; and (ii) certifies that determination to the congressional officials specified in subparagraph (B). (c) Powers and authorities of the Commission (1) Meetings The Commission may meet when, where, and as often as the Commission determines appropriate, except that the Commission shall hold public meetings not less than twice each year. All meetings of the Commission shall be open to the public. (2) Hearings In addition to meetings held under paragraph (1), the Commission may hold hearings to consider issues of fact or law relevant to the Commission’s work. Any hearing held by the Commission shall be open to the public. (3) Access to Information The Commission may secure directly from any agency information and documents necessary to enable the Commission to carry out this Act. Upon request of the Chair of the Commission, the head of that agency shall furnish that information or document to the Commission as soon as possible, but not later than two weeks after the date on which the request was made. (4) Subpoenas (A) In general The Commission may issue subpoenas requiring the attendance and testimony of witnesses and the production of any evidence relating to the duties of the Commission. The attendance of witnesses and the production of evidence may be required from any place within the United States at any designated place of hearing within the United States. (B) Failure to obey a Subpoena If a person refuses to obey a subpoena issued under subparagraph (A), the Commission may apply to a United States district court for an order requiring that person to appear before the Commission to give testimony, produce evidence, or both, relating to the matter under investigation. The application may be made within the judicial district where the hearing is conducted or where that person is found, resides, or transacts business. Any failure to obey the order of the court may be punished by the court as civil contempt. (C) Service of subpoenas The subpoenas of the Commission shall be served in the manner provided for