California Code, Health and Safety Code - HSC § 6794

(a) The treasurer, or other person or persons that are authorized by the board, shall draw checks or warrants to pay demands when demands have been approved by the board and signed by the president and secretary.

(b) Notwithstanding subdivision (a), the board may adopt a procedure that provides for checks or warrants to pay claims and demands without approval by the board of directors before payment if the district treasurer determines that the demands are payable within the district's approved budget. The procedure shall contain appropriate internal controls with measures to prevent fraud and ensure accountability, and which are necessary for financial reporting in conformance with generally accepted accounting principles. Demands so paid shall be presented to the board of directors at the next regular meeting for review. Demands exceeding the district's approved budget shall be subject to board approval.