The Commercial Port Law Article 31
While navigating within the commercial port area, a ship shall cruise at a reduced speed, and shall not overtake other ships in a narrow navigation channel or obstruct the safe navigation of other ships.
中文原文 商港法第31條
船舶在商港區域內應緩輪慢行，並不得於航道追越他船或妨礙他船航行。