Pursuant to the provisions of section 29321.1 of the Government Code of the State of California, the County Auditor is hereby authorized to establish, increase, reduce and discontinue revolving funds for officers of the County in accordance with section 29320 et seq. of said Government Code. The County Auditor shall not establish a revolving fund in an amount in excess of Five Hundred Dollars ($500), or increase an existing revolving fund so that it exceeds said amount, without first advising the Board of Supervisors of the proposed action and securing the approval of the Board of Supervisors.