72. Holders of a taxi owner’s permit specializing in limousine or “de grand luxe” limousine services and holders of a taxi driver’s permit who drive limousines or “de grand luxe” limousines must not display any commercial notices inside or outside their limousine or “de grand luxe” limousine, install a domelight or sign, or equip the limousine or “de grand luxe” limousine with a taximeter or other similar meter.