Regulations Governing the Certification for Aviation Products, Appliances and Parts Article 42

For the initial application of an aircraft's Certificate of Airworthiness, the owner or operator must submit application documents 30 days before the intent of the aircraft's operation to the CAA.Initial application for Certificate of Airworthiness for aircraft imported from a foreign country should have satisfactorily completed acceptance inspections and flight tests. The application package should also include a copy of type validation certificate, export certificate of airworthiness issued by the aviation authority of the state of manufacture or the state of registry, noise certificate and other related documents required by the Special Airworthiness Requirements. The CAA may require additional flight tests when deemed necessary.Application for renewal of the Certificate of Airworthiness should be submitted to the CAA 30 days prior to the expiration date.
中文原文 航空產品與其各項裝備及零組件適航檢定管理規則第42條
初次申請航空器適航證書,航空器所有人或使用人應於使用前三十日檢附申請書向民航局申請檢定。
自國外進口之航空器初次申請航空器適航證書時,航空器所有人或使用人應完成接收檢查及試飛,並檢附型別認可檢定證影本、原製造國或登記國之適航主管機關發給有效之出口適航證明文件、噪音證明及其他符合特別適航要求之文件。
必要時,民航局得要求再試飛。
航空器所有人或使用人應於航空器適航證書期限屆滿三十日前向民航局申請換發。

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