Modifies guidelines for student participation in athletic contests organized by sex

HB 2973 requires public and private schools, including charter schools and colleges, to restrict student athletic competition to categories matching the student's biological sex as recorded on their official birth certificate or another government document. It prohibits students from competing in sports designated for the opposite biological sex unless no equivalent competition exists for their biological sex. Schools violating this rule risk losing state funding, and affected students or parents can seek legal remedies. The bill also mandates separate facilities for bathing and restrooms based on biological sex, with limited alternative accommodations requiring parental consent for minors.