Since the last time I registered to vote, my address, name, political party or supervision status has changed. Do I have to re-register?

Probably. You need to re-register if any one of the following is true:

    You’ve changed your permanent address, legal name, or political party;
    You’ve completed a felony prison sentence AND you’re no longer on state parole; OR
    You’ve completed any type of felony sentence that prevented you from voting.[251]
  1. 251

    Election and Voter Information, Cal. Sec’y of State, http://www.sos.ca.gov/elections/elections_faq.htm; http://www.sos.ca.gov/elections/elections_vr.htm.