Michigan HJRE

"Female" means an individual whose biological reproductive system is developed to produce ova. [...] "Woman" and "girl" mean human females. [...] "Mother" means a parent of the female sex.

"Male" means an individual whose biological reproductive system is developed to fertilize the ova of a female. [...] "Man" and "boy" mean human males. [...] "Father" means a parent of the male sex.

Distinctions between the sexes with respect to athletics, prisons or other detention facilities, domestic violence shelters, rape crisis centers, locker rooms, restrooms, and other areas where biology, safety, or privacy are implicated and result in separate accommodations are substantially related to the important governmental objectives of protecting the health, safety, and privacy of individuals in those circumstances.

Any school district, or public school in that school district, and any agency, department, office, or political subdivision of this state that collects vital statistics for the purpose of complying with antidiscrimination laws or for the purpose of gathering accurate public health, crime, economic, or other data shall identify each individual who is part of the collected dataset as either male or female at birth.