"Sec. 4   RCW 46.20.500 and 2003 c 353 s 9, 2003 c 141 s 7, and 2003 c 41 s 1 are each reenacted and amended to read as follows:
     (1) No person may drive either a two-wheeled or a three-wheeled motorcycle, or a motor-driven cycle unless such person has a valid driver's license specially endorsed by the director to enable the holder to drive such vehicles.
     (2) However, a person sixteen years of age or older, holding a valid driver's license of any class issued by the state of the person's residence, may operate a moped without taking any special examination for the operation of a moped.
     (3) No driver's license is required for operation of an electric-assisted bicycle if the operator is at least sixteen years of age. Persons under sixteen years of age may not operate an electric-assisted bicycle.
     (4) No driver's license is required to operate an electric personal assistive mobility device or a power wheelchair.
     (5) No driver's license is required to operate a motorized foot scooter. Motorized foot scooters may not be operated at any time from a half hour after sunset to a half hour before sunrise without reflectors of a type approved by the state patrol.
     (6) A person holding a valid driver's license may operate a motorcycle as defined under RCW 46.04.330(2) without a motorcycle endorsement."