of the executive director and any other personnel appointed under paragraph (1). (B) Limitation The Chair of the Centennial Commission may not fix the compensation of the executive director or other personnel appointed under paragraph (1) at a rate that exceeds the rate payable for level IV of the Executive Schedule under section 5315 of title 5, United States Code. (d) Detail of government employees Upon request of the Centennial Commission, the head of any Federal department or agency may detail, on a reimbursable basis, any employee of that department or agency to the Centennial Commission to assist it in carrying out its duties under this Act. (e) Procurement of temporary and intermittent services The Chair of the Centennial Commission may procure temporary and intermittent services under section 3109(b) of title 5, United States Code. (f) Acceptance of voluntary services Notwithstanding section 1342 of title 31, United States Code, the Centennial Commission may accept and use voluntary and uncompensated services as the Centennial Commission deems necessary. 7. Termination of Centennial Commission (a) In general The Centennial Commission shall terminate on the earlier of— (1) the date that is 30 days after the date the completion of the activities under this Act honoring the centennial observation of the passage and ratification of the 19th Amendment