Cal. Education Code § 42620.1

(a) Whenever a charter school of a county or city and county does not have sufficient money to its credit, before the charter school receives its state, county, city and county, or district funds, to meet current expenses of maintenance, the board of supervisors of the county or city and county may order, and the auditor and treasurer of the county or city and county shall make, a temporary transfer from any funds of the county or city and county not immediately needed to pay claims against them to the charter school of the amount needed, not exceeding 85 percent of the amount of money that will accrue to the charter school during the fiscal year. Upon the making of a transfer, the auditor shall immediately notify the superintendent of schools of the county or city and county of the amount transferred. The board of supervisors may order temporary transfers of funds to charter schools only after ensuring that all transfer requests for school districts and county offices of education have been satisfied pursuant to Section 42620. (b) The funds transferred under this section to the credit of a charter school shall be retransferred by the auditor and treasurer to the fund from which they were taken from the first moneys accruing to the charter school and before any other obligation of the charter school is paid from the money accruing.