Pub. L. 91-171, tit. VI, sec. 604

Sec. 604. Appropriations contained in this Act shall be available for insurance of official motor vehicles in foreign countries, when required by laws of such countries; payments in advance of expenses determined by the investigating officer to be necessary and in accord with local custom for conducting investigations in foreign countries incident to matters relating to the activities of the department concerned; reimbursement of General Services Administration for security guard services for protection of confidential files; reimbursement of the Federal Bureau of Investigation for expenses in connection with investigation of defense contractor personnel; and all necessary expenses, at the seat of government of the United States of America or elsewhere, in connection with communication and other 83 Stat. 480services and supplies as may be necessary to carry out the purposes of this Act.