California Code, Elections Code - ELEC § 8404

Each signer of a nomination paper shall sign but one paper for the same office, except that in case two or more persons are to be elected to the same office at the same election, an elector may sign the nomination papers of as many persons as there are persons to be elected to the office, and that act on the part of an elector shall not be deemed in conflict with the signer's statement prescribed in this chapter.

The signer shall state his or her place of residence, giving his or her street and number, if any.