V C Section 531 Utility–Terrain Vehicle
531. "Utility–terrain vehicle" means a motor vehicle subject to subdivision (a) of Section 38010 that is all of the following:
(a) Designed for operation off of the highway.
(b) Suspended on four tires.
(c) Has a steering wheel for steering control.
(d) Has one seat to accommodate a driver and one passenger sitting side by side.