California Code
ARTICLE 2 - False or Ineligible Signatures on Petition
Section 18612.

18612. Every person is guilty of a misdemeanor who knowingly signs his or her own name more than once to any initiative, referendum, or recall petition, or signs his or her name to that petition knowing himself or herself at the time of signing not to be qualified to sign it.

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