Cal. Elec. Code § 13120

The ballots used when voting upon a state, county, city, or district statute or ordinance referred to the voters of the respective jurisdiction as a referendum measure pursuant to Division 9 (commencing with Section 9000) shall have printed on them the words “Shall the statute (or ordinance) (stating the nature thereof, including any identifying number or title) be adopted?” Opposite the statement of the statute or ordinance to be voted on and to its right, the words “Yes” and “No” shall be printed on separate lines, with voting squares. If a voter stamps a cross (+) in the voting square after the printed word “Yes,” his or her vote shall be counted in favor of the adoption of the ordinance or statute. If he or she stamps a cross (+) in the voting square after the printed word “No,” his or her vote shall be counted against its adoption.