Can I change the address of my car registration online?
this is for California DMV
Yes, you can change the address of your car registration online. You can do so on http://dmv.ca.gov/online/coa/welcome.htm. You will need to fill a Change of Address (DMV14) form and post it to the address listed on the form.
with the proper identification and proof of address, you should be able to this without delay