A vessel underway and fishing shall keep out of the way of a __________.

A vessel that is underway and engaged in fishing is required to keep clear of a vessel not under command. This requirement stems from the rules governing the conduct of vessels on the water to prevent collisions and ensure safety. A vessel not under command is unable to maneuver due to circumstances such as engine failure or other incapacitating issues, making it particularly vulnerable. Therefore, the fishing vessel must take measures to avoid interaction with such a vessel, as its safety takes precedence.

In navigating the responsibilities of vessels at sea, it is crucial to recognize that vessels that are not able to comply with navigational rules or maneuvers need to be given proper leeway. This rule emphasizes the importance of giving way to vessels that have a diminished ability to operate safely in the navigation environment. Other types of vessels mentioned, such as commercial and recreational vessels, may still be able to navigate and thus do not have the same priority scenario as a vessel not under command.