Her Majesty may by Order in Council from time to time certify who are the Contracting States for the purposes of the Convention and in respect of what territories they are respectively parties.

An Order in Council under this section may also certify whether Her Majesty's Government in the United Kingdom or any other Contracting State have made or withdrawn a declaration in accordance with article 31 or 32.

An Order in Council under this section shall, except so far as it has been superseded by a subsequent Order, be conclusive evidence of the matters so certified.