Ins. Code, § 11870

The state, any agency, department, division, commission, board, bureau, officer or other authority thereof, and each county, city and county, city, school district, irrigation district, any other district established by law, or other public corporation or quasi public corporation within the state, including any public utility operated by a private corporation may insure against its liability for compensation with the State Compensation Insurance Fund. Where the state or any agency, department, division, commission, board, bureau, officer or authority thereof is the insured, the premium for that insurance shall be a proper charge against any moneys appropriated for the support of or expenditure by the insured, except that in the case of an insured supported by or authorized to expend moneys appropriated out of more than one fund, the insured, with the approval of the Director of Finance, may determine the proportion of the premium to be paid out of each fund. In that case the insured, with the approval of the Director of Finance, may pay the entire premium out of any of those funds and thereafter the funds used for payment shall be reimbursed in proper proportion out of the other funds. In case a county, city and county, city, school district, irrigation district, or other district established by law, or other public corporation or quasi public corporation within the state is the insured, the premium therefor shall be a proper charge against the general fund of the insured.