How does Rule 22 define "vessel"?

Rule 22 of the COLREGs defines a "vessel" as any watercraft, which encompasses a wide range of structures designed for navigation on water, including those that may not conform to traditional definitions of ships and boats. This definition is inclusive and recognizes various types of vessels such as cargo ships, pleasure craft, fishing boats, and even non-motorized watercraft. It also includes specialized watercraft like hydrofoils or other innovative designs that can navigate through water, reflecting the evolving nature of maritime vehicles.

This broad definition is crucial because the COLREGs apply universally, ensuring that all forms of watercraft, regardless of their size, purpose, or means of propulsion, are subject to the same rules for collision avoidance. By encompassing all types of navigation-related watercraft, the regulations promote safety and accountability among all mariners on the water.