RCW 46.04.320: Motor vehicle.

(1) "Motor vehicle" means a vehicle that is self-propelled or a vehicle that is propelled by electric power obtained from overhead trolley wires but not operated upon rails. (2) "Motor vehicle" includes: (a) A neighborhood electric vehicle as defined in RCW 46.04.357 ; (b) A medium-speed electric vehicle as defined in RCW 46.04.295 ; and (c) A golf cart for the purposes of chapter 46.61 RCW. (3) "Motor vehicle" excludes: (a) An electric personal assistive mobility device; (b) A power wheelchair; (c) A golf cart, except as provided in subsection (2) of this section; (d) A moped, for the purposes of chapter 46.70 RCW; and (e) A personal delivery device as defined in RCW 46.75.010 .