Regulations for Passenger Ship Administration Article 139
Steering gear, steam horn, and communicating systems between the navigation bridge, wheel house and machinery space shall be inspected and tested once before departure.
中文原文 客船管理規則第139條
操舵機、汽笛、駕駛台、導航室各與機器間之連絡系統，應於發航前檢視及試驗一次。