There are only two sexes, and every individual is either male or female. The term "sex" is objective and fixed. Individuals with differences in sex development, also known as "DSDs" or "intersex conditions," are not a third sex.

The following words, whenever they appear in this code, have the following meanings [...]:

(1) BOY. A human male who has not yet reached adulthood. (2) FATHER. The male parent of a child or children. (3) FEMALE. When used in reference to a natural person, an individual who has, had, will have, or would have, but for a developmental anomaly, genetic anomaly, or accident, the reproductive system that at some point produces ova. (4) GIRL. A human female who has not yet reached adulthood. (6) MALE. When used in reference to a natural person, an individual who has, had, will have, or would have, but for a developmental anomaly, genetic anomaly, or accident, the reproductive system that at some point produces sperm. (7) MAN. An adult human of the male sex. (9) MOTHER. The female parent of a child or children. (10) PERSON. Includes an individual, corporation, partnership, company, or other business entity.

(14) SEX. When the term is used to classify or describe a natural person, the state of being male or female as observed or clinically verified at birth.

(18) WOMAN. An adult human of the female sex.