Member States
110 Member States
IMSO has currently 110 Member States. Any State can become a Member of IMSO. Procedures for accession are described in Article 9 of the Amended Convention.
Representatives
Only representatives accredited by the proper authority of the Member State, in accordance with Rule 7 of the Rules of Procedures for the IMSO Assembly, can participate in meetings of the Assembly of Parties. The relevant documentation on the Rules of Procedure of the IMSO Assembly can be accessed here: English, French, Russian, Spanish
Membership
Member state
Since
Algeria
16 July 1979
Angola
7 February 2022
Antigua and Barbuda
12 October 2009
Argentina
2 October 1979
Australia
16 July 1979
Bahamas
12 May 1994
Bahrain
8 January 1986
Bangladesh
17 September 1993
Barbados
8 March 2023
Belarus, Republic of
16 July 1979
Belgium
16 July 1979
Bolivia, Plurinational State of
9 March 2018
Bosnia and Herzegovina
17 April 1998
Brazil
16 July 1979
Brunei Darussalam
4 October 1993
Bulgaria
16 July 1979
Cameroon
23 October 1990
Canada
16 July 1979
Chile
26 February 1981
China
16 July 1979
Colombia
28 October 1987
Comoros
22 November 2000
Cook Islands
31 October 2007
Costa Rica
5 June 1995
Croatia
24 November 1992
Cuba
25 July 1989
Cyprus
8 June 1992
Czechia
7 December 1988
Democratic People’s Republic of Korea
15 October 2013
Denmark
16 July 1979
Ecuador
11 November 2015
Egypt
16 July 1979
Fiji
8 March 2016
Finland
16 July 1979
France
18 October 1979
Gabon
28 December 1984
Georgia
12 January 2015
Member state
Since
Germany
23 October 1979
Ghana
11 July 1995
Greece
16 July 1979
Honduras
16 November 2016
Hungary
24 July 1997
Iceland
26 March 1991
India
16 July 1979
Indonesia
9 October 1986
Iran, Islamic Republic of
12 October 1984
Iraq
21 July 1980
Israel
13 October 1987
Italy
16 July 1979
Japan
16 July 1979
Jordan
18 November 2014
Kenya
21 July 1998
Kuwait
16 July 1979
Latvia
22 March 1995
Lebanon
29 December 1994
Liberia
14 November 1980
Libya
29 January 1999
Malaysia
12 June 1986
Maldives
20 July 2023
Malta
11 January 1991
Marshall Islands
12 May 1997
Mauritius
7 December 1992
Mexico
10 January 1994
Monaco
1 October 1990
Mongolia
28 September 2011
Montenegro
3 June 2006
Morocco
4 August 1999
Mozambique
18 April 1990
Netherlands
16 July 1979
New Zeleand
16 July 1979
Nigeria
23 February 1988
Norway
16 July 1979
Oman
30 December 1980
Pakistan
6 February 1985
Member state
Since
Palau
29 September 2011
Panama
26 October 1987
Peru
30 October 1987
Philippines
30 March 1981
Poland
16 July 1979
Portugal
16 July 1979
Qatar
28 September 1987
Republic of Korea
16 September 1985
Romania
27 September 1990
Russian Federation
16 July 1979
Saudi Arabia
5 October 1983
Senegal
16 June 1994
Serbia
3 June 2006
Singapore
16 July 1979
Slovakia
20 July 1993
Solomon Islands
20 November 2020
South Africa
3 March 1994
Spain
16 July 1979
Sri Lanka
15 December 1981
Sweden
16 July 1979
Switzerland
17 May 1989
Thailand
14 December 1994
Tonga
18 September 2003
Tunisia
9 May 1983
TÜRKİYE
16 November 1989
Tuvalu
8 August 2023
Ukraine
16 July 1979
United Arab Emirates
13 January 1983
United Kingdom of Great Britain and Northern Ireland
16 July 1979
United Republic of Tanzania
21 December 1998
United States of America
16 July 1979
Uruguay
16 September 2022
Vanuatu
20 August 2008
Venezuela, Bolivarian Republic of
27 April 2005
Viet Nam
15 April 1998
Yemen
24 January 2011
Become a Member State of IMSO
Becoming a Member State of IMSO demonstrates the commitment of a Government to international cooperation in the field of satellite communication in maritime transport.
To become a Member State of IMSO, a State should ratify, accept, approve or accede to the Convention on the International Mobile Satellite Organization, as amended in 2008, by depositing the appropriate instrument of ratification, acceptance, approval or accession with the Secretary-General of IMO who is the Depository of the Convention.
Guidance for Governments considering becoming a member of IMSO are available in English, French, Spanish and Russian, as well as a draft model of accession to the IMSO Convention, including the 2008 amendments, are also available in English, French, Spanish and Russian.
The entry into force of the Convention for a new Member State will take place from the day on which the instrument of ratification, acceptance, approval or accession is deposited with the Depository of the Convention.
How to accept the IMSO Convention 2008 amendments if already a Member State of IMSO
Following the decision of the IMO Maritime Safety Committee (MSC), at its eighty-second session, the IMSO Assembly, at its twentieth session held in September 2008, adopted amendments to the Convention, “the 2008 amendments” and decided that these amendments should be applied provisionally from 6 October 2008, pending their formal entry into force which has not yet occurred.
To accept the IMSO Convention 2008 amendments, a State should ratify, accept, approve or accede to IMSO Convention 2008 amendments by depositing the appropriate instrument of ratification, acceptance, approval or accession with the Secretary-General of IMO who is the Depository of the Convention.
A draft model of accession to the IMSO Convention 2008 amendments is available in English, French, Spanish and Russian.
Amended Protocol on the Privileges and Immunities of IMSO
A Member State may subsequently proceed to ratify, accept, approve or accede to the amended Protocol on the Privileges and Immunities of the International Mobile Satellite Organization by depositing with the Director General of IMSO the appropriate instrument of ratification, acceptance, approval or accession.
A draft model of accession to the Protocol and the Amending Agreement is available in English, French, Spanish and Russian.
If a Member States is already Party to the Protocol and is considering to ratify, accept, approve or accede to the Amending Agreement to the protocol, a draft model of accession to the Amending Agreement to the Protocol is available in English, French, Spanish and Russian.
The entry into force for the Member State of the Protocol on the Privileges and Immunities of the International Mobile Satellite Organization will take place 30 days after the instrument of ratification, acceptance, approval or accession is deposited with the Director General of IMSO.
