The general treasurer shall receive and provide for the proper custody of all funds paid to the state from the federal treasury under the provisions of the Fair Labor Standards Act, 29 U.S.C. § 201 et seq., and shall disburse those funds upon orders drawn by the controller upon receipt by him or her of proper vouchers approved by the director of the department of labor and training. Nothing in this chapter shall be construed as authorizing the department of labor and training to spend in excess of its appropriation from state funds except to the extent that the excess may be paid and/or the appropriation may be reimbursed by the United States Department of Labor through the federal treasury; and, provided, that the payment and request for reimbursement shall be approved by the director of administration.