Implementation Regulations Governing the Operation of Customs-Port-Trade (CPT) Single Window Article 6
Participating traders, must first register with an official certificate before filing an application for customs clearance, maritime and port, trade licensing, commodity inspection, and quarantine via the CPT Single Window.The traders, who favor applying for any of the aforementioned matters online, are required to register with either an IC Card issued by the Ministry of the Interior Certificate Authority, or a certificate offered by one of the following authorities: Government Certification Authority (GCA), Ministry of Economic Affairs Certification Authority (MOEACA), and Mixed Organization Certificate Authority (XCA).In the case where the traders only intend to file for the application of the customs clearance via the electronic data transmission system, they may choose to present only a clearance certificate in registration, in addition to the above-mentioned certificate options.
中文原文 關港貿單一窗口運作實施辦法第6條
參與業者使用關港貿單一窗口申辦貨物通關、航港、貿易簽審、檢驗及檢疫業務，應以憑證提出註冊申請。
透過電腦連線關港貿單一窗口，申辦前項業務者，限以政府憑證管理中心簽發之政府憑證、內政部憑證管理中心簽發之自然人憑證、經濟部工商憑證管理中心簽發之工商憑證、組織及團體憑證管理中心簽發之組織及團體憑證提出註冊申請。
第一項業務以電子資料傳輸方式連線關港貿單一窗口申辦者，除得使用前項憑證提出註冊申請外，亦得以通關專屬憑證為之。
透過電腦連線關港貿單一窗口，申辦前項業務者，限以政府憑證管理中心簽發之政府憑證、內政部憑證管理中心簽發之自然人憑證、經濟部工商憑證管理中心簽發之工商憑證、組織及團體憑證管理中心簽發之組織及團體憑證提出註冊申請。
第一項業務以電子資料傳輸方式連線關港貿單一窗口申辦者，除得使用前項憑證提出註冊申請外，亦得以通關專屬憑證為之。