The measure to prohibit surgeries altering biological sex characteristics for those under 18, along with related state and federal funding restrictions, qualified for Colorado’s November 3, 2026 ballot after Protect Kids Colorado submitted sufficient signatures in March 2026. It joins other citizen initiatives on related topics and faces organized opposition from groups including One Colorado and Planned Parenthood, with opposition fundraising exceeding support efforts to date. The initiative aligns with statutory bans enacted in over two dozen states and follows federal CMS rules limiting Medicaid and CHIP reimbursement for such procedures on minors, effective October 2026, which prompted Colorado lawsuits and hospital adjustments. Trader consensus at 63% Yes reflects these qualification milestones, national policy momentum on minor medical interventions, and the measure’s narrow surgical focus in a state where gender-affirming surgeries for youth remain rare.