Haw. Code R. § 19-134-2
As used in this chapter, unless the context clearly indicates otherwise:
"Bumper" means a horizontal load bearing protective system installed on a motor vehicle which is constructed of sturdy materials that will not shatter or split upon moderate impact and provide adequate protection against damage to the front and rear external lighting and reflective devices, hood, trunk, doors, painted surfaces, cooling system, exhaust system, and other components during a low speed impact.
"Bus" means every motor vehicle designed for carrying more than ten passengers and used for the transportation of persons.
"County department" means the county department designated by the county chief executive officer as having the responsibility for the inspection, certification, issuance of permits and stickers for reconstructed vehicles, and for providing appropriate notice as required to the county vehicle registration authority.
"Director" means the director of the state department of transportation.
"Frame or frame chassis" means the basic structural supporting assembly of a vehicle including unit body structures.
"Modified vehicle kit" means a package of components, other than original equipment or original equipment replacements, which when assembled becomes the major body assembly, or the major structural assembly, or both, used to construct or reconstruct a complete and operable vehicle.
"Modified vehicle manufacturer" means every person who manufactures or assembles two or more reconstructed vehicles having substantially the same design, construction, and equipment characteristics, and offers these vehicles for sale,
"Modified vehicle kit manufacturer" means every person who manufactures, distributes, offers for sale, or sells, a modified vehicle kit.
"Motorcycle" means every motor vehicle having a seat or saddle for the use of the rider and designed to travel on not more than three wheels in contact with the ground, but excludes farm tractor as defined in section 286-2, HRS, and a moped as defined in section 286-2, HRS.
"Offset wheel" leans a wheel with the mounting flange surface located to one side of the wheel centerline.
"Passenger car" means every motor vehicle, except motorcycles and motor scooters, designed for carrying ten passengers or less and used for the transportation of persons.
"Recognized manufacturer of vehicles" means every person who is engaged in the business of assembling new components into a complete and operable vehicle intended for use on the public highways and offers the vehicle for distribution and sale in the United States and is registered as a vehicle manufacturer with the United States Department of Transportation.
"Reconstructed vehicle" means a vehicle registered to be operated on a public highway which:
(1) is assembled from new or used parts by a person other than a recognized manufacturer of vehicles; or
(2) is modified to the extent that the identity of its make, model, or type is obscured by material changes in its appearance; or
(3) Is modified by the removal, addition, alteration, or substitution of other than original replacement essential parts, including but not limited to its body, power train, steering system, suspension system, exhaust system, intake system, or bumper system; excluding ordinary body repair which does not change the exterior structure of the vehicle.
"Rim" means a metal support for a tire or a tire and tube assembly upon which the tire beads are seated.
"Tire" means the rubber casing and tread assembly, with or without a tube, that is mounted on a rim to provide pneumatically cushioned contact and traction with the road.
"Truck" means a motor vehicle designed, used, or maintained primarily for the transportation of property.
"Vehicle" means every device in, upon, or by which any person or property is or may be transported or drawn upon a highway, but excludes mopeds and devices moved by human power or used exclusively upon stationary rails or tracks.
"Wheel" means a disk or series of spokes with a rim around the outside circumference for mounting the tire and a hub at the center which turns with or revolves around an axle.
"Wheel track" means the width of the track as measured from the center to center of the tires on the same axle.
Haw. Code R. § 19-134-2