| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Ratification | | 01/01/1971 |
| ALBANIA | Ratification | | 01/01/1971 |
| ALGERIA | Ratification | | 01/01/1971 |
| ANGOLA | Acceptance | | 15/08/1976 |
| Anguilla | Extension | 01/01/1971 | |
| ARGENTINA | Ratification | | 01/01/1971 |
| AUSTRIA | Ratification | | 01/01/1971 |
| BAHRAIN | Ratification | | 01/01/1971 |
| BARBADOS | Ratification | | 01/01/1971 |
| BELARUS | Ratification | | 01/01/1971 |
| BELGIUM | Ratification | | 01/01/1971 |
| Bermuda | Extension | 01/01/1971 | |
| BOLIVIA | Ratification | | 01/01/1971 |
| BRAZIL | Ratification | | 01/01/1971 |
| British Virgin Islands | Extension | 01/01/1971 | |
| BULGARIA | Ratification | | 01/01/1971 |
| BURMA | Ratification | | 01/01/1971 |
| BURUNDI | Ratification | | 01/01/1971 |
| CAMBODIA | Ratification | | 01/01/1971 |
| CANADA | Ratification | | 01/01/1971 |
| CAPE VERDE | Acceptance | | 05/04/1976 |
| Cayman Islands | Extension | 01/01/1971 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | | 01/01/1971 |
| CEYLON | Ratification | | 01/01/1971 |
| CHAD | Ratification | | 01/01/1971 |
| CHILE | Ratification | | 01/01/1971 |
| CHINA | Ratification | | 01/01/1971 |
| COLOMBIA | Ratification | | 01/01/1971 |
| COMOROS | Acceptance | | 09/03/1976 |
| CONGO, DEMOCRATIC REPUBLIC OF | Ratification | | 01/01/1971 |
| CONGO, PEOPLES REPUBLIC OF | Ratification | | 01/01/1971 |
| COSTA RICA | Ratification | | 01/01/1971 |
| COTE D'IVOIRE | Ratification | | 01/01/1971 |
| CUBA | Ratification | | 01/01/1971 |
| CYPRUS | Ratification | | 01/01/1971 |
| CZECHOSLOVAKIA | Ratification | | 01/01/1971 |
| DAHOMEY | Ratification | | 01/01/1971 |
| DENMARK | Ratification | | 01/01/1971 |
| DJIBOUTI | Acceptance | | 10/06/1978 |
| DOMINICAN REPUBLIC | Ratification | | 01/01/1971 |
| ECUADOR | Ratification | | 01/01/1971 |
| EQUATORIAL GUINEA | Ratification | | 01/01/1971 |
| ETHIOPIA | Ratification | | 01/01/1971 |
| Falkland Islands | Extension | 01/01/1971 | |
| FINLAND | Ratification | | 01/01/1971 |
| FRANCE | Ratification | | 01/01/1971 |
| GABON | Ratification | | 01/01/1971 |
| GERMANY FEDERAL REPUBLIC | Ratification | | 01/01/1971 |
| GHANA | Ratification | | 01/01/1971 |
| Gibraltar | Extension | 01/01/1971 | |
| GREECE | Ratification | | 01/01/1971 |
| GUATEMALA | Ratification | | 01/01/1971 |
| GUINEA | Ratification | | 01/01/1971 |
| GUYANA | Ratification | | 01/01/1971 |
| HAITI | Ratification | | 01/01/1971 |
| HONDURAS | Ratification | | 01/01/1971 |
| HUNGARY | Ratification | | 01/01/1971 |
| ICELAND | Ratification | | 01/01/1971 |
| INDIA | Ratification | | 01/01/1971 |
| INDONESIA | Ratification | | 01/01/1971 |
| IRAN | Ratification | | 01/01/1971 |
| IRAQ | Ratification | | 01/01/1971 |
| IRELAND, REPUBLIC OF | Ratification | | 01/01/1971 |
| ISRAEL | Ratification | | 01/01/1971 |
| ITALY | Ratification | | 01/01/1971 |
| ITALY | Withdrawal Res. | 16/05/1977 | |
| JAMAICA | Ratification | | 01/01/1971 |
| JAPAN | Ratification | | 01/01/1971 |
| JORDAN | Ratification | | 01/01/1971 |
| KENYA | Ratification | | 01/01/1971 |
| KOREA REPUBLIC OF | Ratification | | 01/01/1971 |
| KUWAIT | Ratification | | 01/01/1971 |
| LAOS | Ratification | | 01/01/1971 |
| LEBANON | Ratification | | 01/01/1971 |
| LESOTHO | Ratification | | 01/01/1971 |
| LIBERIA | Ratification | | 01/01/1971 |
| LIBYA | Ratification | | 01/01/1971 |
| LIECHTENSTEIN | Ratification | | 01/01/1971 |
| LUXEMBOURG | Ratification | | 01/01/1971 |
| MADAGASCAR | Ratification | | 01/01/1971 |
| MALAWI | Ratification | | 01/01/1971 |
| MALAYSIA | Ratification | | 01/01/1971 |
| MALDIVES | Ratification | | 01/01/1971 |
| MALI | Ratification | | 01/01/1971 |
| MALTA | Ratification | | 01/01/1971 |
| MAURITANIA | Ratification | | 01/01/1971 |
| MAURITIUS | Ratification | | 01/01/1971 |
| MEXICO | Ratification | | 01/01/1971 |
| MONACO | Ratification | | 01/01/1971 |
| MONGOLIA | Ratification | | 01/01/1971 |
| Montserrat | Extension | 01/01/1971 | |
| MOROCCO | Ratification | | 01/01/1971 |
| NEPAL | Ratification | | 01/01/1971 |
| NETHERLANDS THE | Ratification | | 01/01/1971 |
| NEW ZEALAND | Ratification | | 01/01/1971 |
| NICARAGUA | Ratification | | 01/01/1971 |
| NIGER | Ratification | | 01/01/1971 |
| NIGERIA | Ratification | | 01/01/1971 |
| NORWAY | Ratification | | 01/01/1971 |
| PANAMA | Ratification | | 01/01/1971 |
| PARAGUAY | Ratification | | 01/01/1971 |
| PERU | Ratification | | 01/01/1971 |
| PHILIPPINES | Ratification | | 01/01/1971 |
| Pitcairn Islands | Extension | 01/01/1971 | |
| POLAND | Ratification | | 01/01/1971 |
| PORTUGAL | Ratification | | 01/01/1971 |
| QATAR | Ratification | | 01/01/1971 |
| ROMANIA | Ratification | | 01/01/1971 |
| RWANDA | Ratification | | 01/01/1971 |
| SAINT LUCIA | Acceptance | | 11/02/1981 |
| SALVADOR | Ratification | | 01/01/1971 |
| SAN MARINO | Acceptance | | 12/08/1980 |
| SAO TOME AND PRINCIPE | Acceptance | | 21/06/1976 |
| SAUDI ARABIA | Ratification | | 01/01/1971 |
| SENEGAL | Ratification | | 01/01/1971 |
| SEYCHELLES | Acceptance | | 11/12/1979 |
| SIERRA LEONE | Ratification | | 01/01/1971 |
| SOMALI DEMOCRATIC REPUBLIC | Ratification | | 01/01/1971 |
| South Georgia And South Sandwich Islands | Extension | 01/01/1971 | |
| SOVIET UNION | Ratification | | 01/01/1971 |
| SPAIN | Ratification | | 01/01/1971 |
| St Helena And Dependencies | Extension | 01/01/1971 | |
| SUDAN | Ratification | | 01/01/1971 |
| SURINAME | Ratification | | 01/01/1971 |
| SURINAME | Acceptance | 16/03/1976 | 16/06/1976 |
| SWEDEN | Ratification | | 01/01/1971 |
| SWITZERLAND | Ratification | | 01/01/1971 |
| SWITZERLAND | Acceptance | | 20/05/1981 |
| SYRIA | Ratification | | 01/01/1971 |
| TANZANIA | Ratification | | 01/01/1971 |
| THAILAND | Ratification | | 01/01/1971 |
| TOGO | Ratification | | 01/01/1971 |
| TRINIDAD AND TOBAGO | Ratification | | 01/01/1971 |
| TUNISIA | Ratification | | 01/01/1971 |
| TURKEY | Ratification | | 01/01/1971 |
| Turks And Caicos Islands | Extension | 01/01/1971 | |
| UGANDA | Ratification | | 01/01/1971 |
| UKRAINE | Ratification | | 01/01/1971 |
| UNITED KINGDOM | Acceptance | 01/01/1971 | 01/01/1971 |
| UNITED STATES OF AMERICA | Ratification | | 01/01/1971 |
| UPPER VOLTA | Ratification | | 01/01/1971 |
| URUGUAY | Ratification | | 01/01/1971 |
| VATICAN CITY | Ratification | | 01/01/1971 |
| VENEZUELA | Ratification | | 01/01/1971 |
| VIETNAM | Ratification | | 01/01/1971 |
| WESTERN SAMOA | Ratification | | 01/01/1971 |
| YEMEN | Ratification | | 01/01/1971 |
| YEMEN, PEOPLES'S DEMOCRATIC REPUBLIC OF | Ratification | | 01/01/1971 |
| YUGOSLAVIA | Ratification | | 01/01/1971 |
| ZAMBIA | Ratification | | 01/01/1971 |
| ZIMBABWE | Acceptance | | 16/08/1980 |