Passes with a majority vote.

Shall there be a change to the Colorado Revised Statutes creating new law restricting participation in all K-12 and collegiate school sports based on the participant’s sex as determined by certain aspects of their biological reproductive system, and, in connection therewith, requiring a school, institution of higher education, or athletic association to designate each school or intramural athletic team or sport as male, female, or coeducational; only allowing participants to compete on the team or sport of their designated sex or to compete on a coeducational team; creating an exception to allow a female to participate on a male-designated team or sport if there is no female team available; prohibiting a government entity, licensing or accrediting organization, or athletic association from entertaining a complaint, opening an investigation, or taking other adverse action against a school for maintaining separate teams or sports for females; and providing the commissioner of education with the authority to enforce the proposed initiative for K-12 school districts?

• Text of initiative #109 (PDF)
• Colorado Proposition 134, Sex Requirement for School and College Sports Initiative (2026) - Ballotpedia

Who Gets to Play in Women's Leagues? What a blood test taught me about testosterone, athleticism, and sex.  New Yorker - Article by S. C. Cornell (2023)

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