Supplementary and Continuing Education Act Article 4
Supplementary compulsory education is implemented in the elementary schools and supplementary compulsory education schools attached to secondary schools. Supplementary compulsory schools are divided into junior and senior divisions. The junior division is equivalent to the first three grades of elementary school, and the duration of study ranges from six months to one year; the senior division is equivalent to the last three grades of elementary school, and the duration of study ranges from one year and a half to two years. The supplementary compulsory schools attached to secondary schools are equivalent to secondary schools, and the duration of study shall be no less than three years.
中文原文 補習及進修教育法第4條
國民補習教育，由國民小學及國民中學附設國民補習學校實施之。
國民小學補習學校分初、高級二部，初級部相當於國民小學前三年，修業期限為六個月至一年；高級部相當於國民小學後三年，修業年限為一年六個月至二年。
國民中學補習學校相當於國民中學，修業年限不得少於三年。
國民小學補習學校分初、高級二部，初級部相當於國民小學前三年，修業期限為六個月至一年；高級部相當於國民小學後三年，修業年限為一年六個月至二年。
國民中學補習學校相當於國民中學，修業年限不得少於三年。