Relating to the definition and use of the terms "male" and "female" for purposes of certain government documents.

HB 4001 defines "male" and "female" biologically for Texas state government documents, requiring that all state forms, surveys, and notices requesting sex information use only two categories based on biological sex at birth. The bill specifies that "female" means an individual with a reproductive system developed to produce ova, and "male" means one with a system developed to fertilize ova. It applies to all Texas state government entities when collecting or reporting sex-based data, such as in health services, ID applications, or educational programs. The law takes effect September 1, 2025, and mandates that government materials may not reference more than two sex categories for such purposes.