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

SB 312 prohibits changing the sex marker on a birth certificate to reflect a person's gender identity. It defines "biological sex" as the sex assigned at birth based on chromosomes, and bans courts from ordering such changes - even after gender-affirming surgery. The bill affects transgender individuals seeking to update their birth certificates to match their gender identity. Key provisions include creating new statutes (69.115, 69.12 (2m)) that prevent sex marker changes and amending existing laws to remove court authority for such updates. The bill does not affect name changes on birth records.