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Charter of the Organisation of American States, OAS, 1948
Entry into force: Thursday, December 13, 1951
Signed by 35 countries, ratified by 35 countries
Signatory countries
| Country | Signature date | Ratification date * | Reservation / Declaration | Comments |
|---|---|---|---|---|
 Antigua and Barbuda
|
Dec 3, 1981 |
Dec 3, 1981 |
- |
|
 Argentina
|
Apr 30, 1948 |
Jan 19, 1956 |
- |
|
 Bahamas
|
Mar 3, 1982 |
Mar 1, 1982 |
- |
|
 Barbados
|
Oct 9, 1967 |
Nov 14, 1967 |
- |
|
 Belize
|
Jan 8, 1991 |
Jan 8, 1991 |
- |
|
 Bolivia
|
Apr 30, 1948 |
Sep 25, 1950 |
(Declaration made at the time of ratification)
THE HONORABLE NATIONAL CONGRESS Resolves: That the Executive Power, at the time of depositing in the Pan American Union the ratification of the Charter of the Organization of American States, signed in Bogotá on April 30, 1948, should make the following declaration: The Government of Bolivia maintains, in agreement with the context of the Bogotá Charter, that "the respect for and the faithful observance of treaties" which is upheld in Articles 5 and 14 as a standard of international relations, does not exclude the revision of those articles by the peaceful procedures which are referred to in Articles 21, 22, and 23 of that Charter, when they affect the fundamental rights of States. |
|
 Brazil
|
Apr 30, 1948 |
Feb 11, 1950 |
- |
|
 Canada
|
Nov 13, 1989 |
Dec 20, 1989 |
- |
|
 Chile
|
Apr 30, 1948 |
May 5, 1953 |
- |
|
 Colombia
|
Apr 30, 1948 |
Jul 12, 1951 |
- |
|
 Costa Rica
|
Apr 30, 1948 |
Oct 30, 1948 |
- |
|
 Cuba
|
Apr 30, 1948 |
Aug 7, 1952 |
- |
|
 Dominica
|
May 22, 1979 |
May 22, 1979 |
- |
|
 Dominican Republic
|
Apr 30, 1948 |
Nov 4, 1949 |
- |
|
 Ecuador
|
Apr 30, 1948 |
Dec 21, 1950 |
- |
|
 El Salvador
|
Apr 30, 1948 |
Aug 15, 1950 |
- |
|
 Grenada
|
May 13, 1975 |
May 13, 1975 |
- |
|
 Guatemala
|
Apr 30, 1948 |
Mar 18, 1951 |
(Reservation made at the time of ratification)
None of the stipulations of the present Charter of the Organization of American States may be considered as an impediment to Guatemala 's assertion of its rights over the territory of Belize by such means as at anytime it may deem advisable.* */ With respect to this reservation, the General Secretariat consulted the signatory governments, in accordance with the procedure established by paragraph 2 of Resolution XXIX of the Eighth International Conference of American States, to ascertain whether they found it acceptable or not. At the request of the Government of Guatemala, this consultation was accompanied by a formal declaration of that Government to the effect that its reservation did not imply any alteration in the Charter of the Organization of American States, and that Guatemala is ready to act at all times within the bounds of international agreements to which it is a party. In view of this declaration, the States that previously did not find the reservation acceptable expressed their acceptance. |
|
 Guyana
|
Aug 1, 1991 |
Aug 1, 1991 |
- |
|
 Haiti
|
Apr 30, 1948 |
Aug 21, 1950 |
- |
|
 Honduras
|
Apr 30, 1948 |
Jan 13, 1950 |
- |
|
 Jamaica
|
Jun 27, 1969 |
Aug 7, 1969 |
- |
|
 Mexico
|
Apr 30, 1948 |
Nov 23, 1948 |
- |
|
 Nicaragua
|
Apr 30, 1948 |
Jun 21, 1950 |
- |
|
 Panama
|
Apr 30, 1948 |
Mar 16, 1951 |
- |
|
 Paraguay
|
Apr 30, 1948 |
Mar 30, 1950 |
- |
|
 Peru
|
Apr 30, 1948 |
May 15, 1952 |
(Reservation made at the time of ratification)
With the reservation that the principles of inter-American solidarity and cooperation and essentially those set forth in the preamble and declarations of the Act of Chapultepec constitute standards for the mutual relations between the American States and juridical bases of the Inter- American system. |
|
 Saint Kitts and Nevis
|
Dec 3, 1984 |
Dec 3, 1984 |
- |
|
 Saint Lucia
|
May 22, 1979 |
May 22, 1979 |
- |
|
 Saint Vincent and the Grenadines
|
Dec 3, 1981 |
Dec 3, 1981 |
- |
|
 Suriname
|
Feb 22, 1977 |
Jan 6, 1977 |
- |
|
 Trinidad and Tobago
|
Mar 13, 1967 |
Mar 14, 1967 |
- |
|
 United States of America
|
Apr 30, 1948 |
Jun 15, 1951 |
(Reservation made at the time of ratification)
That the Senate give its advice and consent to ratification of the Charter with the reservation that none of its provisions shall be considered as enlarging the powers of the Federal Government of the United States or limiting the powers of the several states of the Federal Union with respect to any matters recognized under the Constitution as being within the reserved powers of the several states. |
|
 Uruguay
|
Apr 30, 1948 |
Aug 17, 1955 |
- |
|
 Venezuela
|
Apr 30, 1948 |
Dec 21, 1951 |
- |
|