In matters argued before a single Judge, as in petitions for review of determinations of government units which are determined in whole or in part upon the record made before the Court, or in matters argued before a panel of Judges, the Court, at any time on its own initiative before its order becomes final, or upon application for reargument pursuant to these rules, may allow reargument before the Court en banc. Such action will be taken only for compelling and persuasive reasons.
210 Pa. Code r. 3723