Do not obtain a smog test in Arizona. It will not be valid for California vehicle registration. Fill out and sign the DMV's "Statement of Facts" form (Section G), OR complete Reg 5103, explaining your vehicle is out of state and the registration tags will be mailed to the registered owners address on file with the DMV. Someone will then need to forward the stickers or tags to you. These forms will allow you to complete the registration renewal process without a smog certificate. Please note this smog exemption is allowed only for vehicles which are temporarily located out of state. A smog inspection must be performed immediately upon returning to California.
Mail the form to:
Department of Motor Vehicles
P.O. Box 942869
Sacramento, CA 94269-0001
You may download the Statement of Facts Form (Reg 256) here, and Temporary Smog Exemption Form (Reg 5103) here.
For more information visit... How to register my car in California without a smog check when it is temporarily located out of state.