| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
|---|
| Australia | July 14, 1980 | Ratification: May 31, 1982 | June 30, 1982 | |
| Cook Islands | July 14, 1980 | Ratification: November 12, 1980 | January 1, 1981 | |
| Fiji | | Accession: December 2, 1980 | January 1, 1981 | |
| Kiribati | July 14, 1980 | Ratification: July 10, 1981 | August 9, 1981 | |
| Marshall Islands | July 14, 1980 | Ratification: April 28, 1989 | May 28, 1989 | |
| Micronesia (Federated States of) | July 14, 1980 | Ratification: November 29, 1988 | December 29, 1988 | |
| Nauru | | Accession: August 8, 1982 | September 7, 1982 | |
| New Zealand | July 14, 1980 | Ratification: January 1, 1981 | January 1, 1981 | |
| Niue | December 4, 1980 | Ratification: January 22, 1981 | February 21, 1981 | |
| Papua New Guinea | July 14, 1980 | Ratification: December 31, 1980 | January 1, 1981 | |
| Samoa | July 14, 1980 | Ratification: February 24, 1981 | March 26, 1981 | |
| Solomon Islands | December 14, 1980 | Ratification: April 15, 1981 | May 15, 1981 | |
| Tonga | July 14, 1980 | Ratification: December 24, 1980 | January 1, 1981 | |
| Tuvalu | December 4, 1980 | Ratification: May 4, 1981 | June 3, 1981 | |
| Vanuatu | | Accession: November 18, 1981 | December 17, 1981 | |
