for research to inform the deliberations of the Commission. (4) The Commission may use the United States mails in the same manner and under the same conditions as other agencies of the Federal Government. (g) Commission personnel matters (1) Detail of Federal employees On the affirmative vote of 2/3 of the members of the Commission and the approval of the appropriate Federal agency head, an employee of the Federal Government at GS–13 level or higher may be detailed to the Commission without reimbursement, and such detail shall be without interruption or loss of civil service status, benefits, or privileges. (2) Staff (A) In general (i) Appointment and compensation The chairperson, in accordance with rules agreed upon by the Commission, may appoint and fix the compensation of a staff director and such other personnel as may be necessary to enable the Commission to carry out its functions, without regard to the provisions of title 5, United States Code, governing appointments in the competitive service, and without regard to the provisions of chapter 51 and subchapter III of chapter 53 of such title relating to classification and General Schedule pay rates, except that no rate of pay fixed under this subsection may exceed the equivalent of that payable for a position at Level V of the Executive Schedule under section 5316 of title 5, United States Code. (ii) Personnel as Federal employees (I) In general Any personnel of the Commission who are employees shall be employees under section 2105 of title 5, United States Code, for purposes of chapters 63, 81, 83, 84, 85, 87, 89, and 90 of that title. (II) Members of the commission Subparagraph (I) shall not be construed to apply to members of the Commission. (B) Volunteer services Notwithstanding section 1342 of title 31, United States Code, the Commission may accept and use voluntary and uncompensated services as the Commission determines necessary. (h) Contracts for research (1) Researchers and experts On an affirmative vote of 2/3 of the members of the Commission,