Regulations for Passenger Ship Administration Article 145

In the drills for lifeboats that are conducted consecutively, each group of lifeboats shall be lifted overboard by turn, and shall be lowered at least once every three months.
中文原文 客船管理規則第145條
客船上不同之各組救生艇,應於次第舉行之救生艇演習中輪流吊至舷外。
每艘救生艇應至少每三個月放下一次。

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