Countries covered

- Fiji (joined in 1974);
- Papua New Guinea (joined in 1976);
- Solomon Islands (joined in 1984);
- Kiribati (joined in 2000);
- Vanuatu (joined in 2004);
- Samoa (joined in 2005);
- The Republic of Marshall Islands (joined in July 2007);
- Tuvalu (joined in May 2008);
- The Republic of Palau (joined in May 2012);
- Cook Islands (joined in July 2015); and
- Tonga (joined in February 2016).