Construction Industry Act Article 20

Where a construction enterprise stops operation by itself or is put under punishment of closure, the construction enterprise registration certificate and the projects contracting manual shall be handed in to the central, municipal or county (city) competent authority for recording, and will be returned back after record is made; the same for recovery of operation.Where a construction enterprise terminates operation, the construction enterprise registration certificate and the projects contracting manual shall be handed in to the central, municipal or county (city) competent authority, and the registration shall be abolished.
中文原文 營造業法第20條
營造業自行停業或受停業處分時,應將其營造業登記證書及承攬工程手冊送繳中央主管機關或直轄市、縣(市)主管機關註記後發還之;復業時,亦同。
營造業歇業時,應將其營造業登記證書及承攬工程手冊,送繳中央主管機關或直轄市、縣(市)主管機關,並辦理廢止登記。

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