Article 73 If the applicant informs the Court in writing that he wishes to discontinue the proceedings, the President shall order the case to be removed from the register and shall give a decision as to costs in accordance with Article 66(8) of these Rules. CHAPTER VIII SERVICE Article 74 1. Where these Rules require that a document be served on a person, the Chief Registrar shall ensure that service is effected at that person's address for service either by the dispatch of a copy of the document by registered post with a form for acknowledgement of receipt or by personal delivery of the copy against a receipt. 2. The Chief Registrar shall prepare and certify the copies of documents to be served, save where the parties themselves supply the copies in accordance with Article 32(1) of these Rules. 3. Where, in accordance with the second subparagraph of Article 33(3), the addressee has agreed that service is to be effected on him by telefax or other technical means of communication, any procedural document other than a judgment or order of the Court may be served by the transmission of a copy of the document by such means. 4. Where, for technical reasons or on account of the nature or length of the document, such transmission is impossible or impracticable, the document shall be served, if the addressee has failed to state an address for service, at his address in accordance with the procedures laid down in paragraph 1 of this article. 5. The addressee shall be so advised by telefax or other technical means of communication. 6. Service shall then be deemed to have been effected on the addressee by registered post on the tenth day following the lodging of the registered letter at the post office of the place where the Court has its seat, unless it is shown by the acknowledgement of receipt that the letter was received on a different date or the addressee informs the Chief Registrar, within three weeks of being advised by telefax or other technical means of communication, that the document to be served has not reached him.