Pilotage Law Article 23

Any pilot shall be physically certified by a designated hospital through a check-up that he is physically fit for pilotage service; and during the period of performing pilotage service, any pilot shall make a check-up on vision, hearing and physical constitution once a year or make such check-up whenever the shipping administration authority deems necessary.
中文原文 引水法第23條
引水人必須經指定醫院檢查體格合格後,始得執行領航業務。
引水人在其繼續執行業務期間,每年應受檢查視覺、聽覺、體格一次,當地航政主管機關認為必要時,並得隨時予以檢查。

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