Defining Male and Female Act of 2025

This bill proposes to establish statutory definitions for male , female , and sex that would apply to all Acts of Congress and federal agency rulings, regulations, and interpretations. It defines a female as a person belonging, at conception, to the sex characterized by a reproductive system with the biological function of producing eggs. Conversely, a male is defined as a person belonging, at conception, to the biological sex characterized by a reproductive system with the biological function of producing sperm. The legislation specifies that sex refers to an individual's immutable biological classification as either male or female, as determined at conception. Furthermore, it defines gender identity as an internal and subjective sense of self disconnected from biological reality and sex, explicitly stating that it shall not be recognized by the Federal Government as a replacement for sex for purposes of Federal law.