The California Healthy Youth Act (CHYA) is a state law that requires schools to provide comprehensive, medically accurate, and age-appropriate sexuality education at least once in middle school and once in high school. The law ensures that instruction is inclusive of all students, supports healthy decision-making, and encourages communication with trusted adults about relationships, consent, and sexual health. To meet CHYA standards, the curriculum must feature lessons on HIV prevention, pregnancy, contraception, abstinence, sexual orientations, and gender identities.