Amendment No. 48 [...] (1) Multi-occupancy public school restrooms and changing facilities shall be designated for use only by members of one sex. Any public school restrooms and changing facilities that are designated for one sex shall be used only by members of that sex; no person shall enter a restroom or changing facility that is designated for one sex unless he or she is a member of that sex; and the public school with authority over that building shall take reasonable steps to ensure that all restrooms and changing facilities provide its users with privacy from members of the opposite sex.

(2) During any public-school authorized activity or event where students share overnight lodging, no student shall share a sleeping quarter or multi-occupancy restroom with a member of the opposite sex, unless such persons are members of the same family, such as a parent, legal guardian, sibling, or grandparent.

(3) In any other public-school facility or setting where a person may be in a state of undress in the presence of others, school personnel shall provide separate, private areas designated for use by persons based on their sex, and no person shall enter these private areas unless he or she is a member of the designated sex.

"Sex" means a person's biological sex, either male or female, as objectively determined by anatomy and genetics existing at the time of birth. Evidence of a person's biological sex includes, but is not limited to, any government-issued identification document that accurately reflects a person's sex as listed on the person's original birth certificate issued at or near the time of birth.