Rule *440 - Service of Papers(A) Unless otherwise provided by statute or rule of Court, a copy of each paper filed in any case other than the writ or complaint by which an action is commenced, or other original process, shall be served by the party filing it upon all other parties to the litigation or their attorneys of record. Such service shall be complete upon mailing and proof thereof shall be attached to the paper at the time of filing with the Office of Judicial Records.(B) In all cases in which the validity, sufficiency, or constitutionality of an ordinance of city council, or regulation adopted by an executive official pursuant to councilman's authorization, appears from the pleadings to be drawn in question, it shall be the duty of the party raising the same to serve notice thereof, in writing, accompanied by a copy of the pleadings to date, on the City Solicitor within forty-eight (48) hours after the said pleading shall be filed.(C) Whenever any person, having been served with a petition, rule, notice, pleading or process, original or interlocutory, fails to appear in response thereto, proof of service of the same must be filed in the case before the Court will act thereon. Former Rule 42; originally Star Rule *327; paragraph A amended by the Board of Judges, General Court Regulation 86-5, effective 8/4/1986.