210 Pa. Code Rule 2501 – Post-submission Communications.

(a) General rule.—After the argument of a case has been concluded or the case has been submitted, no brief, memorandum or letter relating to the case shall be presented or submitted, either directly or indirectly, to the court or any judge thereof, except upon application or when expressly allowed at bar at the time of the argument.
(b) Change in status of authorities.—If any case or other authority relied upon in the brief of a party is expressly reversed, modified, overruled or otherwise affected so as to materially affect its status as an authoritative statement of the law for which originally cited in the jurisdiction in which it was decided, enacted or promulgated, any counsel having knowledge thereof shall file a letter, which shall not contain any argument, transmitting a copy of the slip opinion or other document wherein the authority relied upon was affected.
Official Note
Subdivision (a) is based on former Supreme Court Rule 34, former Superior Court Rule 26, and former Commonwealth Court Rule 73, and makes no change in substance. Subdivision (b) is new. The term ‘‘authorities’’ as used therein includes statutes and regulations, as well as court decisions.