Sec.  1.338   Subpena forms.

   (a) Subpena forms, marked “Original”, “Duplicate”, and “Triplicate”, and
   bearing the Commission's seal, may be obtained from the Commission's Dockets
   Division. These forms are to be completed and submitted with any request for
   issuance of a subpena.

   (b) If the request for issuance of a subpena is granted, the “Original” and
   “Duplicate” copies of the subpena are returned to the person who submitted
   the request. The “Triplicate” copy is retained for the Commission's files.

   (c) The “Original” copy of the subpena includes a form for proof of service.
   This form is to be executed by the person who effects service and returned
   by him to the Secretary of the Commission or, if so directed on the subpena,
   to the official before whom the person named in the subpena is required to
   appear.

   (d) The “Duplicate” copy of the subpena shall be served upon the person
   named therein and retained by him. This copy should be presented in support
   of any claim for witness fees or mileage allowances for testimony on behalf
   of the Commission.