; and (B) hold an appropriate security clearance granted or recognized under the standard procedures and eligibility criteria of the agency, including any special access approval required for access to such records or materials. (3) Restriction on use The members of the Commission and the members of the staff of the Commission may not use any information acquired in the course of their official activities on the Commission for nonofficial purposes. (4) Need to know For purposes of any law or regulation governing access to classified information that pertains to the national security of the United States and to facilitate the advisory functions of the Commission under this Act, a member of the Commission or a member of the staff of the Commission seeking access to a record or material under this Act shall be deemed for purposes of this subsection to have a need to know the contents of the record or material. (5) Rule of construction A reference in this subsection to the staff of the Commission includes individuals described in sections 6(d) and 6(e). (d) Mails The Commission may use the United States mails in the same manner and under the same conditions as other departments and agencies of the United States. (e) Gifts The Commission may accept, use, and dispose of gifts or donations of services or property. (f) Administrative support services The Administrator of General Services shall provide to the Commission, on a reimbursable basis, such administrative support services as the Commission may request. 6. Personnel matters (a) Compensation of members Members of the Commission shall not be compensated by reason of their service on the Commission. (b) Travel expenses The members of the Commission shall be allowed travel expenses, including per diem in lieu of subsistence, at rates authorized for employees of agencies under subchapter I of chapter 57 of title 5, United States Code, while away from their homes or regular places of business in the performance of services for the Commission. (c) Staff Subject to such