Sec.  1.254   Nature of the hearing; burden of proof.

   Any hearing upon an application shall be a full hearing in which the
   applicant and all other parties in interest shall be permitted to
   participate but in which both the burden of proceeding with the introduction
   of evidence upon any issue specified by the Commission, as well as the
   burden of proof upon all such issues, shall be upon the applicant except as
   otherwise provided in the order of designation.

   (Sec. 309, 48 Stat. 1085, as amended; 47 U.S.C. 309)