Cono OCT sestavljajo naslednje države: Anguila, Aruba, britanska ozemlja na Antarktiki, britansko ozemlje v Indijskem oceanu, Caymanski otoki, Falklandski otoki in odvisna ozemlja, Francoska Polinezija, francoska južna in antarktična ozemlja, Grenlandija, Mayotte, Montserrat, Nizozemski Antili (Bonaire, Curaçao, Saba, Saint-Eustache, Saint-Martin (južni), Nova Kaledonija in odvisna ozemlja, Saint-Pierre-et-Miquelon, južna Georgija, južni Sandwich otoki, otoki Turks in Caicos, otoki Wallis-et-Futuna.
'the OCT Area' means Anguilla, Aruba, British Virgin Islands, Cayman Islands, Falkland Islands, French Polynesia, French Southern and Antarctic Territories, Greenland, Mayotte, Monserrat, Netherlands Antilles, (Bonaire, Curacao, Saba, St Eustatius, St Maarten (South), New Caledonia and Dependencies, St Pierre et Miquelon, South Georgia and South Sandwich Islands, Turks and Caicos Islands and Wallis and Futuna Islands.