Cal. Elections Code § 13109.10

(a) When a special election to fill a vacancy in the State Senate, State Assembly, United States House of Representatives, or United States Senate is consolidated with the regularly scheduled election for that office for the term following the term in which the vacancy occurred, the order of precedence of offices on the ballot for the County of Los Angeles shall be as listed in this section. Beginning in the column to the left: (1) Under the heading, REGULAR ELECTION: Candidates or nominees to the State Senate, State Assembly, United States House of Representatives, or United States Senate, as applicable, for the term following the term in which the vacancy occurred. (2) Under the heading, SPECIAL ELECTION: Candidates or nominees to the State Senate, State Assembly, United States House of Representatives, or United States Senate, as applicable, for the remainder of the term in which the vacancy occurred. (3) All other offices and measures shall be listed after the offices listed pursuant to paragraphs (1) and (2) according to the alternate ballot order described in Section 13109.8. (b) This section shall remain in effect only until the first January 1 that occurs at least four years after the declaration date described in subdivision (a) of Section 13109.7, and as of that date is repealed.