California Code, Elections Code - ELEC § 18100

(a) Every person who willfully causes, procures, or allows himself or herself or any other person to be registered as a voter, knowing that he or she or that other person is not entitled to registration, is punishable by imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code for 16 months or two or three years, or in a county jail for not more than one year.

(b) Every person who knowingly and willfully signs, or causes or procures the signing of, an affidavit of registration of a nonexistent person, and who mails or delivers, or causes or procures the mailing or delivery of, that affidavit to a county elections official is guilty of a crime punishable by imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code for 16 months or two or three years, or in a county jail for not more than one year.  For purposes of this subdivision, “nonexistent person” includes, but is not limited to, deceased persons, animals, and inanimate objects.