Enforcement Rules of the Act Governing Relations with Hong Kong and Macau Article 6
When the Residents of Macau apply for entry into the Taiwan Area, or claim their status as Macau Residents in the Taiwan Area, relevant authorities may request such Macau Residents to explain the fact of not holding Portuguese passports or travel document other than the Macau passport, or to provide evidence thereof.Portuguese passport referred to in the preceding paragraph means only those obtained in Macau prior to the end of Portuguese rule.
中文原文 香港澳門關係條例施行細則第6條
澳門居民申請進入臺灣地區或在臺灣地區主張其為澳門居民時，相關機關得令其陳明未持有葡萄牙護照或澳門護照以外旅行證照之事實或出具證明。
前項葡萄牙護照，以葡萄牙結束其治理前，於澳門取得者為限。
前項葡萄牙護照，以葡萄牙結束其治理前，於澳門取得者為限。