49 U.S.C. § 46104: Evidence

subpoena witnesses and records related to a matter involved in the hearing or investigation from any place in the United States to the designated place of the hearing or investigation; administer oaths; examine witnesses; and receive evidence at a place in the United States the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration designates. If a person disobeys a subpoena, the Secretary, the Administrator of the Transportation Security Administration, the Administrator of the Federal Aviation Administration, or a party to a proceeding before the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration may petition a court of the United States to enforce the subpoena. A judicial proceeding to enforce a subpoena under this section may be brought in the jurisdiction in which the proceeding or investigation is conducted. The court may punish a failure to obey an order of the court to comply with the subpoena as a contempt of court. In a proceeding or investigation, the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration may order a person to give testimony by deposition and to produce records. If a person fails to be deposed or to produce records, the order may be enforced in the same way a subpoena may be enforced under subsection (b) of this section. A deposition may be taken before an individual designated by the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration and having the power to administer oaths. Before taking a deposition, the party or the attorney of the party proposing to take the deposition must give reasonable notice in writing to the opposing party or the attorney of record of that party. The notice shall state the name of the witness and the time and place of taking the deposition. The testimony of a person deposed under this subsection shall be under oath. The person taking the deposition shall prepare, or cause to be prepared, a transcript of the testimony taken. The transcript shall be subscribed by the deponent. Each deposition shall be filed promptly with the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration. by a consular officer or an individual commissioned by the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration or agreed on by the parties by written stipulation filed with the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration; or under letters rogatory issued by a court of competent jurisdiction at the request of the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration. A witness summoned before the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration or whose deposition is taken under this section and the individual taking the deposition are each entitled to the same fee and mileage that the witness and individual would have been paid for those services in a court of the United States. Under regulations of the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration, the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration shall pay the necessary expenses incident to executing, in another country, a commission or letter rogatory issued at the initiative of the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration. When designated by the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration, an employee appointed under section 3105 of title 5 may conduct a hearing, subpoena witnesses, administer oaths, examine witnesses, and receive evidence at a place in the United States the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration designates. On request of a party, the Secretary, Administrator of the Transportation Security Administration, or Administrator of the Federal Aviation Administration shall hear or receive argument.