Regulations Governing General Aviation Article 16
General aviation enterprises are required to keep all contracts, letters of authorization, passenger lists or their electronic files for at least 2 years for CAA’s reference.
中文原文 普通航空業管理規則第16條
普通航空業與執行飛航有關之合約、委託書、搭載乘員名冊或其電子檔，應自起飛之日起至少保存二年，以備民航局查核。