such advisory opinion by filing a petition in the United States Court of Appeals for the District of Columbia Circuit. (2) Scope of review For purposes of conducting the judicial review described in paragraph (1), the provisions of section 706 of title 5, United States Code, shall apply. 364. Issuance and enforcement of subpoenas (a) Issuance by the Chair If the Administration is conducting an investigation pursuant to section 371 or 372, the Chair shall, on behalf of the Administration, have the power to require by subpoena the attendance and testimony of witnesses and the production of all documentary evidence relating to the execution of the Administration’s duties. (b) Issuance by an Administrative Law Judge Any administrative law judge presiding over an enforcement action pursuant to section 373 shall have the power to require by subpoena the attendance and testimony of witnesses and the production of all documentary evidence relating to the administrative law judge’s duties. (c) Issuance and Enforcement of Subpoenas (1) Issuance Subpoenas issued under subsection (a) or (b) shall bear the signature of the Chair or an administrative law judge, respectively, and shall be served by any person or class of persons designated by the Chair or administrative law judge for that purpose. (2) Enforcement In the case of contumacy or failure to obey a subpoena issued under subsection (a) or (b), the Federal district court for the judicial district in which the subpoenaed person resides, is served, or may be found may issue an order requiring such person to appear at any designated place to testify or to produce documentary or other evidence. Any failure to obey the order of the court may be punished by the court as a contempt of that court. (d) Witness Allowances and Fees Section 1821 of title 28, United States Code, shall apply to witnesses requested or subpoenaed to appear at any hearing of the Administration. The per diem and mileage allowances for witnesses shall be paid from funds available to pay the expenses of