Section 13303 Of Chapter 4. Sample Ballots And Voter Pamphlets From California Elections Code >> Division 13. >> Chapter 4.

. (a) For each election, each appropriate elections official shall cause to be printed, on plain white paper or tinted paper, without watermark, at least as many copies of the form of ballot provided for use in each voting precinct as there are voters in the precinct. These copies shall be designated "sample ballot" upon their face and shall be identical to the official ballots used in the election, except as otherwise provided by law. A sample ballot shall be mailed, postage prepaid, not more than 40 nor less than 21 days before the election to each voter who is registered at least 29 days prior to the election.
  (b) The elections official shall send notice of the polling place to each voter with the sample ballot. Only official matter shall be sent out with the sample ballot as provided by law.
  (c) The elections official shall send notice of the polling place to each voter who registered after the 29th day prior to the election and is eligible to participate in the election. The notice shall also include information as to where the voter can obtain a sample ballot and a ballot pamphlet prior to the election, a statement indicating that those documents will be available at the polling place at the time of the election, and the address of the Secretary of State's website and, if applicable, of the county website where a sample ballot may be viewed.