California Government Code
(a) The home address, telephone number, email address, precinct number, or other number specified by the Secretary of State for voter registration purposes, and prior registration information shown on the affidavit of registration, is confidential and shall not be disclosed to any person, except pursuant to Section 2194 of the Elections Code.
(b) For purposes of this section, home address means street address only, and does not include an individuals city or post office address.
(c) The California drivers license number, the California identification card number, the social security number, and any other unique identifier used by the State of California for
purposes of voter identification shown on an affidavit of registration, or added to the voter registration records to comply with the requirements of the federal Help America Vote Act of 2002 (42 U.S.C. Sec. 15301 et seq.), are confidential and shall not be disclosed to any person.
(d) The signature of the voter that is shown on the affidavit of registration is confidential and shall not be disclosed to any person.