Section 6621.

Cal. Elections Code - ELEC § 6621.
in effect
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Any person who believes his or her name may be used as a write-in candidate for President of the United States shall, not later than 21 days before the primary election, file his or her endorsement of his or her write-in candidacy with the Secretary of State, or no votes shall be counted for him or her.
Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026

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