Constitution of the World Health Organisation

Party

South Sudan added

• Ratification: 27-09-2011 (A)
• Entry into force: 27-09-2011
• Reservations / Declarations: No
• Objections: No

Party

United States of America modified

• Renunciation: 22-01-2025
• Termination: 22-01-2026

General information

• Entry into force: 07-04-1948

Kingdom part

Netherlands (in Europe)

• Entry into force: 07-04-1948

Netherlands (Bonaire)

• Entry into force: 10-10-2010

Netherlands (Sint Eustatius)

• Entry into force: 10-10-2010

Netherlands (Saba)

• Entry into force: 10-10-2010

Aruba

• Entry into force: 01-01-1986

Curaçao

• Entry into force: 10-10-2010

Sint Maarten

• Entry into force: 10-10-2010

Party

Afghanistan

• Ratification: 19-04-1948 (R)
• Entry into force: 19-04-1948

Albania

• Signature: 22-07-1946
• Ratification: 26-05-1947 (R)
• Entry into force: 07-04-1948
• Renunciation: 25-02-1950
• Termination: 25-02-1950

Algeria

• Ratification: 08-11-1962 (R)
• Entry into force: 08-11-1962

Andorra

• Ratification: 15-01-1997 (R)
• Entry into force: 15-01-1997

Angola

• Ratification: 15-05-1976 (R)
• Entry into force: 15-05-1976

Antigua and Barbuda

• Ratification: 12-03-1984 (R)
• Entry into force: 12-03-1984

Argentina

• Signature: 22-07-1946
• Ratification: 22-10-1948 (R)
• Entry into force: 22-10-1948

Armenia

• Ratification: 04-05-1992 (R)
• Entry into force: 04-05-1992

Australia

• Signature: 22-07-1946
• Ratification: 02-02-1948 (R)
• Entry into force: 07-04-1948

Austria

• Signature: 22-07-1946
• Ratification: 30-06-1947 (R)
• Entry into force: 07-04-1948

Azerbaijan

• Ratification: 02-10-1992 (R)
• Entry into force: 02-10-1992

Bahamas

• Ratification: 01-04-1974 (R)
• Entry into force: 01-04-1974

Bahrain

• Ratification: 02-11-1971 (R)
• Entry into force: 02-11-1971

Bangladesh

• Ratification: 19-05-1972 (R)
• Entry into force: 19-05-1972

Barbados

• Ratification: 25-04-1967 (R)
• Entry into force: 25-04-1967

Belarus

• Signature: 22-07-1946
• Ratification: 07-04-1948 (R)
• Entry into force: 07-04-1948
• Renunciation: 14-02-1949
• Termination: 14-02-1949

Belgium

• Signature: 22-07-1946
• Ratification: 25-06-1948 (R)
• Entry into force: 25-06-1948

Belize

• Ratification: 23-08-1990 (R)
• Entry into force: 23-08-1990

Benin

• Ratification: 20-09-1960 (R)
• Entry into force: 20-09-1960

Bhutan

• Ratification: 08-03-1982 (R)
• Entry into force: 08-03-1982

Bolivia

• Signature: 22-07-1946
• Ratification: 23-12-1949 (R)
• Entry into force: 23-12-1949

Bosnia and Herzegovina

• Ratification: 10-09-1992 (R)
• Entry into force: 10-09-1992

Botswana

• Ratification: 26-02-1975 (R)
• Entry into force: 26-02-1975

Brazil

• Signature: 22-07-1946
• Ratification: 02-06-1948 (R)
• Entry into force: 02-06-1948

Brunei

• Ratification: 25-03-1985 (R)
• Entry into force: 25-03-1985

Bulgaria

• Signature: 22-07-1946
• Ratification: 09-06-1948 (R)
• Entry into force: 09-06-1948
• Renunciation: 29-11-1949
• Termination: 29-11-1949

Burkina Faso

• Ratification: 04-10-1960 (R)
• Entry into force: 04-10-1960

Burundi

• Ratification: 22-10-1962 (R)
• Entry into force: 22-10-1962

Cabo Verde

• Ratification: 05-01-1976 (R)
• Entry into force: 05-01-1976

Cambodia

• Ratification: 17-05-1950 (R)
• Entry into force: 17-05-1950

Cameroon

• Ratification: 06-05-1960 (R)
• Entry into force: 06-05-1960

Canada

• Signature: 22-07-1946
• Ratification: 29-08-1946 (R)
• Entry into force: 07-04-1948

Central African Republic

• Ratification: 20-09-1960 (R)
• Entry into force: 20-09-1960

Chad

• Ratification: 01-01-1961 (R)
• Entry into force: 01-01-1961

Chile

• Signature: 22-07-1946
• Ratification: 15-10-1948 (R)
• Entry into force: 15-10-1948

China

• Ratification: 22-07-1946 (S)
• Entry into force: 07-04-1948
• Hong Kong SAR
  Entry into force: 01-07-1997Macao SAR
  Entry into force: 20-12-1999

Colombia

• Signature: 22-07-1946
• Ratification: 14-05-1959 (R)
• Entry into force: 14-05-1959

Comoros

• Ratification: 09-12-1975 (R)
• Entry into force: 09-12-1975

Cook Islands

• Ratification: 09-05-1984 (R)
• Entry into force: 09-05-1984

Costa Rica

• Signature: 22-07-1946
• Ratification: 17-03-1949 (R)
• Entry into force: 17-03-1949

Côte d'Ivoire

• Ratification: 28-10-1960 (R)
• Entry into force: 28-10-1960

Croatia

• Ratification: 11-06-1992 (R)
• Entry into force: 11-06-1992

Cuba

• Signature: 22-07-1946
• Ratification: 09-05-1950 (R)
• Entry into force: 09-05-1950

Cyprus

• Ratification: 16-01-1961 (R)
• Entry into force: 16-01-1961

Czech Republic

• Ratification: 22-01-1993 (R)
• Entry into force: 22-01-1993

Czechoslovakia (<01-01-1993)

• Signature: 22-07-1946
• Ratification: 01-03-1948 (R)
• Entry into force: 07-04-1948
• Renunciation: 14-04-1950
• Termination: 14-04-1950

Democratic People's Republic of Korea

• Ratification: 19-05-1973 (R)
• Entry into force: 19-05-1973

Democratic Republic of the Congo

• Ratification: 24-02-1961 (R)
• Entry into force: 24-02-1961

Denmark

• Signature: 22-07-1946
• Ratification: 19-04-1948 (R)
• Entry into force: 19-04-1948

Djibouti

• Ratification: 10-03-1978 (R)
• Entry into force: 10-03-1978

Dominica

• Ratification: 13-08-1981 (R)
• Entry into force: 13-08-1981

Dominican Republic

• Signature: 22-07-1946
• Ratification: 21-06-1948 (R)
• Entry into force: 21-06-1948

Ecuador

• Signature: 22-07-1946
• Ratification: 01-03-1949 (R)
• Entry into force: 01-03-1949

Egypt

• Signature: 22-07-1946
• Ratification: 16-12-1947 (R)
• Entry into force: 07-04-1948

El Salvador

• Signature: 22-07-1946
• Ratification: 22-06-1948 (R)
• Entry into force: 22-06-1948

Equatorial Guinea

• Ratification: 05-05-1980 (R)
• Entry into force: 05-05-1980

Eritrea

• Ratification: 24-07-1993 (R)
• Entry into force: 24-07-1993

Estonia

• Ratification: 31-03-1993 (R)
• Entry into force: 31-03-1993

Eswatini

• Ratification: 16-04-1973 (R)
• Entry into force: 16-04-1973

Ethiopia

• Signature: 22-07-1946
• Ratification: 11-04-1947 (R)
• Entry into force: 07-04-1948

Federated States of Micronesia

• Ratification: 14-08-1991 (R)
• Entry into force: 14-08-1991

Fiji

• Ratification: 01-01-1972 (R)
• Entry into force: 01-01-1972

Finland

• Signature: 22-07-1946
• Ratification: 07-10-1947 (R)
• Entry into force: 07-04-1948

France

• Signature: 22-07-1946
• Ratification: 16-06-1948 (R)
• Entry into force: 16-06-1948

Gabon

• Ratification: 21-11-1960 (R)
• Entry into force: 21-11-1960

Gambia, The

• Ratification: 26-04-1971 (R)
• Entry into force: 26-04-1971

Georgia

• Ratification: 26-05-1992 (R)
• Entry into force: 26-05-1992

Germany

• Ratification: 29-05-1951 (R)
• Entry into force: 29-05-1951

Ghana

• Ratification: 08-04-1957 (R)
• Entry into force: 08-04-1957

Greece

• Signature: 22-07-1946
• Ratification: 12-03-1948 (R)
• Entry into force: 07-04-1948

Grenada

• Ratification: 04-12-1974 (R)
• Entry into force: 04-12-1974

Guatemala

• Signature: 22-07-1946
• Ratification: 26-08-1949 (R)
• Entry into force: 26-08-1949

Guinea

• Ratification: 19-05-1959 (R)
• Entry into force: 19-05-1959

Guinea-Bissau

• Ratification: 29-07-1974 (R)
• Entry into force: 29-07-1974

Guyana

• Ratification: 27-09-1966 (R)
• Entry into force: 27-09-1966

Haïti

• Signature: 22-07-1946
• Ratification: 12-08-1947 (R)
• Entry into force: 07-04-1948

Honduras

• Signature: 22-07-1946
• Ratification: 08-04-1949 (R)
• Entry into force: 08-04-1949

Hungary

• Signature: 19-02-1947
• Ratification: 17-06-1948 (R)
• Entry into force: 17-06-1948
• Renunciation: 19-05-1950
• Termination: 19-05-1950

Iceland

• Ratification: 17-06-1948 (R)
• Entry into force: 17-06-1948

India

• Signature: 22-07-1946
• Ratification: 12-01-1948 (R)
• Entry into force: 07-04-1948

Indonesia

• Ratification: 23-05-1950 (R)
• Entry into force: 23-05-1950

Iran

• Signature: 22-07-1946
• Ratification: 23-11-1946 (R)
• Entry into force: 07-04-1948

Iraq

• Signature: 22-07-1946
• Ratification: 23-09-1947 (R)
• Entry into force: 07-04-1948

Ireland

• Signature: 22-07-1946
• Ratification: 20-10-1947 (R)
• Entry into force: 07-04-1948

Israel

• Ratification: 21-06-1949 (R)
• Entry into force: 21-06-1949

Italy

• Signature: 22-07-1946
• Ratification: 11-04-1947 (R)
• Entry into force: 07-04-1948

Jamaica

• Ratification: 21-03-1963 (R)
• Entry into force: 21-03-1963

Japan

• Ratification: 16-05-1951 (R)
• Entry into force: 16-05-1951

Jordan

• Signature: 22-07-1946
• Ratification: 07-04-1947 (R)
• Entry into force: 07-04-1948

Kazakhstan

• Ratification: 19-08-1992 (R)
• Entry into force: 19-08-1992

Kenya

• Ratification: 27-01-1964 (R)
• Entry into force: 27-01-1964

Kiribati

• Ratification: 26-07-1984 (R)
• Entry into force: 26-07-1984

Kuwait

• Ratification: 09-05-1960 (R)
• Entry into force: 09-05-1960

Kyrgyzstan

• Ratification: 29-04-1992 (R)
• Entry into force: 29-04-1992

Laos

• Ratification: 17-05-1950 (R)
• Entry into force: 17-05-1950

Latvia

• Ratification: 04-12-1991 (R)
• Entry into force: 04-12-1991

Lebanon

• Signature: 22-07-1946
• Ratification: 19-01-1949 (R)
• Entry into force: 19-01-1949

Lesotho

• Ratification: 07-07-1967 (R)
• Entry into force: 07-07-1967

Liberia

• Signature: 22-07-1946
• Ratification: 14-03-1947 (R)
• Entry into force: 07-04-1948

Libya

• Ratification: 16-05-1952 (R)
• Entry into force: 16-05-1952

Lithuania

• Ratification: 25-11-1991 (R)
• Entry into force: 25-11-1991

Luxembourg

• Signature: 22-07-1946
• Ratification: 03-06-1949 (R)
• Entry into force: 03-06-1949

Madagascar

• Ratification: 16-01-1961 (R)
• Entry into force: 16-01-1961

Malawi

• Ratification: 09-04-1965 (R)
• Entry into force: 09-04-1965

Malaysia

• Ratification: 24-04-1958 (R)
• Entry into force: 24-04-1958

Maldives

• Ratification: 05-11-1965 (R)
• Entry into force: 05-11-1965

Mali

• Ratification: 17-10-1960 (R)
• Entry into force: 17-10-1960

Malta

• Ratification: 01-02-1965 (R)
• Entry into force: 01-02-1965

Marshall Islands

• Ratification: 05-06-1991 (R)
• Entry into force: 05-06-1991

Mauritania

• Ratification: 07-03-1961 (R)
• Entry into force: 07-03-1961

Mauritius

• Ratification: 09-12-1968 (R)
• Entry into force: 09-12-1968

Mexico

• Signature: 22-07-1946
• Ratification: 07-04-1948 (R)
• Entry into force: 07-04-1948

Moldova

• Ratification: 04-05-1992 (R)
• Entry into force: 04-05-1992

Monaco

• Ratification: 08-07-1948 (R)
• Entry into force: 08-07-1948

Mongolia

• Ratification: 18-04-1962 (R)
• Entry into force: 18-04-1962

Montenegro

• Ratification: 29-08-2006 (R)
• Entry into force: 29-08-2006

Morocco

• Ratification: 14-05-1956 (R)
• Entry into force: 14-05-1956

Mozambique

• Ratification: 11-09-1975 (R)
• Entry into force: 11-09-1975

Myanmar

• Ratification: 01-07-1948 (R)
• Entry into force: 01-07-1948

Namibia

• Ratification: 23-04-1990 (R)
• Entry into force: 23-04-1990

Nauru

• Ratification: 09-05-1994 (R)
• Entry into force: 09-05-1994

Nepal

• Ratification: 02-09-1953 (R)
• Entry into force: 02-09-1953

Netherlands, the Kingdom of the

• Signature: 22-07-1946
• Ratification: 25-04-1947 (R)
• Entry into force: 07-04-1948

New Zealand

• Signature: 22-07-1946
• Ratification: 10-12-1946 (R)
• Entry into force: 07-04-1948

Nicaragua

• Signature: 22-07-1946
• Ratification: 24-04-1950 (R)
• Entry into force: 24-04-1950

Niger

• Ratification: 05-10-1960 (R)
• Entry into force: 05-10-1960

Nigeria

• Ratification: 25-11-1960 (R)
• Entry into force: 25-11-1960

Niue

• Ratification: 05-05-1994 (R)
• Entry into force: 05-05-1994

North Macedonia

• Ratification: 22-04-1993 (R)
• Entry into force: 22-04-1993

Norway

• Signature: 22-07-1946
• Ratification: 18-08-1947 (R)
• Entry into force: 07-04-1948

Oman

• Ratification: 28-05-1971 (R)
• Entry into force: 28-05-1971

Pakistan

• Ratification: 23-06-1948 (R)
• Entry into force: 23-06-1948

Palau

• Ratification: 09-03-1995 (R)
• Entry into force: 09-03-1995

Panama

• Signature: 22-07-1946
• Ratification: 20-02-1951 (R)
• Entry into force: 20-02-1951

Papua New Guinea

• Ratification: 29-04-1976 (R)
• Entry into force: 29-04-1976

Paraguay

• Signature: 22-07-1946
• Ratification: 04-01-1949 (R)
• Entry into force: 04-01-1949

Peru

• Signature: 22-07-1946
• Ratification: 11-11-1949 (R)
• Entry into force: 11-11-1949

Philippines

• Signature: 22-07-1946
• Ratification: 09-07-1948 (R)
• Entry into force: 09-07-1948

Poland

• Signature: 22-07-1946
• Ratification: 06-05-1948 (R)
• Entry into force: 06-05-1948
• Renunciation: 15-10-1950
• Termination: 15-10-1950

Portugal

• Signature: 22-07-1946
• Ratification: 13-02-1948 (R)
• Entry into force: 07-04-1948

Qatar

• Ratification: 11-05-1972 (R)
• Entry into force: 11-05-1972

Republic of Korea, the

• Ratification: 17-08-1949 (R)
• Entry into force: 17-08-1949

Republic of the Congo

• Ratification: 26-10-1960 (R)
• Entry into force: 26-10-1960

Romania

• Ratification: 08-06-1948 (R)
• Entry into force: 08-06-1948
• Renunciation: 20-02-1950
• Termination: 20-02-1950

Russian Federation

• Signature: 22-07-1946
• Ratification: 24-03-1948 (R)
• Entry into force: 07-04-1948
• Renunciation: 12-02-1949
• Termination: 12-02-1949

Rwanda

• Ratification: 07-11-1962 (R)
• Entry into force: 07-11-1962

Saint Kitts and Nevis

• Ratification: 03-12-1984 (R)
• Entry into force: 03-12-1984

Saint Lucia

• Ratification: 11-11-1980 (R)
• Entry into force: 11-11-1980

Saint Vincent and the Grenadines

• Ratification: 01-09-1983 (R)
• Entry into force: 01-09-1983

Samoa

• Ratification: 16-05-1962 (R)
• Entry into force: 16-05-1962

San Marino

• Ratification: 12-05-1980 (R)
• Entry into force: 12-05-1980

São Tomé e Principe

• Ratification: 23-03-1976 (R)
• Entry into force: 23-03-1976

Saudi Arabia

• Signature: 22-07-1946
• Ratification: 26-05-1947 (R)
• Entry into force: 07-04-1948

Senegal

• Ratification: 31-10-1960 (R)
• Entry into force: 31-10-1960

Serbia

• Ratification: 28-11-2000 (R)
• Entry into force: 28-11-2000

Seychelles

• Ratification: 11-09-1979 (R)
• Entry into force: 11-09-1979

Sierra Leone

• Ratification: 20-10-1961 (R)
• Entry into force: 20-10-1961

Singapore

• Ratification: 25-02-1966 (R)
• Entry into force: 25-02-1966

Slovakia

• Ratification: 04-02-1993 (R)
• Entry into force: 04-02-1993

Slovenia

• Ratification: 07-05-1992 (R)
• Entry into force: 07-05-1992

Solomon Islands

• Ratification: 04-04-1983 (R)
• Entry into force: 04-04-1983

Somalia

• Ratification: 26-01-1961 (R)
• Entry into force: 26-01-1961

South Africa

• Signature: 22-07-1946
• Ratification: 07-08-1947 (R)
• Entry into force: 07-04-1948

Spain

• Ratification: 28-05-1951 (R)
• Entry into force: 28-05-1951

Sri Lanka

• Ratification: 07-07-1948 (R)
• Entry into force: 07-07-1948

Sudan

• Ratification: 14-05-1956 (R)
• Entry into force: 14-05-1956

Suriname

• Ratification: 25-03-1976 (R)
• Entry into force: 25-03-1976

Sweden

• Signature: 13-01-1947
• Ratification: 28-08-1947 (R)
• Entry into force: 07-04-1948

Switzerland

• Signature: 22-07-1946
• Ratification: 26-03-1947 (R)
• Entry into force: 07-04-1948

Syria

• Signature: 22-07-1946
• Ratification: 18-12-1946 (R)
• Entry into force: 07-04-1948

Tajikistan

• Ratification: 04-05-1992 (R)
• Entry into force: 04-05-1992

Tanzania

• Ratification: 15-03-1962 (R)
• Entry into force: 15-03-1962

Thailand

• Signature: 22-07-1946
• Ratification: 26-09-1947 (R)
• Entry into force: 07-04-1948

Timor-Leste

• Ratification: 27-09-2002 (R)
• Entry into force: 27-09-2002

Togo

• Ratification: 13-05-1960 (R)
• Entry into force: 13-05-1960

Tonga

• Ratification: 14-08-1975 (R)
• Entry into force: 14-08-1975

Trinidad and Tobago

• Ratification: 03-01-1963 (R)
• Entry into force: 03-01-1963

Tunisia

• Ratification: 14-05-1956 (R)
• Entry into force: 14-05-1956

Türkiye

• Signature: 22-07-1946
• Ratification: 02-01-1948 (R)
• Entry into force: 07-04-1948

Turkmenistan

• Ratification: 02-07-1992 (R)
• Entry into force: 02-07-1992

Tuvalu

• Ratification: 07-05-1993 (R)
• Entry into force: 07-05-1993

Uganda

• Ratification: 07-03-1963 (R)
• Entry into force: 07-03-1963

Ukraine

• Signature: 22-07-1946
• Ratification: 03-04-1948 (R)
• Entry into force: 07-04-1948
• Renunciation: 14-02-1949
• Termination: 14-02-1949

United Arab Emirates

• Ratification: 30-03-1972 (R)
• Entry into force: 30-03-1972

United Kingdom

• Ratification: 22-07-1946 (S)
• Entry into force: 07-04-1948

Uruguay

• Signature: 22-07-1946
• Ratification: 22-04-1949 (R)
• Entry into force: 22-04-1949

Uzbekistan

• Ratification: 22-05-1992 (R)
• Entry into force: 22-05-1992

Vanuatu

• Ratification: 07-03-1983 (R)
• Entry into force: 07-03-1983

Venezuela

• Signature: 22-07-1946
• Ratification: 07-07-1948 (R)
• Entry into force: 07-07-1948

Vietnam

• Ratification: 17-05-1950 (R)
• Entry into force: 17-05-1950

Yemen

• Ratification: 06-05-1968 (R)
• Entry into force: 06-05-1968

Yugoslavia (< 25-06-1991)

• Signature: 22-07-1946
• Ratification: 19-11-1947 (R)
• Entry into force: 07-04-1948

Zambia

• Ratification: 02-02-1965 (S)
• Entry into force: 02-02-1965

Zimbabwe

• Ratification: 16-05-1980 (R)
• Entry into force: 16-05-1980

United States of America

• Signature: 22-07-1946
• Ratification: 21-06-1948 (R)
• Entry into force: 21-06-1948
• Reservations / Declarations: Yes
• Objections: No

• reservation
  20-01-2021
  This letter constitutes a retraction by the Government of the United States of the letter dated July 6, 2020, notifying you that the Government of the United States intended to withdraw from the World Health Organization (WHO), effective July 6, 2021. The United States intends to remain a member of the World Health Organization. The WHO plays a crucial role in the world's fight against the deadly COVID-19 pandemic as well as countless other threats to global health and health security. The United States will continue to be a full participant and a global leader in confronting such threats and advancing global health and health security.