ericynot--- Why Not read and understand the law before you spew? Do you even live in AZ? No, I am certain you don't. The citizens would not EVER support a law that made US provide proof of anything. Cops worry about drivers who create hazards, stop them, and then find out that they have no license, insurance, registration, and cannot speak or read English. Should the cop let him continue at MY financial or physical peril? Sorry buster, you are all wet on this one.