246. Service of documents.

Any writ1 or other document required to be served for instituting proceedings2 against a state3 must be served by being transmitted through the Foreign, Commonwealth and Development Office to the state's ministry of foreign affairs and service is deemed to have been effected when the writ or document is received at that ministry4.

Any time for acknowledging service5 (whether prescribed by rules of court or otherwise) begins to run two months after the date on which the writ or document is received at the ministry6. No judgment in default of acknowledgment of service7 may be given against a state except