Cal. Pub. Util. Code § 28747.4

The county elections official of each county within the boundaries of the district shall conduct the election and canvass the returns for those election districts or portions of election districts which are within the county of his or her jurisdiction as county elections official. After the official canvass has been taken, the county elections official shall report the returns, by election district number, to the board. The board shall declare the results of the election. The secretary of the district shall issue certificates of election, signed by him or her and duly authenticated, to each candidate declared elected, immediately following determination of the results of the election by the board.