(a) Until the notification by the Center of the establishment of the Tribunal, any written statement, notice or other communication required or allowed under these Rules shall be submitted by a party to the Center and a copy thereof shall at the same time be transmitted by that party to the other party.
(b) Any written statement, notice or other communication so sent to the Center shall be sent in a number of copies equal to the number required to provide one copy for the Tribunal and one for the Center.
(c) After the notification by the Center of the establishment of the Tribunal, any written statements, notices or other communications shall be submitted by a party directly to the Tribunal and a copy thereof shall at the same time be supplied by that party to the other party.
(d) The Tribunal shall send to the Center a copy of each order or other decision that it makes.