Pilotage Law Article 18
In the case of two or more vessels hanging the call-pilot signals, the pilot shall respond to serve the first-come vessel; however, if one of these vessels is in distress, the pilot shall firstly render his service to such vessel.
中文原文 引水法第18條
二艘以上之船舶同時懸掛招請引水人信號時，引水人應對先到港之船舶應招，倘其中有船舶遇險時，引水人須先應該船舶之招請。