Montana SB437

"Female" means a member of the human species who, under normal development, has XX chromosomes and produces or would produce relatively large, relatively immobile gametes, or eggs, during her life cycle and has a reproductive and endocrine system oriented around the production of those gametes. An individual who would otherwise fall within this definition, but for a biological or genetic condition, is female. (b) "Male" means a member of the human species who, under normal development, has XY chromosomes and produces or would produce small, mobile gametes, or sperm, during his life cycle and has a reproductive and endocrine system oriented around the production of those gametes. An individual who would otherwise fall within this definition, but for a biological or genetic condition, is male.

Designation of athletic teams. (1) Interscholastic, intercollegiate, intramural, or club athletic teams or sports [...] designated for females, women, or girls may not be open to students of the male sex.

The following marriages are prohibited: [...] a marriage between persons of the same sex.

Parental involvement in education. [...] (f) procedures by which a parent shall provide written consent before the parent's child uses a pronoun that does not align with the child's sex [...] If a parent provides written consent under this subsection (1)(f), a person may not be compelled to use pronouns that do not align with the child's sex.