California Code
ARTICLE 4 - Issuing Ballots and Voting
Section 14287.

14287. No voter shall place personal information upon a ballot that identifies the voter. “Personal information” includes all of the following:

(a) The signature of the voter.

(b) The initials, name, or address of the voter.

(c) A voter identification number.

(d) A social security number.

(e) A driver’s license number.

(Amended by Stats. 2011, Ch. 739, Sec. 2. (SB 183) Effective January 1, 2012.)