Notwithstanding Section 15301, if the only ballots that the elections official has left to count as part of the official canvass are vote by mail ballots for which a voter has the opportunity either to verify their signature pursuant to subdivision (d) of Section 3019 or to provide their signature pursuant to subdivision (e) of Section 3019, and the elections official does not need to continue the official canvass for at least six hours per day in order to complete the official canvass by the 28th calendar day following the election, the official canvass may be continued for fewer than six hours per day until completion.
Ca. Elec. Code § 15393