Bill > HB157

This bill modifies how gender designations are handled on state-issued identity documents in Missouri by requiring that such documents reflect a person's biological sex as determined by sex chromosomes, rather than allowing self-identification or based on medical procedures. Specifically, the bill mandates that state agencies can only assign or amend gender designations using evidence of a person's biological sex, and any previously issued documents with incorrect gender designations must be revoked and reissued. The bill defines key terms such as "biological sex" and "identity document" and provides exceptions for individuals with specific medically verifiable disorders of sex development, such as those with ambiguous biological sex characteristics or atypical chromosome structures. The bill also removes a previous provision in existing law that allowed birth certificates to be amended to reflect a change in sex following surgical procedures. This legislation appears to be part of a broader effort to restrict gender designation changes on official state documents and enforce a strict biological definition of sex.

https://house.mo.gov/Bill.aspx?bill=HB157&year=2025&code=R