Cal. Elec. Code § 3013

Upon delivering or mailing a vote by mail voter’s ballot, the elections official shall enter on the application of the vote by mail voter, or 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 his or her county or city a list of the voters in that precinct applying for and receiving ballots under the provisions of this chapter.