| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Ratification | 17/03/1988 | |
| All Territories under UK Sovereignty | Extension | 10/10/1967 | |
| Antigua | Extension | 10/10/1967 | |
| ANTIGUA AND BARBUDA | Succession | 26/01/1989 | 01/11/1981 |
| Antilles | Extension | 01/01/1986 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Ratification | 10/10/1967 | |
| AUSTRIA | Signature | 20/02/1967 | |
| AUSTRIA | Ratification | 26/02/1968 | |
| AZERBAIJAN | Accession | 12/06/2013 | 09/09/2015 |
| BAHAMAS | Succession | 11/08/1976 | 16/07/1976 |
| BANGLADESH | Accession | 14/01/1986 | |
| BELGIUM | Signature | 27/01/1967 | |
| BELGIUM | Ratification | 31/03/1973 | |
| BENIN | Accession | 02/07/1986 | |
| BOSNIA AND HERZEGOVINA | Accession | 29/09/2020 | |
| BRAZIL | Signature | 02/02/1967 | |
| BRAZIL | Ratification | 05/03/1969 | |
| BRAZIL | Reservation | 05/03/1969 | |
| British Solomon Islands | Extension | 10/10/1967 | |
| Brunei | Extension | 10/10/1967 | |
| BULGARIA | Signature | 27/01/1967 | |
| BULGARIA | Ratification | 19/04/1967 | |
| BURMA | Signature | 22/05/1967 | |
| BURMA | Ratification | 18/03/1970 | |
| CANADA | Signature | 27/01/1967 | |
| CANADA | Ratification | 10/10/1967 | |
| Caribbean part of the Netherlands | Extension | 10/10/2010 | |
| CEYLON | Signature | 10/03/1967 | |
| Channel Islands | Extension | 10/10/1967 | |
| CHILE | Signature | 03/02/1967 | |
| CHINA | Declaration | 12/01/1984 | |
| CHINA | Accession | 12/01/1984 | |
| CHINA | Communication | 03/11/1999 | 20/12/1999 |
| CONGO | Signature | 04/05/1967 | |
| Curacao | Extension | 10/10/2010 | |
| CYPRUS | Signature | 16/02/1967 | |
| CYPRUS | Ratification | 05/07/1972 | |
| CZECH REPUBLIC | Succession | 29/09/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Signature | 27/01/1967 | |
| CZECHOSLOVAKIA | Ratification | 11/05/1967 | |
| DENMARK | Signature | 27/01/1967 | |
| DENMARK | Ratification | 10/10/1967 | |
| Dominica | Extension | 10/10/1967 | |
| ECUADOR | Signature | 16/05/1967 | |
| ETHIOPIA | Signature | 27/01/1967 | |
| FIJI | Succession | 14/08/1972 | 14/07/1972 |
| FINLAND | Signature | 27/01/1967 | |
| FINLAND | Ratification | 12/07/1967 | |
| FRANCE | Signature | 25/09/1967 | |
| FRANCE | Ratification | 05/08/1970 | |
| GAMBIA THE | Signature | 02/06/1967 | |
| GERMANY FEDERAL REPUBLIC | Signature | 27/01/1967 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 10/02/1971 | |
| GHANA | Signature | 03/03/1967 | |
| GREECE | Ratification | 19/01/1971 | |
| GRENADA | Extension | 10/10/1967 | |
| HOLY SEE | Signature | 05/04/1967 | |
| HONG KONG SAR | Application | 05/06/1997 | 01/07/1997 |
| HUNGARY | Signature | 27/01/1967 | |
| HUNGARY | Ratification | 26/06/1967 | |
| ICELAND | Signature | 27/01/1967 | |
| ICELAND | Ratification | 05/02/1968 | |
| INDIA | Signature | 03/03/1967 | |
| INDIA | Ratification | 18/01/1982 | |
| INDONESIA | Signature | 14/02/1967 | |
| INDONESIA | Ratification | 25/06/2002 | |
| IRAN | Signature | 27/01/1967 | |
| IRAQ | Signature | 27/02/1967 | |
| IRAQ | Ratification | 23/09/1969 | |
| IRELAND, REPUBLIC OF | Signature | 27/01/1967 | |
| IRELAND, REPUBLIC OF | Ratification | 19/07/1968 | |
| Isle of Man | Extension | 10/10/1967 | |
| ISRAEL | Signature | 27/01/1967 | |
| ISRAEL | Ratification | 01/03/1977 | |
| ITALY | Signature | 27/01/1967 | |
| ITALY | Ratification | 04/05/1972 | |
| JAMAICA | Signature | 29/06/1967 | |
| JAMAICA | Ratification | 10/08/1970 | |
| JAPAN | Signature | 27/01/1967 | |
| JAPAN | Ratification | 10/10/1967 | |
| KENYA | Accession | 19/01/1984 | |
| KUWAIT | Accession | 20/06/1972 | |
| Land Berlin | Extension | 10/02/1971 | |
| LAOS | Signature | 30/01/1967 | |
| LAOS | Ratification | 15/01/1973 | |
| LEBANON | Signature | 23/02/1967 | |
| LEBANON | Ratification | 31/03/1969 | |
| LUXEMBOURG | Signature | 31/01/1967 | |
| LUXEMBOURG | Ratification | 17/01/2006 | |
| MALAYSIA | Signature | 21/02/1967 | |
| MALTA | Accession | 22/05/2017 | 22/05/2017 |
| MAURITIUS | Succession | 21/04/1969 | 12/03/1968 |
| MEXICO | Signature | 27/01/1967 | |
| MEXICO | Ratification | 31/01/1968 | |
| MOROCCO | Accession | 21/12/1967 | |
| NEPAL | Signature | 06/02/1967 | |
| NEPAL | Ratification | 10/10/1967 | |
| NETHERLANDS THE | Signature | 10/02/1967 | |
| NETHERLANDS THE | Ratification | 10/10/1969 | |
| NEW ZEALAND | Signature | 27/01/1967 | |
| NEW ZEALAND | Ratification | 31/05/1968 | |
| NICARAGUA | Signature | 13/02/1967 | |
| NICARAGUA | Ratification | 14/08/2017 | 14/08/2017 |
| NIGER | Ratification | 17/04/1967 | |
| NIGERIA | Accession | 14/11/1967 | |
| NORWAY | Signature | 03/02/1967 | |
| NORWAY | Ratification | 01/07/1969 | |
| OMAN | Accession | 04/02/2022 | |
| PAKISTAN | Signature | 12/09/1967 | |
| PAKISTAN | Ratification | 08/04/1968 | |
| PAPUA NEW GUINEA | Succession | 27/10/1980 | |
| PARAGUAY | Accession | 22/12/2016 | 22/12/2016 |
| PERU | Ratification | 01/03/1979 | |
| PHILIPPINES | Signature | 27/01/1967 | |
| POLAND | Signature | 27/01/1967 | |
| POLAND | Ratification | 30/01/1968 | |
| PORTUGAL | Accession | 29/05/1996 | |
| PORTUGAL | Communication | 03/11/1999 | 03/11/1999 |
| ROMANIA | Signature | 27/01/1967 | |
| ROMANIA | Ratification | 09/04/1968 | |
| SAN MARINO | Signature | 24/04/1967 | |
| SAN MARINO | Ratification | 03/02/1969 | |
| SEYCHELLES | Accession | 05/01/1978 | |
| SIERRA LEONE | Signature | 27/01/1967 | |
| SIERRA LEONE | Ratification | 25/10/1967 | |
| SINGAPORE | Accession | 10/09/1976 | |
| Sint Maarten | Extension | 10/10/2010 | |
| SLOVAK REPUBLIC | Succession | | 01/01/1993 |
| SLOVENIA | Accession | 08/02/2019 | |
| SOUTH AFRICA | Ratification | 08/10/1968 | |
| Sovereign Base Areas | | | |
| SOVIET UNION | Signature | 27/01/1967 | |
| SOVIET UNION | Ratification | 10/10/1967 | |
| SPAIN | Accession | 27/11/1968 | |
| St Kitts Nevis Anguilla | Extension | 10/10/1967 | |
| St Lucia | Extension | 10/10/1967 | |
| ST VINCENT AND THE GRENADINES | Succession | 13/05/1999 | 27/10/1979 |
| SWAZILAND | Extension | 10/10/1967 | |
| SWEDEN | Signature | 27/01/1967 | |
| SWEDEN | Ratification | 11/10/1967 | |
| SWITZERLAND | Signature | 27/01/1967 | |
| SWITZERLAND | Ratification | 18/12/1969 | |
| THAILAND | Signature | 27/01/1967 | |
| THAILAND | Ratification | 05/09/1968 | |
| TONGA | Extension | 10/10/1967 | |
| TONGA | Succession | 07/07/1971 | |
| TRINIDAD AND TOBAGO | Signature | 24/07/1967 | |
| TUNISIA | Signature | 27/01/1967 | |
| TUNISIA | Ratification | 28/03/1968 | |
| TURKEY | Signature | 27/01/1967 | |
| TURKEY | Ratification | 27/03/1968 | |
| UNITED KINGDOM | Signature | 27/01/1967 | |
| UNITED KINGDOM | Declaration | 14/02/1967 | |
| UNITED KINGDOM | Extension | 10/10/1967 | |
| UNITED KINGDOM | Statement | 10/10/1967 | |
| UNITED KINGDOM | Ratification | 10/10/1967 | |
| UNITED KINGDOM | Notification | 19/06/1997 | 01/07/1997 |
| UNITED STATES OF AMERICA | Signature | 27/01/1967 | |
| UNITED STATES OF AMERICA | Ratification | 10/10/1967 | |
| YUGOSLAVIA | Signature | 27/01/1967 | |
| ZAMBIA | Accession | 28/08/1973 | |