"Wheeled all-terrain vehicle" or "WATV" is defined as:

A. Any motorized nonhighway vehicle with handlebars that is 50 inches or less in width, has a seat height of at least 20 inches, weighs less than 1,500 pounds, and has four tires having a diameter of 30 inches or less.

B. A utility-type vehicle designed for and capable of travel over designated roads that travels on four or more low-pressure tires of 20 psi or less, has a maximum width less than 74 inches, has a maximum weight less than 2,000 pounds, has a wheelbase of 110 inches or less, and satisfies at least one of the following:

All other definitions contained in Chapters 46.04 and 46.09 RCW are adopted by this reference and shall apply to this Chapter.