Cal. Gov. Code § 12423

The Controller shall summon county tax collectors and redemption officers or the authorized representative of any county tax collector or redemption officer to meet with the Controller or his duly authorized representatives in such groups and at such place or places within the State as may be designated by the Controller for the purpose of discussion of tax collection, enforcement of taxes, and problems relating thereto, in order to promote uniformity of procedure in the collection of taxes on real and personal property throughout the State. The actual and necessary expenses of any such county officer or his authorized representative incurred while traveling to and from and while attending such meeting, shall be a charge against the county, to be paid in the same manner as other county charges are paid.