40 USC 3173 - Working capital fund for blueprinting, photostating, and duplicating services in General Services Administration

(a) Establishment and Purpose.— 
There is a working capital fund for the payment of salaries and other expenses necessary to the operation of a central blue-printing, photostating, and duplicating service.
(b) Components.— 
The fund consists of
(1) $50,000 without fiscal year limitation; and
(2) reimbursements from available amounts of constituents of the Administrator of General Services, or of any other federal agency for which services are performed, at rates to be determined by the Administrator on the basis of estimated or actual charges for personal services, material, equipment (including maintenance, repair, and depreciation on existing and new equipment) and other expenses, to ensure continuous operation.
(c) Deposit of Excess Amounts in the Treasury.— 
At the close of each fiscal year any excess amount resulting from operation of the service, after adequately providing for the replacement of mechanical and other equipment and for accrued annual leave of employees engaged in this work by the establishment of reserves for those purposes, shall be deposited in the Treasury as miscellaneous receipts.