Wherever it is provided in any British Statute that any act or thing shall or may be made or done by Order in Council, or by the King (or Queen) in Council, or by Proclamation of the King (or Queen) or of the King (or Queen) in Council, then every such act or thing may be made or done in Saorstát Eireann by an Order of the Governor-General of the Irish Free State upon the advice of the Executive Council of the Irish Free State.