California Code, Elections Code - ELEC § 9142

(a) Notwithstanding Section 9141, ordinances authorizing the issuance of revenue bonds by a county as part of a joint powers entity pursuant to Section 6547 of the Government Code shall not take effect for 60 days.

(b) When the number of votes cast for all candidates for Governor at the last gubernatorial election within the boundaries of the county described in subdivision (a) exceeds 500,000, the ordinance is subject to referendum upon presentation of a petition bearing signatures of at least 5 percent of the entire vote cast within the boundaries of the county for all candidates for Governor at the last gubernatorial election. When the number of votes cast for all candidates for Governor at the last gubernatorial election within the boundaries of the county is less than 500,000, the ordinance is subject to referendum upon presentation of a petition bearing signatures of at least 10 percent of the entire vote cast within the boundaries of the county for all candidates for Governor at the last gubernatorial election.

(c) For the purpose of submitting the question to the voters pursuant to subdivision (b), the ballot wording shall approximate the following: