summary
Introduced
06/06/2025
06/06/2025
In Committee
01/15/2026
01/15/2026
Crossed Over
Passed
Dead
Introduced Session
Potential new amendment
2025-2026 Regular Session
Bill Summary
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, Xbiological sexY means the biological state of being male or female based on sex chromosomes.
AI Summary
This bill seeks to restrict changes to the sex designation on birth certificates in Wisconsin by defining "biological sex" as the biological state of being male or female based solely on sex chromosomes, without considering psychological, chosen, or subjective experiences of gender. The bill prohibits any person, including courts, from changing an individual's sex on a birth record to anything other than their biological sex at birth. Specifically, the bill removes existing provisions that allowed for sex changes on birth records due to surgical procedures and eliminates language that previously permitted name and sex changes. The legislation effectively prevents transgender individuals from obtaining birth certificates that reflect their gender identity, instead mandating that birth records must permanently display the sex assigned at birth based on chromosomal makeup. The bill's provisions will apply to court orders and petitions filed on or after the bill's effective date, representing a significant legal restriction on how birth records can be modified in Wisconsin.
Committee Categories
Justice
Sponsors (18)
Scott Allen (R)*,
Elijah Behnke (R)*,
Lindee Brill (R)*,
Calvin Callahan (R)*,
Barbara Dittrich (R)*,
Cindi Duchow (R)*,
Joy Goeben (R)*,
Nate Gustafson (R)*,
Dave Maxey (R)*,
Dave Murphy (R)*,
Amanda Nedweski (R)*,
William Penterman (R)*,
Jim Piwowarczyk (R)*,
David Steffen (R)*,
Chuck Wichgers (R)*,
Steve Nass (R),
Romaine Quinn (R),
Van Wanggaard (R),
Last Action
Referred to committee on Rules (on 01/15/2026)
Official Document
bill text
bill summary
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bill summary
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bill summary
| Document Type | Source Location |
|---|---|
| State Bill Page | https://docs.legis.wisconsin.gov/2025/proposals/reg/asm/bill/ab311 |
| Analysis - LC Amendment Memo | https://docs.legis.wisconsin.gov/document/lcamendmentmemos/2025/REG/AB311.pdf |
| AB311 ROCP for Committee on Judiciary | https://docs.legis.wisconsin.gov/2025/related/records/assembly/judiciary/1964600.pdf |
| Assembly Amendment 1 | https://docs.legis.wisconsin.gov/document/amends/2025/REG/AB311-AA1.pdf |
| BillText | https://docs.legis.wisconsin.gov/document/proposaltext/2025/REG/AB311.pdf |
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