§  1.253   Time and place of hearing.

   (a) The Commission will specify the day on which and the place at which
   any hearing is to commence.

   (b) The presiding officer will specify the days on which subsequent
   hearing sessions are to be held.

   (c) If the Commission specifies that a hearing is to commence in the
   District of Columbia, it shall be moved therefrom only by order of the
   Commission.

   (d) If the Commission specifies that a hearing is to commence at a
   field location, all appropriate proceedings will be completed at such
   location before the hearing is moved therefrom. When such proceedings
   are completed, the presiding officer may move the hearing from the
   field location specified to another appropriate field location or to
   the District of Columbia.