Administration, not otherwise provided for, including hire of passenger motor vehicles, reimbursement of the General Services Administration for security guard services, and reimbursement of the Department of Defense for the cost of overseas employee mail, $3,899,000,000: Provided, That expenses for services and assistance authorized under paragraphs (1), (2), (5), and (11) of section 3104(a) of title 38, United States Code, that the Secretary of Veterans Affairs determines are necessary to enable entitled veterans: (1) to the maximum extent feasible, to become employable and to obtain and maintain suitable employment