Cal. BPC § 113

Upon recommendation of the director, officers, and employees of the department, and the officers, members, and employees of the boards, committees, and commissions comprising it or subject to its jurisdiction may confer, in this state or elsewhere, with officers or employees of this state, its political subdivisions, other states, or the United States, or with other persons, associations, or organizations as may be of assistance to the department, board, committee, or commission in the conduct of its work. The officers, members, and employees shall be entitled to their actual traveling expenses incurred in pursuance hereof, but when these expenses are incurred with respect to travel outside of the state, they shall be subject to the approval of the Governor and the Director of Finance.