Cal. Health and Safety Code § 100390

The Director of Finance and the Controller may approve any general plan that meets the following requirements: (a) Any expenditures that are a proper charge against the money made available by the United States and deposited in the Public Health Federal Fund may be paid in the first instance from any appropriation from the General Fund, expenditures from which are administered through or under the direction of the department. (b) Any expenditures that are a proper charge against an appropriation from any special fund in the State Treasury, expenditures from which are administered through or under the direction of the department, may be paid in the first instance from any appropriation from the General Fund, expenditures from which are administered through or under the direction of the department. (c) The General Fund shall be reimbursed for expenditures made therefrom that are a proper charge against the Public Health Federal Fund or against any appropriation from any special fund. Such a general plan may provide for advance transfers from the Public Health Federal Fund to the General Fund, based on estimates of expenditures that will be subject to reimbursement from the Public Health Federal Fund pursuant to the plan, and may provide for reimbursements to the Public Health Federal Fund, when necessary. Request for reimbursement or transfer pursuant to the plan shall be furnished to the Controller in writing by the department, accompanied by financial statements as the plan may provide; and on order of the Controller, the required amount shall be transferred in accordance with the plan.