16.__Motorboat. "Motorboat" means any watercraft, including airmobiles, equipped with propulsion machinery of any type, whether or not the machinery is the principal source of propulsion, is permanently or temporarily attached or is available for propulsion on the watercraft.

17.__Motorboat carrying passengers for hire. "Motorboat carrying passengers for hire" means a motorboat used for the purpose of carrying a person or persons as passengers for valuable consideration, whether directly or indirectly flowing to the owner, charterer, agent or any other person interested in the watercraft.

18.__Operate. "To operate," in all its moods and tenses, means:

A.__When it refers to a snowmobile, to use a snowmobile in any manner within the jurisdiction of the State, whether or not the vehicle is under way;

B.__When it refers to watercraft of any type or description, to use that watercraft in any manner on the waters specified, whether or not the watercraft is under way; or

C.__When it refers to an ATV, to use an ATV in any manner within the jurisdiction of the State, whether or not the vehicle is moving.

19.__Operation. "Operation," when it refers to watercraft of any type or description, means the act of operating as defined in subsection 18.

20.__Operator. "Operator" means the person who is in control or in charge of a watercraft while it is in use.

21.__Owner. "Owner" means:

A.__For the purpose of registration of a snowmobile, a person holding title to a snowmobile or having exclusive right to the use of a snowmobile for a period greater than 30 days;

B.__With respect to watercraft, a person who claims lawful possession of the watercraft by virtue of legal title or