nautical chart a map of a sea area showing on it any coastlines, rocks and dangers to vessels etc. within the area covered and also showing the positions of navigation aids and other prominent features. navigable waters means any waters whether coastal or inland which are able to be navigated; and includes harbours. navigate means the act or process of managing or directing the course of a vessel on, through, over, or under the water. obstruction means an object, equipment, structure, vessel or person positioned, whether in the water or not, so as to restrict or prevent navigation of a vessel or cause a hazard to people on a vessel. oil means petroleum in any form, including crude oil, fuel oil, sludge, oil refuse, and includes spirit produced from oil and mixed with water and refined products (within the meaning of section 222 of the Maritime Transport Act 1994). owner (a) in relation to a vessel registered in New Zealand under the Ship Registration Act 1992, means the registered owner of the vessel; or (b) in relation to a vessel registered in any place outside New Zealand, means the registered owner of the vessel; or (c) in relation to a fishing vessel, other than one to which paragraph (a) or (b) of this definition applies, has the same meaning as owner as defined in the Fisheries Act 1996; or (d) in relation to a vessel to which paragraphs (a), (b), or (c) of this definition applies, where, by virtue of any charter of demise charter or for any other reason, the registered owner is not responsible for the management of the vessel, includes the charterer or other person who is for the time being so responsible; or (e) in relation to an unregistered vessel or registered vessel that does not have a registered owner, means the person who is for the time being responsible for the management of the vessel; and (f) in relation to any maritime facility includes the licence or consent holder. person in charge in relation to any vessel, means the master. personal flotation device means any buoyancy aid that is designed to be worn on the body (PFD) that meets- (a) a standard in NZ Standard 5823:2001 applicable to such buoyancy aids (b) a national or international standard that the Director is satisfied substantially complies with a standard in NZ Standard 5823:2001 applicable to such buoyancy aids. personal water craft (PWC) means a power driven vessel that- (a) has a fully enclosed hull; and Page 6