The nine-year compulsory education system is a unified education system implemented by the state. All school-age children and adolescents must enjoy the right to receive compulsory education, which is a public welfare undertaking that the state must guarantee. The implementation of nine-year compulsory education means that school-age children and adolescents begin to receive nine-year education without tuition and fees. The state establishes a mechanism to guarantee the funds for compulsory education to ensure the implementation of the compulsory education system.