20 CFR 405.332 - Subpoenas.
(a) When it is reasonably necessary for the full presentation of a claim, an administrative law judge may, on his or her own initiative or at your request, issue subpoenas for the appearance and testimony of witnesses and for the production of any documents that are relevant to an issue at the hearing.
(1) Give the names of the witnesses or documents to be produced;
(2) Describe the address or location of the witnesses or documents with sufficient detail to find them;
(3) State the important facts that the witness or document is expected to show; and
(4) Indicate why these facts could not be shown without that witness or document.
(c) We will pay the cost of issuing the subpoena and pay subpoenaed witnesses the same fees and mileage they would receive if they had been subpoenaed by a Federal district court.
(d) Within five days of receipt of a subpoena, but no later than the date of the hearing, the person against whom the subpoena is directed may ask the administrative law judge to withdraw or limit the scope of the subpoena, setting forth the reasons why the subpoena should be withdrawn or why it should be limited in scope.
(e) Upon failure of any person to comply with a subpoena, the Office of the General Counsel may seek enforcement of the subpoena under section 205(e) of the Act.