I know it used to be if it was a new,non CA spec bike(0 miles)you'd never be able to register it,and if it was a used bike it must have 7,500 hundred miles(or will be considered "new")and didn't have to be a CA spec bike to be registered.Have a friend who bought an '08 Busa from the East coast with 4,000 miles on it and had it shipped out here not knowing about the minimum 7,500 mile crap,DMV totally black flagged it/told him he'd never be able to register it/if he was caught riding it it would be impounded,etc.I've lived out here 20 years and didn't know about that bullshyt(neither did he)until that incident.As far as I know the only difference between a 49 state model and the CA model(Busas anyway) is that stupid charcoal canister they stick in the Busa's tail,which I pitched anyway as soon as I bought mine.When I bought mine new in 2011 I was looking at some from AZ and the dealers said they were CA spec,but I would still have to pay the CA sales tax,registration fees,etc.