (R) , Murphy (R) , Nedweski (R) , Penterman (R) , Piwowarczyk (R) , Steffen (R) , Wichgers (R)

Registered lobbying interests · 5

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

Full history

  1. Jun 4, 2025 · Senate

    Introduced by Senators Nass, Wanggaard and Quinn; cosponsored by Representatives Brill, Maxey, Goeben, Wichgers, Piwowarczyk, Gustafson, Steffen, Penterman, Duchow, Nedweski, Callahan, Murphy, Dittrich, Allen and Behnke

  2. Jun 4, 2025 · Senate

    Read first time and referred to Committee on Licensing, Regulatory Reform, State and Federal Affairs

  3. Sep 22, 2025 · Senate

    Senate Amendment 1 offered by Senator Nass

  4. Mar 23, 2026 · Senate

    Failed to pass pursuant to Senate Joint Resolution 1