(a) The expenses of executing the provisions of this chapter shall be paid by warrants drawn by the comptroller on the State Treasury against the income from the special funds accumulated from leases, rentals, royalties, and other payments.
(b) The amounts received under the provisions of this chapter and deposited to the credit of a special fund shall be used exclusively for the benefit of the appropriate department, board, or agency.
(c) No money may be spent from the special funds except by legislative appropriation and for the purposes and in the amount stated in the Act appropriating it.