International Convention on Tonnage Measurements of Ships, 1969 (TONNAGE 1969)

General Detail

General Information

  1. Type: Convention
  2. Date of signature:
  3. Place of signature: London, United Kingdom
  4. Depositary:
  5. Date of entry into force: 18/07/1982

Category

Transport and telecommunications

Sub category

Maritime shipping and load lines

Groups

IMO

What is it about?

The Convention provides for gross and net tonnages, both of which are calculated independently. Previously, various systems were used to calculate the tonnage of merchant ships. Although all went back to the method devised by George Moorsom of the British Board of Trade in 1854, there were considerable differences between them and it was recognized that there was a great need for one single international system. The rules apply to all ships built on or after 18 July 1982, while ships built before that date were allowed to retain their existing tonnage for 12 years after entry into force.

Why is it relevant?

The Convention is relevant as it creates an international standard and eliminates the differences that existed between the various measurement systems that predated it, providing in their place a unified and consistent method for calculating ship tonnage.

Additional Information

N/A

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Country ratifications
CountryRatification date
Albania03/04/2003
Algeria04/10/1976
Angola04/10/2001
Antigua and Barbuda03/03/1987
Argentina24/01/1979
Australia21/05/1982
Austria07/10/1975
Azerbaijan01/07/1997
Bahamas22/07/1976
Bahrain21/10/1985
Bangladesh06/11/1981
Barbados01/09/1982
Belgium02/06/1975
Belize30/11/1970
Benin01/11/1985
Bolivia (Plurinational State of)04/06/1999
Brazil30/11/1970
Brunei Darussalam23/10/1986
Bulgaria14/10/1982
Cambodia28/11/1994
Canada18/07/1994
Cape Verde04/07/2003
Chile22/11/1982
China08/04/1980
Colombia16/06/1976
Comoros22/11/2000
Congo07/08/2002
Costa Rica27/05/2009
Cote d'Ivoire05/10/1987
Croatia08/10/1981
Cuba09/11/1982
Cyprus09/05/1986
Czech Republic01/01/1993
Democratic People's Republic of Korea18/10/1989
Denmark22/06/1982
Djibouti12/10/2015
Dominica21/06/2000
Ecuador21/09/1995
El Salvador25/04/1997
Equatorial Guinea24/04/1996
Eritrea22/04/1996
Estonia16/12/1991
Ethiopia18/07/1985
Fiji29/11/1972
Finland06/02/1973
France31/10/1980
Gabon12/04/2005
Gambia01/11/1991
Georgia19/04/1994
Germany07/05/1975
Ghana13/12/1973
Greece19/08/1983
Grenada28/06/2004
Guatemala20/02/2008
Guinea19/01/1981
Guyana10/12/1997
Haiti06/04/1989
Honduras02/12/1998
Hungary23/05/1975
Iceland17/06/1970
India26/05/1977
Indonesia14/03/1989
Iran28/12/1973
Iraq29/08/1972
Ireland11/04/1985
Israel13/02/1975
Italy10/09/1974
Jamaica08/09/2000
Japan17/07/1980
Jordan03/10/1995
Kazakhstan07/03/1994
Kenya15/12/1992
Kiribati05/02/2007
Kuwait02/03/1983
Latvia11/05/1998
Lebanon16/12/1994
Liberia25/09/1972
Libyan Arab Jamahiriya28/04/2005
Lithuania04/12/1991
Luxembourg14/02/1991
Malaysia24/04/1984
Maldives02/06/1983
Malta20/03/1989
Marshall Islands25/04/1989
Mauritania24/11/1997
Mauritius11/10/1988
Mexico14/07/1972
Moldova11/10/2005
Monaco19/01/1971
Mongolia26/06/2002
Montenegro03/06/2006
Morocco28/06/1990
Mozambique30/10/1991
Myanmar04/05/1988
Namibia27/11/2000
Netherlands16/06/1981
New Zealand06/01/1978
Nicaragua02/02/1994
Nigeria13/11/1984
Norway26/08/1971
Oman24/09/1990
Pakistan17/10/1994
Palau29/09/2011
Panama09/03/1978
Papua New Guinea25/10/1993
Peru16/07/1982
Philippines06/09/1978
Poland27/07/1976
Portugal01/06/1987
Qatar03/02/1986
Republic of Korea18/01/1980
Romania21/05/1976
Russian Federation20/11/1969
Saint Kitts and Nevis11/06/2004
Saint Lucia20/05/2004
Saint Vincent and the Grenadines28/10/1983
Samoa18/05/2004
Sao Tome and Principe29/10/1998
Saudi Arabia20/01/1975
Senegal16/01/1997
Serbia03/06/2006
Sierra Leone26/07/2001
Singapore06/06/1985
Slovakia01/01/1993
Slovenia25/06/1991
Solomon Islands30/06/2004
South Africa24/11/1982
Spain06/11/1972
Sri Lanka11/03/1992
Sudan21/05/2002
Sweden11/05/1979
Switzerland21/06/1977
Syrian Arab Republic06/02/1975
Thailand11/06/1996
Togo19/07/1989
Tonga12/04/1977
Trinidad and Tobago15/02/1979
Tunisia13/01/1999
Turkey16/05/1980
Turkmenistan04/02/2009
Tuvalu22/08/1985
Ukraine25/10/1993
United Arab Emirates15/12/1983
United Kingdom08/01/1971
United Republic of Tanzania28/03/2001
United States of America10/11/1982
Uruguay03/02/1989
Vanuatu13/01/1989
Venezuela06/07/1983
Viet Nam18/12/1990
Yemen06/03/1979
Treaties analysis
YearRatifications
19691
19703
19713
19725
19733
19741
19757
19765
19773
19783
19794
19807
19814
198210
19836
19842
19856
19863
19873
19882
19898
19903
19916
19922
19934
19947
19952
19963
19975
19983
19992
20004
20013
20023
20032
20045
20053
20062
20071
20081
20092
20111
20151
Total154
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