Register to vote at the DMV when you change your address / name with them
When Can You Change Your Registration Information?
You may submit changes at any time, but the notice of your change must be received or postmarked no later than 22 days before the election in which you wish to participate. The processing of new registrants ceases and changes for voters cannot be processed after this time. You can check the dates of upcoming elections online.
Please Note: In most cases your new name printed on your application will suffice. In cases of a legal name change, documentation of the name change may be required.