the date of such appointment. (2) The Director shall be paid at the rate of basic pay payable for level IV of the Executive Schedule under section 5315 of title 5, United States Code. (i) Staff (1) Subject to paragraphs (2) and (3), the Director, with the approval of the Commission, may appoint and fix the pay of additional personnel. (2) The Director may make such appointments without regard to the provisions of title 5, United States Code, governing appointments in the competitive service, and any personnel so appointed may be paid without regard to the provisions of chapter 51 and subchapter III of chapter 53 of that title relating to classification and General Schedule pay rates, except that an individual so appointed may not receive pay in excess of the annual rate of basic pay payable for GS–18 of the General Schedule. (3) Not more than one-third of the personnel employed by or detailed to the Commission may be on detail from the Department of Defense. (4) Upon request of the Director, the head of any Federal Department or Agency may detail any of the personnel of that Department or Agency to the Commission to assist the Commission in carrying out its duties under this Act. (5) The Comptroller General of the United States shall provide assistance, including the detailing of employees, to the Commission in accordance with an agreement entered into with the Commission. (j) Other authority (1) The Commission may procure by contract, to the extent funds are available, the temporary or intermittent services of experts or consultants pursuant to section 3109 of title 5, United States Code. (2) The Commission may lease space and acquire personal property to the extent funds are available. (k) Funding There are authorized to be appropriated for the Commission such sums as may be necessary for fiscal years 2019 through 2022. Any amounts appropriated under the preceding sentence that remain after the date of the termination of the Commission under subsection (l) shall be deobligated and rescinded and returned to the