Compulsory Education Act Article 7

Before the end of May each year,local household registration authority shall complete surveys and compile a register of the six-year-old school-age nationals who are due to enroll in primary school. Before June 15 this register shall be sent to the appropriate education administration authority for the school district. Before July 15, each city, township, and district office shall notify the nationals listed in the register to enroll in the school district designated in the notification.Household registration authority shall if necessary assist local primary schools to conduct the surveys and registering of names referred to in the receding paragraph.
中文原文 強迫入學條例第7條
六歲應入國民小學之國民,由當地戶政機關於每年五月底前調查造冊,送經主管教育行政機關於六月十五日前依學區分發,並由鄉(鎮、市、區)公所於七月十五日前按學區通知入學。
前項所定之調查造冊,必要時戶政機關得協調當地國民小學協助辦理。

English translation for reference only; the Chinese text prevails. Not legal advice.