I quess California has a new law that takes effect in January prohibiting the additional rear seat on any utv of 1000cc or less. They figure there were too many injuries involving these utv's where people added the rear seat in the back to make them four seaters. Originally they also had included that all passengers in utv's must be able to touch the floor board with their feet while seated with back against rear of seat but they took that part out.That is going to effect many owners from what i have seen.