(a) The right to appear and present evidence. Any party to a hearing has a right to appear before the administrative law judge, either in person or, when the conditions in § 416.1436(c) exist, by video teleconferencing, to present evidence and to state his or her position. A party may also make his or her appearance by means of a designated representative, who may make the appearance in person or by video teleconferencing.
(b) Waiver of the right to appear. You may send the administrative law judge a waiver or a written statement indicating that you do not wish to appear at the hearing. You may withdraw this waiver any time before a notice of the hearing decision is mailed to you. Even if all of the parties waive their right to appear at a hearing, we may notify them of a time and a place for an oral hearing, if the administrative law judge believes that a personal appearance and testimony by you or any other party is necessary to decide the case.
(c) What evidence is admissible at a hearing. The administrative law judge may receive evidence at the hearing even though the evidence would not be admissible in court under the rules of evidence used by the court.
(d) Subpoenas. (1) When it is reasonably necessary for the full presentation of a case, an administrative law judge or a member of the Appeals Council may, on his or her own initiative or at the request of a party, issue subpoenas for the appearance and testimony of witnesses and for the production of books, records, correspondence, papers, or other documents that are material to an issue at the hearing.
(2) Parties to a hearing who wish to subpoena documents or witnesses must file a written request for the issuance of a subpoena with the administrative law judge or at one of our offices at least 5 days before the hearing date. The written request must give the names of the witnesses or documents to be produced; describe the address or location of the witnesses or documents with sufficient detail to find them; state the important facts that the witness or document is expected to prove; and indicate why these facts could not be proven without issuing a subpoena.
(e) Witnesses at a hearing. Witnesses may appear at a hearing in person or, when the conditions in § 416.1436(c) exist, video teleconferencing. They shall testify under oath or affirmation, unless the administrative law judge finds an important reason to excuse them from taking an oath or affirmation. The administrative law judge may ask the witnesses any questions material to the issues and shall allow the parties or their designated representatives to do so.
(f) Collateral estoppel—issues previously decided. An issue at your hearing may be a fact that has already been decided in one of our previous determinations or decisions in a claim involving the same parties, but arising under a different title of the Act or under the Federal Coal Mine Health and Safety Act. If this happens, the administrative law judge will not consider the issue again, but will accept the factual finding made in the previous determination or decision unless there are reasons to believe that it was wrong.
[45 FR 52096, Aug. 5, 1980, as amended at 51 FR 307, Jan. 3, 1986; 68 FR 5221, Feb. 3, 2003; 75 FR 39161, July 8, 2010]