Elections Code § 3013
CHAPTER 1. Vote by Mail Application and Voting Procedures
Upon delivering or mailing a vote by mail voter’s ballot, the elections official shall enter on the affidavit of registration the type of ballot and the date of delivering or mailing. Before the election the elections official shall send to the inspector of each precinct in their county or city a list of the voters in that precinct receiving ballots under the provisions of this chapter.