California Code, Government Code - GOV § 23501

(a) “Affected county” means each county which is proposed to be part of a consolidated county or which is consolidated with one or more counties.

(b) “Principal county” means the county with the greatest proportion of assessed value, as shown on the last equalized assessment roll, to the total amount of taxable property in the county.

(c) “Clerk” means the clerk of the county board of supervisors.  Where the office of clerk of the board of supervisors is separate from the office of registrar of voters, “clerk” means the registrar of voters with respect to all duties pertaining to the conduct of elections and the certification of petitions and clerk of the board of supervisors with respect to all other duties specified in this chapter.