Cal. Elec. Code § 8020

(a) A candidate’s name shall not be printed on the ballot to be used at the direct primary unless the following nomination documents are delivered for filing to the county elections official:
1. (1) Declaration of candidacy pursuant to Section 8040.
2. (2) Nomination papers signed by signers pursuant to Section 8041.
3. (3) Proper qualification documentation pursuant to subdivision (a) of Section 13.5, if applicable.
(b) The forms shall first be available on the 113th day prior to the direct primary election, or on the 158th day prior to the primary election for a candidate for membership on a county central committee, and shall be delivered to the county for which the nomination documents were circulated not later than 5 p.m. on the 88th day prior to the primary election. The forms may be delivered to the county elections official by a person other than the candidate.
(c) Upon the receipt of an executed nomination document, the county elections official shall give the person delivering the document a receipt, properly dated, indicating that the document was delivered to the county elections official.
(d) Notwithstanding Section 8028, upon request of a candidate, the county elections official shall provide the candidate with a declaration of candidacy. The county elections official shall not require a candidate to sign, file, or sign and file, a declaration of candidacy as a condition of receiving nomination papers.