California Code, Elections Code - ELEC § 15504.5

Whenever the Secretary of State transmits a certificate of election or unofficial election results to the State Senate or State Assembly regarding a person who appears to have received the plurality of votes in an election for State Senator or State Assembly Member, the Secretary of State shall include a notation in that information, if applicable, that the person was not continuously registered to vote in the district in which the person appears to have received a plurality of votes from the date the candidate filed their declaration of candidacy pursuant to Section 8020 to the date, inclusive, on which the Secretary of State transmits the certificate of election or unofficial election results.