California Code, Elections Code - ELEC § 14311

(a) A voter who has moved from one address to another within the same county and who has not reregistered to vote at that new address may, at his or her option, vote on the day of the election at the polling place at which he or she is entitled to vote based on his or her current residence address, or at the office of the county elections official or other central location designated by that elections official. The voter shall be reregistered at the place of voting for future elections.

(b) Voters casting ballots under this section shall be required to vote by provisional ballot, as provided in Section 14310.