Section 14284 Of Article 4. Issuing Ballots And Voting From California Elections Code >> Division 14. >> Chapter 3. >> Article 4.
14284
. (a) All ballots, except vote by mail voter ballots, shall be
marked only with the marking device provided by law.
(b) To prevent voters from marking their ballots with a pen or
pencil, at the time of delivering a ballot to a voter, the precinct
officer shall distinctly state that the voter shall mark the ballot
with the device provided by law or the ballot will not be counted.