A bill for an act relating to sex and gender, including those and related terms for purposes of statutory construction, indications of a person’s sex on certain vital records, gender identity under the Iowa civil rights Act, and school curricula related to gender theory.

HF 583 defines "sex" biologically at birth as male or female based on reproductive systems for legal purposes. It requires birth certificates to list the sex assigned at birth (male/female), limits changes to medical documentation, and clarifies that "sex" in anti-discrimination laws refers to biological sex, not gender identity. The bill also specifies that "gender" in legal contexts should not be used as a synonym for gender identity and includes provisions affecting school curricula related to gender theory. These changes directly impact how vital records are maintained, civil rights enforcement, and educational materials in Iowa.