California Code, Elections Code - ELEC § 2210

(a) If the person or the person and estate is under a conservatorship established pursuant to Chapter 3 (commencing with Section 5350) of Part 1 of Division 5 of the Welfare and Institutions Code, the person may contest their disqualification from voting pursuant to the procedure set forth in Section 5358.3 of the Welfare and Institutions Code.

(b) When the conservatorship described in subdivision (a) terminates after one year, the person's right to register to vote shall be automatically restored and the court shall provide notice to the Secretary of State pursuant to Section 2211.5.  If a petition is filed for the reappointment of the conservator, a new determination shall be made as to whether the person should be disqualified from voting.

(c) If the right to vote is restored pursuant to Section 5358.3 of the Welfare and Institutions Code or if the conservatorship is terminated in a proceeding held pursuant to Section 5364 of the Welfare and Institutions Code, the court shall provide notice to the Secretary of State pursuant to Section 2211.5.

(d) This section shall become operative on January 1, 2024.