1.All vessels passing through the main structure of Hong Kong-Zhuhai-Macau Bridge should select the appropriate channel and navigation span according to the depth of the bridge section channel and the vertical clearance of the navigation span. It is prohibited from overtaking,crossing within the bridge channel. Passing through non-navigation span or any behavior may threaten the safety of navigation or the bridge is all prohibited. 2.All vessels passing through the main structure of Hong Kong-Zhuhai-Macau Bridge shall pay close attention to the movements of navigation marks, keep to the navigation regulations and maintain safe speed, keep good lookout, navigate with caution and navigate in order under the leading of aids to navigation. 3.All vessels entering the upper reaches or lower reaches 3M of the axis of the Hong Kong-Zhuhai-Macau Bridge shall keep listening to VHF channels 16, and 69(Shenzhen VTS), 09(Guangzhou VTS) and 13(Zhuhai VTS).