Immigration Act Article 23-1
Where an alien possesses an Alien Resident Certificate and meets any of the following circumstances due to the change or termination of the resident purpose previously occurred, he/she may apply to the National Immigration Agency for modification of reasons for residence:1. The alien meets any of the circumstances mentioned in the Subparagraphs of Paragraph 1 of the preceding Article. If the alien, however, falls under the exceptions provided under Subparagraph 1 or 2, Paragraph 1 of the preceding Article, he/she shall not apply.2. The alien is aged eighteen (18) or over and was previously granted residence pursuant to Subparagraph 2 or 3, Paragraph 1 of the preceding Article as studying at a school permitted to recruit foreign students by each level of the competent educational administration authority or as an overseas compatriot student studying in the State.3. An alien was previously granted residence pursuant to Subparagraph 3, Paragraph 4 of the preceding Article as a student admitted to study in the State by a school permitted to recruit foreign students by each level of the competent educational administration authority.The National Immigration Agency should, upon the approval of the application for status change pursuant to the preceding Paragraph, issue a new Alien Resident Certicificate bearing the length of residence.
中文原文 入出國及移民法第23-1條
外國人持外僑居留證，因原居留原因變更或消失，而有下列各款情形之一者，得向移民署申請變更居留原因：
一、符合前條第一項各款情形之一。
但有前條第一項第一款但書或第二款但書規定情形之一者，不得申請。
二、年滿十八歲，原依前條第一項第二款或第三款規定經許可居留，而在各級主管教育行政機關核定得招收外國學生之學校就學之學生，或在我國就學之僑生。
三、原依前條第四項第三款規定經許可居留，經各級主管教育行政機關核定得招收外國學生之學校許可在我國就學之學生。
依前項規定申請變更居留原因，經移民署許可者，應重新核發外僑居留證，並核定其居留效期。
一、符合前條第一項各款情形之一。
但有前條第一項第一款但書或第二款但書規定情形之一者，不得申請。
二、年滿十八歲，原依前條第一項第二款或第三款規定經許可居留，而在各級主管教育行政機關核定得招收外國學生之學校就學之學生，或在我國就學之僑生。
三、原依前條第四項第三款規定經許可居留，經各級主管教育行政機關核定得招收外國學生之學校許可在我國就學之學生。
依前項規定申請變更居留原因，經移民署許可者，應重新核發外僑居留證，並核定其居留效期。