(a) Moneys from the general appropriation of the department are hereby made available for the expense of administering the fund including the purchase through the Department of General Services of surety bonds for such officers or employes of the board as may be required to furnish them supplies, materials, motor vehicles, workmen's insurance covering the officers and employes of the board, and liability insurance covering vehicles operated by the officers and employes of the board.

(b) Moneys from the general appropriation of the department shall also be available for payment, to the Treasury Department, of the cost of making disbursements out of the fund on behalf of the fund at such amounts as the Treasury Department, with the approval of the Executive Board, shall determine.

(c) The board shall keep an accurate account of the money paid in premiums by the subscribers and the disbursements on account of damages to the premises thereof, and if at the expiration of any year there shall be a balance remaining after deducting such disbursements, the unearned premiums on undetermined risks and the percentage of premiums paid or payable to create or maintain the surplus provided herein, and after setting aside an adequate reserve, so much of the balance as the board may determine to be safely distributable may either be allocated to the cost of administering the fund or be distributed among the subscribers in proportion to the premiums paid by them and the proportionate share of such subscribers as shall remain subscribers to the fund shall be credited to the installment of premiums next due by them and the proportionate share of such subscribers as shall have ceased to be subscribers in the fund shall be refunded to them out of the fund in the manner hereinafter provided.

(d) Moneys from the general appropriation to the department shall also be available to pay a one-time commission as determined by the board to insurance producers who forward applications for mine subsidence insurance to the board pursuant to section 12¹ if a policy is issued pursuant to an application submitted by an insurance producer. The amount of the commission shall be determined by the board on an annual basis.