Pilotage Law Article 28

When piloting a vessel, a pilot may bring one certified apprentice pilot on board, or if permitted by the master of the vessel, he/she can bring two apprentice pilots.
中文原文 引水法第28條
引水人領航船舶時,得攜帶有證件之學習引水人一名;如經船長之許可,得攜帶學習引水人二名。

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