Sec.  25.152   Dismissal and return of applications.

   (a) Any application may be dismissed without prejudice as a matter of right
   if the applicant requests its dismissal prior to final Commission action.

   (b) The Commission will dismiss an application for failure to prosecute or
   for failure to respond substantially within a specified time period to
   official correspondence or requests for additional information. Dismissal
   will be without prejudice unless the application is mutually exclusive
   pursuant to  Sec. 25.155, in which case it will be dismissed with prejudice.