GOV §31105.2: (a) Any ordinance adopting a civil service system that was, prior to the effective date of this section, submitted to a vote of the qualified electors of the county at a general or special election an

(a) Any ordinance adopting a civil service system that was, prior to the effective date of this section, submitted to a vote of the qualified electors of the county at a general or special election and received the affirmative vote of a majority of the electors voting on the proposition for the approval of the ordinance, and all ordinances amending the ordinance, are hereby validated and confirmed and shall have the full legal effect of ordinances adopted by the board of supervisors and approved by the electors in the manner required by law and complying in every respect with laws relating to the adoption and approval of those ordinances, notwithstanding any defect, irregularity, omission or ministerial error in the adoption or approval thereof. (b) Any ordinance or ordinances repealing and adopting a civil service system that was, prior to the effective date of this subdivision, submitted to a vote of the qualified electors of the county at a general or special election and received the affirmative vote of a majority of the electors voting on the proposition for the approval of the ordinance or ordinances, and all ordinances amending that ordinance, are hereby validated and confirmed and shall have the full legal effect of ordinances adopted by the board of supervisors and approved by the electors in the manner required by law and complying in every respect with laws relating to the repealing, adoption, and approval of those ordinances, notwithstanding any defect, irregularity, omission or ministerial error in the adoption or approval thereof, including, but not limited to, the failure of the county elections official to mail to the voters official matter prescribed in Chapter 2 (commencing with Section 9100) of Division 9 of the Elections Code.