California Code, Government Code - GOV § 31000.1

The board of supervisors may appoint commissions or committees of citizens to study problems of general or special interest to the board and to make reports and recommendations to the board. The members of such commissions need not be specially trained or experienced with respect to the matters to be studied. The board may pay from any available funds such actual and necessary expenses of travel, lodging, and meals for the members of such commissions while on official business as may be approved by the board.