The Seafarer Act Article 64
The master shall not rescind himself/herself from undertaking or cease his/her duties during a voyage even when his/her term of employment has expired.
中文原文 船員法第64條
船長在航行中，其僱用期限已屆滿，不得自行解除或中止其職務。
English translation for reference only; the Chinese text prevails. Not legal advice.