Convention on the High Seas (April 29, 1958)

Countries/Territories	Entry into force	Ratification *	Simple signature	Reservation
Afghanistan	Sep 30, 1962	Apr 28, 1959 [1]	Oct 30, 1958	-
Albania	Jan 6, 1965	Dec 7, 1964 [2]	-	-
Argentina	-	-	Apr 29, 1958	-
Australia	Jun 13, 1963	May 14, 1963 [1]	Oct 30, 1958	-
Austria	Feb 9, 1974	Jan 10, 1974 [1]	Oct 27, 1958	-
Belgium	Feb 5, 1972	Jan 6, 1972 [2]	-	-
Burkina Faso	Nov 3, 1965	Oct 4, 1965 [2]	-	-
Bulgaria	Sep 30, 1962	Aug 31, 1962 [1]	Oct 31, 1958	Aug 31, 1962
Bosnia and Herzegovina	Sep 1, 1993	Sep 1, 1993 [4]	-	-
Belarus	Sep 30, 1962	Feb 27, 1961 [1]	Oct 30, 1958	-
Bolivia (Plurinational State of)	-	-	Oct 17, 1958	-
Central African Republic	Nov 14, 1962	Oct 15, 1962 [2]	-	-
Canada	-	-	Apr 29, 1958	-
Switzerland	Jun 17, 1966	May 18, 1966 [1]	May 24, 1958	-
Colombia	-	-	Apr 29, 1958	-
Costa Rica	Mar 17, 1972	Feb 16, 1972 [1]	Apr 29, 1958	-
Cuba	-	-	Apr 29, 1958	-
Cyprus	May 23, 1988	May 23, 1988 [2]	-	-
Czech Republic	Feb 22, 1993	Feb 22, 1993 [4]	-	-
Germany	Aug 25, 1973	Jul 26, 1973 [1]	Oct 30, 1958	-
Denmark	Oct 26, 1968	Sep 26, 1968 [1]	Apr 29, 1958	-
Dominican Republic	Sep 10, 1964	Aug 11, 1964 [1]	Apr 29, 1958	-
Spain	Mar 27, 1971	Feb 25, 1971 [2]	-	-
Finland	Mar 18, 1965	Feb 16, 1965 [1]	Oct 27, 1958	-
Fiji	Mar 25, 1971	Mar 25, 1971 [4]	-	-
France	-	-	Oct 30, 1958	-
United Kingdom	Sep 30, 1962	Mar 14, 1960 [1]	Sep 9, 1958	-
Ghana	-	-	Apr 29, 1958	-
Guatemala	Sep 30, 1962	Nov 27, 1961 [1]	Apr 29, 1958	-
Croatia	Aug 3, 1992	Aug 3, 1992 [4]	-	-
Haiti	Sep 30, 1962	Mar 29, 1960 [1]	Apr 29, 1958	-
Hungary	Sep 30, 1962	Dec 6, 1961 [1]	Oct 31, 1958	-
Indonesia	Sep 30, 1962	Aug 10, 1961 [1]	May 8, 1958	Aug 10, 1961
Ireland	-	-	Oct 2, 1958	-
Iran, Islamic Republic of	-	-	May 28, 1958	May 28, 1958
Iceland	-	-	Apr 29, 1958	-
Israel	Sep 30, 1962	Sep 6, 1961 [1]	Apr 29, 1958	-
Italy	Jan 16, 1965	Dec 17, 1964 [2]	-	-
Jamaica	Oct 8, 1965	Oct 8, 1965 [4]	-	-
Japan	Jul 10, 1968	Jun 10, 1968 [2]	-	-
Kenya	Jul 20, 1969	Jun 20, 1969 [2]	-	-
Cambodia	Sep 30, 1962	Mar 18, 1960 [2]	-	-
Liberia	-	-	May 27, 1958	-
Sri Lanka	-	-	Oct 30, 1958	-
Lesotho	Oct 23, 1973	Oct 23, 1973 [4]	-	-
Latvia	Dec 17, 1992	Nov 17, 1992 [2]	-	-
Madagascar	Sep 30, 1962	Jul 31, 1962 [2]	-	-
Mexico	Sep 1, 1966	Aug 2, 1966 [2]	-	Aug 2, 1966
Mongolia	Nov 15, 1976	Oct 15, 1976 [2]	-	-
Mauritius	Oct 5, 1970	Oct 5, 1970 [4]	-	-
Malawi	Dec 3, 1965	Nov 3, 1965 [2]	-	-
Malaysia	Sep 30, 1962	Dec 21, 1960 [2]	-	-
Nigeria	Sep 30, 1962	Jun 26, 1961 [4]	-	-
Netherlands	Mar 20, 1966	Feb 18, 1966 [1]	Oct 31, 1958	-
Nepal	Jan 27, 1963	Dec 28, 1962 [1]	Apr 29, 1958	-
New Zealand	-	-	Oct 29, 1958	-
Pakistan	-	-	Oct 31, 1958	-
Panama	-	-	May 2, 1958	-
Poland	Sep 30, 1962	Jun 29, 1962 [1]	Oct 31, 1958	-
Portugal	Feb 7, 1963	Jan 8, 1963 [1]	Oct 28, 1958	-
Romania	Sep 30, 1962	Dec 12, 1961 [1]	Oct 31, 1958	-
Russian Federation	Sep 30, 1962	Nov 22, 1960 [1]	Oct 30, 1958	-
Senegal	Sep 30, 1962	Apr 25, 1961 [2]	-	-
Solomon Islands	Sep 3, 1981	Sep 3, 1981 [4]	-	-
Sierra Leone	Sep 30, 1962	Mar 13, 1962 [4]	-	-
Slovakia	May 28, 1993	May 28, 1993 [4]	-	-
Slovenia	Jul 6, 1992	Jul 6, 1992 [4]	-	-
Eswatini, Kingdom of	Nov 15, 1970	Oct 16, 1970 [2]	-	-
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	Oct 14, 1964	Sep 14, 1964 [2]	-	-
Ukraine	Sep 30, 1962	Jan 12, 1961 [1]	Oct 30, 1958	-
Uruguay	-	-	Apr 29, 1958	-
United States of America	Sep 30, 1962	Apr 12, 1961 [1]	Sep 15, 1958	-
Holy See	-	-	Apr 30, 1958	-
Venezuela, Boliv. Rep. of	Sep 30, 1962	Aug 15, 1961 [1]	Oct 30, 1958	-
Serbia	Mar 12, 2001	Mar 12, 2001 [4]	-	-
South Africa	May 9, 1963	Apr 9, 1963 [2]	-	-
Montenegro	Oct 23, 2006	Oct 23, 2006 [4]	-	-
Lebanon	-	-	May 29, 1958	-

* [1] Ratification [2] Accession/approbation [3] Acceptance/approval [4] Succession [5] Consent to be bound [6] Definite signature