Cal. Elections Code § 13302

(a) The county elections official shall forthwith submit the county voter information guide of each political party to the chairperson of the county central committee of that party, and shall mail a copy to each candidate for whom nomination papers have been filed in his or her office or whose name has been certified to him or her by the Secretary of State, to the post office address given in the nomination paper or certification. The county elections official shall post a copy of each county voter information guide in a conspicuous place in his or her office. (b) In connection with an election at which a candidate for a voter-nominated office will appear on the ballot, a qualified political party may submit to the county elections official a list of all candidates for voter-nominated office who will appear on a ballot in the county in question, and who have been endorsed by the party by whatever lawful mechanism the party adopts for endorsing candidates for voter-nominated office. If a political party timely submits a list to the county elections official pursuant to this subdivision, the county elections official shall print the names of the candidates for voter-nominated office who were endorsed by that political party in the voter information portion of the county voter information guide. The party chairperson shall provide a written copy of the list of candidates endorsed by the party not later than 83 days before the election at which the candidate for a voter-nominated office will appear on the ballot.