California Code
ARTICLE 4 - Issuing Ballots and Voting
Section 14286.

14286. When a measure is submitted to the voters, the voter shall place a mark on the ballot in the appropriate space opposite the answer the voter desires to give as to that measure. The voter, in marking the ballot, shall use the marking device provided.

(Enacted by Stats. 1994, Ch. 920, Sec. 2.)