Document Legalization Act for the Ministry of Foreign Affairs and Overseas Missions Article 17

An overseas mission may issue certificates for the following:1. To certify the photocopy of an ROC passport as a true copy;2. In cases in which ROC laws and regulations require that the certificate be issued by an overseas mission; and3. In cases in which the certificate is required by a foreign agency in the consular jurisdiction, and is requested by an applicant, provided that the request does not contravene the laws of the ROC.
中文原文 外交部及駐外館處文件證明條例第17條
駐外館處得依申請就下列事項出具證明:
一、我國護照影本與正本相符。
二、依我國法律應由駐外館處出具者。
三、領務轄區內有關外國機關要求申請人提出駐外館處出具且未違反我國法令規定者。

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