California Code, Elections Code - ELEC § 15625

(a) The recount shall be conducted under the supervision of the elections official.  The elections official shall convene special recount boards consisting of four individuals appointed by and at the discretion of the elections official.  The requester shall reimburse the county for the cost of each member of a recount board.

(b) If an individual appointed to a special recount board is required to tally any ballots as part of their role on the special recount board, that individual shall be eligible to register to vote in this state pursuant to Section 2101.

(c) If the office of the elections official is the subject of the recount, the governing body shall appoint an officer, other than the elections official, to appoint and supervise the special recount boards.  The appointee shall possess demonstrable experience necessary to conduct a machine or manual recount, including, but not limited to, years of experience as an elections official in the state, experience with current voting systems, and knowledge of the voting system's key functions.  This section does not prevent the office of the elections official that is subject to the recount from taking necessary steps to prepare for the recount during the period in which an alternative qualified officer is sought.