(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.