Enforcement Rules of the Overseas Compatriot Identity Certification Act Article 13

Applications for an Overseas Compatriot Identity Endorsement within the R.O.C. (TAIWAN) pursuant to Paragraph 1, Article 10 of the Act shall be lodged to the competent authority if applied domestically; once the competent authority recognizes and issues a letter of approval, the application shall be proceeded to the Bureau of Consular Affairs (hereinafter referred to as the “BOCA”) of the Ministry of Foreign Affairs (hereinafter referred to as the “MOFA”) or its delegated authority. Applications filed abroad shall be lodged to the Embassies and Missions abroad.
中文原文 華僑身分證明條例施行細則第13條
依本條例第十條第一項規定申請護照加簽僑居身分,在國內應向主管機關申請,經主管機關審查認定並出具核准函後,向外交部領事事務局或其分支機構辦理;在國外應向駐外館處申請。

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