this Act, so much of the personnel, property, records, and unexpended balances of appropriations, allocations, and other funds employed, used, held, available, or to be made available in connection with a function transferred to an official or agency by this Act shall be available to the official or the head of that agency, respectively, at such time or times as the Director of the Office of Management and Budget directs for use in connection with the functions transferred. 11. Delegation and assignment Except as otherwise expressly prohibited by law, an official to whom functions are transferred under this Act (including the head of any office to which functions are transferred under this Act) may delegate any of the functions so transferred to such officers and employees of the office of the official as the official may designate, and may authorize successive redelegations of such functions as may be necessary or appropriate. No delegation of functions under this section or under any other provision of this Act shall relieve the official to whom a function is transferred under this Act of responsibility for the administration of the function. 12. Authority of the Secretary of the Treasury with respect to functions transferred (a) Determinations If necessary, the Secretary shall make any determination of the functions that are transferred under this Act. (b) Incidental transfers The Secretary, at such time or times as the Secretary shall provide, may make such determinations as may be necessary with regard to the functions transferred by this Act, and to make such additional incidental dispositions of personnel, assets, liabilities, grants, contracts, property, records, and unexpended balances of appropriations, authorizations, allocations, and other funds held, used, arising from, available to, or to be made available in connection with such functions, as may be necessary to carry out the provisions of this Act. 13. Savings provisions (a) Legal documents All orders, determinations, rules, regulations, permits,