California Code, Elections Code - ELEC § 9163

Based on the time reasonably necessary to prepare and print the arguments, analysis, and county voter information guides and to permit the 10-calendar-day public examination as provided in Article 5 (commencing with Section 9190) for the particular election, the county elections official shall fix and determine a reasonable date before the election after which no arguments for or against any county measure may be submitted for printing and distribution to the voters as provided in this article. Notice of the date fixed shall be published by the county elections official pursuant to Section 6061 of the Government Code. Arguments may be changed until and including the date fixed by the county elections official.