; and (II) no period of appointment may exceed the date on which the Office of the Special Inspector General for Ukraine Assistance terminates under subsection (o). (2) Employment of experts and consultants The Inspector General may obtain services as authorized by section 3109 of title 5, United States Code, at daily rates not to exceed the equivalent rate prescribed for grade GS–15 of the General Schedule by section 5332 of such title. (3) Contracting authority To the extent and in such amounts as may be provided in advance by appropriations Acts, the Inspector General may enter into contracts and other arrangements for audits, studies, analyses, and other services with public agencies and with private persons, and make such payments as may be necessary to carry out the duties of the Inspector General. (4) Resources The Secretary of State or the Secretary of Defense, as appropriate, shall provide the Inspector General with— (A) appropriate and adequate office space at appropriate locations of the Department of State or the Department of Defense, as the case may be, in Ukraine or at an appropriate United States military installation in the European theater, together with such equipment, office supplies, and communications facilities and services as may be necessary for the operation of such offices, and shall provide necessary maintenance services for such offices and the equipment and facilities located therein