Under its Article 67, the ICSID Convention is open for signature on behalf of:

• all States members of the International Bank for Reconstruction and Development (the World Bank); and
• any other State, which is a party to the Statute of the International Court of Justice, on the invitation of the ICSID Administrative Council by a vote of two-third of its members.

A formal act of ratification, acceptance or approval is required by the signatory State as a prerequisite for the entry into force of the ICSID Convention for that State. Such instrument is deposited with the Secretary's Department of the World Bank, which is the depositary of the Convention. In accordance with its Article 68(2), the Convention enters info force for the State concerned 30 days after the date of deposit of the instrument.

More details on membership procedures are available in the Memorandum on Signature and Ratification, Acceptance or Approval of the Convention on the Settlement of Investment Disputes between States and Nationals of Other States.

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