The tribunal may decide whether the parties shall present any written statements in addition to statements of claims and counterclaims and statements of defense, and it shall fix the periods of time for submitting any such statements.

2.       The periods of time fixed by the tribunal for the communication of such written statements should not exceed 45 days.  However, the tribunal may extend such time limits if it considers such an extension justified.

Notices

Article 18

1.       Unless otherwise agreed by the parties or ordered by the tribunal, all notices, statements and written communications may be served on a party by air mail, air courier, facsimile transmission, telex, telegram or other written forms of electronic communication addressed to the party or its representative at its last known address or by personal service.