Defining Male and Female Act of 2025

[Congressional Bills 119th Congress]
[From the U.S. Government Publishing Office]
[S. 1147 Introduced in Senate (IS)]

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119th CONGRESS
  1st Session
                                S. 1147

 To establish clear and consistent biological definitions of male and 
                                female.


_______________________________________________________________________


                   IN THE SENATE OF THE UNITED STATES

                             March 26, 2025

 Mr. Marshall (for himself, Mr. Cassidy, Mr. Sheehy, Mrs. Hyde-Smith, 
 and Mr. Ricketts) introduced the following bill; which was read twice 
             and referred to the Committee on the Judiciary

_______________________________________________________________________

                                 A BILL


 
 To establish clear and consistent biological definitions of male and 
                                female.

    Be it enacted by the Senate and House of Representatives of the 
United States of America in Congress assembled,

SECTION 1. SHORT TITLE.

    This Act may be cited as the ``Defining Male and Female Act of 
2025''.

SEC. 2. DEFINITION OF ``SEX'', ``MALE'', ``FEMALE'', AND RELATED TERMS.

    Chapter 1 of title 1, United States Code, is amended by adding at 
the end the following:

``SEC. 9. DEFINITION OF `SEX', `MALE', `FEMALE', AND RELATED TERMS.

    ``In determining the meaning of any Act of Congress, or of any 
ruling, regulation, or interpretation of the various departments and 
Federal agencies of the United States, the term--
            ``(1) `boy' means a minor human male;
            ``(2) `father' means a male parent;
            ``(3) `female', when used to refer to a natural person, 
        means a person belonging, at conception, to the sex 
        characterized by a reproductive system with the biological 
        function of producing eggs (ova);
            ``(4) `gender identity' means an identity that reflects an 
        internal and subjective sense of self, disconnected from 
        biological reality and sex and existing on an indeterminate 
        continuum, and, because such an identity does not provide a 
        meaningful basis for identification for purposes of Federal 
        law, the term shall not be recognized by the Federal Government 
        as a replacement for sex;
            ``(5) `girl' means a minor human female;
            ``(6) `male', when used to refer to a natural person, means 
        a person belonging, at conception, to the biological sex 
        characterized by a reproductive system with the biological 
        function of producing sperm;
            ``(7) `man', except when used as a generic reference to 
        human beings, means an adult human male;
            ``(8) `mother' means a female parent;
            ``(9) `sex', when referring to a natural person's 
        individual's sex, means the person's immutable biological 
        classification as either male or female, as biologically 
        determined and defined by this section; and
            ``(10) `woman' means an adult human female.''.
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