| Countries/Territories |
Entry into force |
Ratification * |
Simple signature |
| Afghanistan |
- |
- |
Oct 30, 1958
|
| Argentina |
- |
- |
Apr 29, 1958
|
| Australia |
Mar 20, 1966
|
May 14, 1963
[1]
|
Oct 30, 1958
|
| Belgium |
Feb 5, 1972
|
Jan 6, 1972
[2]
|
- |
| Burkina Faso |
Mar 20, 1966
|
Oct 4, 1965
[2]
|
- |
| Bosnia and Herzegovina |
Jan 12, 1994
|
Jan 12, 1994
[4]
|
- |
| Bolivia (Plurinational State of) |
- |
- |
Oct 17, 1958
|
| Canada |
- |
- |
Apr 29, 1958
|
| Switzerland |
Jun 17, 1966
|
May 18, 1966
[1]
|
Oct 22, 1958
|
| Colombia |
Mar 20, 1966
|
Jan 3, 1963
[1]
|
Apr 29, 1958
|
| Costa Rica |
- |
- |
Apr 29, 1958
|
| Cuba |
- |
- |
Apr 29, 1958
|
| Denmark |
Oct 26, 1968
|
Sep 26, 1968
[1]
|
Apr 29, 1958
|
| Dominican Republic |
Mar 20, 1966
|
Aug 11, 1964
[1]
|
Apr 29, 1958
|
| Spain |
Mar 27, 1971
|
Feb 25, 1971
[2]
|
- |
| Finland |
Mar 20, 1966
|
Feb 16, 1965
[1]
|
Oct 27, 1958
|
| Fiji |
Mar 25, 1971
|
Mar 25, 1971
[4]
|
- |
| France |
Oct 18, 1970
|
Sep 18, 1970
[1]
|
Oct 30, 1958
|
| United Kingdom |
Mar 20, 1966
|
Mar 14, 1960
[1]
|
Sep 9, 1958
|
| Ghana |
- |
- |
Apr 29, 1958
|
| Haiti |
Mar 20, 1966
|
Mar 29, 1960
[1]
|
Apr 29, 1958
|
| Indonesia |
- |
- |
May 8, 1958
|
| Ireland |
- |
- |
Oct 2, 1958
|
| Iran, Islamic Republic of |
- |
- |
May 28, 1958
|
| Iceland |
- |
- |
Apr 29, 1958
|
| Israel |
- |
- |
Apr 29, 1958
|
| Jamaica |
Mar 20, 1966
|
Apr 16, 1964
[4]
|
- |
| Kenya |
Jul 20, 1969
|
Jun 20, 1969
[2]
|
- |
| Cambodia |
Mar 20, 1966
|
Mar 18, 1960
[2]
|
- |
| Lebanon |
- |
- |
May 29, 1958
|
| Liberia |
- |
- |
May 27, 1958
|
| Sri Lanka |
- |
- |
Oct 30, 1958
|
| Lesotho |
Oct 23, 1973
|
Oct 23, 1973
[4]
|
- |
| Madagascar |
Mar 20, 1966
|
Jul 31, 1962
[2]
|
- |
| Mexico |
Sep 1, 1966
|
Aug 2, 1966
[2]
|
- |
| Mauritius |
Oct 5, 1970
|
Oct 5, 1970
[4]
|
- |
| Malawi |
Mar 20, 1966
|
Nov 3, 1965
[2]
|
- |
| Malaysia |
Mar 20, 1966
|
Dec 21, 1960
[2]
|
- |
| Nigeria |
Mar 20, 1966
|
Jun 26, 1961
[4]
|
- |
| Netherlands |
Mar 20, 1966
|
Feb 18, 1966
[1]
|
Oct 31, 1958
|
| Nepal |
- |
- |
Apr 29, 1958
|
| New Zealand |
- |
- |
Oct 29, 1958
|
| Pakistan |
- |
- |
Oct 31, 1958
|
| Panama |
- |
- |
May 2, 1958
|
| Portugal |
Mar 20, 1966
|
Jan 8, 1963
[1]
|
Oct 28, 1958
|
| Senegal |
Mar 20, 1966
|
Apr 25, 1961
[2]
|
- |
| Solomon Islands |
Sep 3, 1981
|
Sep 3, 1981
[4]
|
- |
| Sierra Leone |
Mar 20, 1966
|
Mar 13, 1962
[4]
|
- |
| Thailand |
Aug 1, 1968
|
Jul 2, 1968
[1]
|
Apr 29, 1958
|
| Tonga |
Jun 29, 1971
|
Jun 29, 1971
[4]
|
- |
| Trinidad and Tobago |
Apr 11, 1966
|
Apr 11, 1966
[4]
|
- |
| Tunisia |
- |
- |
Oct 30, 1958
|
| Uganda |
Mar 20, 1966
|
Sep 14, 1964
[2]
|
- |
| Uruguay |
- |
- |
Apr 29, 1958
|
| United States of America |
Mar 20, 1966
|
Apr 12, 1961
[1]
|
Sep 15, 1958
|
| Venezuela, Boliv. Rep. of |
Mar 20, 1966
|
Jul 10, 1963
[1]
|
Oct 30, 1958
|
| Serbia |
Mar 12, 2001
|
Mar 12, 2001
[4]
|
- |
| South Africa |
Mar 20, 1966
|
Apr 9, 1963
[2]
|
- |
| Montenegro |
Oct 23, 2006
|
Oct 23, 2006
[4]
|
- |
| Congo |
Jan 4, 2013
|
Dec 5, 2012
[2]
|
- |
* [1] Ratification
[2] Accession/approbation
[3] Acceptance/approval
[4] Succession
[5] Consent to be bound
[6] Definite signature