Seafarer's Service Regulations Article 61

When a vessel is sailing or berthed in port, the deck department’s generalist shall comply with the orders of the chief mate or deck officer responsible for the navigational watch to form part of the watch keeping, engage in the cleaning and maintenance of the ship, participate in the loading and unloading of cargo, and help the general affairs department with its tasks whenever necessary.
中文原文 船員服務規則第61條
輪值艙面部門之通用乙級船員秉承大副或當值航行員之命,於船舶航行在港時擔任當值,從事船舶清潔、保養及裝卸貨物之準備事宜,必要時須協辦事務部門工作。

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