"boat" means watercraft used or capable of being used as a means of transportation on water, except for (A) a ship's lifeboat; (B) a seaplane; (C) an inspected passenger vessel; and (D) a single air mattress, single inner tube, or other water toy;
"certificate of number" means the document bearing the identification number issued to a boat by the Department of Natural Resources, by a federal agency, or by the state of principal use under a federally approved numbering system;
"navigable water" means any water of the state forming a river, stream, lake, pond, slough, creek, bay, sound, estuary, inlet, strait, passage, canal, sea or ocean, or any other body of water or waterway within the territorial limits of the state or subject to its jurisdiction, that is navigable in fact for any useful public purpose, including but not limited to water suitable for commercial navigation, floating of logs, landing and takeoff of aircraft, and public boating, trapping, hunting waterfowl and aquatic animals, fishing, or other public recreational purposes;
"operate" means to navigate or to be in actual physical control of a boat used or capable of being used as a means of transportation on water of the state;
"owner" means a person who has a property interest other than a security interest in a boat and the right of use or possession of the boat; "owner" does not include a lessee unless the lease is intended as security;
"passenger" means a person on board a boat who is not the master, operator, crew member, or other person engaged in a capacity in the business of the boat;
"undocumented boat" means a boat that does not possess a valid certificate of documentation issued by the United States Coast Guard under 46 U.S.C. 12101 - 12123;
"validation decal" means a decal that has the state of registration and registration expiration year clearly marked;