BOATsmart! USA Knowledge Base

As a boat operator, you are required to use every means possible to identify the risk of collision. If you can’t confirm by looking and listening whether the possibility of a collision exists, then you must always assume that the risk DOES EXIST and take the appropriate actions to remain safe. The Coast Guard asks all boaters to recognize that the risk of collision is still possible even if a boat changes direction, especially if it is a large boat, a tow boat or a boat at close range.