At what distance do ships begin to render passing honors?

Ships begin rendering passing honors at a distance of 600 yards as a part of naval customs and traditions. This practice is rooted in enhancing situational awareness and ensuring safety at sea while also showing respect among vessels. At this distance, crew members are able to recognize the other ship, prepare for the passing maneuver, and perform the appropriate customs, which can include displaying flags and sounding whistles as a sign of mutual acknowledgment. The set distance allows for safe navigation and clear visibility, ensuring that both ships maintain a respectful distance while adhering to maritime protocols.