Regulations of Civil Air Transport Enterprise Article 13

Civil air transport enterprise shall, within the allotted preparatory period, make aircraft, available complete the formality for CAA to check out its flight operation and mechanical service and test flight, before CAA will issue an air route certificate authorizing the applicant to start doing business. Test flight may be waived if CAA after screening decides it is not necessary.Provisions in the preceding paragraph shall apply to civil air transport enterprise application for running a charter flight.
中文原文 民用航空運輸業管理規則第13條
民用航空運輸業應於核准籌辦期限內備妥航空器,申請民航局完成航務、機務審查及試航合格後,由民航局核發航線證書,始得營業。
但經民航局審核無需試航者,得免試航。
民用航空運輸業申請包機飛航,準用前項規定。

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