California Code, Education Code - EDC § 17090

The board shall require lessees to insure at their own expense for the benefit of the state, any leased portable classroom which is the property of the state, against such risks, including liability from the use thereof, in such amounts as the board may deem necessary to protect the interest of the state.  All payments resulting from claims made against the insurance shall be made payable to and retained by the board for deposit in the State School Building Aid Fund.