Bill > SB312

This bill seeks to restrict changes to an individual's sex on birth certificates in Wisconsin by defining "biological sex" as the biological state of being female or male based on sex chromosomes, without considering psychological, chosen, or subjective experiences of gender. The bill prohibits any person, including courts, from changing a birth record's sex designation to anything other than the individual's biological sex at birth. Specifically, the legislation removes existing provisions that previously allowed individuals to change their sex on birth records due to surgical sex-change procedures. The bill also modifies language in existing statutes related to birth record amendments, effectively eliminating the possibility of legally changing one's sex on official birth documents. The changes would apply to court orders and petitions issued on the bill's effective date, meaning that existing records would not be retroactively altered. By implementing these restrictions, the bill aims to maintain birth records as permanent documentation of an individual's biological sex as determined by chromosomes at the time of birth.

Government Affairs

https://docs.legis.wisconsin.gov/2025/proposals/reg/sen/bill/sb312