The Defining Male and Female Act of 2024 would establish a federal legal definition of sex based exclusively on biological reproductive capacity, defining males as individuals with reproductive systems that produce sperm and females as those with reproductive systems that produce eggs. The bill applies these definitions across all federal laws, regulations, and agency interpretations, and clarifies that terms like "woman," "man," "girl," and "boy" refer to biological sex rather than gender identity. The legislation specifies that gender identity is distinct from and does not determine sex or gender under federal law, and includes findings asserting that separate facilities or sports leagues based on physical differences between sexes do not constitute unequal treatment. The bill contains no new funding or implementation timelines, as it primarily establishes definitional standards for existing federal statutes and administrative actions. The measure directly affects how federal agencies interpret and apply laws related to sex and gender across healthcare, education, civil rights, and other areas.
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